TLP Repeat Illumination/Libration and Earthshine predictions for: Greenland - Nuuk



Ill is percentage illumination of the Moon
*Indicates a repeat illumination and libration event to within +/- 1 deg for both
A non-* indicates just repeat illumination to within +/-0.5 deg


2019-Aug-04 UT 00:15-00:22 Ill=12% Aristarchus observed by Albert on 1965-7-2 *

     In 1965 Jul 02 at UT 04:20-05:50 Albert and Welch (Azuss, CA, USA, 8" 
     reflector, x375) and Emanuel  (West Covina, CA, USA, 4.5" reflector) 
     observed 4th magnitude star-like flashes to blotches in Aristarchus, in 
     ashen light. Cameron says that this is independent confirmation and 
     also that the date in MBMW is 7/1/65 which is local time + 2nd UT. The 
     Cameron 1978 catalog ID=881 and weight=3. The ALPO/BAA weight=3.


2019-Aug-05 UT 00:11-00:28 Ill=21% Aristarchus observed by Emanuel on 1965-7-3 *

     In 1965 Jul 03 at UT 04:25-05:34 Emanuel (West Covina, CA, USA, 4.5" 
     reflector) observed 4th magnitude star-like flashes and pulsations 
     coming from Aristarchus. Cameron says this confirmed and that the date 
     in MBMW is 7/2/65 which is local time = 3rd UT. The Cameron 1978 
     catalog ID=882 and weight=3. The ALPO/BAA weight=3.


2019-Aug-06 UT 00:08-00:30 Ill=31% Aristarchus observed by Gridley on 1965-7-4 *

     In 1965 Jul 04 at UT 03:53-05:59 Gridley, Welch (West Covina, CA, USA, 
     4.5" and 8" reflector, seeing=excellent), Albert (CA, 8" reflector, 
     x375) and Emanuel (8" reflector) observed star-like flashes in 
     Aristarchus crater. Cameron says this confirmed and that the date 
     in MBMW is 7/3/65 which is local time = 4th UT also but is in error due 
     to misreading of handwriting. The Cameron 1978 catalog ID=883 and 
     weight=3. The ALPO/BAA weight=3.


2019-Aug-16 UT 01:38-02:58 Ill=100% Plato observed by Mount_AW on 1944-9-3 *

     Plato 1944 Sep 03 UTC 03:40 - A.W. Mount (Fort Worth, TX, USA, 
     Conditions good, seeing 6/10) saw a small white bright point of 
     light appear suddenly close to the W. wall of Plato glowed 
     briefly as by far the most conspicuous object in the lunar field 
     of view and vanished quickly after approximately 2 sec. It was 
     star-like in appearance and was stationary on the Moon's surface 
     - about magnitude 6? Angular diameter of the flash was <= 1". 
     Observing conditions good enough to see the central craterlet in 
     Plato. 20cm reflector used. Ref. DJALPO Vol 45, p28 Spring 2003.


2019-Aug-16 UT 03:34-05:31 Ill=100% Kepler observed by Manchester_University on 1963-11-2 *

     On 1963 Nov 01 at UT 00:20-00:35 Kopal and Rackham (Pic du 
     Midi, France, 24" reflector) observed in Kepler an 
     enhancement in red light at 672.5nm and 545.0nm. Luminescence 
     ~86% +/-3% of background. The Cameron catalog says that Moore 
     saw something between 23:30 and 03:00, but it is not clear 
     what exactly, or whether it was Copernicus, Kepler, or 
     Aristarchus? The Cameron 1978 catalog ID=779 and weight=5. 
     The ALPO/BAA weight=5.


2019-Aug-16 UT 04:06-05:11 Ill=100% Unknown observed by Scarfe on 1963-11-2 *

     On 1963 Nov 02 at UT 00:00? Scarfe (Cambridge, UK) observed a spectral 
     line dpeth anomaly? The cameron 1978 catalog ID=780 and weight=5. The 
     ALPO/BAA weight=4.


