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Technical card

Resolution: 1600x2400

Dates: July 23, 2016

Frames:
10x180" ISO800
13x240" ISO800

Integration: 1.4 hours

Darks: ~6

Bias: ~30

Avg. Moon age: 17.91 days

Avg. Moon phase: 89.25%

Mean SQM: 21.50

Mean FWHM: 5.45

Temperature: 8.40

Astrometry.net job: 1406013

RA center: 246.277 degrees

DEC center: -21.782 degrees

Pixel scale: 18.249 arcsec/pixel

Orientation: 145.370 degrees

Field radius: 7.311 degrees

Description

*Please check the full image 2400px - resized from original)*

Constructive criticism, comments and suggestions are more than welcome in the comments section. Thank's for taking your time to look at this image.

Taken from Rural Skies (Bortle 3-4; NELM ~6.2; SQM ~21.5*calculated), from Cristina, MG, Brazil (22ºS latitude).

Date and Time: July 23rd, 2016, at 20:00h (UTC-3, start of capture)
Camera: Unmodded Canon T5/1200D, at ISO 800
Lens: Nikon 105mm f/2.5 AI, operated at f/4.0
Mount: Sky-Watcher HEQ5, tracking, controlled with EQASCOM, unguided
Exposure Detail: 13x240s (52min) + 10x180s (30min) - TOTAL: 82min

Comments

Author

grsotnas
Like

Revisions

B

Heavier star shrinking/stretching to better show nebulosity, however stars look overprocessed at 100%

Sky plot

Sky plot

Histogram

Antares, Blue Horsehead and Dust, grsotnas