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
The hydrogen line, 21 centimeter line, or H I line is the electromagnetic radiation spectral line that is created by a change in the energy state of neutral hydrogen atoms. This electromagnetic radiation has a precise frequency of , w ...
(H1) gas due to interactions with the other members of the clusters—most likely
NGC 92.
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References
External links
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NGC 89
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{{DEFAULTSORT:NGC 0089
0089
01374
Phoenix (constellation)
Robert's Quartet
Barred spiral galaxies
194-11
18340930