TLP Repeat Illumination/Libration and Earthshine predictions for: Denmark - Copenhagen



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


2024-Jun-05 UT 02:09-02:34 Ill=3% Proclus observed by Barrett on 1879-3-21 *

     On 1879 Mar 21 at UT 04:00 Barrett (England?) observed brilliant 
     illumination in Earthshine, not by the light of the Sun. This was with 
     a Moon's age of 1.5 days before New Moon. The Cameron 1978 catalog ID=
     213 and the weight=3. The ALPO/BAA weight=2.


2024-Jun-07 UT 20:49-21:32 Ill=2% Earthshine: (radio) Daytime Arietids: ZHR=30? (vel=41 km/s)

2024-Jun-08 UT 19:43-21:33 Ill=6% Aristarchus observed by Manske_R on 1988-4-18 *

     On 1988 Apr 18 at UT 19:00 R. Manske (Madison, WI, USA) observed that 
     Aristarchus? was glowing in Earthshine. Weier (Madison, WI, USA) 
     detected it easily in 7x50 binouculars. Spain (Fairfield, KY, USA) 
     though detected no TLP, nor could he see Aristarchus. The Cameron 2006 
     catalog ID=324 and the weight=0. The ALPO/BAA weight=1.


2024-Jun-08 UT 20:50-21:57 Ill=7% Earthshine: (radio) Daytime Zeta Perseids: ZHR=30? (vel=25 km/s)

2024-Jun-09 UT 19:44-20:05 Ill=12% Aristarchus observed by Celis on 1970-5-8

     On 1970 May 08 at UT 23:00-23:30 Celis (Quilpue, Chile, 3" refractor, 
     x60, atmosphere turbulent) observed in the Aristarchus region a clear 
     line(?) and several star-like points. Cameron suspects atmospheric 
     effects due to low altitude and turbulence? The Cameron 1978 catalog 
     ID=1259 and weight=1. The ALPO/BAA weight=1.


2024-Jun-09 UT 19:44-21:08 Ill=12% Aristarchus observed by Darling_D on 1989-4-9 *

     On 1989 Apr 09 at 02:13 was seen to be not very bright in binoculars, 
     despite visibility of Earthshine in general as being exceptional. 
     Darling confirmed this at 02:31UT, though it was quite bright in a 
     17" reflector,but Herodotus could barely be seen. Weier claimed to be 
     able to see Aristarchus with the naked eye. At 02:08 the brightness was 
     found to be 5.0 for several measurments. The observing team ware from 
     the Maddison Asgtronomical Society, WI, USA. The Cameron 2006 catalog 
     ID=359b and he weight=3. The ALPO/BAA weight=2.


2024-Jun-09 UT 19:44-20:05 Ill=12% Gassendi observed by Graham_F on 1990-4-28

     On 1990 Apr 28 at UT 00:00-00:30 F. Graham (Marshall TWP, OH, USA, 6" 
     reflector) during a failed attempt to observe the occultation of X6493 
     that was thwarted by clouds, noticed that Gassendi was "Gass,>>,>Aris 
     or anything else". The crater had a "milky lustre". It is possible that 
     another occultation observing group may have a video of the Earthshine 
     at this time. Darling (Sun prairem WI, USA, 20x50 binoculars) could not 
     see Earthsine, though the sky was bright at the time. The Cameron 2006 
     catalog ID=402 and the weight=0. The ALPO/BAA weight=1. 


2024-Jun-09 UT 20:52-22:04 Ill=13% Earthshine: (radio) Daytime Zeta Perseids: ZHR=30? (vel=25 km/s)

2024-Jun-10 UT 19:44-20:32 Ill=19% Boussingault observed by Schmidt_J on 1860-4-24

     Boussingalt 1860 Apr 24 UT 20:00? Observed by Schmidt (Athens, Greece, 
     7" refractor) "Noted weak glows on the crater he tho't prob. due to 
     wall reflections on floor" NASA catalog weight=0 (very unlikely to be a 
     TLP). NASA catalog ID #132. ALPO/BAA weight=1.


2024-Jun-12 UT 19:46-20:43 Ill=37% W_Limb observed by Webb_TW on 1855-6-20

     In 1855 Jun 20 at UT 21:00 T.W. Webb (England) observed a trace of 
     twilight (Cameron says also seen by Gruithuisen, Henry and others at 
     times). Webb gives a low weight to his own observation, saying "for 
     want of better optical means". The Cameron 1978 catalog ID=130 and 
     weight=1. The ALPO/BAA weight=1. 


