A sun dog, solar halo and circumzenithal arc all seen by Martin Crow yesterday around 4.30pm.
Author: WebMistress
Exoplanet TOI-1298b observations by Martin Crow
These are the latest exoplanet observations by Martin Crow.
TOI-1298 b is a gas giant exoplanet that orbits a G-type star TOI -1298 in the constellation of Ursa Minor. Its mass is 0.356 Jupiters. It takes 4.5 days to complete one orbit of its star and is 0.059 AU from its star. TOI-1298 b was discovered by the Transiting Exoplanet Survey Satellite (TESS) observatory, in 2021-09.
Martin wrote ''The observations were done as part of the ExoClock synchronous observations group. This particular transit has a depth of <5 thousandths of a magnitude!! To get useful data for this target would require a telescope diameter of at least 400mm or greater. My telescope at 235mm is too small although the dip is clearly detectable buried in the noise. The aim of the project is to combine three or more data sets from similar sized small instruments taken on the same night to increase the accuracy to that achievable with a bigger telescope. This method will help to make otherwise impossible targets viable for the majority of instruments registered on the ExoClock project.''
Dobsonian Telescope Mount – flat pack
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In this video Simon Dawes builds a Dobsonian telescope mount for Keith that folds flat for transport.
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Diane Clarke’s The Moon & M45 The Pleiades on the 8th March 2022
A lovely image of the Moon 4.1° south of M45 taken on the 8th March 2022 by Diane Clarke.
Diane said ''I had my doubts about capturing this event due to the cloud forecast, but there were breaks starting to appear as 19.00 hrs approached, so I went to set up but there was a strong breeze forcing me to find a sheltered spot to stop my equipment suffering wind blast, the breeze was also making the clouds scud across the sky very quickly. So much so that any breaks in the cloud could disappear as quickly as they appeared the image was taken in one of these short lived break's in the cloud cover.''
Image Details: Camera EOS M50m2 using a 100mm Canon EF Lens.
2.5 sec's @ f5.6, ISO 2000, on a static tripod, with a 2 sec delay to remove camera shake.
Neil Webster’s Moon 7th March 2022
A spectacular image of the Moon by Neil Webster; taken on the 7th March 2022.
Waxing Crescent Moon, 23%, 4.72 days
4 frames stitched (each 44fps x 75, 20% stacked in AutoStakkert) and then processed in PS.
Below is 1 image taken from the above stitch of 4.
For a more detailed view of these images see Neil's flickr page at https://www.flickr.com/photos/137388222@N05
Latest exoplanet observations by Simon Dawes
Three more exoplanets have been observed by Simon for the ExoClock project - KELT 23ab, HAT P 13b and KPS 1b.
22 day old Moon by Simon Dawes
Latest super image by Simon Dawes of a 22 day old Moon taken on the 23rd Feb 2022 in Bexleyheath.
Rosette Nebula in Ha by Kevin Langford
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3Hrs of exposures.
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To see this image in more detail and to see Kevin's other superb astro images check out his flickr page at https://www.flickr.com/photos/77708720@N08/
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Latest deep sky images from Neil Webster
Member Neil Webster has done it again and produced 2 fantastic deep sky images.
The first image is of NGC 2264 Cone Nebula Xmas Tree Cluster. Taken on Feb 24th 2022.
AA115mm APO, EQ6 R, ZWO ASI294MC Pro, Orion 50mm Guide Scope, ZWO ASI290MM, Optolong L Enhance Filter.
63 x 240s Lights, 15 x Darks, 50 x Flats/Bias
St Marys Platt, Kent
This is a vast star forming region with H gas excited by young O, B stars.
The second image is of NGC 2024 "Flame Nebula", IC 434, B33 "Horsehead ", and NGC 2023, Alnitak. Taken on the 26th Feb 2022
AA115mm APO, EQ6 R, ZWO ASI294MC, Orion 50mm guide scope, ZWO ASI290MM
APT, PHD, Nebulosity, Photoshop
56 x 240s Lights, 15 x Darks, 50 x Flats/Bias
St Marys Platt, Kent.
Check out Neil's flickr page at https://www.flickr.com/photos/137388222@N05/ for a more detailed view of these images and the many others he has done!
Exoplanet Qatar 8b
Another exoplanet transit observed by Simon Dawes of Qatar 8b for the ExoClock project. Qatar-8b is just over a third of Jupiter's mass (0.37) and is considered a "hot Saturn." It takes less than four days to orbit its star, which is about 900 light-years from Earth.
Simon said it was a tricky one to process, but the result came out very well with a depth almost identical to the published data. Well done Simon.
