NGC 4013
| NGC 4013 | |
|---|---|
| 200px
HST closeup view of NGC 4013
|
|
| Observation data (J2000 epoch) | |
| Constellation | Ursa Major |
| Right ascension | 11h 58m 31.13s[1] |
| Declination | +43° 56′ 50.1″[1] |
| Redshift | 831 ± 1 km/s[1] |
| Distance | 60.6 ± 8.1 Mly (18.6 ± 2.5 Mpc)[2] |
| Type | SBa[1] |
| Apparent dimensions (V) | 5.2' x 1.0'[1] |
| Apparent magnitude (V) | 12.1B[1] |
| Other designations | |
| UGC 6963,[1] PGC 37691[1] LEDA 37691[3] 2MFGC 9412[3]
IRAS 11559+4413[3] 2MASX J11583141+4356492[3] MCG+07-25-009[3] UZC J115831.5+435651[3] |
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NGC 4013 is an edge-on barred spiral galaxy about 55 million light-years away in the constellation Ursa Major. The disk of NGC 4013 shows a distinct "peanut"-shaped bulge in long exposure photographs that N-body computer simulations suggest is consistent with a stellar bar seen perpendicular to the line of sight.[4]
A recent deep color image of NGC 4013 revealed a looping tidal stream of stars extending over 80 thousand light-years from the Galactic Center. This structure is thought to be the remnants of a smaller galaxy that was torn apart by tidal forces as it collided with NGC 4013.[5]
Supernova SN 1989Z was discovered on December 30, 1989 at apparent magnitude 12.[6]
See also
References
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- The Discovery of a Giant Stellar Tidal Stream Around NGC4013
- HubbleSite NewsCenter: A Galaxy on the Edge
- Astronomy Picture of the Day: NGC 4013 and the Tidal Stream
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- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Lua error in package.lua at line 80: module 'strict' not found.
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- ↑ Combes, F. and Sanders, R.H., "Formation and properties of persisting stellar bars", Astronomy and Astrophysics, vol. 96, no. 1-2, Mar. 1981, p. 164-173.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
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