2024-Jun-12 UT 20:14-21:03 Ill=37% Mare_Imbrium observed by Unknown_Italian_Observers on 2012-3-28

     On 2012 Mar 28 at UT 20:45-20:50 Two unknown Italian 
     observers, reported on an on-line formum that they had 
     independently seen a distinct glow with a comma/drop shape. 
     One of them moved the Moon and the glow moved with the Moon. 
     It is uncertain how experienced the observers where. A chart 
     was provided which shows the lcoation of the glow in the 
     western side of Mare Imbrium. It is just possible that this 
     was Aristarchus in Earthshine, though that is very slightly 
     further west and south than the observers reported. ALPO/BAA 
     weight=1.


2024-Jun-12 UT 20:55-21:05 Ill=37% Earthshine: sporadic meteors

2024-Jun-12 UT 22:32-22:50 Ill=38% Cepheus_A observed by Collins_M on 2000-10-4 *

     Cepheus A 2000 Oct 04 UTC 08:15-08:50 Observer: Maurice Collins 
     (New Zealand, 90cm ETX) - observer noted that crater was 
     extremely bright - wasn't sure if this was normal and at the 
     time rated it as the brightest (contrasty?) crater that he had 
     ever seen on the Moon. Many years later he suspected that he may 
     have mis-identified the crater. This still leaves us with thr 
     problem as to why a crater should be so bright in this region, 
     and if so, which one? ALPO/BAA weight=1.


2024-Jun-13 UT 20:56-21:10 Ill=47% Earthshine: sporadic meteors

2024-Jun-14 UT 19:47-20:37 Ill=56% Proclus observed by Dean on 1970-7-11

     Proclus 1970 Jul 11 UT 20:35-20:45 Observed by Dean, Jamieson, 
     Sparks (Ruislip, ------, England, 6" relector x156) "Dean saw 
     something in Proclus, alerted Jamieson who saw nothing unusual 
     at 2043h, but tho't Secchi was quite bright. At 2035 Sparks saw 
     Proc. fluctuate. Red & blue filters showed some reduction in 
     brightness. E. edge showed darkening, but not as dark as in 
     shadows. 10 min later, returned to normal. (Sparks confirmed 
     Dean)." NASA catalog weight=5. NASA catalog ID #1267. ALPO/BAA 
     weight=3.


2024-Jun-14 UT 19:47-20:37 Ill=56% Secchi observed by Dean on 1970-7-11

     1970 Jul 11 UT 20:35-20:45 During a TLP alert for Proclus, Jamieson  
     saw nothing unusual, but found instead that Secchi was quite bright.  
     NASA catalog weight=5 (very good). NASA catalog ID #1267. ALPO/BAA 
     weight=1.


2024-Jun-14 UT 19:47-21:04 Ill=56% Eimmart observed by Louderback_D on 1983-9-15

     On 1983 Sep 15 at UT 05:20-05:24 Louderback (South Bend, WA, USA, 
     8" reflector and 3" refractor, seeing poor) found that the west wall of 
     Eimmart was unusually bright (8.3) and apparently it was almost as 
     bright as the "WEBS(of Aris?) at its brightest". The crater was 
     apparently normal again on Sep 20 and 26. The Cameron 2006 catalog ID=
     228 and the weight=3. The ALPO/BAA weight=2.


2024-Jun-14 UT 19:47-20:12 Ill=56% Mons_Pico observed by Adee_J on 2008-4-13

     2009 Apr 13 UT 18:55-20:00 J. Adee (UK) and later A. Jarwaski (UK) saw 
     Mons Pico to be incredibly bright. Adee reported naked eye visibility, 
     though this does not show up in later CCD images. Jarwaski saw another 
     nearby Mt very bright as well. This has been assigned an ALPO/BAA 
     weight of 1, though I suspect it is just normal for Pico to get quite 
     bright at sunrise.


2024-Jun-14 UT 19:47-20:17 Ill=56% Montes_Apenninus observed by Armitage_J on 2008-4-13

     Patches of brightness seen in the area between craters Aratus and Joy.
     Seemed to the observer to be perhaps slightly brighter than one would
     expect - the observer thought that their observation only barely
     constitured a TLP but decided to send the report in anyway. This
     has been assigned an ALPO/BAA weight of 1.


2024-Jun-14 UT 20:49-21:08 Ill=56% Alphonsus observed by Darling_D on 1990-5-3

     On 1990 May 03 at UT 02:03 D. Darling (Sun Praire, WI, USA, seeing 
     steady) observed a point of light inside Alphonsus just to the north 
     of the central peak, along the "center ridge". It was seen again, half 
     way between the central peak and the noth west rim - along the ridge. 
     All other features were normal. The Cameron 2006 catalog ID=403 and the 
     weight=3. The ALPO/BAA weight=3.