2019-Aug-16 UT 04:13-04:41 Ill=100% Copernicus observed by Moore_P on 1963-11-1 *

     On 1963 Nov 01/12 at UT 22:30-03:00 P. Moore (UK, 12" reflector) 
     observed something unusual in Aristarchus/Copernicus/Kepler - 
     the Cameron catalog is not very clear which. The Cameron 1978 
     catalog ID=779 and weight=5. ALPO/BAA weight=1.


2019-Aug-16 UT 05:14-05:55 Ill=99% Fracastorius observed by Robinson_JH on 1980-9-24 *

     On 1980 Sep 24 at UT21:34 J-J. Robinson (Teighmouth, Devon, UK, 10" 
     reflector, x200, seeing=III) found, using a Moon Blink device, that 
     Fracastorius blinked on the northern side in the red filter. Cameron 
     2006 catalog ID=110 and weight=5. ALPO/BAA weight=3.


2019-Aug-16 UT 05:19-05:34 Ill=99% Plato observed by Moore_P on 1980-9-24 *

     On 1980 Sep 24 at UT 21:13-23:50 P.Moore (Selsey, UK) at 22:45 saw loss 
     of detail in the north west wall, especially in red light, but also 
     slightly in blue light too. By 22:48 there was activity on the crater 
     floor i.e. the four bright spots were visible in white light but not in 
     red. In blue the central spot was seen and there were dark radial 
     streaks to the south wall and south east. At 22:50 there was a loss of 
     detail. Other craters were normal. At 23:08 the floor was dark in red, 
     but some details were visible in blue. the effect had finished by 
     23:35. At21:34 J-H Robinson found Plato to be normal and no blinks, 
     though floor clearer in red than in blue, however the floor detail had 
     gone by 21:57. Blair suspected a dusty patch in north of Plato, 
     especially in red light. at 21:57 and it started spreading at 21:13, 
     then east at 21:15 and then north. Though it faded at 21:25 but was 
     back again at 21:35, and Moon blink colour filters still gave a 
     reaction at 21:50 - the TLP remained strong until 23:50UT. The Cameron 
     2006 catalog ID=110 and weight=5. The ALPO/BAA weight=4.


2019-Aug-18 UT 01:23-02:39 Ill=94% Plato observed by Unknown_Observer on 1959-11-17 *

     On 1959 Nov 17 at Ut 22:00 an unnamed observer saw a light in Plato. 
     The Cameron 1978 catalog ID=725 and weight=1. The ALPO/BAA weight=1.


2019-Aug-19 UT 04:53-05:06 Ill=88% Plato observed by Lihou on 1886-11-14 *

     Plato 1886 Nov 14 UT UT 21:45 Observed by Lihou (France?) "Brilliant 
     band N-S, area marked G in NE was only slightly visible, poorly 
     defined. Drawing (there were rays on the floor)." NASA catalog weight=3 
     (average). NASA catalog ID #253.


2019-Aug-19 UT 05:52-07:38 Ill=88% Grimaldi observed by Firsoff on 1937-4-29

     In 1937 Apr 29 at UT 09:30 Firsoff (Glastonbury, UK, 6" reflector and 
     filters) observed a slight greenish colour (Cameron says colour of 
     ground? no TLP?). The Cameron 1978 catalog ID=420 and Weight=4. The 
     ALPO/BAA weight=3.


2019-Aug-19 UT 06:08-07:36 Ill=88% Plato observed by Gray on 1877-7-29

     Plato 1877 Jul 29 UTC 02:00?-02:30 Observed by Gray (England?) "S. of 
     crater a bright streak that disappeared at 0230" NASA catalog weight=3 
     (average). NASA catalog ID #196.


2019-Aug-20 UT 04:18-07:41 Ill=82% Theophilus observed by Cross on 1965-7-18 *

     Theophilus 1965 Jul 18 UTC 08:52-09:01 Observed by Cross, Ariola 
     (Whittler, CA, USA, 19" reflector, x450, S=4, T=3) "Red spots; 
     ruby red within a pink area on c.p." NASA catalog weight=5. NASA 
     catalog ID #885. ALPO/BAA weight=4.


