1950 Jun 27, 02h30m

Aristarchus

Blue glare, base inner W wall

Bartlett

Bartlett 1967

1950 Jun 27

Herodotus

Bright point in crater

Bartlett

Strol. Astr. 1962

1950 Jun 28, 03h27m

Aristarchus

Blue glare, rim of W wall

Bartlett

Bartlett 1967

1950 Jun 29, 05h30m

Aristarchus

Strong bluish glare; E, SE wall

Bartlett

Bartlett 1967

1950 Jul 26, 02h52m

Aristarchus

Blue glare, base inner W wall

Bartlett

Bartlett 1967

1950 Jul 31, 04h50m

Aristarchus

Violet glare, E, NE rim

Bartlett

Bartlett 1967

1950 Aug 28, 04h25m

Aristarchus

Intense blue-violet glare; E wall bright spot, E, NE rim

Bartlett

Bartlett 1967

1951 Jan 21

E of Lichtenberg

Red patch

Baum

Strol. Astr. 1951

1951 Feb 4, 21h00m - 23h00m

W of Endymion; 2hr

Mist over peak

Baum

Baum 1966

1951 May 17

Gassendi

Bright speck of short duration

Wilkins

Moore 1953, p.118

1951 Aug 20

W.H. Pickering (Messier A)

Brilliant white patch inside crater

Moore

Moore 1953, p.147

1951 Oct 20

W.H. Pickering (Messier A)

Bright circular patch

Moore

Moore obs. book

1952 Apr 3

N/A

Twenty-one spots were charted, one surrounded by a light area, while three streaks were seen in the NW quarter.

Wilkins, Moore

Wilkins and Moore 1958

1952 Apr 4

Plato

Obscuration of crater floor

Cragg

Moore 1953, 1965

1952 Sep 9, 23h00m

Calippus

Broad hazy band of light across floor (observer gave observation low weight

Moore

Moore obs. book

1952 Dec 24

Theaetetus

Hazy line of light

Moore

Wilkins and Moore 1958, p.238

1953 Apr 18

N/A

Faint extension of cusps

Wilkins

Wilkins 1954

1953 Nov 15, 02h00m

Near Pallas

Very bright spot on illuminated part near terminator seen and photographed

Stuart

Strolling Astr. 1956; Stuart 1957

1954 Mar 23

Atlas

Violet tint in Atlas

Delmotte

Delmotte

1954 May 10

Crater in Ptolemaeus

Flash

Firsoff

Firsoff 1962 ed., p.53

1954 May 11, 20h00m

Eratosthenes

Central mountain group invisible, though surrounding details very clear

Cattermole

Contrib. by Moore

1954 Jul 14, 04h39m

Aristarchus

E wall bright spot; violet glare

Bartlett

Bartlett 1967

1954 Jul 16, 05h35m

Aristarchus

Whole interior of strong violet ting; violet tint in nimbus and N and NE of crater

Bartlett

Bartlett 1967

1954 Jul 17, 07h05m

Aristarchus

Pale violet tint on surface NE of crater; no color elsewhere

Bartlett

Bartlett 1967

1954 Jul 24, 07h19m

Aristarchus

Crater filled with pale violet light

Bartlett

Bartlett 1967

1954 Aug 11, 22h00m

Aristarchus

Brilliant in red (filter), variable

Firsoff

Firsoff 1966

1954 Aug 18

Aristarchus

Brilliant blue-violet glare over E and NE walls

Bartlett

Contrib. by Moore

1954 Sep 8, 20h00m

Proclus

Brightness variation in blue light

Firsoff

Firsoff 1962 ed., p.83

1954 Oct 8, 10

Timocharis

Red glow

Firsoff

Firsoff 1962, 1966

1954 Oct 11, 04h57m

Aristarchus

Violet tint on floor, E wall and central peak; intermittent

Bartlett

Bartlett 1967

1954 Oct 12, 01h32m

Aristarchus

Pale violet radiance; S wal, SE, E, NE walls; central peak

Bartlett

Bartlett 1967

1954 Oct 12, 04h09m

Aristarchus

Strong violet tint E half of floor; very faint W half of floor and W wall. Dark violet in nimbus; pale violet on plateau

Bartlett

Bartlett 1967

1954 Oct 13, 02h00m

Aristarchus

Bright blue-violet glare, E rim; pale violet radiance within crater and around S wall bright spot. Dark violet in nimbus; pale violet on plateau.

Bartlett

Bartlett 1967

1954 Oct 13, 05h15m

Aristarchus

Scarcely perceptible violet radiance within crater; wall bands look faint

Bartlett

Bartlett 1967

1954 Oct 18, 06h47m

Aristarchus

Strong blue-violet glare, E wall bright spot, E wall and on central peak

Bartlett

Bartlett 1967

1954 Nov 5

Copernicus

Bright point

Johnstone

Strol. Astr. 1962

1954 Nov 7, 23h20m

Kepler

Bright point just outside E wall

Lugo

J.B.A.A. 1955

1954 Nov 12, 02h42m

Aristarchus

Blue-violet glare; E wall bright spot and whole length of E wall. Suspected violet tint in N and NE of crater; Certainly on plateau. Greatly faded by 05h07m

Bartlett

Bartlett 1967

1954 Dec 12, 02h44m

Aristarchus

Strong violet glare, E rim, changing to brown

Bartlett

Bartlett 1967

1955 Jan 8, 00h46m

Aristarchus

Strong violet glare whole length of E rim; brightest SE and around E wall bright spot

