NGC 1128
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| Observation data: J2000 epoch | |
|---|---|
| Constellation: | |
| Right ascension: | 2h 57m 41.6s[1] |
| Declination: | +6° 01′ 29″[1] |
| Redshift: | 6940 ± 20 km/s[1] |
| Distance: | |
| Type: | E0[1] |
| Apparent dimensions (V): | 0'.9 × 0'.4[1] |
| Apparent magnitude (V): | 13.8[1] |
| Notable features: | Dumbbell-shaped galaxy |
| Other designations | |
| PGC 11188[1] | |
| See also: Galaxy, List of galaxies | |
NGC 1128 is a "dumbbell galaxy" in the Abell 400 galaxy cluster. It is the center of the 3C75 radio source and contains two orbiting supermassive black holes on their way to merging. Lewis Swift is credited with dthe iscovery of NGC 1128 in 1886. However, there is a possible 5 min error in Swift's records that casts some doubt on his discovery.[citation needed]
[edit] External links
- Black Holes Dance With Incredible Violence (SpaceDaily) Apr 12, 2006
- 3C 75 in Abell 400: Black Holes Determined to be Bound (Chandra AXAF)
- More Images of 3C 75 in Abell 400 (Chandra AXAF)
- NGC 1128 (jpeg, Chandra AXAF)
[edit] References
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