2019-Aug-20 UT 05:17-07:11 Ill=81% Mons_Piton observed by Brook_C on 1999-1-7

     1999 Jan 07 UT 01:57 C. Brook (Plymouth UK, 65mm refractor, 
     x125, seeing good) found this mountain unusually dull. In 
     contrast, Mons Pico, Montes Teneriffe, Montes Spitzenberg, 
     were all normal. ALPO/BAA weight=1.


2019-Aug-20 UT 06:47-07:41 Ill=81% Plato observed by Gruithuisen_F on 1825-4-8

     Plato 1825 Apr 08 UT 01:00 Observed by Gruithuisen (Munich, 
     Germany) "West part of crater brighter than east part". NASA 
     catalog weight=4. NASA catalog ID #106. ALPO/BAA weight=1.


2019-Aug-20 UT 07:01-07:41 Ill=81% Aristarchus observed by Bartlett on 1971-6-13

     Aristarchus 1971 Jun 13 UT 08:21 Observed by Bartlett (Baltimore, MD, 
     USA, 4" reflector x51, x93, x121) "S. part of floor was brownish & 
     granulated" NASA catalog weight=4 (high). NASA catalog ID #1296.


2019-Aug-21 UT 03:51-04:23 Ill=74% Aristarchus observed by Cameron_W on 1982-10-8

     On 1982 Oct 08 at UT 04:15-04:30 W. Cameron (Silverspring, MD, USA, 
     3.5" reflector, x160, Seeing-very good) suspected blue tinge on north 
     west rim and brown/red on south east rim of Aristarchus crater + focus 
     was slightly difficult. No similar colour effect seen on other craters. 
     Cameron 2006 catalog ID=186 and weight=1. ALPO/BAA weight=1.


2019-Aug-21 UT 03:51-04:23 Ill=74% Clavius observed by Cameron_W on 1982-10-8

     On 1982 Oct 08 at UT 04:15-04:30 W. Cameron (Silverspring, MD, USA, 
     3.5" reflector, x160) found that Clavius had a "D" shaped crater on its 
     outskirts that made it appear to have a ridge crossing through it. 
     Cameron 2006 catalog ID=186 and weight=1. ALPO/BAA weight=1.


2019-Aug-21 UT 03:51-04:14 Ill=74% Plato observed by Darling_D on 1989-4-26

     On 1989 Apr 26 at UT 10:22-10:44 D. Darling (Sun Praire, WI, USA, 3" 
     refractor, x36-x140) found that the eastern half of Plato crater was 
     dark - and he checked this using several eyepieces. moderate 
     magnification resolved the dark region into bands, but too high a 
     magnification (x140) made the bands dissappear. The Cameron 2006 
     catalog ID=362 and the weight=0. The ALPO/BAA weight=1. 


2019-Aug-21 UT 05:47-07:42 Ill=73% Rimae_Triesnecker observed by Markov on 1915-7-3

     Triensecker Rille 1915 Jul 03 UTC 00:00? Observed by Markov (Russia) 
     "Several spots changed their shapes compared with Gordeenko's depiction 
     on 5/23/12 see #339; which cannot be explained by light variations." 
     NASA catalog weight=3. NASA catalog ID #356.


2019-Aug-21 UT 06:32-07:01 Ill=73% Plato observed by Mobberley_M on 1981-10-18

     On 1981 Oct 18 UT 22:14022:16 M.Mobberley (Bury St Edmunds, UK, 
     14" Cassegrain, seeing variable, transparency misty) found that 
     the central craterlet on the floor of Plato was not visible, 
     despite it being visible under similar colongitudes on other 
     nights. Might be due to observing conditions, but observer 
     suspicous. At 02:08 the observer comments that the central 
     craterlet was ellusive, and at 02:42, though it is uncertain 
     whether they regarded it as suspicous still at this stage? 
     ALPO/BAA weight=1.


