Search found 201 matches

by mAnKiNd
Wed Feb 26, 2020 12:15 am
Forum: Gallery
Topic: M81 Bode's Galaxy in 11.6 hours
Replies: 16
Views: 104

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: 16
Views: 104

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: 16
Views: 104

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: 16
Views: 104

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: 16
Views: 104

Re: M81 Bode's Galaxy in 11.6 hours

Superb!
by mAnKiNd
Sat Feb 22, 2020 5:31 pm
Forum: Gallery
Topic: What can be done with just ~25 mins of data
Replies: 4
Views: 99

Re: What can be done with just ~25 mins of data

Looks great, have fun!
by mAnKiNd
Fri Feb 21, 2020 12:48 am
Forum: Gallery
Topic: February 2020
Replies: 8
Views: 172

Re: February 2020

Thanks Brian, good luck to you too buddy.
by mAnKiNd
Wed Feb 19, 2020 1:15 pm
Forum: Gallery
Topic: February 2020
Replies: 8
Views: 172

Re: February 2020

Thanks Brian, appreciate it. I have a series of clear nights coming up and I'm debating whether to shoot more of M97 or switch to a new target. I'm limited however, to mostly the North Eastern part of the sky, due to surrounding apartment blocks, and there aren't many other nebulas up there right no...
by mAnKiNd
Mon Feb 17, 2020 2:30 pm
Forum: Gallery
Topic: February 2020
Replies: 8
Views: 172

Re: February 2020

I'm getting a coma corrector though, as the longer horizontal aspect of the sensor is picking up the coma in the stars and I don't have much of a field of view to begin with in order to crop them out.
by mAnKiNd
Mon Feb 17, 2020 12:44 pm
Forum: Gallery
Topic: February 2020
Replies: 8
Views: 172

Re: February 2020

Hi Dave,

I used Pixinsight to create the master light and then again Pixinsight to apply that master as a luminance layer over the previous data. From there on out, it was jumping between Pixinsight and Photoshop. I really liked how the red, green and blues came out in the nebula.

Cheers,
Minos