TLP Repeat Illumination/Libration and Earthshine predictions for: Russia - Sergiev_Posad



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


2026-Jun-07 UT 22:37-23:08 Ill=55% Linne observed by Markov on 1918-4-4 *

     Linne 1918 Apr 04 UTC 01:00?  Observed by Markov (Russia) "In place of 
     crater only a hill 2km in diam. was vis. (seen in dark). " NASA catalog 
     weight=1, low, NASA catalof ID #368. ALPO/BAA weight=1.


2026-Jun-10 UT 00:37-00:38 Ill=33% 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.


2026-Jun-18 UT 18:10-00:00 Ill=18% Plato observed by Selivanov on 1919-3-5

     Plato 1919 Mar 05 UT 17:19:17:34 Observed by Selivanov, Tartakov 
     (Russia, 4" refractor? x150) "Crater seemed to be an intense green in 
     the background of Ashen light. Slightly to the left (east?) of it's 
     centre a bright spot that sparkled with a phosphor. light, lighting up 
     the whole crater so that its W. edge could be seen. Light did not 
     change for the whole time." NASA catalog weight=4 (good). NASA catalog 
     ID #371.


2026-Jun-18 UT 18:10-00:00 Ill=18% Aristarchus observed by Tungside on 1969-7-18

     On 1969 Jul 18 at UT 03:53-04:21 Tungside? (CA, USA, 8" reflector) saw 
     a blue flash in Aristarchus crater. Apollo 11 watch. The Cameron 1978 
     catalog ID=1156 and weight=3. The ALPO/BAA weight=2.


2026-Jun-18 UT 18:10-00:00 Ill=18% Krafft observed by Harris on 1969-7-18

     On 1969 Jul 18 at UT 04:16 Harris (Torrence, CA, 12" reflector) saw 
     Kraft brighten at this time. Apollo 11 watch. The Cameron 1978 catalog 
     ID=1156 and weight=3. The ALPO/BAA weight=2.


2026-Jun-18 UT 18:10-00:00 Ill=18% NW_Limb observed by Kohlenberger on 1969-7-18

     On 1969 Jul 18 at UT 03:53-04:21 Kohlenberger (Fullerton, CA, 4.5" 
     reflector), Harris and Bell (Torrence, CA, 12" reflector) saw a 65km 
     long limb brightneing between Grimaldi and Aristarchus, a third of the 
     way from Aristarchus. The Cameron 1978 catalog ID=1156 and weight=3. 
     The ALPO/BAA weight=1.


2026-Jun-18 UT 18:10-00:00 Ill=18% Aristarchus observed by Watkins_E on 1972-3-18

     On 1972 Mar 18 at UT2015 E. Watkins, P. Hooks, D. Harris and R. Pieper 
     (Conditions bad: a lot of mist and haze in the sky, 10" (x80 and x160) 
     and 4.5" reflectors (x45, x150 and x225), observers were located in the 
     UK) Aristarchus seen on the night side of the Moon - P. Hooke saw a red 
     orange outburst from the ctater. When E. Watkins had a look, it just 
     resembled a misty white area i.e. normal. Eyepieces were changed but it 
     stayed misty white. Hooke was an inexperienced TLP observer at the 
     time. Watkins did however notice some variation in brightness but put 
     this down to atmospheric conditions. This is a BAA observation. 
     ALPO/BAA weight=1.


2026-Jun-18 UT 18:10-00:00 Ill=18% Aristarchus observed by Spain_D on 1991-4-18

     On 1991 Apr 18 at UT 02:00-03:02 D. Spain (Fairdale, KY, USA, 3.5" 
     reflector, S=6/10) could only see Aristarchus using averted viion. K. 
     Herzog (Racine, WI, USA, 6" refractor, x38) observed Aristarchus to 
     cycle through glowing and fading down to Earthshine brightness in a 3 
     minute cycle, but they could niot see Copernicus, Kepler or Tycho in 
     Earthshine. W. Dembowski (USA) obtained photographs but these did not 
     reveal anything unusual. The Cameron 2006 catalog ID=422 and the 
     weight=1. The ALPO/BAA weight=1.


