Elliptical galaxy · Pegasus
NGC 7317 Stephan's Quintet
mag 13.748″ across
About
NGC 7317, the Stephan's Quintet, is an elliptical galaxy of magnitude 13.7 in Pegasus, about 48″ across.
How to find it
- NGC 7317 is in the constellation Pegasus.
- Best evenings: around mid-October it is highest at about 9 pm (10 pm in summer time); a month earlier, two hours later.
- Where on Earth: it is seen well, at least 10° up, from north of 46° S.
When it rises and sets tonight, how high it climbs and how much the Moon gets in the way are worked out in your browser for your place.
What you will see
- EyesNot visible to the naked eye.
- Binoculars (10×50)Too faint for binoculars.
- Telescope (6–8 inch)Very hard or out of reach: it needs a dark sky and a larger telescope, or a camera.
For a dark country sky with no Moon. From a city, faint galaxies and nebulae can disappear completely.
Facts
| Designations | NGC 7317, PGC 69256 |
|---|---|
| Type | Elliptical galaxy (E) |
| Magnitude | 13.7The smaller the number, the brighter. |
| Apparent size | 48″ × 48″the full Moon is 31′ across |
| Surface brightness | 23.0 mag/arcsec²Average over its disc, in the blue band: the lower the number, the easier it is to see. |
| Constellation | Pegasus |
| Right ascension (J2000) | 22h 35m 51.9s |
| Declination (J2000) | +33° 56′ 42″ |
Sources and credits
Catalog data: OpenNGC by Mattia Verga, CC BY-SA 4.0, and d3-celestial by Olaf Frohn, BSD 3-Clause. All data sources →