Star cluster with a nebula · Cepheus
NGC 7129 Small Cluster Nebula
Also known as: LBN 497
mag 11.52.1′ across
About
NGC 7129, the Small Cluster Nebula, is a star cluster with a nebula of magnitude 11.5 in Cepheus, about 2.1′ across.
How to find it
- NGC 7129 is in the constellation Cepheus.
- 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 14° 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)Too faint for most binoculars.
- Telescope (6–8 inch)A faint glow — a UHC or OIII filter and a dark sky make the difference.
For a dark country sky with no Moon. From a city, faint galaxies and nebulae can disappear completely.
Facts
| Designations | NGC 7129, LBN 497 |
|---|---|
| Type | Star cluster with a nebula |
| Magnitude | 11.5The smaller the number, the brighter. |
| Apparent size | 2.1′the full Moon is 31′ across |
| Constellation | Cepheus |
| Right ascension (J2000) | 21h 42m 59.0s |
| Declination (J2000) | +66° 06′ 47″ |
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 →