2019-Aug-21 UT 07:32-07:44 Ill=73% Vallis_Schroteri observed by Pickering_WH on 1891-9-23

     On 1891 Sep 23 at UT 22:00 Pickering, based at Arequipa, Peru, and 
     using a 12" reflector, saw in Schroter's Valley and the vicinity 
     "Varitions in vapor column. Drawings. Time estimated from given 
     colongitude)." Cameron 1978 catalog ID=272 and weight=1. ALPO/BAA 
     weight=1.


2019-Aug-22 UT 01:33-05:11 Ill=65% Plato observed by Mobberley_M on 1982-8-11 *

     On 1982 Aug 11 at UT03:30-04:15 Mobberley (Suffolk, UK) obtained a 
     photograph and made a sketch that revealed a needle-like shadow from 
     the west wall to near by the central craterlet - the latter was quite 
     clearly visible. What were not visible were the other four craterlets. 
     The Cameron 2006 catalog ID=183 and weight=4. The ALPO/BAA weight=2.


2019-Aug-22 UT 03:28-05:17 Ill=65% Alphonsus observed by Kozyrev on 1958-11-3 *

     Alphonsus 1958 Nov 03 UT 02:30-03:30 Observed by Kozyrev, 
     Ezerski (Pulkova Observatory, Crimea, Ukraine, 50" reflector, 
     23A/mm spectrograph) UT03:00-03:30 "C.p. redder than rest; 
     emiss. spect. in 4756A, 4100, 3950A (C3), 5165, 5130A (Swann 
     bands) 3 spect. over 3.5 h. Image of c.p. weakened in viol. 
     light on spect. Noted visual decrease in brightness & reddish 
     glow. Decrease in bright, & unnusual white color(at 0300h-
     0330h). Sudden decrease in vis. bright. Spect. started -- 
     gave norm. Spect. (0330-0340h), conditions almost identical to 
     Alter's on Oct. 26, 1956. Nothing seen on Nov. 2-3" NASA catalog 
     weight=5. NASA catalog ID #703. ALPO/BAA weight=5.


2019-Aug-22 UT 04:24-06:06 Ill=64% Archimedes observed by Darling_D on 1981-9-20

     On 1981 Sep 20 at UT 08:00-09:40 D. Darling (Sun Praire, WI, USA, 
     12.5" reflector, x342, seeing=excellent) detected the small crater on 
     its western rim But not on the eastern floor. This was odd because both 
     are equal in size, furthermore smaller craters could be seen and the 
     Moon was at a high altitude above the horizon, so seeing not a problem. 
     Cameron 2006 catalog ID=154 and weight=3. ALPO/BAA weight=1. 


2019-Aug-22 UT 04:30-05:16 Ill=64% Lexell observed by Unknown_English_Observer on 1919-2-21

     In 1919 Feb 21 at UT 22:00? an unknown English observer observed in 
     Lexell crater an intensely dark line going out from it. The Cameron 
     1978 catalog ID=370 and weight=1. The ALPO/BAA weight=1.


2019-Aug-22 UT 05:12-07:00 Ill=64% Aristarchus observed by Sage_VA on 1978-10-23

     Aristarchus 1978 Oct 23 UT 06:30-06:34 V.A. Sage (Bristol, UK, 
     10.25" reflector, x250, Wratten 44a and 25, seeing II) noted 
     that Aristarchus was surrounded by a dark area in the blue 
     filter. They did not regard this as a TLP at the time. However 
     because Aristarchus is surrounded by blue material in real life, 
     this should have been brighter? For this reason, despite the 
     observer regarding this as a negative TLP, an ALPO/BAA weight=1 
     has been applied.


2019-Aug-23 UT 04:11-05:32 Ill=55% Aristarchus observed by Brook_C on 2004-7-10

     "Observed early morning Moon, with 60mm OG x120, from 02-20 to  02-45 
     hrs UT targeting Plato, Aristarchus, and Alphonsus. From 02-20 to 02-30 
     hrs UT. Aristachus showed a faint pink colouration, where the light 
     material contacted the darker Mare surface. This was not seen after 02-
     30 hrs UT." Transparency very good, seeing somewhat unsteady at first, 
     improving later on. The ALPO/BAA weight=2.


