NGC 3432
| Galaxy NGC 3432 |
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|---|---|
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| The interacting galaxies NGC 3432 (center) and UGC 5983 (bottom right), SDSS image, angle of view 8 '× 8' | |
| AladinLite | |
| Constellation | Little lion |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 10 h 52 m 31.1 s |
| declination | + 36 ° 37 ′ 08 ″ |
| Appearance | |
| Morphological type | SB (s) m / LINER / HII |
| Brightness (visual) | 11.1 mag |
| Brightness (B-band) | 11.7 mag |
| Angular expansion | 6.6 ′ × 1.6 ′ |
| Position angle | 38 ° |
| Surface brightness | 13.5 mag / arcmin² |
| Physical data | |
| Affiliation | isolated |
| Redshift | 0.002055 ± 0.000013 |
| Radial velocity | (616 ± 4) km / s |
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Stroke distance v rad / H 0 |
(27 ± 2) x 10 6 ly (8.35 ± 0.59) Mpc |
| history | |
| discovery | William Herschel |
| Discovery date | March 19, 1787 |
| Catalog names | |
| NGC 3432 • UGC 5986 • PGC 32643 • CGCG 184-030 • MCG + 06-24-28 • KUG 1049 + 368 • 2MASX J10523113 + 3637076 • Arp 206 • VV 11a • GC 2238 • H I 172 • h 780 • LDCE 743 NED008 • KIG 447 | |
NGC 3432 is a bar-spiral galaxy with an active nucleus of the Hubble type SBm in the constellation Little Leo in the northern sky . It is estimated to be 27 million light years from the Milky Way and about 50,000 light years across. Together with the dwarf galaxy PGC 32617 , it forms the gravitationally bound galaxy pair Arp 206 .
Halton Arp organized his catalog of unusual galaxies into groups according to purely morphological criteria. This galaxy belongs to the class of galaxies with matter ejected from the nucleus .
The Type-IIn? Supernova SN 2000ch was observed here.
The object was discovered by William Herschel on March 19, 1787 .
literature
- Jeff Kanipe, Dennis Webb: The Arp Atlas of Peculiar Galaxies - A Chronicle and Observer's Guide . Richmond 2006, ISBN 978-0-943396-76-7
Web links
Commons : NGC 3432 - collection of images, videos, and audio files
