NGC 1169

NGC 1169

Image of NGC 1169 taken by Adam Block
Observation data (J2000 epoch)
Right ascension 03h 03m 34.756s [1]
Declination +46° 23 10.74 [1]
Redshift 0.007962 ± 0.000017 [2]
Helio radial velocity 2387 ± 5 km/s [2]
Galactocentric velocity 2508 ± 5 km/s [2]
Distance (comoving) 35.1 ± 8.4 kpc (114 ± 27 kly)h1
0.73
[2]
Apparent magnitude (V) 9.02 [2]
Apparent magnitude (B) 13.2 [1]
Absolute magnitude (V) -23.6 [2]
Characteristics
Type SAB(r)b [2]
Mass 4.5×1011 [3] M
Mass/Light ratio 10 [3] M/L
Size 120,000 × 84,000 ly [2]
Apparent size (V) 4.2 × 2.8 arcmin [2]
Other designations
NGC 1169, UGC 2503, LEDA 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.[4][5] The entire galaxy is rotating at approximately 265 km/s [3]

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.[2] and exhibits a slight ring structure.

References

  1. 1 2 3 "SIMBAD Astronomical Database". Results for NGC 1169. Retrieved 2015-11-30.
  2. 1 2 3 4 5 6 7 8 9 10 "NASA/IPAC Extragalactic Database". Results for NGC 1169. Retrieved 2015-11-30.
  3. 1 2 3 van Driel, W.; van Woerden, H. (1994). "Distribution and motions of HI in the Sa galaxies NGC 1169 and NGC 3898" (PDF). Astronomy and Astrophysics. 284: 395–407.
  4. "Astronomy Photo of the Day: 1/03/15 — NGC 1169". futurism.com. Retrieved 2015-12-01.
  5. Plait, Phil. "The Beauty of a Grain of Sand on the Cosmic Beach". slate.com. Retrieved 2015-12-01.
  6. "New General Catalog Objects: NGC 1150 - 1199". cseligman.com. Retrieved 2015-12-01.

External links

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