Astronomy:NGC 3193
| NGC 3193 | |
|---|---|
 NGC 3193 by Sloan Digital Sky Survey | |
| Observation data (J2000 epoch) | |
| Constellation | Leo[1] |
| Right ascension | 10h 18m 24.9s[2] |
| Declination | 21° 53′ 38″[2] |
| Redshift | 0.004607±0.000017[2] |
| Helio radial velocity | 1,381±5 km/s km/s[2] |
| Distance | 92 ± 27 Mly (28.2 ± 8.3 Mpc)[2] |
| Apparent magnitude (V) | 10.9[1] |
| Characteristics | |
| Type | E2 [2] |
| Apparent size (V) | 2.0′ × 2.0′[1] |
| Notable features | Member of HCG 44 |
| Other designations | |
| NGC 3193, Arp 316, UGC 5562, MCG+04-24-027, PGC 30099[2] | |
NGC 3193 is an elliptical galaxy in the constellation Leo.[1] The galaxy lies about 90 million light years away from Earth, which means, given its apparent dimensions, that NGC 3193 is approximately 80,000 light years across.[2] It was discovered by William Herschel on March 12, 1784.[3]
NGC 3193 lies at the north-east edge of the galaxy compact group HCG 44, which also includes the spiral galaxies NGC 3185, NGC 3187 and NGC 3190.[4] HCG 44 is considered to be part of a larger galaxy group known as LGG 194, which also includes the galaxies NGC 3162, NGC 3177, NGC 3213, NGC 3226, NGC 3227, NGC 3287, and NGC 3301.[5] It is a member of the Leo II Groups, part of the Virgo Supercluster.[6] NGC 3193 has similar radial velocity with NGC 3187 and NGC 3190, however redshift independent distances put NGC 3193 at a greater distance than the rest of the group, although these measurements have large error margins.[4]
A long tail of hydrogen has been found north of NGC 3193 and two smaller hydrogen clouds lie southeast of the galaxy.[4] A dwarf spheroidal galaxy has been detected in the halo of NGC 3193.[7]
References
- ↑ 1.0 1.1 1.2 1.3 Finlay, Warren H. (2014). Concise Catalogue of Deep-Sky Objects. The Patrick Moore Practical Astronomy Series (2nd ed.). Springer Cham. p. 240. doi:10.1007/978-3-319-03170-5. ISBN 978-3-319-03169-9.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 "NASA/IPAC Extragalactic Database". Results for NGC 3193. http://ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname=NGC+3193.
- ↑ Seligman, Courtney. "NGC 3193 (= PGC 30099 = HCG 44B, and with NGC 3187 & 3190 = Arp 316)". https://cseligman.com/text/atlas/ngc31a.htm#3193.
- ↑ 4.0 4.1 4.2 Serra, Paolo et al. (1 January 2013). "Discovery of a giant H i tail in the galaxy group HCG 44". Monthly Notices of the Royal Astronomical Society 428 (1): 370–380. doi:10.1093/mnras/sts033.
- ↑ Garcia, A. M. (1 July 1993). "General study of group membership. II. Determination of nearby groups.". Astronomy and Astrophysics Supplement Series 100: 47–90. ISSN 0365-0138. Bibcode: 1993A&AS..100...47G. https://cdsarc.cds.unistra.fr/ftp/J/A+AS/100/47/table2.dat.
- ↑ "The Leo II Groups". http://www.atlasoftheuniverse.com/galgrps/leoii.html.
- ↑ Smith Castelli, A. V.; Faifer, F. R.; Escudero, C. G. (December 2016). "Stellar systems in the direction of the Hickson Compact Group 44: I. Low surface brightness galaxies". Astronomy & Astrophysics 596: A23. doi:10.1051/0004-6361/201628969. Bibcode: 2016A&A...596A..23S.
External links
- NGC 3193 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
Template:NGC objects:3000-3499
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