NGC 1169: Difference between revisions
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| dec = {{DEC|+46|23|10.74}} <ref name="simbad"/> |
| dec = {{DEC|+46|23|10.74}} <ref name="simbad"/> |
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| z = 0.007962 ± 0.000017 <ref name="ned">{{cite web |
| z = 0.007962 ± 0.000017 <ref name="ned">{{cite web |
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|title = NASA/IPAC Extragalactic Database |
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|work = Results for NGC 1169 |
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|url = http://www.ned.ipac.caltech.edu/ |
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|accessdate = 2015-11-30 |
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|deadurl = yes |
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|archiveurl = https://web.archive.org/web/19971222113324/http://ned.ipac.caltech.edu/ |
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|archivedate = 1997-12-22 |
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|df = |
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}}</ref> |
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| h_radial_v = 2387 ± 5 km/s <ref name="ned"/> |
| h_radial_v = 2387 ± 5 km/s <ref name="ned"/> |
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| gal_v = 2508 ± 5 km/s <ref name="ned"/> |
| gal_v = 2508 ± 5 km/s <ref name="ned"/> |
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Revision as of 20:16, 10 February 2018
| 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] |
| Heliocentric radial velocity | 2387 ± 5 km/s [2] |
| Galactocentric velocity | 2508 ± 5 km/s [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, 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.[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
- ^ 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.
{{cite web}}: Unknown parameter|deadurl=ignored (|url-status=suggested) (help) - ^ a b c 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.
- ^ a b http://futurism.com/astronomy-photo-day-10314-ngc-1169/ Cite error: The named reference "apod" was defined multiple times with different content (see the help page).
- ^ Plait, Phil. "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.
External links
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