NGC 4414
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| NGC 4414 | |
.jpg) as observed by the Hubble Space Telescope (HST) |
|
| Observation data (J2000 epoch) | |
|---|---|
| Constellation | Coma Berenices |
| Right ascension | 12h 26m 27.1s[1] |
| Declination | +31° 13′ 25″[1] |
| Redshift | 716 ± 6 km/s[1] |
| Distance | 62.3 Mly[2] |
| Type | SA(rs)c[1] |
| Apparent dimensions (V) | 3′.6 × 2′.0[1] |
| Apparent magnitude (V) | 11.0[1] |
| Other designations | |
| UGC 7539,[1] PGC 40692[1] | |
| See also: Galaxy, List of galaxies | |
NGC 4414 is an unbarred spiral galaxy about 62 million light-years away in the constellation Coma Berenices. It is a flocculent galaxy, with short segments of spiral structure but without the dramatic well-defined spiral arms of a grand design spiral. In 1974 a supernova, SN 1974G, was observed and is the only supernova in NGC 4414 to be recorded so far.
NGC 4414 was imaged by the Hubble Space Telescope in 1995, as part of the HST's main mission to determine the distance to galaxies, and again in 1999 as part of the Hubble Heritage project. It has been part of an ongoing effort to study its Cepheid variable stars.
The outer arms appear blue due to the continuing formation of young stars. The galaxy's arms are also rich in interstellar dust which appear as patches and streaks silhouetted by the starlight.
[edit] References
- ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for NGC 4414. http://nedwww.ipac.caltech.edu/. Retrieved on 2006-11-25.
- ^ "Pattern Speeds BIMA-SONG Galaxies with Molecule-Dominated ISMs Using the Tremaine-Weinberg Method". (Turner et al. 1998). http://arxiv.org/abs/astro-ph/0406426. Retrieved on 2006-08-31.
[edit] External links
- The Hubble Space Telescope Key Project on the Extragalactic Distance Scale. XI. The Cepheids in NGC 4414, Astrophysical Journal, Vol. 505, Iss. 1, pp. 207-229
- Hubble Heritage Project NGC 4414
- Astronomy Picture of the Day April 3 2002
- ESA/Hubble image of NGC 4414
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