ALPO Request: Please monitor the area of shadow east of the central peak of Tycho. We are trying to see of a neckless V shaped formation occurs and how it forms over time as the Sun rises. Both visual and CCD imaging would be useful and people with scopes larger than than 6" aperture shouild be used. Any sketches or 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
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
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: We have reports of details visible in the shadows of Apianus and Faraday craters. Just curous to see if this effect repeats. Please take some exposures of sufficient length to be able to see shadings in the shadows of these, and neighboring, craters. Do not use excessive sharpening on the images. Please email these to: a t c @ a b e r . a c . u k
BAA Request: Eudoxus - please try to image the interior of this crater. We are trying to explain an observation from Meudon Observatory in France made in 1877 for which a fine line of light was seen acress the crater in an E-W direction. Please send any images to: a t c @ a b e r . a c. u k .
BAA Request: Monitor the central peak for brightness changes. Compare against the central peak of Arzachel, and other craters with central peaks. If brightness changes do occur, do they change with atmospheric seeing conditions? A small aperture scope can be used for this study with a magnification in the order of x120. Any brightness measurements or image sequences made should be emailed to: a t c @ a b e r . a c . u k
ALPO Request: Try viewing the central peak through a red and blue filter e.g. Wratten 25a and 38, and comparing the brightness to the of the eastern sunlit rim. Does the size of the central peak change between filters? If you do detect colour here, obviously check for colour on other central peaks. If taking colour images, make sure that you do nderexpose slightly so as to avoid saturating the central peak. All visual reports, sketches or colour images should be emailed to: t o n y . c o o k @ a l p o - a s t r o n o m y . o r g
BAA Request: How dark is the floor of Plato compared to other dark areas on the Moon e.g. nearby Mare. Can you see central craterlet on the floor? Is the floor of Plato brighter or darker through a green filter than in other colours? Alternatvely just take a colour image. Mimimum sized telescope aperture: 6 inches.Please send any sketches, monochrome images, or visual reports to: a t c @ a b e r . a c. u k .
ALPO Request: On 1989 Feb 17 David Darling made an observation about the brightness of the east and west walls of Proclus. We would like you to image, sketch, or just visually note which is brighter, the east or the west rim of this crater? Telescopes of aperture 6 inche or larger should be used. Please send any observation you make 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
ALPO Request: The area to look at here is to the west of Herodotus, near the terminus of Valles Schroteri, where you should be able to see four spots of light (just east of the terminator). Are these better visible in red or blue light? The original observation was made using Wratten 38A and Wratten 25 filters, but any blue and red filters will do, or indeed a colour camera. Do these spots fade over time? If so, in what order? If imaging, then time lapse imaging would be useful here. Minimum aperture telescope to use should be a 6", and if possible a refractor - aim to use magnifications of around 114x to 228x. Any visual descriptions, sketches of images should be emailed 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 .
BAA Request. Please observe visually or image this crater in colour to see if you can detect any colour on part of the floor. Please email any observations 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