Bartlett

Bartlett 1967

1955 Jan 12, 04h54m

Aristarchus

Blue-violet glare; E wall bright spot, E, NE rim

Bartlett

Bartlett 1967

1955 Apr 2, 03h20m - 05h00m

Straight-wall region; ~1 hr 40 min

Small craters between Birt and fault invisible at times under excellent viewing conditions, while craterlets on E side were continually observed

Capen

Capen 1955, 1967

1955 Apr 5, 03h20m

Aristarchus

E wall and glacis; violet; uncertain

Bartlett

Bartlett 1967

1955 Apr 24

Near Posidonius

White flash of short duration N of Mare Serenitatis near Posidonius

Wykes

Strol. Astr. 1955

1955 May 5, 03h30m

Aristarchus

Pale violet tint in E half of floor; violet band at base, E side of central peak

Bartlett

Bartlett 1967

1955 May 7-8

Lictenberg

N/A

Nicolini

Azevado 1962

1955 May 24

Near South Pole

"Glitter" suggesting electrical discharge

Firsoff

Firsoff 1962 ed., p.131

1955 Jun 25, 20h30m

Theophilus

Mistiness; absent the next night

Firsoff

Firsoff 1962 ed., p.84

1955 Jul 3, 22h00m

Schroter's Valley

Starlike point

Firsoff

Firsoff 1962 ed., Pl.X

1955 Jul 13

Aristarchus

Brilliant in blue and green

Firsoff

Firsoff 1966

1955 Aug 3, 04h50m

Aristarchus

Plateau only; pale violet tint

Bartlett

Bartlett 1967

1955 Aug 3

Manilius, Timocharis

Manilius extraordinarily brilliant; Timocharis bright in blue, appears large and diffuse

Firsoff

Firsoff 1966

1955 Aug 26

Near Carpathians; ~35 sec

Bright flare on dark side similar to 2nd mag star

McCorkle

Sky and Tel. 1955

1955 Aug 30, 03h40m

Aristarchus

Floor, base inner W wall, NW wall; faint bluish glare

Bartlett

Bartlett 1967

1955 Sep 7, 03h20m

Copernicus

Brightened in blue

Firsoff

Firsoff 1966

1955 Sep 7, 04h52m

Aristarchus

Strong blue-violet glare; E, NE rim; also E base of central peak. Dark violet, nimbus.

Bartlett

Bartlett 1967

1955 Sep 8, 04h32m

Aristarchus

Strong bluish glare on E, NE wall, on S edge of E wall bright spot, and bordering both edges of the bright floor band, passing around W of central peak. Dark violet tint in nimbus.

Bartlett

Bartlett 1967

1955 Sep 8

Taurus Mountains

Two flashes from edge of Taurus Mountains

Lambert

Sky and Tel. 1955

1955 Sep 9, 02h58m

Aristarchus

Floor; blue clay color

Bartlett

Bartlett 1967

1955 Sep 28, 23h00m

Cobrahead

Obscured by brown patch

Bestwick

Contrib. by Moore

1955 Oct 2, 05h42m

Aristarchus

Violet glare, E, NE rim. Over E wall bright spot resembled a violet mist. Crater itself was hazy; could not get sharp focus.

Bartlett

Bartlett 1967

1955 Oct 4, 04h55m

Aristarchus

Pale violet tint; E wall bright spot and whole length of E rim; dark violet in nimbus

Bartlett

Bartlett 1967

1955 Oct 4

Aristarchus

Spectrum enhanced in H and K region

Kozyrev

Kozyrev 1957

1955 Oct 5, 03h44m

Aristarchus

Intensely bright blue-violet glare; E wall bright spot, E, NE wall

Bartlett

Bartlett 1967

1955 Oct 31, 00h40m

Aristarchus

Bright blue-violet glare, E, NE rim; dark violet hue in nimbus; pale violet radiance over plateau

Bartlett

Bartlett 1967

1955 Oct 31, 04h50m

Aristarchus

Intense blue-violet glare, E, NE rim. Dark violet in nimbus; pale violet on plateau

Bartlett

Bartlett 1967

1955 Oct 31, 19h00m

Cobrahead

Dark blue obscuration

Milligan

Contrib. by Moore

1955 Nov 1, 03h18m

Aristarchus

Pale violet tint; E wall bright spot, E, NE rim, dark violet hue in nimbus

Bartlett

Bartlett 1967

1955 Nov 6, 05h50m

Aristarchus

Strong blue-violet glare, E, NE wall. Dark violet hue in nimbus

Bartlett

Bartlett 1967

1955 Nov 27, 02h48m

Aristarchus

Floor; blue clay color

Bartlett

Bartlett 1967

1955

Plato

N/A

Sytinskaya

Azevado 1962

1955

Aristarchus

N/A

Sytinskaya

Azevado 1962

1955

Tycho

N/A

Sytinskaya

Azevado 1962

1956 Jan 24

W edge of Cavendish; ~10 min

Variable point of light

Houghton, Warner

Strol. Astr. 1955

1956 Jan 27, 01h18m

Aristarchus

Violet glare whole length of E wall and around E wall bright spot; violet tint N and NE of crater

Bartlett

Bartlett 1967

1956 Jan 28, 02h33m

Aristarchus

Pale violet radiance; E, NE rim

Bartlett

Bartlett 1967

1956 Mar 14, 19h00m

N/A

Twilight at S cusp traced 400 mi. beyond cusp. No trace of twilight at N pole. 6 1/2 inch reflector used. Moon 2 1/2 days old

