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
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
BAA Request: On 2011 Jan 21 Nigel Longshaw suspected the eastern side of Geminus (on the border of the crater filled shadow and the eastern illuminated rim) had a colouration to it. This extended for a short distance from the floor shadow into the illuminated rim width and spanned from the north to the south of the crater. For a comparison, Cleomedes was checked but nothing unusual was noticed in its shadow. The observer notes that Elger also saw colour here too. Its probable that some natural surface colouration was observed, but this needs to be checked out? Telescopes of aperture 4" or larger are needed to observe this effect. If you have a refractor, then try using this, otherwise a reflector will do just as well. Please send any sketches, images, or visual descriptions to: a t c @ a b e r . a c. u k .
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
ALPO Request: On 2013 Sep 01 a lunar astrophotographer, Maximilian Teodorescu, imaged a dark dusky cicular area to the SE of Hermann D. The odd thing is that simulations show that there should not be a circular low lying depression here. It maybe a dust ring on his camera, but it did feature in the Lunar Picture of the nDay (LPO) web site on 2013 Sep 13. Please send any high resolution images, detailed scetches, or visual descriptions to: a t c @ a b e r . a c. u k .
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
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
BAA Request: Please try to image the Moon as a very thin crescent, tryimg to detect Earthshine. A good telephoto lens will do on a DSLR, or a camera on a small scope. We are attempting to monitor the brightness of the edge of the earthshine limb in order to follow up a project suggested by Dr Martin Hoffmann at the 2017 EPSC Conference in Riga, Latvia. This is quite a challenging project due to the sky brightness and the low altitude of the Moon. Please be very careful around sunrise so as not to be observing once the Sun has risen. Do not bother observing if the sky conditions are hazy. Any images should be emailed to: a t c @ a b e r . a c . u k
BAA Request: Please try to image the Moon as a very thin crescent, tryimg to detect Earthshine. A good telephoto lens will do on a DSLR, or a camera on a small scope. We are attempting to monitor the brightness of the edge of the earthshine limb in order to follow up a project suggested by Dr Martin Hoffmann at the 2017 EPSC Conference in Riga, Latvia. This is quite a challenging project due to the sky brightness and the low altitude of the Moon. Please do not attempt if the Sun is still above the horizon. Do not bother observing if the sky conditions are hazy. Any images should be emailed to: a t c @ a b e r . a c . u k
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
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 morning, that it starts to show 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
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
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
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
ALPO Request: On 2011 Dec 31 Raffaello Braga found the north rim or Torricelli to be very bright at the start of the observing session but dimmed considerably later. He was not sure on the normal appearance of this crater, hence why it is really imortant to establish this by re-observing under similar illumination. Minimum telescope aperture required: 3", and try to use a refractor if possible. Please send any high resolution images, detailed scetches, or visual descriptions to: a t c @ a b e r . a c. u k .
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
ALPO Request: On 2010 Apr 20 Ivan Bryukhanov observed an orange-brown tint a little to the west of Zollner and Kant craters. A refractor would be suitable for this, although any sized scope larger than 4.5" aperture would suffice. Its possible that this might have been related to the low altitude of the Moon, therefore observing with the Moon down to about 15-5deg above the horizon is acceptable for this to see if we can replicate colour here. Please send any images, detailed sketches, or visual descriptions to: a t c @ a b e r . a c. u k
BAA Request: Examine the floor visually, sketch, or image to show the progression of the shadow spires across floor and the emergence of the centre of the floor into sunlight. If observing visually, how would you describe the appearance of the central lit area on the floor? If imaging, do a time lapse e.g. 1 image per minute to show the progression of the shadow spires. We are asking for these observations following an observation by P. Shepherdson (BAA) on 2020 Feb 01 UT 19:40-19:50 who commented on an unusual appearance to the floor. However an image supplied suggests it is just shadow spires. Nevertheless we would like to check at a repeat illumination. As another challenge, we have seen bright stripes appear between shadow spires on the floor but these fade in brightness after the shadow spires recede. See if you can capture these on an image sequence and help us learn more about what is causing this effect.Any sketches, visual descriptions, or images taken, should be emailed to: a t c @ a b e r . a c. u k
BAA Request: Please image t or sketch this area, looking especially for two bright points of light on the edge of the termiator. A scope of at least 4" aperture is needed for this observation. All images or sketches should be emailed to: a t c @ a b e r . a c. u k
ALPO Request: This request comes about because of two observations. Firstly on 2009 Nov 25 Paul Abel and others detected some colour on the inner west illumntated slopes of this crater. No similar colour existed elsewhere. On 2012 Aug 25 Charles Galdies imaged this crater and detected a similar colour, approximately in the same location, though he also imaged colour elsewhere. It is important to replicate this observation to see if it was natural surface colour, atmospheric spectral dispersion, or some effect in the camera that Charles was using, namely a Philips SPC 900NC camera. The minimum sized telescope to be used would ideally a 8" reflector. Please send any high resolution images, detailed sketches, or visual descriptions to: a t c @ a b e r . a c. u k .