2026-Jun-19 UT 18:11-18:23 Ill=28% Picard observed by Birt_WR on 1877-6-15

     On 1877 Jun 15 at UT 20:00 Birt (England, UK) observed a bright spot 
     east of Picard. The reason why this was regarded as a TLP, accoridng to 
     Cameron was that it was supposed to be faint or invisible. The Cameron 
     1978 catalog ID=193 and the weight=3. The ALPO/BAA weight=3.


2026-Jun-19 UT 18:11-18:23 Ill=28% Grimaldi observed by Harris on 1969-7-19

     On 1969 Jul 19 at UT 03:53-04:19 Harris (Torrence, CA, USA, 12.5" 
     reflector), Bell (Duarte, CA, USA, 4.5" reflector), and Miller (Ojai, 
     CA, USA). "Harris saw 20 brightenings or light flashes, lasting fr, 1/2 
     to 3s at 03:53:56 (1/2s), 03:54:19 (1s), 03:54:55 (2s), 03:55:06, 
     03:56:54, 03:56:56, 03:58:37, 03:59:58, 04:07:28, 04:15:00, 04:16:02, 
     04:16:45, 04:20:29, 04:21:14. First 4 were confirmed by Bell, Harris 
     also saw 100 mi(160km) long limb brightening (blue) between Aris & 
     Grimaldi, due W. of Aris., brighter than Aris. At 04:14 saw the 
     brightening 1/2 way between Aris. & Grim. as pinkish or orange. Miller 
     at 0417h saw a star-like pulse in W. (IAU?) rim of Grimaldi. (confirm. 
     of Harris'04:16:45 obs. ? Apollo 11 watch)." The Cameron 1978 catalog 
     ID=1161a and weight=3. The ALPO/BAA weight=3.


2026-Jun-19 UT 18:11-18:23 Ill=28% W_Limb observed by Harris on 1969-7-19

     On 1969 Jul 19 at UT 03:53-04:19 Harris (Torrence, CA, USA, 12.5" 
     reflector), Bell (Duarte, CA, USA, 4.5" reflector), and Miller (Ojai, 
     CA, USA). "Harris saw 20 brightenings or light flashes, lasting fr, 1/2 
     to 3s at 03:53:56 (1/2s), 03:54:19 (1s), 03:54:55 (2s), 03:55:06, 
     03:56:54, 03:56:56, 03:58:37, 03:59:58, 04:07:28, 04:15:00, 04:16:02, 
     04:16:45, 04:20:29, 04:21:14. First 4 were confirmedby Bell, Harris 
     also saw 100 mi(160km) long limb brightening (blue) between Aris & 
     Grimaldi, due W. of Aris., brighter than Aris. At 04:14 saw the 
     brightening 1/2 way between Aris. & Grim. as pinkish or orange. Miller 
     at 0417h saw a star-like pulse in W. (IAU?) rim of Grimaldi. (confirm. 
     of Harris'04:16:45 obs. ? Apollo 11 watch)." The Cameron 1978 catalog 
     ID=1161a and weight=3. The ALPO/BAA weight=3.


2026-Jun-19 UT 18:11-18:23 Ill=28% Hipparchus observed by Schnuckel on 1972-3-19

     Hipparchus 1972 Mar 19 UT 21:07-21:29 observed by Schnuckel (52.5N, 
     13.8E, 60mm refractor) "Two sudden white brightenings in the West wall 
     approx 7 magnitude. First was at 21:07 UT and the second was at 
     21:29UT. Both lasted approximately 1 sec in duration." - Hilbrecht and 
     Kuveler, Earth, Moon & Planets, 30 (1984), p53-61


2026-Jun-20 UT 18:11-18:29 Ill=38% Helicon observed by Villeneuve on 1787-5-22

     Bright spot seen. The Cameron 1978 catalog
     gives this TLP an ID No. of 36 and a weight
     of 1. The ALPO/BAA catalog weight is also 1.