Firsoff

J.B.A.A. 1956

1956 Mar 18

N/A

Anomalous dimming of Tau and 105 Tau before occultation

Firsoff

J.B.A.A. 1956

1956 Jun 20, 03h39m

Aristarchus

Blue glare, base inner W wall

Bartlett

Bartlett 1967

1956 Jun 26, 07h42m

Aristarchus

Intense blue-violet glare; on E wall bright spot. Dark violet in nimbus

Bartlett

Bartlett 1967

1956 Jun 28, 05h35m

Aristarchus

Intense blue-violet glare, E wall bright spot. Dark violet, nimbus. Pale violet N and NE of crater and on plateau

Bartlett

Bartlett 1967

1956 Jun 29, 06h10m

Aristarchus

Faint, blue-violet tint; E wall bright spot

Bartlett

Bartlett 1967

1956 Jun 30, 06h55m

Aristarchus

Vivid blue-violet glare; E wall bright spot, E, NE wall

Bartlett

Bartlett 1967

1956 Jul 28, 05h40m

Aristarchus

Vivid blue-violet glare on central peak, band across E floor to E wall bright spot; on E wall bright spot and E, NE wall. Absent by 07h20m.

Bartlett

Bartlett 1967

1956 Oct 16, 02h34m

Aristarchus

Blue glare, base inner W wall

Bartlett

Bartlett 1967

1956 Oct 20, 00h45m

Aristarchus

Bright blue-violet glare on E wall bright spot, E, NE rim. Dark violet in nimbus

Bartlett

Bartlett 1967

1956 Oct 26

Alphonsus

A suspected partial obscuration of the floor based on differences in detail in infrared and ultraviolet photographs

Alter

Alter 1956, 1959

1956 Nov 15, 01h17m

Aristarchus

Faint blue radiance, base inner W wall

Bartlett

Bartlett 1967

1956 Nov 16, 03h33m

Aristarchus

Floor; bright bluish tint E of central peak; blue-gray W of central peak

Bartlett

Bartlett 1967

1956 Nov 17-18

Aristarchus, Tycho, Kepler, Proclus, Manilius, Byrgius

Extraordinarily bright

Argentiere, et al

Azevado 1962

1956

Tycho

N/A

Dubois

Azevado 1962

1956

Mare Humorum

N/A

Vigroux

Azevado 1962

1957 Mar 17, 06h24m

Aristarchus

Strong violet glare; E wall bright spot and whole length of E wall. Dark violet in nimbus; pale violet on plateau

Bartlett

Bartlett 1967

1957 Mar 18, 06h43m

Aristarchus

Strong violet glare; E wall bright spot, E wall. Very strong violet hue in nimbus

Bartlett

Bartlett 1967

1957 Jun 11, 04h48m

Aristarchus

Floor; uniform bluish radiance

Bartlett

Bartlett 1967

1957 Jul 11, 05h40m

Aristarchus

Pale violet radiance in crater and on plateau

Bartlett

Bartlett 1967

1957 Aug 18, 06h58m

Aristarchus

Pale blue tint on all walls; floor dazzling white

Bartlett

Bartlett 1967

1957 Oct 11, 03h15m

Aristarchus

Bright blue-violet; E wall bright spot, E, NE rim. Dark violet in nimbus

Bartlett

Bartlett 1967

1957 Oct 12, 02h40m

Aristarchus

Bright blue-violet glare; E wall bright spot, E, NE, N, NW walls. Dark violet nimbus

Bartlett

Bartlett 1967

1957 Oct 12

Aristarchus; 1 hr

Bright flash; then brownish eccentric patch

Dachille and daughter

Cameron 1965

1957 Oct 13, 04h00m

Aristarchus

Weak violet glare; whole length of E wall

Bartlett

Bartlett 1967

1957 Oct 13

In or near Aristarchus

Bright spot of light ("explosion")

Haas

Haas 1957

1957 Oct 15, 05h45m

Aristarchus

Strong blue-violet glare, whole length of E wall

Bartlett

Bartlett 1967

1957 Oct 16, 06h00m

Aristarchus

Faint blue-gray tint; N, NW, W floor and walls

Bartlett

Bartlett 1967

1958 May 1, 03h00m

Aristarchus

Entire sunlit area of floor, bluish

Bartlett

Bartlett 1967

1958 May 4, 06h28m

Aristarchus

Blue-violet glare S side of E wall bright spot; dark violet in nimbus; pale violet on plateau

Bartlett

Bartlett 1967

1958 May 31, 03h40m

Aristarchus

Pale blue-gray floor; violet band E base of central peak

Bartlett

Bartlett 1967

1958 Jun 29, 04h04m

Aristarchus

Floor; very pale bluish tint

Bartlett

Bartlett 1967

1958 Jul 2, 06h29m

Aristarchus

Strong violet glare whole length of E wall, involving E wall bright spot; dark violet, nimbus

Bartlett

Bartlett 1967

1958 Jul 3, 07h06m

Aristarchus

Bright blue-violet glare; E, NE rim. Dark violet, nimbus; pale violet, plateau

Bartlett

Bartlett 1967

1958 Aug 2, 06h15m

Aristarchus

Strong violet glare; E wall bright spot, NE wall. Dark violet, nimbus. Strong violet, plateau

Bartlett

Bartlett 1967

1958 Sep 1, 07h27m

Aristarchus

Whole crater filled with pale violet radiance, especially bright on walls. Pale violet N and NE of crater and on plateau