BAA Request: Some astronomers have occasionally reported seeing a pseudo peak on the floor of this crater. However there is no central peak! Please therefore image or sketch the floor, looking for anything near the centre of the crater resembling a light spot, or some highland emerging from the shadow. All reports should be emailed to: a t c @ a b e r . a c . u k
BAA Request: On 2010 Apr 27 Peter Grego noticed a craterlet just to the east of Briggs (this is normal), but also an E-W trending lineament or wrinkle ridge that does not show up on NASA LAC charts - it is this we wish to confirm by re- observing under similar seleonographic colongitudes. An 8" or larger telecope is required, Please send any high resolution images, detailed sketches, or visual descriptions to: a t c @ a b e r . a c. u k .
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 .
ALPO Request: Please take images of the Full Moon, but make sure you under expose as we want to avoid bright ray craters like Aristarchus, Tycho, Proclus etc from saturating. The purpose behind this is we want to compare with images of Earthshine which are essentially zero phase illumination images, like at Full Moon. There have been reports in the past that Aristarchus varies greatly in brightness compared to other features. David Darling (a past TLP coordinator) has suggested this was simply due to libration effects, i.e. viewing angles, so we would naturally like to test this theory out. Also if you have any past images of close to Full Moon, please send these in too if the above mentioned craters are not saturated. Pretty much any size telescope can be used to take these images so long as we can clearly see the above craters. Obviously do not attempt this if the sky is cloudy or hazy. Observations will be presented in the "Lunar Observer" - a monthly publication of the Lunar Section of ALPO. All reports should be emailed to: a t c @ a b e r . a c . uk
BAA Request: On 2012 Jan 09 UT 21:01-21:08 Hahn crater was imaged by Nick Hazel (Beverley, Yorkshire, UK, Nikon D7000 with 70-300 zoom at max, with 2x teleconverter, at f9, 1/320 sec, ISO 400 – tripod mounted, mirror up), A series of images were taken. The 21:06 one showed a grey column cutting across the central floor of the crater from the west and then bisecting the eastern rim. All detail inside is completely invisble. Some (but not all) of the other images showed a more blurred view of this feature. It is possible that this was a seeing ripple effect, or just the natural appearance of shadings on the Moon at this time, however we would like to capture images of this area to be sure. Small aperture telescopes or telephoto lens similar to Nick's can be used. Try switching the tracking off to see what effect motion blur has during the exposure - to see4 if this replicates the effect. Please send any images you take to: a t c @ a b e r . a c . u k
BAA Request: Do the appearance of the bands on the crater rim vary (blur) in appearance over time? Compare them to bands in other craters e.g. Herodotus, Kepler, Copernicus. If you do see any variations in sharpness, see how it relates to atmospheric seeing condtions. All images or sketches should be emailed to: a t c @ a b e r . a c. u k
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
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
BAA Request: Its around this Co-Longitude that some observers have reported seeing an Ashen Light effect on the shadowed floor of Plato, caused by scattered light off of an illuminated peak on the rim. Please have a go either visually, or with long exposure time lapse imagery to see if you can pick up the development of this weak illumination effect on the floor. Please send any sketches or images to: a t c @ a b e r . a c. u k .
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