NGC 4707
NGC 4707 is an irregular galaxy in the constellation of Canes Venatici. It was discovered by John Herschel on 5 June 1834,[4] and was described by John Louis Emil Dreyer, the compiler of the New General Catalogue, as a "small, stellar" galaxy.[5]
| NGC 4707 | |
|---|---|
 NGC 4707, imaged by Hubble | |
| Observation data (J2000 epoch) | |
| Constellation | Canes Venatici |
| Right ascension | 12h 48m 21.666s[1] |
| Declination | +51° 09′ 53.81″[1] |
| Redshift | 0.001561[2] |
| Helio radial velocity | 468 km/s[2] |
| Distance | 22.11 ± 3.64 Mly (6.780 ± 1.116 Mpc)[2] |
| Apparent magnitude (V) | 12.91[2] |
| Apparent magnitude (B) | 15.2[3] |
| Absolute magnitude (V) | -16.23[2] |
| Characteristics | |
| Type | Sm/Im[3] |
| Size | 16,100 ly (4,930 pc)[2] |
| Apparent size (V) | 1.120′ × 1.045′[3] |
| Other designations | |
| UGC 7971, MCG+09-21-050, PGC 43255, DDO 150[3] | |
NGC 4707 has a morphological type of Sm or Im, meaning that it is mostly irregular or has very weak spiral arms.[3] The galaxy was imaged by the Hubble Space Telescope in 2016. The image showed the galaxy had little to no signs of a central bulge or any prominent structures (typical of Magellanic-type spirals). However, the telescope could resolve many stars, as well as several turquoise-colored star forming regions.[6]
References
- Adelman-McCarthy, J. K.; et al. (2009). "VizieR Online Data Catalog: The SDSS Photometric Catalog, Release 7". VizieR On-line Data Catalog. Bibcode:2009yCat.2294....0A.
- "NED results for object NGC 4707". National Aeronautics and Space Administration / Infrared Processing and Analysis Center. Retrieved 20 February 2017.
- "NGC 4707". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 20 February 2017.
- Seligman, Courtney. "New General Catalogue objects: NGC 4700 - 4749". cseligman.com. Retrieved 20 February 2017.
- "NGC 4707 - SEDS". Retrieved 20 February 2017.
- "Astro-pointillism | ESA/Hubble". www.spacetelescope.org. 2016. Retrieved 20 February 2017.
External links
Media related to NGC 4707 at Wikimedia Commons
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