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Contains:  IC131, IC132, IC133, IC135, IC136, IC137, IC142, IC143, M 33, M33, NGC 598, NGC588, NGC592, NGC595, NGC604, Triangulum galaxy
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Technical card

Dates:Nov. 28, 2016

Baader B 1.25'' CCD Filter: 12x300" -20C bin 1x1
Baader G 1.25'' CCD Filter: 10x300" -20C bin 1x1
Baader L 1.25'' Filter: 15x300" -20C bin 1x1
Baader R 1.25'' CCD Filter: 11x300" -20C bin 1x1

Integration: 4.0 hours

Darks: ~35

Flats: ~30

Bias: ~100

Avg. Moon age: 28.62 days

Avg. Moon phase: 0.93%

Temperature: -6.00 job: 1410080

RA center: 1h 33' 54"

DEC center: +30° 39' 48"

Pixel scale: 1.220 arcsec/pixel

Orientation: -88.641 degrees

Field radius: 0.705 degrees

Resolution: 3330x2496

Locations: Kreben, Kreben(Wilhermsdorf), Bayern, Germany


Object description (

The Triangulum Galaxy is a spiral galaxy approximately 3 million light-years from Earth in the constellation Triangulum. It is catalogued as Messier 33 or NGC 598, and is sometimes informally referred to as the Pinwheel Galaxy, a nickname it shares with Messier 101. The Triangulum Galaxy is the third-largest member of the Local Group of galaxies, which includes the Milky Way, the Andromeda Galaxy and about 44 other smaller galaxies. It is one of the most distant permanent objects that can be viewed with the naked eye.

The galaxy is the smallest spiral galaxy in the Local Group and it is believed to be a satellite of the Andromeda Galaxy due to their interactions, velocities and proximity to one another in the night sky. It also has an H-II nucleus.



Thomas Richter
License: None (All rights reserved)



Description: unsharp masking


Description: Final Version: improvements in color and histogram


Description: New processing: I tried to get more layer/masking skills in PS - selective blure by layer masking - sharpening by highpass layer

Sky plot

Sky plot


M33 LRGB, 


            Thomas Richter

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