Hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Great Nebula in Orion  ·  M 42  ·  M 43  ·  NGC 1973  ·  NGC 1975  ·  NGC 1976  ·  NGC 1977  ·  NGC 1980  ·  NGC 1981  ·  NGC 1982  ·  The star 42Ori  ·  The star 45Ori  ·  The star θ1Ori  ·  The star θ2Ori  ·  The star ιOri
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M42, 



    
        

            Russell Valentine
M42
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M42

Getting plate-solving status, please wait...
M42, 



    
        

            Russell Valentine
M42
Powered byPixInsight

M42

Equipment

Imaging Telescopes Or Lenses
Canon EFS 55-250mm Canon EFS 55-250 mm
Imaging Cameras
Canon T3i 600D Canon 600d
Mounts
StarSync Tracker, Star Tracker
Software
SIRIL

Acquisition details

Dates:
Jan. 24, 2018
Frames:
65x10" (10' 50")
Integration:
10' 50"
Avg. Moon age:
6.96 days
Avg. Moon phase:
45.47%

Basic astrometry details

Astrometry.net job: 1927466

RA center: 05h34m57s.8

DEC center: -05°2844

Pixel scale: 3.711 arcsec/pixel

Orientation: 4.630 degrees

Field radius: 1.782 degrees

Resolution: 2480x2409

Locations: Lawrence, KS, Lawrence, Kansas, United States

Data source: Backyard

Description

Location:

Taken Jan 24, 2018 in Lawrence, KS, USA probably Bortle 6 with a bright white LED streetlight right across the street.

Equipment:

Canon T3i unmodded using Ekos for camera control

StarSync Tracker with Latitude stand

Canon EF-S 55mm-250mm IS II Telephoto Lens set at f/5.6 250mm

Acquisition

Light 65x10", ISO1600

Darks 20x10" as the last exposures of the night

Flats 14x1/640" with a tshirt over the lens look at a light illuminated by the sun

Darks for Flats 22x1/640"

First Processed in Siril

Flats dark subtracted and stacked

Darks stacked

Lights dark subtracted and flats applied then registered and stacked

Processed in Darktable with modules:

Exposure

White Balance

Base Curve

Contrast Brightness and Saturation

Processed in the Gimp with G'MIC plugin

G'MIC -> Details -> Dynamic range increase

Colors -> Brightness-Contrast

Croped and Scaled down

Not the best image but I was happy I can get some details with the light pollution and it being just a standard camera lens.

Most of the time was actually image transfer from Camera RAM through USB cable to computer, in the future I think I will leave the images on the sd card.

Comments

Sky plot

Sky plot

Histogram

M42, 



    
        

            Russell Valentine