Search found 299 matches

by oopfan
Sun Sep 16, 2018 5:19 pm
Forum: Gallery
Topic: The Heart Nebula Double Stacking Project
Replies: 9
Views: 56

Re: The Heart Nebula Double Stacking Project

Excellent work, Minos! It is amazing what can be done in light-polluted environments. I can't wait for the colorized version! Also, what's great about narrowband imaging is that it can be done while the Moon is up. We don't get that many clear nights in the NYC area, so narrowband is a great additio...
by oopfan
Sun Sep 16, 2018 5:03 pm
Forum: Tips and Tricks
Topic: New public domain software: astro-dark-frame-library-manager
Replies: 10
Views: 188

Re: New public domain software: astro-dark-frame-library-manager

Minos, When I was taking a course on CCD Photometry with the AAVSO this past February I asked the instructor how he would solve my problem having an uncooled camera. I hadn't yet come up with my idea of a Temperature Logger so I was at a loss of how to capture a 2.5 hour long sequence of a short-per...
by oopfan
Sun Sep 16, 2018 4:34 pm
Forum: Tips and Tricks
Topic: New public domain software: astro-dark-frame-library-manager
Replies: 10
Views: 188

Re: New public domain software: astro-dark-frame-library-manager

Dave,

That is a good idea. I should purposely stack NGC 7635 with mismatched temperature lights and darks to show how the image quality deteriorates!

Thanks,
Brian
by oopfan
Sun Sep 16, 2018 11:48 am
Forum: Tips and Tricks
Topic: New public domain software: astro-dark-frame-library-manager
Replies: 10
Views: 188

Re: New public domain software: astro-dark-frame-library-manager

Captured another 10 hours of darks last night. Here is the updated breakdown by temperature: 60.0F: 28 frames 60.5F: 64 frames 61.0F: 61 frames 61.5F: 231 frames 62.0F: 108 frames 62.5F: 202 frames 63.0F: 125 frames 63.5F: 76 frames 64.0F: 92 frames 64.5F: 79 frames 65.0F: 27 frames 65.5F: 44 frames...
by oopfan
Sun Sep 16, 2018 10:52 am
Forum: Deep Sky Imaging
Topic: sticky exposure length or sticky gain/offset for sky-limited exposures?
Replies: 39
Views: 364

Re: sticky exposure length or sticky gain/offset for sky-limited exposures?

Creepy Crawlers are one big reason to go fully-robotic. That's what I am shooting for. Was the Snail Incident on Long Island? It's been 25 years ago since I lived there. The Island has a huge snail problem. I remember leaving the house in the morning and seeing slime trails all over. Every so often ...
by oopfan
Sun Sep 16, 2018 3:39 am
Forum: Deep Sky Imaging
Topic: sticky exposure length or sticky gain/offset for sky-limited exposures?
Replies: 39
Views: 364

Re: sticky exposure length or sticky gain/offset for sky-limited exposures?

What, no coyotes? Got plenty of them here. They scare the bejeezus out of me. One night there was a pack of them up the hill. I turned on my flashlight and saw a dozen glowing yellow eyes fixated on me.

Brian
by oopfan
Sun Sep 16, 2018 1:51 am
Forum: Deep Sky Imaging
Topic: sticky exposure length or sticky gain/offset for sky-limited exposures?
Replies: 39
Views: 364

Re: sticky exposure length or sticky gain/offset for sky-limited exposures?

Minos,

I am collecting darks again tonight. I'm waiting for the hurricane to pass and the subsequent clear, cool nights to come.

Do the neighborhood kids show any interest? If it was me I'd ask: "Whaddya doin' mister?"

Brian
by oopfan
Sat Sep 15, 2018 4:39 pm
Forum: Tips and Tricks
Topic: New public domain software: astro-dark-frame-library-manager
Replies: 10
Views: 188

Re: New public domain software: astro-dark-frame-library-manager

Last night I collected darks from 9pm to 6am. I am preparing a darks library for SHO. I took an educated guess based on previous experience with Hydrogen Alpha that an exposure of 50 seconds, unity gain of 389, and offset of 30 is ideal. Well, maybe not "ideal" but I will get a stackable print witho...
by oopfan
Sat Sep 15, 2018 4:21 pm
Forum: Deep Sky Imaging
Topic: sticky exposure length or sticky gain/offset for sky-limited exposures?
Replies: 39
Views: 364

Re: sticky exposure length or sticky gain/offset for sky-limited exposures?

Ooooo nice, Minos!

I just captured darks last night from 9pm to 6am. I'll post results under another topic.

BTW, north is to the right in your stack.

Have the neighbors called the police on you yet? :lol:

Brian
by oopfan
Sat Sep 15, 2018 1:40 am
Forum: Deep Sky Imaging
Topic: sticky exposure length or sticky gain/offset for sky-limited exposures?
Replies: 39
Views: 364

Re: sticky exposure length or sticky gain/offset for sky-limited exposures?

You are clear but I am in thin clouds.

Better for me to do Darks tonight.

Brian