TLP Repeat Illumination/Libration and Earthshine predictions for: USA AK Anchorage



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


2018-Jun-17 UT 08:42-08:47 Ill=17% Aristarchus observed by Kalauch on 1982-5-26 *

     On 1982 May 26 at UT 20:25-20:40 Kalauch (Berlin?, Germany, 9" 
     refractor, x60, T=1(best) and scintilation=2) found Aristarhus to be 
     "very visible" in Earthshine - which was very clear. At 20:25 UT 
     Aristarchus was seen to blink irregularly and then it attained 
     magnitude 7 (red). Telescopes and eyepieces were changed but did not 
     effect the appearance. It disappered at 20:40UT. Cameron 2006 catalog 
     ID=168 and weight=2. ALPO/BAA weight=2.


2018-Jun-18 UT 07:29-09:14 Ill=27% Endymion observed by Arsyukhin on 1982-5-27 *

     On 1982 May 27 at UT 17:05-17:35 E.V. Arsyukhin (Moscow, Russia, 3" 
     reflector) found Endymion had a dark spot in the middle for about 30 
     min. The Cameron 2006 catalog ID=169 and weight=3. The ALPO/BAA 
     weight=2.


2018-Jun-18 UT 07:29-09:10 Ill=27% Lacus_Somniorum observed by Arsyukhin on 1982-5-27 *

     On 1982 May 27 at UT 17:05-17:35 E.V. Arsyukhin (Moscow, Russia, 3"
     reflector) found Lacus Sominorum was very bright, misty and the colour 
     varied. It was back to normal on the 28th and abnormal on 29-31st. - 
     had a dark spot in the middle for about 30 min. The Cameron 2006 
     catalog ID=169 and weight=3. The ALPO/BAA weight=2.


2018-Jun-20 UT 07:30-09:48 Ill=49% Mont_Blanc observed by Schroter on 1789-9-26 *

     On 1789 Sep 26 at UT 03:30 Schroter (Lillienthal, Germany) observed 
     close beneath Mons Blanc at the west foot, in the dark, a small 5th 
     magnitude, speck of light. Its round shadow was sometimes black, 
     sometimes grey. Cameron suspects that this is the same as her TLP 
     report No. 50. the Cameron 1978 catalog ID=62 and weight=4. The 
     ALPO/BAA weight=3.


2018-Jun-20 UT 07:30-07:37 Ill=49% Aristarchus observed by Butler_FC on 1981-3-12

     On 1981 Mar 12 at UT 19:25-20:30 Butler (of Brixton, UK, using a 
     10" reflector at 32-64x) noticed that Aristarchus was not 
     visible, although the Earthshine was very obvious. Foley (of 
     Kent, UK, and using  12" reflector) noticed that the crater was 
     only just visible but Plato could definitely be seen. Cameron's 
     2006 TLP extension catalog ID=125 and weight=0. ALPO/BAA 
     weight=2.


2018-Jun-20 UT 07:54-09:48 Ill=49% Aristarchus observed by Schroter on 1789-9-26 *

     On 1789 Sep 26 at UT04:25? Schroter (Lillienthal, Germany) 
     noted a bright point 26" north of Aristarchus crater. Note 
     that the year might have been 1788? The Cameron 1978 catalog 
     ID=50 and the weight=3. The ALPO/BAA weight=3.


2018-Jun-20 UT 07:54-09:48 Ill=49% Plato observed by Schroter on 1789-9-26 *

     On 1789 Sep 29 at UT04:25? Schroter (Lillienthal, Germany) noted 
     1'18.5" south east of plato was a whitish bright spot shining somewhat 
     hazily, 4-5"in diameter and at 5th magnitude. He never saw this again. 
     The spot became conspicuous at times and then disappeared. There was 
     nothing else similar in Earthshine. Note that the year might have been 
     1788? The Cameron 1978 catalog ID=50 and the weight=3. The ALPO/BAA 
     weight=3.


