NGC 1003

NGC 1003
NGC 1003 from the Hubble Space Telescope
Observation data (J2000[1] epoch)
ConstellationPerseus
Right ascension02h 39m 16.893s[2]
Declination+40° 52′ 20.25″[2]
Redshift0.002090[3]
Heliocentric radial velocity624 km/s[4]
Distance35.9 kly (11.02 kpc)[4]
Group or clusterNGC 1023 group[5]
Apparent magnitude (B)12.1[3]
Characteristics
TypeSAcd[6]
Mass299+28
−26×1010[7] M☉
Mass/Light ratio0.70+0.16
−0.15[7] M☉/L☉
Notable featuresWarped disk[6]
Other designations
NGC 1003, UGC 2137, MCG +07-06-051, PGC 10052[3]
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NGC 1003 is a spiral galaxy at the western edge of the Perseus constellation.[8] It is located at a distance of about 36 million light years from the Milky Way and is receding with a heliocentric radial velocity of 624 km/s.[4] This galaxy was discovered by the Anglo-German astronomer William Herschel on October 6, 1784, who described it as "pretty faint, large, extended 90°±, much brighter middle, mottled but not resolved".[9] It is a member of the NGC 1023 group of galaxies.[5]

The morphological class of NGC 1003 is SAcd, which means it is an unbarred spiral galaxy (SA) with somewhat loosely-wound spiral arms (cd). It is inclined by an angle of 70° to the line of sight from the Earth, with the major axis aligned along a position angle of 276°. The visual disk of the galaxy shows a substantial warping in the eastern side, turning it almost face on. The estimated star formation rate is 0.40 M☉·yr−1.[6] It has a virial mass of 3×1012 M☉ and a mass-to-light ratio of 0.7.[7]

A type Ia supernova[10] was discovered in the galaxy by F. Zwicky in 1937,[11] and subsequently designated SN 1937D.

  1. ^ Cite error: The named reference kopernik was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Skrutskie_et_al_2006 was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference Tully_et_al_2016 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Trentham_Tully_2009 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference Marasco_et_al_2019 was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference Haghi_et_al_2018 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Sinnott_Perryman_1997 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Seligman was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Navasardyan_et_al_2001 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Baade_Zwicky_1938 was invoked but never defined (see the help page).