Spiral galaxy · Grus
NGC 7590 Grus Quartet
mag 12.33′ across
About
NGC 7590 (Grus Quartet) is a spiral galaxy of magnitude 12.3 in Grus, about 3′ across.
How to find it
- NGC 7590 is in the constellation Grus.
- Best evenings: around late 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 south of 38° N.
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)A small, faint smudge that needs a dark sky and patience.
For a dark country sky with no Moon. From a city, faint galaxies and nebulae can disappear completely.
Facts
| Designations | NGC 7590, PGC 71031 |
|---|---|
| Type | Spiral galaxy (Sbc) |
| Magnitude | 12.3The smaller the number, the brighter. |
| Apparent size | 3′ × 1.2′position angle 34°; the full Moon is 31′ across |
| Surface brightness | 22.5 mag/arcsec²Average over its disc, in the blue band: the lower the number, the easier it is to see. |
| Constellation | Grus |
| Right ascension (J2000) | 23h 18m 54.8s |
| Declination (J2000) | −42° 14′ 21″ |
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 →