NGC 7090

NGC 7090
NGC 7090 image from the Hubble Space Telescope combines orange light (colored blue here), infrared (colored red) and emissions from glowing hydrogen gas (also in red)[1][2]
Observation data (J2000 epoch)
ConstellationIndus
Right ascension21h 36m 28.865s[3]
Declination−54° 33′ 26.35″[3]
Redshift0.002859±0.000020[4]
Heliocentric radial velocity846 km/s[5]
Distance31.0 Mly (9.5 Mpc)[6]
Apparent magnitude (V)10.51[7]
Characteristics
TypeScd[8]
MassStellar: 5.47×109[6] M☉
Other designations
IRAS 21329-5446, 2MASX J21362886-5433263, NGC 7090, LEDA 67045[7]
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NGC 7090 is a spiral galaxy[8] in the southern constellation of Indus located about 31 million light-years away.[6] English astronomer John Herschel first observed this galaxy on 4 October 1834.[1][2]

The morphological class of NGC 7090 is Scd,[8] indicating it is a spiral with loosely-wound and somewhat disorganized arms. The galactic plane is inclined at an angle of 89° to the line of sight from the Earth,[8] giving it an edge-on view. The combined mass of the stars in this galaxy is 5.5 billion times the mass of the Sun (M☉), while the star formation rate is ~0.5 M☉·yr−1.[6] As a result of star formation, the diffuse ionized gas in the galaxy has a complex organization, showing filaments, bubbles, and super-shells.[9]

Three transient ultraluminous X-ray sources have been detected in NGC 7090.[10][11]

  1. ^ a b Cite error: The named reference Hubble2012 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference esa/hubble was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Skrutskie_et_al_2006 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference de_vaucoulerus_et_al_1991 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Tully_et_al_2016 was invoked but never defined (see the help page).
  6. ^ a b c d Cite error: The named reference Lianou_et_al_2019 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference simbad was invoked but never defined (see the help page).
  8. ^ a b c d Cite error: The named reference Heesen_et_al_2016 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Rossa_et_al_2012 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Liu_et_al_2019 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Walton_et_al_2021 was invoked but never defined (see the help page).