Polarissima Australis (NGC 2573)
Also known as Polarissima Australis · NGC 2573
Polarissima Australis (NGC 2573) is a galaxy in the constellation Octans, about 84.21 million light-years from Earth.
Facts
| Type | Galaxy (shape 6.3) |
|---|---|
| Constellation | Octans |
| Position (J2000) | 1h 41m 37s, −89° 20′ |
| Distance | 84.21 million light-years (its light set off about 84.21 million years ago) |
| Brightness | magnitude 13.53 (smaller is brighter; the faintest stars the eye sees are about 6) |
| Size on the sky | 0.9′ × 0.3′ (the full Moon is about 31′) |
| Filter | No filter (It shines in starlight of every colour, so a nebula filter would only dim it; a dark sky helps more.) |
| Redshift | z = 0.00822 |
| Studied in | 41 scientific papers (SIMBAD) |
When and how to see it
Polarissima Australis (NGC 2573) is highest in the sky at midnight in October. It never rises from India (about 20° N); from 50° N it never rises. To see it you need a large telescope or long-exposure photos.
Heights are worked out for India and for 50° N. Set your location in Settings to see them for where you are.
For tonight's best time from your own town, the darkness and the Moon, open it on the map and see its "Tonight from your location" card.
Data: SIMBAD (CDS, Strasbourg; the site's weekly copy) · OpenNGC · Data sources & credits