NGC 1128

NGC 1128
Binary black hole system 3C 75 contained in the dumbbell shaped galaxy NGC 1128
Observation data (J2000 epoch)
Right ascension	2^h 57^m 41.6^s^[1]
Declination	+6° 01′ 29″^[1]
Redshift	6940 ± 20 km/s^[1]
Distance	300 Mly^[2]
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]

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 that may be merging. Computer simulations indicate that these two black holes will gradually spiral in toward each other until they merge. Lewis Swift is credited with the discovery of NGC 1128 in 1886.^[3]

References

1 2 3 4 5 6 7 "NASA/IPAC Extragalactic Database". Results for. Retrieved 2006-10-26.
↑ http://antwrp.gsfc.nasa.gov/apod/astropix.html
↑ Seligman, Courtney. "Celestial Atlas: NGC Objects: NGC 1100 - 1149". cseligman.com. Archived from the original on 25 July 2015. Retrieved 25 July 2015.

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)

NGC 1128 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

Coordinates: 02^h 57^m 41.6^s, +06° 01′ 29″

Astronomical catalogs

NGC	NGC 1123 NGC 1124 NGC 1125 NGC 1126 NGC 1127 NGC 1128 NGC 1129 NGC 1130 NGC 1131 NGC 1132 NGC 1133

PGC	PGC 11184 PGC 11185 PGC 11186 PGC 11187 PGC 11188 PGC 11189 PGC 11190 PGC 11191 PGC 11192

Abell	Abell 395 Abell 396 Abell 397 Abell 398 Abell 399 Abell 400 Abell 401 Abell 402 Abell 403 Abell 404 Abell 405

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