2019-Aug-23 UT 04:46-05:50 Ill=54% Plato observed by Arsyukhin on 1981-12-19

     On 1981 Dec 19 at UT 01:00-05:00 E.V. Arsyukhin (Moscow, Russia, 3" 
     reflector) observed that Plato was consdierably brighter than 
     Aristarchus by several times. The image quality was very clear. The 
     Cameron 2006 catalog ID=161 and weight=3. The ALPO/BAA weight=2.


2019-Aug-23 UT 05:25-07:14 Ill=54% Vallis_Schroteri observed by Pickering_WH on 1891-9-25

     On 1891 Sep 25 at UT 20:00 Pickering, based at Arequipa, Peru, and 
     using a 12" reflector, saw in Schroter's Valley and the vicinity 
     "Varitions in vapor column. Time estimated from given colongitude)." 
     Cameron 1978 catalog ID=273 and weight=1. ALPO/BAA weight=1.


2019-Aug-23 UT 05:36-06:56 Ill=54% Gassendi observed by Foley_PW on 1977-11-3

     On 1977 Nov 03 at 22:13UT P.W. Foley (Kent, UK, 11" reflector, x285)saw 
     some flickering in Gassendi (Clouds on limb - according to Csmeron?). 
     The Cameron 1978 catalog ID=18 and weight=1. The ALPO/BAA weight=1.


2019-Aug-23 UT 06:18-07:26 Ill=54% Aristarchus observed by Moseley_T on 1968-7-18

     Aristarchus and Cobra Head 1968 Jul 18 UT 00:50-01:30 
     Observed by Moseley & Corvan (Armagh, N.Ireland, 10" 
     refractor, x255) and by Moore (Selsey, England, 3" refractor, 
     x 120) "Distinct red glow & obscur. 1st at 0050 S. of C.H. & 
     same size. At 0052h saw color on S.wall of Aris. Both 
     persisted till 0100h then both (faded, then brightened, then 
     faded. Plato, Gassendi & Kepler checked with neg. results. 
     Obscured areas reached greatest extent at 0125h wgen it was 
     1/2 size of C.H. & SSE (ast. ?) of it. Moore was alerted to 
     it & saw it in blink, but not vis. at 0107-0220". NASA 
     catalog weight=5. NASA catalog ID 1085. ALPO/BAA weight=4.


2019-Aug-23 UT 07:46-07:50 Ill=53% Rupes_Recta observed by daSilva on 1971-6-16

     On 1971 Jun 16 at UT 07:08-07:09 Raimundo Nonato da Silva 
     (Parnaiba, PI, Brazil, 9.5" reflector, x90, seeing=good) 
     observed during a lunar eclipse that the Straight Wall 
     surroundings were darker than an observation from two days 
     earlier. At 07:09UT tonality became clearer. As dawn was in 
     progress and atmospheric turbulence, not sure if it was a TLP? 
     Other features were normal. The Cameron 1978 catalog ID=1297 and 
     weight=1. The ALPO/BAA weight=1.


2019-Aug-24 UT 04:25-06:48 Ill=43% Earthshine: (radio) Gamma Leonids: ZHR=low

2019-Aug-25 UT 03:55-07:49 Ill=34% Limb observed by Dunn_S on 1762-6-16 *

     Closest parts of the Moon at Saturn appearing from
     occultation were dull and hazy. Was this an effect of
     the lunar atmosphere or a high haze and halo around the Moon?
     Cameron's 2006 catalog extension gives this an ID No. of 3
     and a weight of 1. The ALPO/BAA catalog weight is also 1.


