NGC 1022

NGC 1022
Observation data (J2000 epoch)
ConstellationCetus
Right ascension02h 38m 32.74s[1]
Declination−06° 40′ 38.96″[1]
Redshift0.004847[1]
Heliocentric radial velocity1,453 km/s
Distance67.7 Mly (20.75 Mpc)[1]
Apparent magnitude (V)11.34±0.13[2]
Apparent magnitude (B)12.09±0.13[2]
Characteristics
TypeSBa[1]
(R')SB(s)a;HII[2]
SBa(r)p[3]
Apparent size (V)2.4′ × 2.0′[2]
Other designations
NGC 1022, PGC 10010
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NGC 1022 is a barred spiral galaxy located approximately 68[1] million light years away in the equatorial constellation of Cetus. It was discovered on September 10, 1785, by William Herschel. NGC 1022 is a member of the Cetus-Aries group of galaxies.[3]

This galaxy has a morphological classification SBa,[1] indicating a central bar and tightly wound spiral arms. The elliptical outline of the galaxy has an isophotal axis ratio of 0.78[1] with an angular size of 2.4′ by 2.0′ and a position angle of 115°.[2] The galactic plane is inclined at an angle of 24° to the line of sight from the Earth. The central bar is boxy in shape with narrow spurs that are offset from the main axis.[4]

NGC 1022 is forming new stars at an estimated rate of 1.1 solar masses per year. Infrared observations of the nucleus suggests a high rate of star formation activity.[5] The circumnuclear region is home to three giant H II regions with one at the nucleus, a second to the northeast, and the third slightly to the northwest.[3] The galaxy was observed as part of a Hubble study of black holes.[6]

  1. ^ a b c d e f g h Cite error: The named reference Ann_et_al_2015 was invoked but never defined (see the help page).
  2. ^ a b c d e Cite error: The named reference Armando_et_al_2007 was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference Franco_et_al_2000 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Erwin_Debattista_2013 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Garcia-Barreto_et_al_1991 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Garner2020 was invoked but never defined (see the help page).