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 2403
Getting plate-solving status, please wait...
NGC 2403, 





    
        

            Chris Sullivan
NGC 2403

NGC 2403

Technical card

Resolution: 3000x2100

Dates:Nov. 4, 2018Nov. 7, 2018Nov. 9, 2018Nov. 30, 2018Dec. 1, 2018Dec. 4, 2018Dec. 5, 2018Dec. 6, 2018

Frames:
Blue: 117x150" (gain: 139.00)
Green: 112x150" (gain: 139.00)
ZWO H-alpha 7nm: 80x300" (gain: 139.00)
Baader IR-Cut Moon & Skyglow Neodymium: 350x150" (gain: 139.00)
ZWO Red: 154x150" (gain: 139.00)

Integration: 37.2 hours

Avg. Moon age: 23.39 days

Avg. Moon phase: 13.27%

Bortle Dark-Sky Scale: 8.00

Astrometry.net job: 2720616

RA center: 114.218 degrees

DEC center: 65.610 degrees

Pixel scale: 0.913 arcsec/pixel

Orientation: 179.481 degrees

Field radius: 0.465 degrees

Locations: Home Roof (Bortle 7-8 / Est. Sky Quality: 18.53), Springfield, PA, United States

Data source: Backyard

Description

I only meant to give this 20 hours, but I traveled to Germany after doing some capture and didn't keep track of what I captured - at all, apparently. I found this one really hard to process for whatever reason - it still isn't coming out like I hoped it would. My data look good, so I'll probably give it another shot at a later date.

Comments

Author

Chris-PA
Chris Sullivan
License: None (All rights reserved)
5044
Like

Revisions

  • NGC 2403, 





    
        

            Chris Sullivan
    Original
  • NGC 2403, 





    
        

            Chris Sullivan
    B
  • NGC 2403, 





    
        

            Chris Sullivan
    C
  • NGC 2403, 





    
        

            Chris Sullivan
    D
  • NGC 2403, 





    
        

            Chris Sullivan
    E
  • NGC 2403, 





    
        

            Chris Sullivan
    F
  • NGC 2403, 





    
        

            Chris Sullivan
    G
  • NGC 2403, 





    
        

            Chris Sullivan
    H
  • NGC 2403, 





    
        

            Chris Sullivan
    I
  • NGC 2403, 





    
        

            Chris Sullivan
    J
  • NGC 2403, 





    
        

            Chris Sullivan
    K
  • NGC 2403, 





    
        

            Chris Sullivan
    L
  • NGC 2403, 





    
        

            Chris Sullivan
    M
  • Final
    NGC 2403, 





    
        

            Chris Sullivan
    N

B

Crop

C

Adjusted levels, minor changes to selective color, additional noise reduction and additional cropping to center the galaxy better.

D

Crop of C.

E

Countless minor changes, such as selective color, levels, desaturation, star size reduction as well as noise reduction in places and sharpening in places.

F

Crop of E.

G

Reprocessed from scratch. I really wasn't happy with how it originally came out - I realized when I started reprocessing that I had really messed up my blue stack, which in turn messed up the entire image. It's not perfect, but I'm reasonably happy with the latest revision.

H

Crop of G

I

Still trying to improve on this one. A tip I was given yesterday about too much magenta in my stars applied to this image as well, so I tried fixing it the same way as in my Medusa. I'm liking this one better now!

J

Crop of revision I.

K

It's that time of the month when I reevaluate the image I've been least satisfied with since I first uploaded it. I've found a few new methods of color calibration that are starting to work more for me - it's not perfect (my blue stars are still white here), but it's better.

L

A crop, but not as tight of a crop as I've been giving this one.

M

It's that time of the month again where I try to fix this image. Maybe it'll be the last time?

Sky plot

Sky plot

Histogram

NGC 2403, 





    
        

            Chris Sullivan