| Triangulum Galaxy | … |
|---|---|
| Galaxy Messier 33 in Triangulum (the Triangulum Galaxy) | … |
| Observation data (J2000 epoch) | … |
| Pronunciation | /traɪˈæŋɡjʊləm/ |
| Constellation | Triangulum |
| Right ascension | 01 33 50.021 |
| Declination | +30° 39′ 36.7″1 |
| Redshift | -0.000607 ± 0.0000101 |
| Heliocentric radial velocity | -179 ± 3 km/s2 |
| Galactocentric velocity | -44 ± 6 km/s2 |
| Distance | 883 kpc (2.88 Mly)3 |
| Apparent magnitude (V) | 5.721 |
| Characteristics | … |
| Type | SA(s)cd2 |
| Mass | 5×104 M |
| Number of stars | 40 billion (4×10)5 |
| Size | 61,120 ly (18.74 kpc) (diameter; 25.0 mag/arcsec B-band isophote)65 |
| Apparent size (V) | 70.8 × 41.7 arcminutes1 |
| H I scale length (physical) | 36.2 kpc (118,100 ly)7 |
| Other designations | … |
| IRAS 01310+3024, NGC 598, UGC 1117, MCG +05-04-069, PGC 5818, CGCG 502-1102 | … |
(echo:: @ ᯤ)
Footnotes
-
“M 33 – Galaxy”. SIMBAD. Centre de Données astronomiques de Strasbourg. Retrieved 2009-11-28. ↩ ↩2 ↩3 ↩4 ↩5
-
“Results for NGC 598”. NASA/IPAC Extragalactic Database. NASA/IPAC/JPL. Retrieved 2006-12-01. ↩ ↩2 ↩3 ↩4
-
“Your NED Search Results”. ↩
-
Corbelli, Edvige (June 2003). “Dark matter and visible baryons in M33”. Monthly Notices of the Royal Astronomical Society. 342 (1): 199–207. arXiv:astro-ph/0302318. Bibcode:2003MNRAS.342..199C. doi:10.1046/j.1365-8711.2003.06531.x. S2CID 119383732. ↩
-
Michon, Gerard P. “Sizing up the Universe - Stars, Sand and Nucleons”. Retrieved 2010-01-07. ↩ ↩2
-
De Vaucouleurs, Gerard; De Vaucouleurs, Antoinette; Corwin, Herold G.; Buta, Ronald J.; Paturel, Georges; Fouque, Pascal (1991). Third Reference Catalogue of Bright Galaxies. Bibcode:1991rc3..book…D. ↩
-
Gilbert, Karoline M.; Quirk, Amanda C. N.; Guhathakurta, Puragra; Tollerud, Erik; Wojno, Jennifer; Dalcanton, Julianne J.; Durbin, Meredith J.; Seth, Anil; Williams, Benjamin F.; Fung, Justin T.; Tangirala, Pujita; Yusufali, Ibrahim (2022). “The TREX Survey: Kinematical Complexity Throughout M33’s Stellar Disk and Evidence for a Stellar Halo”. The Astrophysical Journal. 924 (2): 116. arXiv:2110.15773. Bibcode:2022ApJ…924..116G. doi:10.3847/1538-4357/ac3480. ↩