C/2019 Y4 (ATLAS) Animation

[stevewanstall]

Trials and tribulations of trying to make a video of a comet. This is the second time I have tried this, the first time with a CMOS camera. Learning points so far:

1. Just stick to luminance.

2. Don't try this on a night with intermittent cloud!

3. Don't dither between  subs.

Anyway, for better or worse, here it is:

[Martin Meredith]

Very impressive! What sub length were you using? Seems like it is zipping along quite rapidly.

Martin

[happy-kat]

How long overall dose that cover? It's speedy moving there. Love these animations

[stevewanstall]

14 hours ago, Martin Meredith said:

Very impressive! What sub length were you using? Seems like it is zipping along quite rapidly.

Martin

The camera is a ZWO ASI1600MM  running at gain of 139 and exposures of 114 s. I was amazed how much movement there was between subs; I had to delete a few because of clouds, which is one reasons (besides the lack of alignment) for it being so jumpy.

[stevewanstall]

13 hours ago, happy-kat said:

How long overall dose that cover? It's speedy moving there. Love these animations

It covers just under 3 hours in total, but as I said I had to delete quite few  frames because of clouds.

[City9Town0]

I dithered, but then rather lazily didn't remove the 'fireflies!!!!'. I presume that they are hot pixels...

Fifty-two 75 second images.

[stevewanstall]

The 'fireflies' could be UFO's... 😜

[City9Town0]

Steve

They fly pretty good formation!