Stephan's Quintet (NGC 7319) — Sbc in Pegasus
The Stephan's Quintet (NGC 7319) as a framed fine art print. Sbc in Pegasus, 1.7 arcminutes across, its light 315 million years old. Measured by HyperLEDA…
About Stephan's Quintet (NGC 7319)
Stephan's Quintet is a group of five galaxies, four of which are interacting in a tight gravitational dance. NGC 7319 is one of the four. The group is one of the most studied compact groups in the sky, and it was among the first images released from the James Webb Space Telescope.
What you are looking at
NGC 7319 is a spiral of the same broad class astronomers give the Milky Way: a moderate bulge and clearly drawn arms. It is tilted about 53° to our line of sight, enough to show both the shape of its arms and the depth of its disc. From edge to edge its visible disc spans about 151,000 light-years, about 1.5 times the width of the Milky Way.
What astronomers have recorded
SIMBAD, the reference database astronomers use, classes it as a Seyfert galaxy: its nucleus is lit by gas falling into its central black hole, though dust hides part of that glow from us. It belongs to Hickson Compact Group 92, one of the hundred tight knots of galaxies catalogued by Paul Hickson in 1982. Boris Vorontsov-Velyaminov listed it as VV 288 in his catalogue of interacting galaxies. One supernova has been recorded in it: SN 1971P. It is cited in 331 scientific papers indexed by SIMBAD, and recorded there under 29 different catalogue designations.
When this light set out
What a telescope records of NGC 7319 is light that left it about 315 million years ago; on Earth, giant insects flew over coal forests. The galaxy is moving away from us at about 6,643 km/s (14.9 million mph), carried by the expansion of the universe.
Finding it in the sky
In the sky, NGC 7319 sits within the constellation Pegasus. It is best placed on autumn evenings: around 9:30 pm in October it stands about 84° high in the south, seen from the middle of the United States.
Its neighbours
At almost the same distance from us, and so its neighbours in space as well as on the sky: NGC 7337 (0.5° away on the sky, at least 2,670,000 light-years from it); NGC 7335 (0.5° away on the sky, at least 2,930,000 light-years from it); UGC 12121 (0.9° away on the sky, at least 5,070,000 light-years from it); UGC 12157 (1.5° away on the sky, at least 8,320,000 light-years from it), and 5 more.
By apparent size it is number 2,649 of the 12,657 galaxies on the Galaxy Origins register.
Measurements
| Catalogue | PGC 69269 |
|---|---|
| Morphological type | Sbc |
| Angular diameter | 1.67′ |
| Right ascension | 22h36m03.6s |
| Declination | +33°58′33.3″ |
| Constellation | Pegasus |
| Inclination | 53.3° |
| Light travel time | 315 million years |
| Bar | yes, from the catalogue |
Check every figure above in the NASA/IPAC Extragalactic Database
What is sold
A print of this galaxy and the record of the calculation, once. When it sells it leaves the register and is not offered again. We assign no names and no ownership — nobody can sell you those.
At 1.7 arcminutes this is a Collection galaxy, which is the tier where a real photograph shows its shape and how far it is tilted away from us. The tier comes from the measured diameter, not from a price list.
Take this galaxy — $590 Browse the Collection