Bartlett

Bartlett 1967

1958 Sep 23

Piton

Became enveloped in an obscuring cloud-like mist

Moore

Moore obs. book

1958 Oct 16

N of Mare Crisium

Bright spot in dark area of moon

Mayemson

Mayemson 1965

1958 Nov 3, 03h00m

Alphonsus

Reddish glow, followed by effusion of gas

Kozyrev

Kozyrev 1959, 1963; Green 1965

1958 Nov 19, 04h00m - 04h30m

Alphonsus; 30 min

Diffuse cloud over central mountain

Poppendiek, Bond

Alter 1959; Poppendiek and Bond 1959

1958 Nov 19, 22h05m

Alpetragius

Portion of shadow in crater vanished

Stein

Stein 1959

1958 Nov 19

Alphonsus

Reddish patch close to central peak

Wilkins, Hole

Wilkins 1959; Hole 1959; Moore 1965

1958 Nov 22

Alphonsus

Gray spot

Bartha

Moore 1965

1958 Dec 19

Alphonsus

Reddish patch close to central peak

Wilkins, Hole

Wilkins 1959; Hole 1959; Moore 1965

1959 Jan 22

Aristarchus

Interior, light brilliant blue, later turning white

Alter

Alter NASA report

1959 Jan 23

Aristarchus

Brilliant blue interior

Alter

Cameron 1965

1959 Feb 18

Alphonsus

Red patch

Hole

Moore 1965

1959 Mar 24, 02h33m and 04h55m

Aristarchus

Strong blue and blue-violet glares; E wall, E wall bright spot, S wall bright spot; intermittent display. Observation at 04h55m of same phenomenon

Bartlett

Bartlett 1967

1959 Mar 25, 05h24m

Aristarchus

Intense blue-violet glare on whole length of E rim and on E wall bright spot; dark violet hue in nimbus

Bartlett

Bartlett 1967

1959 Apr 19

W of Mare Humorum

Bright point to W of mare

McFarlane

Strol. Astr. 1959

1959 Sep 5

Aristarchus

Irregular, intermittent starlike point of light, 8th to 9th mag, appeared within bright area. No color seen

Rule

Rule 1959

1959 Sep 13

Littrow

Obliterated by a hovering cloud (Feist disagrees with Bradford)

Bradford

Contrib. by Moore

1959 Oct 23

Alphonsus

Red glow seen. Spectrum showed unusual features

Kozyrev

Kozyrev 1962

1960 Jan 6

Alphonsus

Red spot

Warner

J. Int. Lunar Soc. 1960

1960 Nov

Piton; ~30 min

Red obscuration concealing peak

Schneller

Cameron 1965

1960 Dec

Piton

Red obscuration less intense than in November

Schneller

Cameron 1965

1961 Jan

Piton

Red obscuration less intense than in November

Schneller

Cameron 1965

1961 Feb 15, ~08h11m

Aristarchus, Plato

Seen as bright features during solar eclipse (on film of eclipse shown by BBC May 6, 1966)

Sartory, Middlehurst

Contrib. by Middlehurst

1961 May 30-31

Aristarchus

Enhancement of spectrum in UV

Grainger, Ring

Grainger and Ring 1963

1961 Jun 27-28

Aristarchus, ray near Bessel

Enhancement of spectrum in UV

Grainger, Ring

Grainger and Ring 1963

1961 Jun 29-30

E of Plato

Enhancement of spectrum in UV

Grainger, Ring

Grainger and Ring 1963

1961 Oct 18

Eratosthenes

Bright spot in crater

Bartlett

Strol. Astr. 1962

1961 Nov 26

Aristarchus region

Red glow seen. Anomalous spectra in red and blue

Kozyrev

Kozyrev 1963

1961 Nov 28

Aristarchus region

Red glow seen. Anomalous spectra in red and blue

Kozyrev

Kozyrev 1963

1961 Dec 3

Aristarchus region

Red glow seen. Anomalous spectra in red and blue

Kozyrev

Kozyrev 1963

1962 Sep 5

Region of Walter near terminator; 7 min

Faint point of light

Chalk

Cameron 1965

1962 Sep 16

"Whole moon"

Spectrum showed UV emission, particularly in region of H and K lines by comparison with spectra of Sun, Mars and Jupiter

Spinrad

Spinrad 1964

1962 Oct 8

Aristarchus; ~1 hr

Activity

Adams

Cameron 1965

1963 Oct 5

Aristarchus region

Enhancement of 30 percent at 5450 A

Scarfe

Scarfe 1965

1963 Oct 30

Aristarchus region

Color changes; reddish-orange to ruby patches

Greenacre, Barr

Greenacre 1963

1963 Oct 30

Cobrahead; 7 min

Brightened area, 7th to 11th mag

Budine, Farrell

Cameron 1965

1963 Nov 1, 23h00m

Near Kepler; 20 min

Enhancement of large area in red light

Kopal, Rackham

Kopal and Rackham 1964a, 1964b

1963 Nov 11

Aristarchus

Color changes

Jacobs

Shorthill 1963; Gree 1965, p.409

1963 Nov 28

Aristarchus, Schroter's Valley; 1 hr 15 min

Red spots, then violet, blue haze

Greenacre, et al

Greenacre 1963

1963 Nov 28

Cobrahead; 35 min

Pink spot on W side

Tombaugh

Cameron 1965

1963 Nov 28

Aristarchus, Anaximander; ~1 hr

Red spot in Aristarchus and also on N edge of Anaximander

W. Fisher

Cameron 1965

1963 Dec 28, 15h55m - 16h26m

Aristarchus to Herodotus; 31 min

Extensive red area

9 students at Hiroshima, Japan

Sato 1964

1963 Dec 29-30, 22h00m - 03h00m

Aristarchus region; 5 hr

Purplish-blue patch

Doherty and others

Contrib. by Moore

1963 Dec 30, ~11h00m

NE limb; ~20 min

During eclipse, anomalous reddish glow inside umbra (Lunar eclipse)

