Bolton Astronomical Society

Three comets in two nights!
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Author:  rwilkinson [ Sat Mar 25, 2017 9:28 am ]
Post subject:  Three comets in two nights!

On Thursday evening I tried to capture C/2016 VZ18 (PanSTARRS), but although I got a lot of images, it's so faint and fast-moving that I wasn't able to pick it out from among the trails of the background stars.
But last night I was much more successful. I first aimed at 41P/Tuttle-Giacobinni-Kresak, which was very high up in Ursa Major. This is also moving quite quiclkly at the moment, but is much brighter, although large and diffuse, so I used my StarWave 80ED 'scope and HX916 camera (which give a much larger field of view than the C8/MX716 combination.
File comment: Comet 41P on 24-Mar. 78x 90-sec with HX916 on 80ED at f/4.7
41p_24mar.png [ 247.65 KiB | Viewed 2232 times ]

Then by 10:30pm another target was just appearing above the trees: C/2015 V2 (Johnson) (in Hercules). This is fainter, but very slow-moving and is showing a tail at last:
File comment: Comet Johnson on 24-Mar. 18x 90-sec with HX916 on 80ED at f/4.7
c2015v2_24mar.png [ 128.12 KiB | Viewed 2232 times ]

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