Hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  32 And  ·  35 nu. And  ·  39 And  ·  Andromeda Galaxy  ·  Andromeda galaxy  ·  M 110  ·  M 31  ·  M 32  ·  M110  ·  M31  ·  M32  ·  NGC 205  ·  NGC 221  ·  NGC 224  ·  NGC206  ·  NGC317  ·  R And  ·  The star 32And  ·  The star 39And  ·  The star νAnd
Getting plate-solving status, please wait...
M31 - Andromeda Galaxy, 



    
        

            Steve Ludwig
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M31 - Andromeda Galaxy

Getting plate-solving status, please wait...
M31 - Andromeda Galaxy, 



    
        

            Steve Ludwig
Powered byPixInsight

M31 - Andromeda Galaxy

Technical card

Imaging telescopes or lenses: Samyang 135 mm F2 ED UMC

Imaging cameras: Nikon D3300

Mounts: Omegon MiniTrack LX2

Software: Deep Sky Stacker (DSS)  ·  PixInsight


Dates:Oct. 29, 2019

Frames: 51x35"

Integration: 0.5 hours

Avg. Moon age: 1.50 days

Avg. Moon phase: 2.51%


Astrometry.net job: 3551465

RA center: 0h 42' 47"

DEC center: +41° 16' 12"

Pixel scale: 12.444 arcsec/pixel

Orientation: 163.306 degrees

Field radius: 5.015 degrees


Resolution: 2469x1542

Data source: Backyard

Description

Equipment

- Nikon D3300 (unmodified)
- Samyang 135mm f2 @ f2
- Omegon Minitrack LX2
- no-name tripod

Acquisition

- 51 lights x 35 s = 30 minutes
- no dark, flat, bias frames
- ISO 800
- Bortle 4 zone

Processing

-> lights stacked in Deep Sky Stacker (DSS)
-> median kappa sigma clipping method

-> unmodified TIF opened in PixInsight
-> STF stretch
-> dynamic crop
-> dynamic background extraction
-> background neutralization
-> color calibration
-> deconvolution
-> use of starnet++ module to separate background and stars
-> histogram/curves transformation/color saturation on stars and background individually
-> pixel math to recombine stars and background
-> resample/crop to 1920x1080 -> saved as jpg

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