Key facts
- Right ascension
- 19 37 17
- Declination
- +46 ° 23 ′ 18 ″
- Distance
- 3600 ly (1107 pc )
- Apparent dimensions v
- 13'
- Estimated age
- 1.00±0.17 Gyr
- Other designations
- Cr 402
- Constellation
- Cygnus
via Wikipedia infobox
~3 min read
Encyclopedic overview
NGC 6811 is an open cluster in the constellation of Cygnus, near the constellation of Lyra. It has an angular size half that of the full Moon and includes about 1000 stars of roughly similar magnitude. It has also been called "The Hole in the Cluster" or "Hole in a Cluster" because of its dark center.
Features
Excerpted from Wikipedia’s “Q1147831” article, available under the CC BY-SA 4.0 licence.