NGC 1532
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A Gemini Observatory image of NGC 1532. |
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| Observation data: J2000 epoch | |
|---|---|
| Constellation: | Eridanus |
| Right ascension: | 04h 12m 04.3s[1] |
| Declination: | -32° 52′ 27″[1] |
| Redshift: | 1040 ± 5 km/s[1] |
| Distance: | |
| Type: | SB(s)b pec[1] |
| Apparent dimensions (V): | 12′.6 × 3′.3[1] |
| Apparent magnitude (V): | 10.7[1] |
| Notable features: | |
| Other designations | |
| PGC 14638[1] | |
| See also: Galaxy, List of galaxies | |
NGC 1532 is an edge-on barred spiral galaxy in the constellation Eridanus.
Contents |
[edit] Bar
NGC 1532 is one of many edge-on spiral galaxies that possesses a box-shaped bulge. This is an indication that the bulge is actually a bar. Such bars are easy to detect in face-on galaxies, where the structures can be identified visually. In inclined galaxies such as this one, however, careful analyses are needed to distinguish between bulges and bar structures.[2]
[edit] Companion galaxies and interactions
NGC 1532 may possess several dwarf companion galaxies. The galaxy is clearly interacting with one of these galaxies, the amorphous dwarf galaxy NGC 1531. The tidal forces from this interaction have created unusual plumes above the disk of NGC 1532.[3]
[edit] See also
NGC 4631 - an edge-on spiral galaxy also interacting with a dwarf companion
[edit] External links
[edit] References
- ^ a b c d e f g NASA/IPAC Extragalactic Database. Results for NGC 1532. Retrieved on November 21, 2006.
- ^ R. Lütticke, R.-J. Dettmar, M. Pohlen (2000). "Box- and peanut-shaped bulges. I. Statistics". Astronomy and Astrophysics Supplement 145: 405-414.
- ^ A. Sandage, J. Bedke (1994). Carnegie Atlas of Galaxies. Washington, D.C.: Carnegie Institution of Washington. ISBN 0-87279-667-1.
