Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Contains:  NGC 7023
Getting plate-solving status, please wait...
Iris Nebula in LRGB, NGC 7023 - 17hr stack, 





    
        

            Vikas Sahota
Iris Nebula in LRGB, NGC 7023 - 17hr stack

Iris Nebula in LRGB, NGC 7023 - 17hr stack

Acquisition type: Electronically-Assisted Astronomy (EAA)

Technical card

Resolution: 2526x2435

Dates:May 12, 2019May 13, 2019May 15, 2019May 16, 2019May 21, 2019June 13, 2019June 23, 2019

Frames:
Baader B 2": 30x60" ISO3810 -15C bin 1x1
Baader B 2": 54x100" (gain: 100.00) -15C bin 1x1
Baader B 2": 12x300" (gain: 787.00) -15C bin 1x1
Baader G 2": 30x60" ISO3810 -15C bin 1x1
Baader G 2": 36x100" (gain: 100.00) -15C bin 1x1
Baader G 2": 12x300" (gain: 787.00) -15C bin 1x1
Skytech LPRO Max: 141x30" ISO3810 -15C bin 1x1
Skytech LPRO Max: 98x85" (gain: 100.00) -15C bin 1x1
Skytech LPRO Max: 88x130" (gain: 381.00) -15C bin 1x1
Skytech LPRO Max: 36x300" (gain: 787.00) -15C bin 1x1
Baader R 2": 20x90" ISO3810 -15C bin 1x1
Baader R 2": 24x150" (gain: 100.00) -15C bin 1x1
Baader R 2": 12x300" (gain: 787.00) -15C bin 1x1

Integration: 17.7 hours

Darks: ~51

Flats: ~70

Bias: ~261

Avg. Moon age: 12.70 days

Avg. Moon phase: 77.76%

Bortle Dark-Sky Scale: 6.00

Astrometry.net job: 2764609

RA center: 315.339 degrees

DEC center: 68.215 degrees

Pixel scale: 1.394 arcsec/pixel

Orientation: 195.788 degrees

Field radius: 0.679 degrees

Locations: Backyard, Slough, Berkshire, United Kingdom

Data source: Backyard

Description

I had made several attempts on the Iris nebula back in May, and back to it a few days ago. Each effort yielded something but not enough. I decided to try and stack all the various sessions together, bit of a challenge but interesting if it worked. Early sessions were saved out in png so had to go converting lots of lights, flats, darks, bias, sifting through the subs and getting everything together to feed into AstroPixel Processor.
Its definately not optimal by any means, between the sessions things changed and I didnt intend to stack this lot together when I set out :)
So its a mix if different camera gains, with/without focal reducer, slightly different imaging train, filters, as things evolved.

Integration : 566 light frames, 17.6 hours
Luminance : Skytech LPRO , 9.6hours
Baader-R or LPRO + Baader-R : 2.5hours
Baader-G or LPRO + Baader-G : 2.5hours
Baader-B or LPRO + Baader-B : 3hours

Comments

Author

gassman
Vikas Sahota
License: None (All rights reserved)
370
Like

Sky plot

Sky plot

Histogram

Iris Nebula in LRGB, NGC 7023 - 17hr stack, 





    
        

            Vikas Sahota