Many observers

Sky and Tel. 1964

1964 Feb 25

Cobrahead; 3 min, Aristarchus; 1 min

Red flashes, + 12 mag

Budine

Cameron 1965

1964 Mar 16

Aristarchus

Sudden red glow on SW rim

Lecuona

Cameron 1965

1964 Mar 18

Aristarchus

Flash

Earl and brother

Cameron 1965

1964 Mar 26, 00h37m

Aristarchus

Floor; blue clay color

Bartlett

Bartlett, 1967

1964 Mar 28, 01h59m

Aristarchus

Blue-violet glare, E wall and N wall; E wall bright spot; violet tinge in nimbus

Bartlett

Bartlett 1967

1964 Apr 22

Near Ross D

Bright spot

Cross and others

Harris 1967

1964 Apr 26

Region of Censorinus

Surface brightening somewhat similar to Kopal-Rackham (1963 Nov 1) event

Hopmann

Hopmann 1966

1964 May 17

Theophilus

Crimson color on W rim, ~10 mag

Dieke

Cameron 1965

1964 May 18, 03h55m - 05h00m

SE of Ross D; 1 hr 5 min

White obscuration moved 20 mph, decreased in extent. Phenomenon repeated. Newtonians 8" f/7 and 9" f/7 used

Harris, Cross and others

Cameron 1965; Harris 1967

1964 May 20

Plato; ~10 min

Strong orange-red color on W rim of crater, + 10 mag

Bartlett

Bartlett 1967

1964 May 26, 04h22m

Aristarchus

Strong blue-violet glare, E wall and E wall bright spot; strong violet tinge in nimbus

Bartlett

Bartlett 1967

1964 May 28, 05h38m

Aristarchus

Blue-violet glare; E wall bright spot, E, NE walls. Dark violet, nimbus

Bartlett

Bartlett 1967

1964 Jun 6

Aristarchus area; 50 min

Spur between Aristarchus and Herodotus; red spots (glow) in Schroter's Valley

Schmidling, St.Clair, Platt

Cameron 1965

1964 Jun 17

SE of Ross D

Moving bright spot; 2 brief obscurations of part of wall. Newtonian, 19" f/7

Cross, Harris

Harris 1967

1964 Jun 20, 06h00m

Aristarchus

Nimbus only; dark violet hue

Bartlett

Bartlett 1967

1964 Jun 21, 03h43m - 05h44m

S of Ross D; 2 hr, 1 min

Moving dark area. Newtonian 19" f/7

Harris, Cross, Helland

Harris 1967

1964 Jun 23, 04h55m

Aristarchus

Blue-violet glare, NE rim; strong violet tinge in nimbus

Bartlett

Bartlett 1967

1964 Jun 25, ~01h07m

Aristarchus

Very bright during eclipse (direct photograph, lunar eclipse)

Titulaer

Hemel en Dampkring 1967

1964 Jun 25, 01h07m

Grimaldi

During lunar eclipse, white streak from Grimaldi toward limb

Azevado

Letter to Moore

1964 Jun 26, 05h24m

Aristarchus

Dark violet in nimbus; pale violet on plateau. Absent from crater

Bartlett

Bartlett 1967

1964 Jun 27, 05h48m

Aristarchus

Bright blue-violet; E wall bright spot, E, NE rim. Dark violet in nimbus

Bartlett

Bartlett 1967

1964 Jun 28, 06h44m

Aristarchus

Blue-violet glare; E wall bright spot, E, NE, N, NW walls

Bartlett

Bartlett 1967

1964 Jun 28

S region of Aristarchus

Reddish-brown tone observed

Bartlett

Greenacre 1965

1964 Jul 16

SE of Ross D

Temporary "hill," est 3 km diam and shadow seen

Cragg

Harris 1967

1964 Jul 17

Plato

Faint pink bands at base of inner W wall and on rim of N wall

Bartlett

Greenacre 1965

1964 Jul 18

SE of Ross D

Bright area moved and shrank. Extent greater with amber filter

Harris

Cameron 1965; Harris 1967

1964 Jul 18

Plato; some minutes

Pink tinge to W wall, 10th mag

Bartlett

Cameron 1965

1964 Jul 28, 04h43m

Aristarchus

Blue-violet glare; E wall bright spot. Dark violet in nimbus; pale violet on plateau

Bartlett

Bartlett 1967

1964 Jul 29, 05h50m

Aristarchus

Nimbus only; dark violet hue

Bartlett

Bartlett 1967

1964 Jul 31, 05h28m

Aristarchus

Pale blue tint; NE, N, NW walls and floor

Bartlett

Bartlett 1967

1964 Aug 16, 04h18m - 05h20m

SE of Ross D; 1 hr, 2 min

Bright area. Condensations varying with time

Harris, Cross

Harris 1967

1964 Aug 24, 04h22m

Aristarchus

Bright blue-violet; E wall bright spot, E, NE wall

Bartlett

Bartlett 1967

1964 Aug 25, 04h58m

Aristarchus

Bright blue-violet; E wall bright spot, E, NE rim. Dark violet in nimbus

Bartlett

Bartlett 1967

1964 Aug 26, 04h16m

Aristarchus

Blue-violet glare; E wall bright spot, E, NE rim. Dark violet hue in nimbus

Bartlett

Bartlett 1967

1964 Aug 26

Aristarchus; ~1 hr

Red and blue bands

Gennatt, Reid

Cameron 1965

1964 Aug 27, 04h37m

Aristarchus

Blue-violet glare; E wall bright spot, E, NE wall. Dark violet, nimbus; pale violet on plateau

