TLP Repeat Illumination/Libration and Earthshine predictions for: Norway - Oslo



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


2020-Jul-01 UT 20:56-23:07 Ill=87% Plato observed by Marshall_KP on 1982-8-1 *

     On 1982 Aug 01 at 00:00-01:00 K. Marshall (Medellin, Columbia, 12" 
     reflector, seeing I-II) noted shading on the east floor of Plato that 
     was apparently lighter than the rest of the floor and this was seen at 
     both low and high magnifications. Foley notes that this was unusual. 
     There were three craterlets visible on the floor - the central one was 
     the brightest. Cameron 1978 catalog ID=178 and weight=3. ALPO/BAA 
     weight=1.


2020-Jul-03 UT 21:03-23:14 Ill=98% Aristarchus observed by Moore_P on 1995-11-5 *

     Colour seen between Aristarchus and Herodotus by P. Moore
     and G. North. ALPO/BAA weight=3.


2020-Jul-03 UT 22:21-23:14 Ill=98% Lichtenberg observed by Schneller on 1966-6-2 *

     Lichtenberg 1966 Jun 02 UTC 03:05-03:35 Observed by Schneller 
     (Cleveland, Ohio, 8" reflector, slit spectrascope) "Red glow on W. wall 
     (Schnller thinks this is "normal" reddening at SR; however, these vary 
     according to Ricker), (This rep't is the only positive one from alert 
     sent out to observe for J.Green's tidal predictions, See list of neg. 
     obs.)" NASA catalog weight=3 (average). NASA catalog ID #944


2020-Jul-04 UT 22:53-23:26 Ill=100% Aristarchus observed by Gordon on 1966-6-3 *

     Aristarchus 1966 Jun 03 UT 01:00-01:45 Observed by Gordon (2), Delano 
     (Ackerman, PR?, 5" reflector / Massachussets, 3" (x92) & 10" reflector 
     T=4) "Deep blue color on N. wall. S.part of crater was brownish, (not 
     on alert). Delano saw E.wall bright spot unusually bright, confirm, ?" 
     NASA catalog weight=5. NASA catalog ID #947. ALPO/BAA weight=3.


2020-Jul-09 UT 23:25-01:17 Ill=77% Proclus observed by Louderback_D on 1980-8-30 *

     On 1980 Aug 30? at UT 08:00? D. Louderback (South bend, WA, USA, 8" 
     refletor x140) found the north wall to be very bright in red light 
     (this is not normal as it is usually bright in blue - according to 
     Cameron). The brightness was 9.7 (red) and 9 (blue no filter)compared 
     to Eimmart's 8.7. Louderback thought that they observed an oranfe-
     yellow tinge. Cameron 2006 catalog ID=108 and weight=3.


2020-Jul-12 UT 01:49-02:26 Ill=59% 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.


2020-Jul-12 UT 01:49-02:19 Ill=59% 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.


2020-Jul-23 UT 19:58-20:43 Ill=12% Aristarchus observed by Cross on 1969-5-20 *

     On 1969 May 20 at UT 03:18-04:27 Cross (Las Cruces, NM, USA 6" 
     refractor), Olivarez (Spain?), Kohlenberger, Gibson, Miller, Duarte and 
     Harris (CA, USA) observed brightenings, pulsations, scintillations in 
     Aristarchus crater. Cameron says independent confirmation seen by 4 
     observers, 1-2 magnitude increases, ranged between 1-30sec. Most active 
     period was 03:18-03:20UT, 04:17-04:27UT (Las Cruces). Calkins (West 
     Covins, CA, USA) UT 03:40-04:25 saw one major brightening up 2 
     magnitudes above steady state lasting 0.2 to 1.5 sec and another slow 
     brightening lasting 5-10 seconds. Kelsey (CA, USA) saw at 03:43-03:48UT 
     some brightenings. These observations were made during the Apollo 10 
     watch. The Cameron 1978 catalog ID=1127 and 1128 and weight=5. The 
     ALPO/BAA weight=4.


2020-Jul-29 UT 19:45-20:47 Ill=75% Plato observed by Robinson_JH on 1966-6-27 *

     Plato 1966 Jun 27 UT 21:40-21:55  Observed by Robinson (Teignmouth, 
     England, 10.5" reflector) and Sartory (England, 8.5" reflector + Moon 
     blink) "Color (red?) on SE wall detected by Eng. moon blink sys. 
     (confirm)." NASA catalog weight=5 (very high). NASA catalog ID 949.


2020-Jul-31 UT 20:29-21:28 Ill=91% Plato observed by Foley_PW on 1983-7-21 *

     On 1983 Jul 21 at UT 21:02-23:18 P.W. Foley (Kent, UK, 12" reflector, 
     seeing=III) found the region around the cleft on the souther rim to be 
     out of focus - however atmospheric conditions were turbulent until 
     23:18UT. An unsual dark triangular region (long base against rim) was 
     seen to extend from the inner rim at 12 o'clock onto the floor for 13-
     16km. The crater had lots of detail elsewhere. M. Cook (Frimley, UK) 
     found the south east to soth west to be obscured again, but not as 
     badly as she had seen on the 20th July. J. Cook (Frimley, UK) found the 
     dark region had 2 white bands on the side and the south west wall was 
     blurred like it was on the 20th July - this time tough colour was not 
     present. There were also two light patches on the floor. Mosely 
     (Coventry, UK) observed the south wall at x120 and found the wall out 
     of focus at the 11 o'clock location. Through a yellow filter he saw a 
     "white mistiness: on the top of the southern rim and only the south 
     east cleft could be seen (no colour). By 22:40-23:00 the effect had 
     cleared up. No dark triangular patch was seen. When Marshall (Surrey, 
     UK) observed (22:30-03:00) nothing unsual was seen, though a sketch 
     provided shows a light patch on the floor located at 11 o'clock. All 
     observations, made by all observers had some atmospheric turbulence, 
     however trsnparency was good. The Cameron 2006 catalog ID=225 and the 
     weight=5. The ALPO/BAA weight=3.