Open cluster · Perseus
NGC 1545 m & m Double Cluster
mag 6.24.2′ across
About
NGC 1545, the m & m Double Cluster, is an open cluster of magnitude 6.2 in Perseus, about 4.2′ across.
How to find it
- NGC 1545 is in the constellation Perseus.
- Best evenings: around early January 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 30° 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)A small hazy spot.
- Telescope (6–8 inch)Dozens of stars, many sharp and some coloured.
For a dark country sky with no Moon. From a city, faint galaxies and nebulae can disappear completely.
Facts
| Designations | NGC 1545 |
|---|---|
| Type | Open cluster |
| Magnitude | 6.2The smaller the number, the brighter. |
| Apparent size | 4.2′the full Moon is 31′ across |
| Constellation | Perseus |
| Right ascension (J2000) | 04h 20m 56.3s |
| Declination (J2000) | +50° 15′ 19″ |
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 →