Bartlett

Bartlett 1967

1964 Aug 28, 04h40m

Aristarchus

Faint blue-violet radiance, E wall bright spot and NE rim. Dark violet in nimbus

Bartlett

Bartlett 1967

1964 Sep 18, 01h15m

Aristarchus

Craterlet, base NW wall; bluish

Bartlett

Bartlett 1967

1964 Sep 20

Aristarchus to Herodotus

Several red spots in area

Crowe, Cross

Cameron 1965

1964 Sep 20

SE of Ross D

Bright obscuration

Cross

Cameron 1965; Harris 1967

1964 Sep 22, 03h03m

Aristarchus

Bright blue-violet glare; E wall bright spot and NE rim. Dark violet in nimbus

Bartlett

Bartlett 1967

1964 Sep 22

Kunowsky; 1 hr

Red area blinked in blinker

Gillheaney, Hall, L.Johnson

Cameron 1965

1964 Sep 23, 03h30m

Aristarchus

Blue-violet flare [glare?]; E wall bright spot, E, NE, N, NW wall

Bartlett

Bartlett 1967

1964 Sep 25, 04h05m

Aristarchus

Blue-violet glare; E wall bright spot. Dark violet on nimbus

Bartlett

Bartlett 1967

1964 Sep 25, 04h43m

Aristarchus

Blue-violet glare; E wall bright spot. Dark violet in nimbus; pale violet on plateau

Bartlett

Bartlett 1967

1964 Sep 26, 05h07m

Aristarchus

Moderately intense; E wall bright spot. Dark violet, nimbus

Bartlett

Bartlett 1967

1964 Oct 19, 02h02m

Aristarchus

Strong blue tint E half of floor; blue-violet glare, base E side central peak

Bartlett

Bartlett 1967

1964 Oct 22, 02h12m

Aristarchus

Blue-violet glare, E wall bright spot, E, NE wall. Dark violet hue in nimbus

Bartlett

Bartlett 1967

1964 Oct 24, 04h02m

Aristarchus

Blue-violet glare; E wall bright spot, E, NE rim Dark violet hue in nimbus

Bartlett

Bartlett 1967

1964 Oct 25, 04h17m

Aristarchus

Nimbus only; dark violet hue

Bartlett

Bartlett 1967

1964 Oct 25, 04h37m

Aristarchus

Blue-violet glare; E wall bright spot, E, NE wall. Faint violet tinge in nimbus

Bartlett

Bartlett 1967

1964 Oct 27

Alphonsus

Reddish-pink patch at base of sunlit central peak

L.Johnson, et al

Cameron 1965

1964 Nov 14

Plato

Peak on W wall very brilliant white. At foot of peak on inner side, strong blue band. Immediately adjacent, on SE was a small, bright red spot

Bartlett

Greenacre 1965

1964 Nov 21, 01h57m

Aristarchus

Bright blue-violet glare; NE, N, and NW rims

Bartlett

Bartlett 1967

1964 Nov 23, 03h29m

Aristarchus

Strong blue-violet glare; N, NE, NW walls. Dark violet, nimbus

Bartlett

Bartlett 1967

1964 Nov 24, 04h50m

Aristarchus

Blue-violet glare, N rim. Dark violet in nimbus; pale violet N and NE of crater

Bartlett

Bartlett 1967

1964 Dec 19

Aristarchus; 1 min

Brightened by a factor of 5

Budine, Farrell

Cameron 1965

1964 Dec 19, ~02h35m

N/A

Anomalous bright area during lunar eclipse

S. Hill and student

Hill 1966

1964 Dec 19, ~02h35m

Edge of Mare Nubium

Photoelectric photometry showed strong anomalous enhancement of radiation during lunar eclipse

Sanduleak, Stock

Sanduleak and Stock 1965

1965 Mar 14, 07h40m

SE of Ross D

Crater wall partially obscured. Bright area. Cassegrain 12", f/15

Cross

Harris 1967

1965 Jul 1

Aristarchus, dark side

Starlike image

Emanuel

Cameron 1965

1965 Jul 2

Aristarchus; 1 hr 21 min

Bright spot like star on dark side, estimated mag 4

Emanuel, et al

Greenacre 1965

1965 Jul 3

Aristarchus; ~1 hr 10 min

Pulsating spot on dark side

Emanuel, et al

Greenacre 1965

1965 Jul 4

Aristarchus; 1 hr

Bright spot, no pulsations, on dark side

Emanuel, et al

Greenacre 1965

1965 Jul 7

Grimaldi

White streak extended toward limb

Azevado, et al

Revista Astr. 1965

1965 Jul 8

Theophilus; 10 min

Bright spot

Cross

Cameron 1965; Greenacre 1965

1965 Jul 9

Aristarchus; 2 hr 6 min

Starlike image

Emanuel

Cameron 1965

1965 Jul 31

Aristarchus

Starlike image

Welch

Cameron 1965

1965 Aug 2

Aristarchus; ~1 min

Starlike brightening, 8th to 9th mag

Bornhurst

Cameron 1965

1965 Aug 3

Aristarchus; ~6 min

Starlike image, 6th to 7th mag

Bornhurst

Cameron 1965

1965 Aug 4

Aristarchus; ~2 min

Starlike image, 6th to 7th mag

Bornhurst

Cameron 1965

1965 Sep 3

SE of Ross D

Ridge obscured

Harris

Harris 1967

1965 Sep 9, 13h20m

Aristarchus

Orange-red strip on floor

Presson

Contrib. by Moore

1965 Oct 10, 06h07m

Aristarchus

Pale violet radiance; whole of W interior; dark violet, nimbus; pale violet on plateau

