Open cluster · Lacerta
NGC 7243
Also known as: C16
mag 6.415′ across
About
NGC 7243 is an open cluster of magnitude 6.4 in Lacerta, about 15′ across.
How to find it
- NGC 7243 is in the constellation Lacerta.
- Best evenings: around early 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 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 knot of stars, partly resolved.
- 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 7243, C16 |
|---|---|
| Type | Open cluster |
| Magnitude | 6.4The smaller the number, the brighter. |
| Apparent size | 15′the full Moon is 31′ across |
| Constellation | Lacerta |
| Right ascension (J2000) | 22h 15m 08.6s |
| Declination (J2000) | +49° 53′ 51″ |
More in Lacerta
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 →