2026-Jun-20 UT 18:11-18:29 Ill=38% Aristarchus observed by Kozyrev on 1968-6-1

     On 1968 Jun 01 at UT 21:00? Kozyrev (Crimea?, Soviet Union)
     Gas luminescence seen in Aristarchus crater. The Cameron 1978 catalog 
     ID=1075 and weight=3. The ALPO/BAA weight=3.


2026-Jun-20 UT 18:11-18:29 Ill=38% Proclus observed by Gergoulis on 1969-7-20

     Proclus 1969 Jul 20 UT 03:55-04:15 Observed by Gergoulis, Morley, 
     Sevra, Skinner, and Naumann (Edinburg, TX, 17" reflector, x169) " Texas 
     group got a blink (red, Trident MB) on NW wall. Varied extremely. 
     Increased in brightness in red. Clouds stopped obs. 5 confirmed 
     visualy. (moon nr. horizon, Apollo 11 watch. No blink if spurious?)." 
     NASA catalog weight=3 (average). NASA catalog ID #1170.


2026-Jun-20 UT 18:11-20:11 Ill=38% Burg observed by Moore_P on 1972-5-18 *

     Burg 1972 May 18 UT 20:50-21:45, 22:15-23:00 Observed by Moore 
     (Selsey, England, 12.5" reflector, x350, S=3-4), and Fitton 
     (Lancashire, England, 8.5" reflectpr, x200) "Suspected floor 
     brightening at 2050h with a luminous strip to the SW. Persisted 
     for sometime. Faded at 2110h & invis. at 2145h. Fitton from 
     2215h-2300h saw nothing unusual, (after event tho.)" NASA 
     catalog weight=3. NASA catalog ID #1333. ALPO/BAA weight=1.


2026-Jun-21 UT 18:11-18:25 Ill=48% Earthshine observed by Harrison_H on 1877-6-17

     On 1877 Jun 17 at UT 21:00? Harrison (USA?) observed a light point on 
     the Earthlit side of the Moon. He also observed a luminous point that 
     could not be identified (Cameron speculates that this could be a 
     confirtmation of Denett's Bessel observation?). The Cameron 1978 
     catalog ID=195 and the weight=3. The ALPO/BAA weight=2.


2026-Jun-21 UT 18:11-18:25 Ill=48% Rabbi_Levi observed by Perez on 1969-5-23

     Rabi Levi 1969 May 23 UT 05:28-05:35 Observed by Perez, Gay, Skinner, 
     Floodine (Edinburgh, TX, USA, 17" reflector) "3 small craters in it, 
     middle one had a blink (Trident MB --red) very bright & the NW crater 
     of the 3 had a dimmer blink. A few bright flashes were seen vis. by 3 
     obs. without the image tube, lasting 15s. Clouded out at 0525h, (alt. 
     of moon was very low--atm?, ? Apollo 10 watch)." NASA catalog weight=3 
     (average). NASA catalog ID #1140.


2026-Jun-21 UT 18:11-18:25 Ill=48% Mare_Crisium observed by Brook_C on 2009-4-1

     On 2009 Apr 01 at UT 20:00-20:30 C. Brook (PLymouth, UK, 
     5" refractor, x40 and x100, using red and blue gelatine 
     Edmund Optics filters observed that a few bright areas
     in the centre of mare Crisium were brighter in red at 
     the start of the observing session than in blue, although 
     not at a higher magnification. The observation ended when 
     seeing worsened. The ALPO/BAA weight=2.


