Hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  32 And  ·  35 nu. And  ·  39 And  ·  Andromeda Galaxy  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 206  ·  NGC 221  ·  NGC 224  ·  NGC 317  ·  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

Equipment

Acquisition details

Dates:
Oct. 29, 2019
Frames:
51×35(29′ 45″)
Integration:
29′ 45″
Avg. Moon age:
1.50 days
Avg. Moon phase:
2.51%

RA center: 00h42m47s.1

DEC center: +41°1612

Pixel scale: 12.444 arcsec/pixel

Orientation: 163.306 degrees

Field radius: 5.015 degrees

More info:Open 

Resolution: 2469x1542

File size: 3.2 MB

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

Comments