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M 33 Triangulum Galaxy

Technical card

Resolution: 757x604

Dates: Sept. 19, 2014Sept. 2, 2015

200x30" -20C bin 1x1
6x60" -20C bin 1x1
Baader UHC-S : 10x60" -20C bin 1x1

Integration: 1.9 hours

Darks: ~20

Bias: ~20

Avg. Moon age: 21.64 days

Avg. Moon phase: 54.22%

Temperature: 15.00 job: 761410

RA center: 23.521 degrees

DEC center: 30.632 degrees

Pixel scale: 2.900 arcsec/pixel

Orientation: -106.740 degrees

Field radius: 0.390 degrees

Locations: Home Observatory, Syke, Niedersachsen, Germany


M 33 Triangulum Galaxy in RGB + UHC-S

Combination of M33 captured by two different Telescopes :
- Sky-Watcher Dobson 12" (last night) , 60sec /frame. Dominant part: color and inner part
- Meade LightSwitch 8" (a year ago) 30s/frame.

The reason for this :
M33 was close to the moon and high humidity (87%) masked out the outer dim shell of the galaxy.
So I went back to the older image ( ) and tried to optimize a bit.




Sky plot

Sky plot


M 33 Triangulum Galaxy, Wanni