Open cluster · Auriga
NGC 1664 4-H cluster
mag 7.611′ across
About
NGC 1664, the 4-H cluster, is an open cluster of magnitude 7.6 in Auriga, about 11′ across.
How to find it
- NGC 1664 is in the constellation Auriga.
- Best evenings: around mid-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 36° 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 faint, grainy patch.
- Telescope (6–8 inch)A group of faint stars.
For a dark country sky with no Moon. From a city, faint galaxies and nebulae can disappear completely.
Facts
| Designations | NGC 1664 |
|---|---|
| Type | Open cluster |
| Magnitude | 7.6The smaller the number, the brighter. |
| Apparent size | 11′the full Moon is 31′ across |
| Constellation | Auriga |
| Right ascension (J2000) | 04h 51m 05.4s |
| Declination (J2000) | +43° 40′ 34″ |
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 →