2024-Jun-14 UT 20:50-21:08 Ill=56% Purbach observed by Osawa on 1970-4-14

     Purbach 1970 Apr 14 UT 12:00-14:00 Observed by Osawa (Awajt-Shima, 
     Japan, 8" reflector, x288) "Photos in blue and orange taken. Ill-
     defined obscur. in blue photo in S. part of crater compared with 
     orange. (neg. is so faint it is doubtful. Apollo 13 watch. Similar to 
     Alter's findings in Alphonsus)." NASA catalog weight=2 (low). NASA 
     catalog ID #1250.


2024-Jun-14 UT 21:00-21:08 Ill=56% Mons_Pico observed by Schmidt_J on 1844-4-25

     SW of Pico 1844 Apr 25 UT 20:00? Observed by Schmidt (Athens, 
     Greece, ? refractor) "A bluish glimmering patch of light not 
     quite within the dark side" NASA catalog weight=4. NASA 
     catalog ID #123. ALPO/BAA weight=3.


2024-Jun-15 UT 19:48-20:24 Ill=65% Plato observed by Cragg on 1952-4-4

     Plato 1952 Apr 04 UT 02:45 Observer: T.A.Cragg (Mt Wilson, CA, 
     USA, 31cm reflector, x420, seeing fairly good, transparency 
     fair) - Obscur. of floor (seen a few hours after Wilkins & Moore 
     obs. confirm.?) " - indeed Haas in Stolling Astronomer 2002 Vol 
     45, p29 states that Cragg was amazed to see Plato's floor with 
     absolutely nothing on it! He was able to draw details elsewhere 
     in other features. NASA catalog weight=5. NASA TLP ID No. #551. 
     ALPO/BAA weight=2.


2024-Jun-15 UT 19:48-20:58 Ill=65% Censorinus observed by Iwanoff on 1972-4-22

     On 1972 Apr 22 at UT 17:30-18:15 Iwanoff (60mm refractor, 1000mm focal 
     length,transparency 3 out of 5 and seeing 3 out of 5, located at 53deg 
     5' N and 8deg 45'E) At Censorinus a diffuse bright area, greater than 
     the crater itself, yellow to white in colour. Published in Hilbrecht 
     and Kuveler, Moon and Planets, 30 (1984) p53-61. ALPO/BAA weight=1.


2024-Jun-15 UT 19:48-20:05 Ill=65% Proclus observed by Darling_D on 1988-7-23

     On 1988 Jul 23 at UT03:07 D. Darling (Sun Praire, WI, USA, 12" 
     reflector, x150, seeing = 6/10) discovered that the dark area on the 
     floor of Proclus, seen earlier by UK observers was still present, but 
     less so (?) and the shape changed. When viewed through a green filter 
     it was less distinct. "Change with two other filters. Polarizer gave a 
     circular shape with a knot on SE side & W58 in White." The measured 
     brightness of Proclus was 9 on three sides and 8.5 on its west rim. The 
     floor was 5.5, but the dark spot was 4. Alphonsus, Bullialdus, 
     Copernicus, Eratosthenes, Plato and Ptolemeaus were all normal. The 
     Cameron 2006 catalog ID=332 and the weight=1. The ALPO/BAA weight=1. 


2024-Jun-15 UT 19:48-20:14 Ill=65% Tycho observed by North_G on 1995-3-10

     Tycho observed by G. North (UK) seen to have greyness
     inside parts of its shadow. Confirmed by J.D. and M.C. Cook
     Possibly light scattered of illuminated wall into shadow
     or highland starting to break through the shadow.
     ALPO/BAA weight=2.


2024-Jun-15 UT 20:27-20:58 Ill=65% Kepler observed by Morales on 1884-2-5

     Morales of France?, observed "an illumination" in Kepler on 1884 Feb 05 
     at UT20:00?. The Cameron 1978 catalog ID is 241 and the weight=1. The 
     ALPO/BAA weight=1.


2024-Jun-15 UT 20:36-20:58 Ill=65% W_Limb observed by Fitton on 1974-3-2

     On 1974 Mar 02 at UT 23:00 Fitton (Lancashire, UK, 8.5" reflector, 
     x200, seeing = excellent and transparency = excellent) observed "A fine 
     deep red line seen at 1st contact with B-ring of Saturn. Nothing 
     unusual at A-ring contact. Persisted during occult. of B-ring. It 
     divided into 2 components & space between B-ring & globe cutting ring 
     into 2 disjointed ends persisted till dark limb passed onto globe of 
     Saturn, then a short red line corresponding exactly to chord of planet 
     disk defined by lunar limb. It increased in length as occult. 
     progressed. It suddenly vanished after 3/4 of globe had been occulted. 
     No afterglow at spot on limb, no irreg. at limb could be seen. Obs. 
     eliminates Saturn, telescope, & atmosp. as possible cause. Suggests 
     refraction from tenuous atm. of destructive interference of reflected 
     light from very small angle at limb, or diffraction of Saturn light 
     grazing limb". The Cameron 1978 catalog ID=1389 and weight=1. The 
     ALPO/BAA weight=1.


