Astronomy:NGC 297
From HandWiki
| NGC 297 | |
|---|---|
 SDSS image of NGC 297 (below right of center) | |
| Observation data (J2000 epoch) | |
| Constellation | Cetus |
| Right ascension | 00h 54m 58.9s[1] |
| Declination | −07° 20′ 59″[1] |
| Redshift | 0.050778[1] |
| Helio radial velocity | 15223 km/s |
| Distance | 717 Mly (219.7 Mpc) |
| Apparent magnitude (V) | 17.27[1] |
| Characteristics | |
| Type | cE3: pec?[1] |
| Apparent size (V) | 0.33' × 0.29'[1] |
| Other designations | |
| 2MASX J00545892-0720591, 6dF J0054589-072059,[1] PGC 1020464 | |
NGC 297 is an elliptical galaxy in the constellation Cetus. It was discovered on September 27, 1864, by Albert Marth[2] and is classified as type E3, based on galaxy morphological classification.[3]
To date, according to redshift measurements, a current distance of 236 Mpc (~770 Mly) is given for NGC 297. This value falls within the range of Hubble distance values.[4]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 "NASA/IPAC Extragalactic Database". Results for NGC 0297. http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+297&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES.
- ↑ "New General Catalog Objects: NGC 250 - 299". Cseligman. http://cseligman.com/text/atlas/ngc2a.htm#297.
- ↑ "Revised data for NGC/IC Catalogue, from NGC 200-299". http://astrovalleyfield.ca/AstronomieCompl/NGC%20et%20autres/WolfgangS/N0200_exc_web.htm.
- ↑ "NED Distance Results for NGC 297". https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+297.
External links
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