2019-Aug-25 UT 04:56-06:51 Ill=33% Earthshine: (radio) Gamma Leonids: ZHR=low

2019-Aug-25 UT 07:06-07:56 Ill=33% Aristarchus observed by Theiss on 1973-5-27

     Aristarchus 1973 May 27 UTC 01:09-01:56 Observed by Theiss (51N, 9.67E, 
     75mm reflector) "3 diameters of Aristarchus around its center: orange 
     bright area from 01:09-01:56" Ref: Hilbrecht & Kuveler, Moon & Planets 
     Vol 30 (1984) p53-61"


2019-Aug-26 UT 05:41-06:55 Ill=23% Earthshine: sporadic meteors

2019-Aug-27 UT 06:41-08:00 Ill=14% Littrow observed by Scholes on 1919-12-19

     In 1919 Dec 19 at UT 04:00 Scholes (Huddersfield, England? USA) 
     observed near Littrow a conspicuous ink-black mark (North of Cape 
     Argaeus or S of  Kittrow, The Cameron 1978 catalog ID=374 and the 
     weight=1. The ALPO/BAA weight=1.


2019-Aug-27 UT 06:41-07:10 Ill=14% Reiner observed by Darling_D on 1986-6-4

     Reiner 1986 Jun 04 UT 09:15-09:33 Observed by Darling (Sun Praire, WI, 
     USA, 12.5" Newtonian x79, x40, x35, Seeing 6, sky clear and steady - 
     Moon 9deg above horizon). David Darling was out on the morning of 4 
     June observing the planet Mars. While studying Mars the crescent Moon  
     rose giving me a splendid view of the earthshine portion of the disk. 
     As the Moon rose higher into the sky he decided to turn the telescope 
     onto it to the earthshine region of the Moon. He made it a practice 
     to examine this region of the Moon to monitor for craters that appear 
     to glow under this light. While observing he became aware of a black 
     spot located  in the sunlit portion of the Moon about 60 miles west of 
     the sunset terminator. At first he thought the black spot was a shadow 
     being cast by a large mountain or crater. When looking at his lunar 
     charts he could not locate any feature that would account for it. As he 
     continued to study the black spot he realized that it appeared darker 
     than any shadows on the Moon. It was at 4 June 1986 4:15 A.M. CDT or 
     9:15 U.T. when he first sighted the phenomena and it was at 4:25 A.M. 
     CDT or 9:25 U.T. that he realized he was seeing a lunar transient 
     phenomena event. It was at this time that he could start to see silvery 
     filaments or streaks in the black patch. Between 9:23 and 9:25 U.T. he 
     watched the black patch disappear. When the black spot had disappeared 
     he found that the location of the black spot was over the crater
     Reiner. he estimated that during the L.T.P. event that area covered by 
     the black cloud was approximately 40 to 50 square miles. He also had 
     examined other formations on the Moon during this event and none were 
     exhibiting the same phenomena witnessed over the crater Reiner.


2019-Aug-27 UT 06:41-06:59 Ill=14% Earthshine: sporadic meteors

2019-Aug-27 UT 07:23-08:01 Ill=14% S_Pole observed by Hill_H on 1984-7-25

     Southern cusp obseved by H.Hill (UK) on 1984 Jul 25. Solar 
     Selenographic colongitude=232.6. Observer noted a dusky ill-
     defined strip in Earthshine extending beyond the southern cusp 
     that appeared "atmospheric". Note that this is almost certianly 
     not a TLP but is worth checking out if the libration and solar 
     colongitude is similar, just to verify that this is what the Moon 
     normally looks like. ALPO/BAA weight=1.


2019-Aug-28 UT 07:56-08:04 Ill=6% Alphonsus observed by Whippey_MR on 1967-9-2

     Whippey of Northolt, England, using a 6" reflector, x64 
     (seeing=good) saw a series of weak glows, and a final flash 
     at UT04:18. Similar weak glows had been seen in Petavius and from
     this position approximating Linne (?). At 04:20UT Moseley, of 
     Armagh, Northern Ireland, using a 10" reftactor x 80 
     (seeing=fair) saw a flash in the centre - Alphonsus or Parrot? 
     Cameron says - confirmation of the last flash of Whippey? Cameron 
     2006 extension catalog ID=13 and weight=3. Cameron 1978 catalog 
     ID=1042 and weight=5. ALPO/BAA weight=4.