Astronomy:NGC 3953
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| NGC 3953 | |
|---|---|
 NGC 3953 captured in 2026 | |
| Observation data (J2000 epoch) | |
| Constellation | Ursa Major |
| Right ascension | 11h 53m 49.0283s[1] |
| Declination | +52° 19′ 36.480″[1] |
| Redshift | 0.003502±0.00000200[1] |
| Helio radial velocity | 1,050±1 km/s[1] |
| Distance | 54.10 ± 1.93 Mly (16.588 ± 0.592 Mpc)[1] |
| Group or cluster | M109 Group |
| Apparent magnitude (V) | 10.8[1] |
| Characteristics | |
| Type | SB(r)bc[1] |
| Size | 131,200 ly (40.24 kpc) (estimated)[1] |
| Apparent size (V) | 6.9′ × 3.5′[1] |
| Other designations | |
| IRAS 11511+5236, UGC 6870, MCG+09-20-026, PGC 37306[1] | |
NGC 3953 is a barred spiral galaxy located in the constellation Ursa Major. Its velocity with respect to the cosmic microwave background is 1,236±13 km/s, which corresponds to a Hubble distance of 59.4 ± 4.2 Mly (18.22 ± 1.29 Mpc).[1] However, 33 non-redshift measurements give a closer mean distance of 54.10 ± 1.93 Mly (16.588 ± 0.592 Mpc).[2] It was discovered by Pierre Méchain on 12 March 1781.[3][4][5]
NGC 3953 is known to exhibit an inner ring structure that encircles the bar. NGC 3953 is a member of the M109 Group, a large group of galaxies located within the constellation Ursa Major that may contain over 50 galaxies.[6][7][8][9]
Supernovae
Two supernovae have been identified within NGC 3953:
- SN 2001dp (Type Ia, mag. 14.5) was discovered by Marco Migliardi and E. Dal Farra on 12 August 2001.[10][11][12]
- SN 2006bp (Type II, mag. 16.7) was discovered by Kōichi Itagaki on 9 April 2006.[13][14][15]
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 3953". NASA/IPAC Extragalactic Database. http://ned.ipac.caltech.edu/byname?objname=NGC+3953.
- ↑ "Distance Results for NGC 3953". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+3953.
- ↑ Henk Bril (2006). "Fortin – Other weird findings: The truth about the identity of M109". http://www.astrobril.nl/FortinOther.html#M109.
- ↑ Hartmut Frommert (2014). "Messier 109 and Messier 109B". http://messier.seds.org/m/m109d.html.
- ↑ "NGC 3953 im Großen Bären (Ursa Major)" (in de). Spektrum der Wissenschaft. https://www.spektrum.de/alias/wunder-des-weltalls/ngc-3953-im-grossen-baeren-ursa-major/2221166.
- ↑ R. B. Tully (1988). Nearby Galaxies Catalog. Cambridge: Cambridge University Press. ISBN 978-0-521-35299-4.
- ↑ P. Fouque; E. Gourgoulhon; P. Chamaraux; G. Paturel (1992). "Groups of galaxies within 80 Mpc. II – The catalogue of groups and group members". Astronomy and Astrophysics Supplement 93: 211–233. Bibcode: 1992A&AS...93..211F.
- ↑ A. Garcia (1993). "General study of group membership. II – Determination of nearby groups". Astronomy and Astrophysics Supplement 100: 47–90. Bibcode: 1993A&AS..100...47G.
- ↑ G. Giuricin; C. Marinoni; L. Ceriani; A. Pisani (2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". Astrophysical Journal 543 (1): 178–194. doi:10.1086/317070. Bibcode: 2000ApJ...543..178G.
- ↑ Migliardi, M.; Dal Farra, E.; Kato, T.; Sano, Y. (2001). "Supernova 2001dp in NGC 3953". International Astronomical Union Circular (7683): 1. Bibcode: 2001IAUC.7683....1M. http://www.cbat.eps.harvard.edu/iauc/07600/07683.html#Item1.
- ↑ "SN 2001dp". IAU. https://www.wis-tns.org/object/2001dp.
- ↑ "Results for object SN 2001dp". NASA/IPAC Extragalactic Database. http://ned.ipac.caltech.edu/byname?objname=SN+2001dp.
- ↑ Nakano, S.; Itagaki, K. (2006). "Supernova 2006bp in NGC 3953". International Astronomical Union Circular (8700): 4. Bibcode: 2006IAUC.8700....4N. http://www.cbat.eps.harvard.edu/iauc/08700/08700.html#Item2.
- ↑ "SN 2006bp". IAU. https://www.wis-tns.org/object/2006bp.
- ↑ "Results for object SN 2006bp". NASA/IPAC Extragalactic Database. http://ned.ipac.caltech.edu/byname?objname=SN+2006bp.
External links
Coordinates: 
11h 53m 49.0283s, +52° 19′ 36.480″
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