Lunar Observing Schedule for: Estonia - Tallinn



Produced by the Department of Physics at Aberystwyth University, UK
Ill is percentage illumination of the Moon


2025-Dec-01 UT 14:58-15:32 Ill=84% Aristarchus

     ALPO Request: On 2013 Apr 22 Paul Zellor noticed that the two 
     closely spaced NW dark bands in Aristarchus had some (non-blue) 
     color to them. Can we confirm his observation of natural colour 
     here? Ideally you should be using a telescope of 10" aperture, or 
     larger. Please send any high resolution color images, detailed 
     sketches, or visual descriptions to: a t c @ a b e r . a c. u k .


2025-Dec-03 UT 01:48-01:54 Ill=94% Babbage

     BAA Request: On 1974 Sep 29 Chris Lord (UK) may have detected 
     a hint of colour inside this crater by using Wratten 25 (red) 
     and 44a (blue-green) filters. Please try to observe visually 
     with similar colour filters and see in which the floor looks 
     darker. Alternatively use a colour camera and see if you can 
     detect colour this way. The minimu  size telescope to use for 
     this should be of aperture 15cm. Please send any high 
     resolution images, detailed sketches, or visual descriptions 
     to: 
     a t c @ a b e r . a c. u k .


2025-Dec-04 UT 00:27-01:25 Ill=98% Plato

     BAA Request: Two observers have reported colour on the rim 
     around this colongitude, once in 1938, and again in 2013. Please 
     take a look and report what you see, and where on the rim. 
     Please send any high resolution images, detailed sketches, or 
     visual descriptions to: a t c @ a b e r . a c. u k .


2025-Dec-07 UT 19:04-20:26 Ill=88% Torricelli_B

     BAA Request: Sketches or images needed of Toricelli B - of 
     sufficient resolution to reveal shadow. All observations, 
     including sketches or images shouild be emailed to: 
     a t c @ a b e r . a c. u k .


2025-Dec-08 UT 04:22-22:44 Ill=86% Cyrillus

     BAA Request: Cyrillus. There is a small white craterlet just 
     north of the three central peaks. We are interested to receive 
     high resolution images of this in order to find out at what 
     selenographic colongitude, in the lunar evening, that it loses 
     it's white spot appearence. Please use scopes largher than 6 
     inches in diameter. 
     Please email these to: a t c @ a b e r . a c . u k


2025-Dec-12 UT 01:04-06:16 Ill=46% Earthshine: Geminids: ZHR>100 vel=34km/s & Coma Berencides: ZHR=3 vel=64km/s

     These can only be observed using low-light level cameras running at 25 frames per sec,
     or faster, and capable of recording 9th or 10th magnitude stars in real time.
     Dates/UTs of observing runs, or detections of impacts, should be emailed to:
     ALPO - email: c u d n i k @ s b c g l o b a l . n e t
     BAA - email: a t c @ a b e r . a c . u k
     UAI - email: a m . 5 4 8 5 2 @ g m a i l . c o m


2025-Dec-13 UT 01:58-06:17 Ill=36% Earthshine: Geminids: ZHR>100 vel=34km/s & Coma Berencides: ZHR=3 vel=64km/s

     These can only be observed using low-light level cameras running at 25 frames per sec,
     or faster, and capable of recording 9th or 10th magnitude stars in real time.
     Dates/UTs of observing runs, or detections of impacts, should be emailed to:
     ALPO - email: c u d n i k @ s b c g l o b a l . n e t
     BAA - email: a t c @ a b e r . a c . u k
     UAI - email: a m . 5 4 8 5 2 @ g m a i l . c o m


2025-Dec-14 UT 02:55-06:18 Ill=27% Earthshine: Geminids: ZHR>100 vel=34km/s & Coma Berencides: ZHR=3 vel=64km/s

     These can only be observed using low-light level cameras running at 25 frames per sec,
     or faster, and capable of recording 9th or 10th magnitude stars in real time.
     Dates/UTs of observing runs, or detections of impacts, should be emailed to:
     ALPO - email: c u d n i k @ s b c g l o b a l . n e t
     BAA - email: a t c @ a b e r . a c . u k
     UAI - email: a m . 5 4 8 5 2 @ g m a i l . c o m


2025-Dec-15 UT 03:56-06:19 Ill=19% Earthshine: Geminids: ZHR>100 vel=34km/s & Coma Berencides: ZHR=3 vel=64km/s

     These can only be observed using low-light level cameras running at 25 frames per sec,
     or faster, and capable of recording 9th or 10th magnitude stars in real time.
     Dates/UTs of observing runs, or detections of impacts, should be emailed to:
     ALPO - email: c u d n i k @ s b c g l o b a l . n e t
     BAA - email: a t c @ a b e r . a c . u k
     UAI - email: a m . 5 4 8 5 2 @ g m a i l . c o m


2025-Dec-16 UT 05:01-06:20 Ill=13% Earthshine: Geminids: ZHR>100 vel=34km/s & Coma Berencides: ZHR=3 vel=64km/s

     These can only be observed using low-light level cameras running at 25 frames per sec,
     or faster, and capable of recording 9th or 10th magnitude stars in real time.
     Dates/UTs of observing runs, or detections of impacts, should be emailed to:
     ALPO - email: c u d n i k @ s b c g l o b a l . n e t
     BAA - email: a t c @ a b e r . a c . u k
     UAI - email: a m . 5 4 8 5 2 @ g m a i l . c o m


