NGC 89

NGC 89
Robert's Quartet galaxy group
NGC 89 (bottom) surrounded by the other galaxies in Robert's Quartet
Observation data (J2000 epoch)
ConstellationPhoenix
Right ascension00h 21m 24.355s[1]
Declination−48° 39′ 55.28″[1]
Redshift0.011074 ± 0.000067[2]
Distance144 ± 10 Mly (44.1 ± 3.1 Mpc)[3]
Apparent magnitude (V)14.18[3]
Characteristics
TypeSB0/a pec[4]
Apparent size (V)0′.957 × 0′.459[1]
Other designations
PGC 1374, ESO 194-G011
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NGC 89 is a barred spiral or lenticular galaxy, part of Robert's Quartet, a group of four interacting galaxies.

This member has a Seyfert 2 nucleus with extra-planar features emitting H-alpha radiation. There are filamentary features on each side of the disk, including a jet-like structure extending about 4 kpc in the NE direction. It may have lost its neutral hydrogen (H1) gas due to interactions with the other members of the clusters—most likely NGC 92.[4]

  1. ^ a b c Cite error: The named reference ApJ131_1163 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Boselli1996 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference ned was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Presotto2009 was invoked but never defined (see the help page).