NGC 1169

NGC 1169
NGC 1169
	Image of NGC 1169 taken by Adam Block
Observation data (J2000 epoch)
Constellation	Perseus
Right ascension	03h 03m 34.756s
Declination	+46° 23′ 10.74″
Redshift	0.007962 ± 0.000017
Helio radial velocity	2387 ± 5 km/s
Galactocentric velocity	2508 ± 5 km/s
Distance (comoving)	35.1 ± 8.4 kpc (114 ± 27 kly)h−1; 0.73
Apparent magnitude (V)	9.02
Apparent magnitude (B)	13.2
Absolute magnitude (V)	-23.6
Characteristics
Type	SAB(r)b
Mass	4.5×1011 M☉
Mass/Light ratio	10 M☉/L☉
Size	120,000 × 84,000 ly
Apparent size (V)	4.2 × 2.8 arcmin
Other designations
	NGC 1169, UGC 2503, PGC 11521

NGC 1169 (UGC 2503) is an intermediate barred spiral galaxy in the constellation of Perseus. NGC 1169 has a reddish center, indicating the region is dominated by older stars. In contrast, the outer ring contains larger blue-white stars, a sign of recent star formation.^[1]^[5] The entire galaxy is rotating at approximately 265 km/s ^[4]

NGC 1169 was discovered on December 11, 1786 by William Herschel.^[6] Measurements of its distance range from 20.9 Mpc - 49.7 Mpc with an average of 35.1 Mpc.^[3] and exhibits a slight ring structure.

References[]

^ ^a ^b "Astronomy Photo of the Day: 1/03/15 — NGC 1169". futurism.com. Retrieved 2015-12-01.
^ ^a ^b ^c "SIMBAD Astronomical Database". Results for NGC 1169. Retrieved 2015-11-30.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j "NASA/IPAC Extragalactic Database". Results for NGC 1169. Archived from the original on 1997-12-22. Retrieved 2015-11-30.
^ ^a ^b ^c van Driel, W.; van Woerden, H. (1994). "Distribution and motions of HI in the Sa galaxies NGC 1169 and NGC 3898". Astronomy and Astrophysics. 284: 395–407. Bibcode:1994A&A...286..395V.
^ Plait, Phil (January 2015). "The Beauty of a Grain of Sand on the Cosmic Beach". slate.com. Retrieved 2015-12-01.
^ "New General Catalog Objects: NGC 1150 - 1199". cseligman.com. Retrieved 2015-12-01.