Messier 33

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Triangulum Galaxy
VST snaps a very detailed view of the Triangulum Galaxy.jpg
Galaxy Messier 33 in Triangulum
Observation data (J2000 epoch)
Pronunciation /trˈæŋɡjʊləm/
Constellation Triangulum
Right ascension 01h 33m 50.02s[1]
Declination +30° 39′ 36.7″[1]
Redshift -0.000607 ± 0.000010[1]
Helio radial velocity -179 ± 3 km/s[2]
Galactocentric velocity -44 ± 6 km/s[2]
Distance (comoving) 970 kpc (3.2 Mly)[3]
Apparent magnitude (V) 5.72[1]
Characteristics
Type SA(s)cd[2]
Mass 5 × 1010[4] M
Number of stars 40 billion (4×1010)[6]
Size 18.74 kpc (61,120 ly)
(diameter; 25.0 mag/arcsec2 B-band isophote)[5][6]
Apparent size (V) 70.8 × 41.7 moa[1]
Other designations
NGC 0598, MCG+05-04-069, UGC 1117, PGC 5818[2]

Messier 33 (M33, NGC 598) sī chi̍t-ê chhiⁿ-hē, tī thiⁿ-kiû ê ūi-tì tī Triangulum-chō.

Tsù-kái[siu-kái | kái goân-sí-bé]

  1. 1.0 1.1 1.2 1.3 1.4 Ín-iōng chhò-gō͘: Bû-hāu ê <ref> tag; chhōe bô chí-miâ ê ref bûn-jī SIMBAD-M33
  2. 2.0 2.1 2.2 2.3 Ín-iōng chhò-gō͘: Bû-hāu ê <ref> tag; chhōe bô chí-miâ ê ref bûn-jī ned
  3. Ín-iōng chhò-gō͘: Bû-hāu ê <ref> tag; chhōe bô chí-miâ ê ref bûn-jī vivian
  4. Ín-iōng chhò-gō͘: Bû-hāu ê <ref> tag; chhōe bô chí-miâ ê ref bûn-jī mnras342_1
  5. 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. 
  6. 6.0 6.1 Ín-iōng chhò-gō͘: Bû-hāu ê <ref> tag; chhōe bô chí-miâ ê ref bûn-jī michon