2018-Jun-20 UT 08:04-09:48 Ill=49% Mare_Crisium observed by Schroter on 1789-9-26 *

     Schroter, from Lillenthal in Gemany, in 1789 (possibly it was 1788) Sep 
     26 UT 04:30 saw a small nebulous bright spot on the northern edge of 
     Mare Crisium. Cameron 1978 catalog ID=50 and weight=3. ALPO/BAA 
     weight=2.


2018-Jun-21 UT 07:30-07:36 Ill=59% Ptolemaeus observed by Ingalls on 1866-4-22

     Ptolemaeus 1866 Apr 22 UTC 20:00? Observed by Ingalls (Champion Hills, 
     England, UK) "Crater on term., unusually smooth surf. seemed much 
     diversified & gave impression, as at many other times that there was an 
     obscuring medium". NASA catalog weight=3 (average). NADA catalog ID = 142. ALPO/BAA weight=3.


2018-Jun-21 UT 07:30-07:38 Ill=59% Werner observed by Lippert_RM on 1953-9-16

     On 1953 Sep 16 UT03:00 R.M. Lippert (San Diego, CA, USA, 20cm 
     Cassegrain reflector, x90)saw a bright magnitude 1 flash on the 
     Moon, that was probably on the east rim of Werner(?) crater. It 
     is unclear if the observer meant it was really magnitude 1, or 
     was what a magnitude 1 star would have looked like. The flash 
     was yellow-orange in colour. Observation described in the 
     "Observations and Comments" column in the December, 1953 
     Strolling Astronomer (Vol. 7, No. 12), on page 170. The ALPO/BAA 
     weight=3.


2018-Jun-21 UT 07:30-07:38 Ill=59% Pickering observed by Collier on 1971-1-4

     Pickering 1971 Jan 04 UTC 20:29-20:37 Observed by Collier (London, 
     England) "Between Saunder and Rhaeticus, apparently coming from Pick. 
     After 2027h it dimished with extraordinary swiftness, like a light goes 
     out. (experienced observer)" NASA catalog weight=?. NASA catalog ID #
     1281. Note that this crater was previously called E.C. Pickering before 
     the IAU renamed some craters.


2018-Jun-21 UT 07:30-00:00 Ill=59% Alphonsus observed by Hopp on 1972-9-15

     Alphonsus 1972 Sep 15 UTC 18:48-18:56 Observed by Hopp (13.25E, 52.5N, 
     75mm refractor) "Diffuse white to blue area within the crater - not 
     sure" T=4, S=4. Ref: Hilbrecht & Kuveler Moon & Planets (1984) Vol 30, 
     pp53-61.


2018-Jun-22 UT 08:35-09:20 Ill=70% Alphonsus observed by Brook_C on 2001-6-29 *

     On 2001 Jun 29 at UT22:16-22:22 C. Brook (Plymouth, UK, 60mm refractor, 
     x120, no spurious colour seen, seeing I) observed that the central 
     peaks of Alphonsus looked bright at 22:16UT but had dimmed by 22:22UT. 
     The three dark patches on the floor of Alphonsus were clearly seen. The 
     ALPO/BAA weight=1.


2018-Jun-22 UT 08:35-09:20 Ill=70% Arzachel observed by Brook_C on 2001-6-29 *

     On 2001 Jun 29 at UT 22:16-22:20 C. Brook (Plymouth, UK, seeing 
     conditions very good, x120) reported that the central peak of Alphonsus 
     was brighter than the central peak of Arzachel (or was it the other way 
     around?). Cook observed 4 hours later from Washington DC, USA and found 
     that on CCD images that the central peak of Alphonsus was only slightly 
     less than that of Arzachel. The ALPO/BAA weight=2.


2018-Jun-23 UT 07:31-08:51 Ill=79% Mons_Piton observed by Moore_P on 1958-9-23 *

     Piton 1958 Sep 23 UT 00:00? Observed by Moore? (UK?) "Enveloped 
     in an obscuring cloud-like mist" NASA catalog ID 697. NASA 
     catalog weight=2. ALPO/BAA weight=2.


