Astronomy:NGC 3733
| NGC 3733 | |
|---|---|
 NGC 3733 imaged by SDSS. The glare below comes from the nearby star HD 100615 (d). | |
| Observation data (J2000 epoch) | |
| Constellation | Ursa Major |
| Right ascension | 11h 35m 01.6481s[1] |
| Declination | +54° 51′ 02.122″[1] |
| Redshift | 0.003949±0.00000200[1] |
| Helio radial velocity | 1,184±1 km/s[1] |
| Distance | 73.66 ± 6.46 Mly (22.583 ± 1.981 Mpc)[1] |
| Group or cluster | NGC 3898 group (LGG 250) |
| Apparent magnitude (V) | 12.93[1] |
| Characteristics | |
| Type | SAB(s)cd[1] |
| Size | ~107,100 ly (32.85 kpc) (estimated)[1] |
| Apparent size (V) | 4.8′ × 2.2′[1] |
| Other designations | |
| IRAS F11322+5507, UGC 6554, MCG+09-19-123, PGC 35797[1] | |
NGC 3733 is an intermediate spiral galaxy in the constellation of Ursa Major. Its velocity with respect to the cosmic microwave background is 1,358±12 km/s, which corresponds to a Hubble distance of 65.3 ± 4.6 Mly (20.03 ± 1.41 Mpc).[1] Additionally, nine non-redshift measurements give a farther mean distance of 73.66 ± 6.46 Mly (22.583 ± 1.981 Mpc).[2] It was discovered by German-British astronomer William Herschel on 14 April 1789.[3][4]
NGC 3733 has a possible active galactic nucleus, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that this luminosity is not produced by the stars.[5][6]
NGC 3898 group
According to A. M. Garcia, NGC 3733 is part of the NGC 3898 group (also known as LGG 250). This galaxy group has nine members, including NGC 3756, NGC 3794, NGC 3846, NGC 3846A, NGC 3850, NGC 3898, NGC 3982, and UGC 6894.[7][8]
Supernova
One supernova has been observed in NGC 3733:
- SN 1980D (Type II, mag. 15) was discovered by Swiss Astronomer Paul Wild on 17 March 1980.[9][10] It was initially classified as Type I,[11] but later analysis concluded it was more likely of Type II.[12][13]
See also
References
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 "Results for object NGC 3733". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+3733.
- ↑ "Distance Results for NGC 3733". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+3733.
- ↑ Herschel, William (1802). "Catalogue of 500 New Nebulae, Nebulous Stars, Planetary Nebulae, and Clusters of Stars; with Remarks on the Construction of the Heavens". Philosophical Transactions of the Royal Society of London 92: 477–528. doi:10.1098/rstl.1802.0021. Bibcode: 1802RSPT...92..477H.
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 3733". https://cseligman.com/text/atlas/ngc37.htm#3733.
- ↑ "NGC 3733". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+3733.
- ↑ Asmus, D.; Greenwell, C. L.; Gandhi, P.; Boorman, P. G.; Aird, J.; Alexander, D. M.; Assef, R. J.; Baldi, R. D. et al. (2020). "Local AGN survey (LASr): I. Galaxy sample, infrared colour selection, and predictions for AGN within 100 MPC". Monthly Notices of the Royal Astronomical Society 494 (2): 1784. doi:10.1093/mnras/staa766. Bibcode: 2020MNRAS.494.1784A.
- ↑ Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series 100: 47. Bibcode: 1993A&AS..100...47G.
- ↑ "LGG 250". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=LGG+250.
- ↑ Wild, P.; Faber, S. (1980). "Supernovae". International Astronomical Union Circular (3462): 1. Bibcode: 1980IAUC.3462....1W. http://www.cbat.eps.harvard.edu/iauc/03400/03462.html#item1.
- ↑ "SN 1980D". IAU. https://www.wis-tns.org/object/1980D.
- ↑ Kirshner, R.; Canizares, C.; Kriss, G.; Johns, M. (1980). "Supernova in NGC 3733". International Astronomical Union Circular (3464): 2. Bibcode: 1980IAUC.3464....2K. http://www.cbat.eps.harvard.edu/iauc/03400/03464.html#Item2.
- ↑ Zach, L. A. (1986). "Observations of supernovae 1980d and 1980k". Nauchnye Informatsii 61: 148. Bibcode: 1986NInfo..61Q.148Z.
- ↑ Kimeridze, G. N.; Tsvetkov, D. Yu. (1989). "Light curves of the type II supernovas 1980D and 1985L". Astrophysics 31 (1): 423. doi:10.1007/BF01004386. Bibcode: 1989Ap.....31..423K.
External links
- NGC 3733 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Coordinates: 
11h 35m 01.6481s, +54° 51′ 02.122″
 |  |