2025-Dec-25 UT 14:20-15:31 Ill=28% Earthshine: sporadic meteors

     These can only be observed using low-light level cameras running at 25 frames per sec,
     or faster, and capable of recording 9th or 10th magnitude stars in real time.
     Dates/UTs of observing runs, or detections of impacts, should be emailed to:
     ALPO - email: c u d n i k @ s b c g l o b a l . n e t
     BAA - email: a t c @ a b e r . a c . u k
     UAI - email: a m . 5 4 8 5 2 @ g m a i l . c o m


2025-Dec-26 UT 16:01-17:59 Ill=38% Montes_Caucasus

     Monte Caucasus: "shadow face" silhouette Clair-Obscur effect. 
     Clair-Obscur effects have no scientific importance just tricks 
     of the light that make us think we see something like 
     a letter of the alphabet or a shape or face. Clair-Obscur 
     effects are scientifically useless to observe. However, if 
     you want to be thrilled, or obtain an image to impress someone 
     then give them a go. This effect on the southern end of Montes 
     Caucuses looks like the side silhouette of a cartoon human face. 
     We are still slightly undertain about the precise colongitude 
     range, so if you do not see the face, try again later. If you 
     do observe, or image this, by all means send your observation 
     into ALPO or the BAA, but we probably won't publish, but will 
     nevertheless retain in our archives, just in case features 
     elsewhere in the image are of interest to future researchers.
     Note that we have some uncertainty in the colongitude range 
     - so if you don't see it, please tells us the date and UT so 
     we can make some improvements in the predictions.


2025-Dec-26 UT 14:20-18:10 Ill=38% Earthshine: sporadic meteors

     These can only be observed using low-light level cameras running at 25 frames per sec,
     or faster, and capable of recording 9th or 10th magnitude stars in real time.
     Dates/UTs of observing runs, or detections of impacts, should be emailed to:
     ALPO - email: c u d n i k @ s b c g l o b a l . n e t
     BAA - email: a t c @ a b e r . a c . u k
     UAI - email: a m . 5 4 8 5 2 @ g m a i l . c o m


2025-Dec-27 UT 13:15-15:18 Ill=47% Montes_Caucasus

     Monte Caucasus: "shadow face" silhouette Clair-Obscur effect. 
     Clair-Obscur effects have no scientific importance just tricks 
     of the light that make us think we see something like 
     a letter of the alphabet or a shape or face. Clair-Obscur 
     effects are scientifically useless to observe. However, if 
     you want to be thrilled, or obtain an image to impress someone 
     then give them a go. This effect on the southern end of Montes 
     Caucuses looks like the side silhouette of a cartoon human face. 
     We are still slightly undertain about the precise colongitude 
     range, so if you do not see the face, try again later. If you 
     do observe, or image this, by all means send your observation 
     into ALPO or the BAA, but we probably won't publish, but will 
     nevertheless retain in our archives, just in case features 
     elsewhere in the image are of interest to future researchers.
     Note that we have some uncertainty in the colongitude range 
     - so if you don't see it, please tells us the date and UT so 
     we can make some improvements in the predictions.


2025-Dec-27 UT 14:21-20:00 Ill=50% Earthshine: sporadic meteors

     These can only be observed using low-light level cameras running at 25 frames per sec,
     or faster, and capable of recording 9th or 10th magnitude stars in real time.
     Dates/UTs of observing runs, or detections of impacts, should be emailed to:
     ALPO - email: c u d n i k @ s b c g l o b a l . n e t
     BAA - email: a t c @ a b e r . a c . u k
     UAI - email: a m . 5 4 8 5 2 @ g m a i l . c o m


2025-Dec-29 UT 16:42-18:40 Ill=71% Montes_Jura

     "Jewelled Handle": in Montes Jura - this is a Clair-Obscur effect. Its
     an illuminated arc. Clair-Obscur have no scientific importance and are 
     just tricks of the light that make us think we see something like a 
     letter of the alphabet or a shape or face. Clair-Obscur effects are 
     scientifically pointless to observe. However, if you want to be 
     thrilled, or obtain an image to impress someone then give them a go. 
     If you do observe, or image this, by all means send your observation 
     into ALPO or the BAA, but we probably won't publish, but will 
     nevertheless retain in our archives, just in case features elsewhere 
     in the image are of interest to future researchers.


2025-Dec-29 UT 18:41-20:38 Ill=71% Bullialdus

     BAA Request: Bullialdus. We are trying to replicate, 
     using modern day images, a sketch in Plate II in BAA The Moon 
     from published: 1950 Jun Vol 1, No. 1. It is for a sketch made 
     by L.F. Ball from 1949 Mar 09. The original sketch was 
     made with an 10" telescope. Please send any images to: 
     a t c @ a b e r . a c. u k .


2025-Dec-30 UT 17:37-19:34 Ill=81% Promontorium_Heraclides

     Cassini's Moon Maiden at Promontorium Heraclides - this is a Clair-Obscur effect. 
     Clair-Obscur have no scientific importance and are just tricks of the 
     light that make us think we see something like a letter of the alphabet 
     or a shape or face. Clair-Obscur effects are scientifically pointless 
     to observe. However, if you want to be thrilled, or obtain an image to 
     impress someone then give them a go. If you do observe, or image this, 
     by all means send your observation into ALPO or the BAA, but we 
     probably won't publish, but will nevertheless retain in our archives, 
     just in case features elsewhere in the image are of interest to 
     future researchers.