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Author Topic: M51 Whirlpool Galaxy  (Read 4125 times)

Sargs

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M51 Whirlpool Galaxy
« on: April 29, 2016, 02:37:39 PM »
Hi all,

The British weather hates astronomy so I haven't been able to do as much as I'd like, but I recently got a picture of M51 the Whirlpool Galaxy that I'm quite happy with. Atik One 6.0 + OAG kit, 10x30sec exposures each RGB, 20x30sec Luminance. Darks, Flats and Bias frames to taste. Telescope is a William Optics FLT98. So much to learn...

« Last Edit: April 29, 2016, 02:39:58 PM by Sargs »

Jo

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Re: M51 Whirlpool Galaxy
« Reply #1 on: May 03, 2016, 10:56:20 AM »
A lot to learn, but it looks like you're well on the way! The core in that image is lovely, and you've got nice, tight stars.

Is there any reason you're sticking to such short exposures?

Sargs

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Re: M51 Whirlpool Galaxy
« Reply #2 on: May 03, 2016, 04:06:17 PM »
No good reason for it. I was mostly playing with a new electric focuser and only had an hour or so to do imaging. Given a choice between few long exposures and many short ones, I decided to try many short ones. In the past, I've done five minute exposures with no problem, but I never seem to have enough frames to get a decent reduction in the level of noise.




Jo

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Re: M51 Whirlpool Galaxy
« Reply #3 on: May 04, 2016, 10:03:17 AM »
That's fair enough, especially with the weather we've had and having a play. Look forward to seeing some more!

PAB64

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Re: M51 Whirlpool Galaxy
« Reply #4 on: June 01, 2016, 06:25:33 AM »
Short or not. That's still a good CCD picture of the "Whirlpool Galaxy"
Especially when you consider the small aperture that the WO FLT 98 has.
Paul.

patthehorse

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Re: M51 Whirlpool Galaxy
« Reply #5 on: June 02, 2016, 09:02:04 PM »
A lot in there for short subs.