2026-Jun-21 UT 19:13-20:25 Ill=49% Theophilus observed by Ruchatz on 1972-5-19 *

     Theophilus 1972 May 19 UT 23:48 Theophilus observed by Ruchatz (51N 
     10E, 60mm refractor, T=4, S=2) "Diminution of brightness of the S wall 
     for a short time" - Hilbrecht and Kuveler, Earth, Moon & Planets, 30 
     (1984), p53-61.


2026-Jun-22 UT 18:11-20:29 Ill=59% Mons_Piton observed by Schneller on 1960-12-26 *

     Piton 1960 Dec 26 ? UT 00:00? Observed by Schneller (Cleveland, OH, 
     USA, 8" Reflector, x53), "Red obscuration; less intense than Nov. (date 
     not given, but discussion suggests near SR, therefore Dec 28th most 
     likely date -- ancill. data given for 28th)." NASA catalog weight=3 
     (average). NASA catalog ID #732.


2026-Jun-22 UT 18:11-18:29 Ill=59% Theophilus observed by Haiduk on 1972-5-20 *

     Theophilus 1972 May 20 UTC 19:10-19:59 Observed by Haiduk (13.25E, 
     52.5N, 75mm refractor) "Well visible brihtening on the SW wall" S=2, T=
     3 Ref: Hilbrecht & Kuveler Moon & Planets (1984) Vol 30, pp53-61.


2026-Jun-22 UT 18:11-20:29 Ill=59% Torricelli_B observed by Gray_R on 2002-10-14 *

     Torricelli B 2002 Oct 14 UT 02:58-03:43 Observed by Gray (Winnemucca, 
     NV, USA, 152mm refractor x114, x305, seeing Antoniadi III, transparency 
     good) "I was out this morning (2:58-3:43 UT, October 14, 2002) 
     observing Torricelli B. At 3:17 UT the west sunlit wall of the crater 
     brightened from an intensity (Elger Scale) of 5.0 to 9.0. In actual 
     terms it went from slightly less bright than the walls of Picard to as 
     bright as the sunlit west wall of Dionysius. This was observed at 114x 
     in white light, where all three craters were in the field of view 
     simultaneously. This event lasted less than a minute and no comparable
     brightening in Dionysius or Picard was seen. The wall of Torricelli B 
     returned to 5.0 in brightness. I continued to observe Torricelli B in 
     white light until 3:43 UT, but the brightness remained at 5.0. Before 
     the brightening I tried blinking Torricelli with the following 
     combinations of filters: Wratten Red 25 and Blue 38A, Red 25 and Blue 
     80, and Red 25 and Schott BG38 (Blue Green). Nothing showed up more 
     prominently in any combination except the Red 25-Blue 38A combination, 
     where Torricelli B became invisible in the Blue, probably because of 
     the filter density. Both the Blue 80 and Schott BG 38 seemed closer in
     density to the Red 25 than the Blue 38A is. I could not see any details 
     inside Torricelli B during this session, including the bright spot on 
     the NE rim." The ALPO/BAA weight=3.


2026-Jun-24 UT 18:11-19:27 Ill=77% Manilius observed by Kern on 1972-5-22 *

     Manilius 1972 May 22 UTC 20:10-20:40 observed by Kern (48deg 45'N, 8deg 
     45'E, 60mm refractor) "The SW inner wall became brighter at times" - 
     Hilbrecht and Kuveler, Earth, Moon & Planets, 30 (1984), p53-61.


2026-Jun-25 UT 18:51-20:33 Ill=85% Plato observed by Crick on 1979-12-29 *

     On 1979 Dec 29 at UT 17:45-18:20 Crick (Merchtem, Belgium, 6" 
     reflector, x140, seeing=III) found a violet spot in the NW inner wall. 
     The floor was obscured of detail on the northern half. All other 
     regions studied appeared normal. Observer unsure if this was a TLP or 
     spurious colour. Cameron 2006 catalog ID=80 and weight=3. ALPO/BAA 
     weight=3.