2018-Jun-24 UT 10:13-10:28 Ill=87% Plato observed by Mobberley_M on 1982-6-2 *

     Plato 1982 Jun 02 UT 22:00. Mobberley could not see the 
     central craterlet on the floor of Plato tonight. Foley notes 
     that he could only just see the central craterlet on nights of 
     2-5th Jun and it was of reduced in brightness from normal. 
     North reported that the floor seemed nearly black, but 
     brighter in a green filter (x144 magnification used). All 
     three observers compared the Plato area to other areas for 
     reference. All the above seems normal, apart from the floor
     being brighter in the green filter. Cameron 2006 extension 
     catalog ID 170 and weight=5. BAA/ALPO weight=3.


2018-Jun-25 UT 07:30-09:05 Ill=92% Deslandres observed by Penzel_E on 1965-5-12 *

     On 1965 May 12 at UT 19:10 E. Penzel (Rodewisch, East Germany) was 
     taking a sequence of images during the impact of the Soviet Lunik 5. He 
     detected a tens of km scale elongated cloud after the impact over a 
     duration of 9.5 minutes. However there are differences between the 
     images elsewhere on the Moon, possibly due to different exposures or 
     some other effects and it is not 100% sure that what he detected was 
     impact debris/cloud?. The ALPO/BAA weight=3.


2018-Jun-25 UT 07:30-08:04 Ill=92% Aristarchus observed by Prout on 1976-9-5 *

     Aristarchus 1976 Sep 05/06 UT 18:45-01:35 Observed by Prout 
     (England?, 12" reflector, S=III-II), Foley (England, 12" 
     reflector), Moore and Spry (Sussex, England, 12" reflector) 
     "Viol. hue on crater on W. wall, especially NW corner seen by 
     Prout & 2 Foleys. Moore & Spry did not see color. All obs. noted 
     that the crater was dull 


2018-Jun-25 UT 08:28-10:38 Ill=93% Bailly observed by Miles_H on 1965-5-12 *

     On 1965 May 12 at UT 22:20 H. Miles (UK) found a possible 
     obscuration in Bailly crater. Most of the region was as sharp as 
     normal, but the central area was greyish and blurred. Although 
     the observer concerned considered themselves a non-experienced 
     observer, another BAA Lunar Section observer saw the same 
     effect. ALPO/BAA weight=2.


2018-Jun-26 UT 07:30-07:44 Ill=97% Vallis_Schroteri observed by Pickering_WH on 1897-10-8 *

     Schroter's Valley 1897 Oct 08 UT 22:00 Observed by Pickering 
     (Cambridge, Maas., USA, 15"? refractor) "Variations in vapor col. 
     Tillsow, C was largest compared with D&E& most conspicuous 1.3 d after 
     sunrise. Drawing. (time est. fr. given colon.)" NASA catalog weight=3 
     (average). NASA catalog ID #291.


2018-Jun-27 UT 07:32-08:08 Ill=99% Schickard observed by Moore_P on 1940-5-20 *

     Schickard 1940 May 20 UT 20:00 Observed by Moore (England, 12?" 
     eflector) "Fog on floor -- milky appearance, less pronounced 
     than on 8/2/39 (see #456)." NASA catalog ID #465. NASA catalog 
     weight=4. ALPO/BAA weight=2.


2018-Jun-27 UT 10:11-11:13 Ill=99% Plato observed by Chapman on 1982-6-5 *

     On 1982 Jun 05 at 22:00? UT, Chapman (UK, using a 12" reflector), again 
     using a x2 yellow filter, noticed that the central craterlet 
     detectabilty changed such that sometimes it was visible and sometimes 
     not. Foley (Kent, UK)noticed that the central craterlet could only just 
     be seen between June 2 to June 5 and was much less discernable than 
     during the previous lunation. No CED brightness measurements made. The 
     floor of Plato was noted to be very dark though. Cameron 2006 catalog 
     ID=172 and weight=4. ALPO/BAA weight=2.