NGC 3044

NGC 3044
legacy surveys image of NGC 3044
Observation data (J2000 epoch)
ConstellationSextans
Right ascension09h 53m 40.884s[1]
Declination+01° 34′ 46.74″[1]
Heliocentric radial velocity1,289 km/s[2]
Galactocentric velocity1,130 km/s[2]
Distance67 Mly (20.6 Mpc)[2]
Group or clusterLeo Cloud[3]
Apparent magnitude (V)12.5[4]
Apparent magnitude (B)12.4[5]
Characteristics
TypeSBc[6]
Mass6.4×1010[7] M☉
Notable featuresEdge-on galaxy
Other designations
IRAS 09511+0148, 2MASX J09534088+0134467, NGC 3044, UGC 5311, LEDA 28517, MCG +00-25-031[8]

NGC 3044 is a barred spiral galaxy in the equatorial constellation of Sextans. It was discovered on December 13, 1784, by German-born English astronomer William Herschel.[9][10] In 1888, Danish astronomer J. L. E. Dreyer described it as "very faint, very large, very much extended 122°".[11] It is located at an estimated distance of 67 million light years.[2] In the B band of the UBV photometric system, the galaxy spans 4.70′ by 0.80′[5] with the major axis aligned along a position angle of 113°.[7] It is a relatively isolated galaxy with no nearby companions.[7] R. B. Tully in 1988 assigned it as a member of the widely displaced Leo Cloud.[3]

The morphological classification of NGC 3044 is SBc,[6] indicating a barred spiral (SB) with somewhat loosely-wound spiral arms (c). It is being viewed edge-on, with a galactic plane that is inclined at an angle of 79°±4° to the plane of the sky.[12] The disk appears lob-sided and disturbed, suggesting a recent merger or interaction. There is a diffuse ionized gas extending to 1 kpc above the center of the plane.[7]

The stars in the galaxy have a combined mass of approximately 1.01×1010 M☉,[6] and the star formation rate is 2.77 M☉·yr–1.[6] The total mass of the atomic gas in this galaxy is 3.5×109 M☉,[7] and it has a dust mass of 1.6×108 M☉.[3] The galaxy as a whole has a dynamic mass of 6.4×1010 M☉.[7]

A supernova was observed on March 13, 1983, at an offset 29″ east, 11″ south of NGC 3044.[13] Designated SN 1983E, it was a suspected type II supernova that reached a peak magnitude of 14.9 (B) around March 15.[14]

  1. ^ a b Cite error: The named reference Skrutskie_et_al_2006 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference Tully_et_al_2016 was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference Irwin_et_al_2013 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Cavin_2011 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Nilson_1973 was invoked but never defined (see the help page).
  6. ^ a b c d Cite error: The named reference Hodges-Kluck_et_al_2016 was invoked but never defined (see the help page).
  7. ^ a b c d e f Cite error: The named reference Zschaechner_et_al_2015 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Erdmann_2007 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Seligman_2021 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Sulentic_et_al_1973 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Singal_et_al_1989 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference Kosai_et_al_1983 was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference Barbon_et_al_1989 was invoked but never defined (see the help page).