Astronomy:NGC 7007
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Short description: Galaxy in the constellation Indus
| NGC 7007 | |
|---|---|
 Lenticular galaxy NGC 7007. | |
| Observation data (J2000 epoch) | |
| Constellation | Indus |
| Right ascension | 21h 05m 27.9s[1] |
| Declination | −52° 33′ 07″[1] |
| Redshift | 0.010334[1] |
| Helio radial velocity | 3098 km/s[1] |
| Distance | 131,132,400 Mly |
| Apparent magnitude (V) | 12.94[1] |
| Characteristics | |
| Type | SA0[1] |
| Apparent size (V) | 1.9 × 1.1[1] |
| Other designations | |
| ESO 187-48, PGC 66069[1] | |
NGC 7007 is a lenticular galaxy[2] around 130 million light-years away from Earth in the constellation Indus.[3][2] NGC 7007 was discovered by astronomer John Herschel on July 8, 1834.[4]
Counter-rotating disk
In NGC 7007, there is counter-rotating disk of ionized gas that counter-rotates with respect to the stars. This indicates an external origin of the gas such as accretion.[5]
See also
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 "NASA/IPAC Extragalactic Database". Results for NGC 7007. http://nedwww.ipac.caltech.edu/.
- ↑ 2.0 2.1 "Your NED Search Results". http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=Ngc+7007&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.
- ↑ Rojas, Sebastián García. "Galaxy NGC 7007 Deep Sky Objects Browser" (in en). https://dso-browser.com/deep-sky/8194/ngc-7007/galaxy.
- ↑ "New General Catalog Objects: NGC 7000 - 7049" (in en-US). http://cseligman.com/text/atlas/ngc70.htm.
- ↑ Dettmar, Ralf-Juergen; Jullien-Dettmar, Marlies; Barteldrees, Andreas (1 July 1990). "Observations of extended and counterrotating disks of ionized gas in SO galaxies*". Nasa, Ames Research Center, the Interstellar Medium in External Galaxies: Summaries of Contributed Papers. https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19910004874.pdf.
External links
- NGC 7007 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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