NGC 1532

NGC 1532
Observation data (J2000 epoch)
Constellation	Eridanus
Right ascension	04h 12m 04.3s[1]
Declination	-32° 52′ 27″[1]
Redshift	1040 ± 5 km/s[1]
Type	SB(s)b pec[1]
Apparent dimensions (V)	12′.6 × 3′.3[1]
Apparent magnitude (V)	10.7[1]
Other designations
PGC 14638[1]
See also: Galaxy, List of galaxies

NGC 1532 is an edge-on barred spiral galaxy in the constellation Eridanus.

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]

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]

See also

NGC 4631 - an edge-on spiral galaxy also interacting with a dwarf companion

External links

• NASA's APOD: NGC 1531/2 (7/10/1998)
• NASA's APOD: Interacting Galaxies (3/1/05)
• NGC 1532 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

References

1. ^ ^{a b c d e f g} "NASA/IPAC Extragalactic Database". Results for NGC 1532. http://nedwww.ipac.caltech.edu/. Retrieved 2006-11-21. 
2. ^ R. Lütticke, R.-J. Dettmar, M. Pohlen (2000). "Box- and peanut-shaped bulges. I. Statistics". Astronomy and Astrophysics Supplement 145 (3): 405–414. arXiv:astro-ph/0006359. Bibcode 2000A&AS..145..405L. doi:10.1051/aas:2000354. 
3. ^ A. Sandage, J. Bedke (1994). Carnegie Atlas of Galaxies. Washington, D.C.: Carnegie Institution of Washington. ISBN 0-87279-667-1. 

Coordinates: 04^h 12^m 04.2^s, −32° 52′ 30″