2024-Jun-15 UT 20:40-20:58 Ill=65% Linne observed by Knott_G on 1867-1-14

     Linne 1867 Jan 14 UT 20:00 Observed by Knott (England?) "White covering 
     had seemingly disappeared, was a dark spot. Definition (seeing?) was 
     poor." NASA catalog weight=1 very low. NASA catalog ID #148.


2024-Jun-19 UT 20:47-21:21 Ill=95% Aristarchus observed by Foley_PW on 1982-11-28 *

     Aristarchus 1982 Nov 28 UTC 23:35-23:55 Observed by Foley (Kent, UK, 
     Antionadi III, Transparency Moderate) - Colouration Seen - Ref: BAA 
     Lunar Section Circular. ALPO/BAA weight=2.


2024-Jun-24 UT 01:35-02:34 Ill=95% Plato observed by Cameron_W on 1971-4-13 *

     Plato 1971 Apr 13 UT 03:30-04:30  W. Cameron (Greenbelt, MD, 
     USA, 36" reflector & 6" grating) "spectrum obtained showed an 
     extra absorption line at 4908+/-4A & possibly another. No other 
     of 6 spectra of other features on the plate show it. No other of 
     20 spectra of Plato, including another on the same nite show it. 
     Further reduction & analysis remain to be done." NASA weight=5. 
     NASA catalog ID=#1291. ALPO/BAA weight=5.


2024-Jun-24 UT 23:21-00:50 Ill=89% Atlas observed by Delmotte on 1954-3-23 *

     Atlas 1954 Mar 23 UTC 00:00? Observed by Delmotte (France?) "Violet 
     tint in crater" NASA catalog weight=3 (average). NASA catalog ID #562.


2024-Jun-25 UT 00:42-02:35 Ill=89% 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.


2024-Jun-25 UT 23:23-01:42 Ill=81% Plato observed by Corvan_P on 1966-8-5 *

     Plato 1966 Aug 05/06 UT 23:37-02:58 Observers: Corvan, Moseley 
     (Armagh, N.Ireland, 10" refractor, x280) and Ringsdore (England, 
     8.5" reflector) "Several red glows at different places at 
     different times. Each lasted a few min. (not confirmed by 
     Ringsdore. Given as 8/4 in MBMW) NASA catalog weight=4, NASA 
     catalog ID=#964. ALPO/BAA weight=2.


2024-Jun-27 UT 01:54-02:36 Ill=71% 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. 


2024-Jun-27 UT 02:20-02:36 Ill=71% 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.


2024-Jun-27 UT 02:20-02:36 Ill=71% 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.


2024-Jun-28 UT 01:31-02:37 Ill=60% Tycho observed by Moseley_R on 1983-8-30

     Tycho 1983Aug30 UT 00:15-00:18 R. Moseley (Coventry, UK, 6" 
     f/10 reflector, x60, transparency very good, seeing III, 
     improving with altitude) attention initially caught by the 
     impression of a rosy colouration along the NW crest and outer 
     wall. For perhaps 2-3 min this persisted - before fading 
     entirely. The observer felt that the cause may have been 
     psysiological - or short-lived spurious colour. However 
     interestingly nearby craters did not show the effect. A 
     sketch was made over a longer time span 00:15-00:40UT. 
     ALPO/BAA weight=1.


2024-Jun-29 UT 01:26-02:37 Ill=48% 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.


2024-Jun-29 UT 01:26-01:31 Ill=48% Earthshine: sporadic meteors

2024-Jun-30 UT 01:31-02:24 Ill=37% Adams observed by Arkhipov on 1978-1-2

     On 1978 Jan 02 at UT23:00? A.V. Arkihpov and A.R. Kharkov (USSR) 
     observed in the terminator region (near Adams?) a flash enclosed by a 
     fuzzy envelope (180x120 arc seconds in size). The TLP faded away over 
     30 seconds. Cameron says that this is the first example of many 
     photographs that registered activity. The Cameron 2006 catalog ID= and 
     weight=5. The ALPO/BAA weight=2.