NGC 1232
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| Observation data: J2000 epoch | |
|---|---|
| Constellation: | Eridanus |
| Right ascension: | 03h 09m 45.5s[1] |
| Declination: | -20° 34′ 46″[1] |
| Redshift: | 1603 ± 1 km/s[1] |
| Distance: | 70 Mly |
| Type: | SAB(rs)c[1] |
| Apparent dimensions (V): | 7′.4 × 6′.5[1] |
| Apparent magnitude (V): | 10.9[1] |
| Notable features: | large satellite |
| Other designations | |
| PGC 11819,[1] Arp 41[1] | |
| See also: Galaxy, List of galaxies | |
NGC 1232 is an intermediate spiral galaxy about 70 million light-years away in the constellation Eridanus.
It is dominated by millions of bright stars and dark dust, caught up in a gravitational swirl of spiral arms rotating about the center. Open clusters containing bright blue stars can be seen sprinkled along these spiral arms, while dark lanes of dense interstellar dust can be seen sprinkled between them. Less visible, but detectable, are billions of dim normal stars and vast tracts of interstellar gas, together wielding such high mass that they dominate the dynamics of the inner galaxy. Invisible are even greater amounts of matter in a form we don't yet know - pervasive dark matter needed to explain the motions of the visible in the outer galaxy.
NGC 1232 and its satellite are part of the Eridanus cluster of galaxies, along with NGC 1300.
[edit] NGC 1232A
NGC 1232A is a satellite galaxy of NGC 1232. It is thought to be the cause of unusual bending in the spiral arms.
[edit] See also
[edit] External links
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