Bartlett

Bartlett 1967

1965 Oct 11, 01h47m

Aristarchus

Whole crater, exclusive of S area, pale violet; dark violet in nimbus; pale violet on plateau

Bartlett

Bartlett 1967

1965 Oct 12, 02h20m

Aristarchus

Nimbus only; dark violet hue

Bartlett

Bartlett 1967

1965 Oct 13, 03h02m

Aristarchus

Pale, blue-violet tint on E wall bright spot and whole length of E wall; pale violet radiance in crater, exclusive of S region. Dark violet, nimbus

Bartlett

Bartlett 1967

1965 Nov 15

Aristarchus

Bright spots

L.Johnson

Phys. Today 1966

1965 Dec 1

N/A

Reddish glow followed by black obscuration

Evrard and others

Gingerich 1966

1965 Dec 4, 04h25m

Ross D

Obscuration of part of rim, also bright area 7-10 km diameter, not seen on following night (04h00m - 07h30m)

Cross (Harris, Cragg on Dec 5)

Harris 1967

1966 Feb 7, 01h10m

Aristarchus

Nimbus only; intense violet hue

Bartlett

Bartlett 1967

1966 Mar 29, 21h00m

Archimedes

Floor bands brilliant

E.G. Hill

B.A.A. Lunar Sec. Circ. 1966, 1, No.6

1966 Apr 2, 23h30m

Aristarchus; 20 min

Central peak very bright

M. Brown

B.A.A. Lunar Sec. Circ. 1966, 1, No.7

1966 Apr 3, 23h00m

Aristarchus; 30 min

Central peak very bright

M. Brown

B.A.A. Lunar Sec. Circ. 1967, 1, No.7

1966 Apr 12, 01h05m

Gassendi; 18 min

Abrupt flash of red settling immediately to point of red haze near NW wall. Continuous until 01h23m

Whippey

B.A.A. Lunar Sec. Circ. 1967, 2, No.5

1966 Apr 30 - May 2

Gassendi

Red glows

Sartory, Moore, Moseley, Ringsdore

J.B.A.A. 1966; B.A.A. Lunar Sec. Circ. 1966, 1, No.6

1966 May 1, 21h55m - 22h45m

Aristarchus; 50 min

Red patch

Patterson

B.A.A. Lunar Sec. Circ. 1966, 1, No.6

1966 May 1, 22h10m

Aristarchus; 15 min

Small intense white spot NW of crater wall

M. Brown, Sartory

B.A.A. Lunar Sec. Circ. 1966, 1, Nos.6, 7

1966 May 27, 21h10m

Alphonsus; 50 min

Faint red patches

Sartory, Moore, Moseley

B.A.A. Lunar Sec. Circ. 1966, 1, No.6

1966 May 30, 20h52m

Gassendi; 7 min

Blink, orange patch and obscuration

Sartory

B.A.A. Lunar Sec. Circ. 1966, 1, No.6

1966 Jun 1, 03h20m

Aristarchus

Entire sunlit area of floor, bluish

Bartlett

Bartlett 1967

1966 Jun 3, 06h10m

Aristarchus

Nimbus only, violet hue

Bartlett

Bartlett 1967

1966 Jun 26, 04h30m - 04h40m

Alphonsus; 10 min

Absorption band (4880 +- 50A) seen in spectrum of central peak

Harris, Arriola

Harris 1967

1966 Jun 27

Plato; 15 min

Inside SW wall of crater, blink

Hedley Robinson, Sartory

B.A.A. Lunar Sec. Circ. 1966, 1, No.11

1966 Jul 10, 02h00m

Triesnecker; 1 hr

Bright streak in crater

Allen

B.A.A. Lunar Sec. Circ. 1966, 1, No.10

1966 Aug 4-5, 22h37m - 23h30m
and 02h32m - 02h58m

Plato; 53 min, 26 min

Red color, NE wall and floor

Corvan, Moseley

B.A.A. Lunar Sec. Circ. 1966, 1, No.10

1966 Sep 2, 00h00m

Gassendi; 3 hr

Reddish patches

Moore, et al (8 observers)

B.A.A. Lunar Sec. Circ. 1966, 1, No.10; ibid 1966, 1, No.11

1966 Sep 2

Alphonsus; intermittent, 1 hr 2 min

A series of weak glows; Final flash observed at 04h18m

Whippey

B.A.A. Lunar Sec. Circ. 1966, 2, No.12

1966 Sep 3, 03h55m

Gassendi

Moseley

B.A.A. Lunar Sec. Circ. 1966, 1, No.10

1966 Sep 25, 20h20m

Gassendi; 30 min

Reddish patches

Moore, Moseley

B.A.A. Lunar Sec. Circ. 1966, 1, No.11

1966 Sep 25, 23h12m

Plato; 3 min

Blinks in crater

Moseley

B.A.A. Lunar Sec. Circ. 1966, 1, No.11

1966 Ot 25, 03h46m

SE of Ross D

Large bright area obscuring half of crater wall. Not present Oct 24. Newtonian 19" f/7

