Q581019
Sign in to saveAlso known as New General Catalogue 3766, Caldwell 97, C 97
open cluster in the constellation Centaurus
Key facts
- Right ascension
- 11 36.1
- Declination
- − 61° 37 ′
- Distance
- 5.5 kly
- Apparent dimensions v
- 12.0 ′
- Radius
- 9.6 ly
- Other designations
- NGC 3766, Caldwell 97, Collinder 248, Melotte 107, Dunlop 289, Lacaille III.7, C1133-613
- Constellation
- Centaurus
via Wikipedia infobox
Wikidata facts
- Distance from Earth
- 1.5
- Image
- NGC 3766 in Cen.jpg
Show 10 more facts
- Commons category
- NGC 3766
- catalog code
- [KPS2012] MWSC 1958
- spectral class
- B1.7
- time of discovery or invention
- 1751-00-00
- apparent magnitude
- 5.3
- right ascension
- 174.0750
- declination
- -61.6150
- radial velocity
- -15.6
- right ascension component of proper motion
- -7.08
- declination component of proper motion
- 1.00
Sources (1)
via Wikidata · CC0
~1 min read
Article
Map showing the location of NGC 3766. NGC 3766 (also known as Caldwell 97) is an open star cluster in the southern constellation Centaurus. It is located in the vast star-forming region known as the Carina molecular cloud, and was discovered by Nicolas Louis de Lacaille during his astrometric survey in 1751–1752. At a distance of about 1745 pc, the cluster subtends a diameter of about 12 minutes of arc.
There are 137 listed stars, but many are likely non-members, with only 36 having accurate photometric data. It has a total apparent magnitude of 5.3 and integrated spectral type of B1.7. NGC 3766 is relatively young, with an estimated age of log (7.160) or 14.4 million years, and is approaching us at 14.8 km/s. This cluster contains eleven Be stars, two red supergiants and four Ap stars.