M106_2012-05-25

Galaxies - M 106

R.A.: 12h 18m 57.5s
Dec.: +47° 18' 14"
Mag.: 9.1

Messier 106 (also known as NGC 4258) is a spiral galaxy in the constellation Canes Venatici. It was discovered by Pierre Méchain in 1781. M106 is at a distance of about 22 to 25 million light-years away from Earth. It is also a Seyfert II galaxy, which means that due to x-rays and unusual emission lines detected, it is suspected that part of the galaxy is falling into a supermassive black hole in the center. NGC 4217 is a possible companion galaxy of Messier 106.

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M 106

Date: 24.05.2012 and 25.05.2012
Ambient conditions: 10°C, transparency 4/5, seeing 3/5
Location: Trier, Germany

Equipment:
Telescope: Deltagraph 300mm f/3.3
Mount: GM2000QCI
Camera: SXVF-M25C
Guiding scope: Orion short tube 80mm f/5
Guiding camera: ATIK 16IC
Filters: IDAS LPS

Acquisition:
Software: Maxim DL 5
FOV, Image scale: 62.5 x 54.8 arcmin, 1.62 arcs/pixel
Sub-exposures: 2 h 50 m (6 x 10 min + 22 x 5min) light frames
Calibration: 52 x 15 s EL Flats, Masterbias

Processing:
Maxim DL 5: Calibration, SDMask stacking, Sum stacking of 10min and 5min combined images
Images Plus 3.75: DDP
CS5: Levels, star size reduction with Carboni´s Actions, color enhancement with Gabany's method, Unsharp mask on galaxies.

Comments:
Picture taken during two consecutive nights with average transparency and seeing. Total exposure time could be longer.

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Filename: galaxies/m106_2012-05-25_full.png
Filesize: 4539093 Kb
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