Dates:Oct. 19, 2014 , Oct. 22, 2014 , Oct. 23, 2014 , Oct. 24, 2014
Frames:
Baader Planetarium B 36mm: 25x450" bin 2x2
Baader Planetarium G 36mm: 27x450" bin 2x2
Baader Planetarium L 36mm: 61x900" bin 1x1
Baader Planetarium R 36mm: 20x450" bin 2x2
Integration: 24.2 hours
Avg. Moon age: 20.83 days
Avg. Moon phase: 5.09%
Astrometry.net job: 396955
RA center: 1h 59' 20"
DEC center: +19° 0' 28"
Pixel scale: 0.957 arcsec/pixel
Orientation: 176.833 degrees
Field radius: 0.338 degrees
Resolution: 1800x1800
Locations: Observatorio remoto Tomas Lopez en AstroCamp, Nerpio, Albacete, Spain
Data source: Own remote observatory
Remote source: AstroCamp
NGC 772 (also known as Arp 78) is an unbarred spiral galaxy approximately 130 million light-years away in the constellation Aries.
Around 200,000 light years in diameter, NGC 772 is twice the size of the Milky Way Galaxy, and is surrounded by several satellite galaxies – including the dwarf elliptical, NGC 770 – whose tidal forces on the larger galaxy have likely caused the emergence of a single elongated outer spiral arm that is much more developed than the others arms. Halton Arp includes NGC 772 in his Atlas of Peculiar Galaxies as Arp 78, where it is described as a "Spiral galaxy with a small high-surface brightness companion".
Collaboration between Salvatore Iovene, Jaime Alemany and me.
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