Cross

Harris 1967

1966 Oct 25, 22h30m

Gassendi

Red blinks, N wall

Moore, Moseley, Sartory

B.A.A. Lunar Sec. Circ. 1966, 2, No.1

1966 Oct 29, 00h45m - 01h30m

Copernicus, N rim; 45 min

Red spot

Walker

Walker 1966

1966 Dec 22, 06h00m - 06h30m

Messier (W.H. Pickering); 30 min

Blinks on floors of both craters

Kelsey

B.A.A. Lunar Sec. Circ. 1967, 2, No.4

1966 Dec 23, 05h15m - 07h10m

Plato; 55 min

Numerous light streaks on floor, three bright spots on floor, all showed blinks

Kelsey

B.A.A. Lunar Sec. Circ. 1967, 2, No.4

1966 Dec 27, 06h30m - 07h05m

Gassendi; 35 min

Very faint blink on SW floor and another N of it on NW floor (observer considers observation very suspect)

Kelsey

B.A.A. Lunar Sec. Circ. 1967, 2, No.4

1967 Jan 21, 19h35m

Gassendi

Small blink and suspect faint colored patch in outer W wall in position of original observation of 1966 Apr 30

Sartory, Moore, Moseley, Duckworth, Kilburn

B.A.A. Lunar Sec. Circ. 1967, 2, No.3; ibid 1967, 2, No.4

1967 Feb 17, 17h47m - 18h12m

Alphonsus; 25 min

Blink just inside the SW floor of crater suspected on elevation NW of dark patch

Moore, Moseley

B.A.A. Lunar Sec. Circ. 1967, 2, No.4

1967 Feb 19, 20h30m - 20h40m

Alphonsus; 10 min

Bright red glow in position of suspected blink of 1967 Feb 17. Fading by 20h37m

Moseley, Moore

B.A.A. Lunar Sec. Circ. 1967, 2, No.4

1967 Mar 22, 19h40m

Gassendi

Red color and blink

Moseley

B.A.A. Lunar Sec. Circ. 1967, 2, No.5

1967 Mar 23, 18h40m

Gassendi

Red color under S wall

Sartory, Farrant

B.A.A. Lunar Sec. Circ. 1967, 2, No.5

1967 Mar 23, 19h45m

Cobrahead

Red color outside SE wall

Moore, Moseley, Farrant

B.A.A. Lunar Sec. Circ. 1967, 2, No.6

1967 Mar 23, 19h05m - 19h55m

Aristarchus

Red glows

Sartory, Moore, Moseley

B.A.A. Lunar Sec. Circ. 1967, 2, No.5, 6

1967 Apr 15, 19h15m - 21h00m

Aristarchus (on dark side); 1 hr 45 min

Aristarchus very bright. Seeing very good until 21h00m UT, after which seeing too bad to continue observing. On April 16 and 17 nothing special was to be seen.

Classen

Hopmann 1967

1967 Apr 21, 19h16m - 21h15m

Aristarchus; 1 hr 59 min

Bright points on S wall. Red patch to NE

Darnell, Farrant

B.A.A. Lunar Sec. Circ. 1967, 2, No.7

1967 Apr 21, 21h20m

Schroter's Valley, Cobrahead

Red color

Darnell, Farrant

B.A.A. Lunar Sec. Circ. 1967, 2, No.7

1967 Apr 22

Aristarchus (on bright side)

Aristarchus so bright that it could be seen with the naked eye

Classen

Hopmann 1967

1967 May 20, 20h15m
and 21h05m - 21h20m

Aristarchus; 15 min

Red spots on south rim. Moon low

Darnell

B.A.A. Lunar Sec. Circ. 1967, 2, No.8

1967 May 20

Gassendi

Elongated blink in crater, SW part of floor

Kelsey

B.A.A. Lunar Sec. Circ. 1967, 2, No.8

1967 May 29, 06h40m - 07h25m

Aristarchus; 45 min

Red-brown color

C.A. Anderson

B.A.A. Lunar Sec. Circ. 1967, 2, No.8

1967 Jun 18, 21h10m - 22h30m
and 22h50m - 23h59m

Gassendi; 1 hr 20 min and 1 hr 9 min

Faint redness outside the NW and SW wall of Gassendi

Whippey

B.A.A. Lunar Sec. Circ. 1967, 2, No.8

1967 Aug 13, 21h00m

Alphonsus; 15 min

Glow in interior of crater

Horowitz

B.A.A. Lunar Sec. Circ. 1967, 2, No.10

1967 Sep 11, 00h32m

Mare Tranquilitaties; 8-9 sec

Black cloud surrounded by violet color

Montreal group

B.A.A. Lunar Sec. Circ. 1967, 2, No.12

1967 Sep 11, 00h45m

Sabine

Bright yellow flash visible a fraction of a second

Mrs P.Jean and Montreal group

B.A.A. Lunar Sec. Circ. 1967, 2, No.12

1967 Sep 17, 02h05m

Aristarchus

Red color observed

Delano

Kelsey 1967

1967 Oct 10, 02h15m

SE of Ross D

Bright area moved 80 km/hr toward SSE and expanded as contrast reduced

Harris

Harris 1967

1967 Oct 19, 05h00m

Kepler, Aristarchus

High moon, 19 after full, apogee. Kepler appeared at least one mag brighter than Aristarchus. On Oct 20 and 22 at 05h UT, relative brightness returned to normal

Classen

Classen 1967