Search found 256 matches

by mAnKiNd
Wed Mar 04, 2020 1:19 pm
Forum: Gallery
Topic: M42 chronicles
Replies: 40
Views: 5525

Re: M42 chronicles

Great work Dave!

Minos
by mAnKiNd
Wed Mar 04, 2020 1:18 pm
Forum: Gallery
Topic: What a difference two years makes
Replies: 5
Views: 232

Re: What a difference two years makes

Hey Brian, sorry for the late reply, that's great work!

Minos
by mAnKiNd
Sat Feb 29, 2020 4:23 pm
Forum: Gallery
Topic: What a difference two years makes
Replies: 5
Views: 232

Re: What a difference two years makes

"Evolution is a tinkerer." Francois Jacob

Well done Brian, keep them coming :)
by mAnKiNd
Wed Feb 26, 2020 12:15 am
Forum: Gallery
Topic: M81 Bode's Galaxy in 11.6 hours
Replies: 17
Views: 418

Re: M81 Bode's Galaxy in 11.6 hours

Cool, we can start a thread on it when one of us eventually gets one...just keep in mind that acquiring astrotoys takes time with me :)
by mAnKiNd
Wed Feb 26, 2020 12:02 am
Forum: Gallery
Topic: M81 Bode's Galaxy in 11.6 hours
Replies: 17
Views: 418

Re: M81 Bode's Galaxy in 11.6 hours

Brian, this is a great adaptation you've surmised for calculating SNR according to where you're pointing in the sky. With regards to differential bortle scales depending on compass and altitude pointing, I agree with this conundrum. I don't think it accurate to account for a singular bortle scale va...
by mAnKiNd
Tue Feb 25, 2020 5:01 am
Forum: Gallery
Topic: M81 Bode's Galaxy in 11.6 hours
Replies: 17
Views: 418

Re: M81 Bode's Galaxy in 11.6 hours

That's great Brian and as always, thank you kindly for the comprehensive answer. I stratified your corrected background ADU values into two groups: 8-10pm and 10-12pm and applied an unpaired, parametric t-test between the two and found a significant difference between the two groups. Here is the rep...
by mAnKiNd
Tue Feb 25, 2020 12:09 am
Forum: Gallery
Topic: M81 Bode's Galaxy in 11.6 hours
Replies: 17
Views: 418

Re: M81 Bode's Galaxy in 11.6 hours

Brian, Did you acquire the L channel from 730pm to 1030pm? If so, could you inspect individual L frames and find out if you had an increase in background ADU over time, especially between 730 and 830pm, when you also mention that you acquired the Red channel during light polluting commuters. If ther...
by mAnKiNd
Mon Feb 24, 2020 10:53 pm
Forum: Gallery
Topic: M81 Bode's Galaxy in 11.6 hours
Replies: 17
Views: 418

Re: M81 Bode's Galaxy in 11.6 hours

Superb!