How to see it
21Eta Cyg has a visual magnitude of about 3.62: under a reasonably dark sky it is typically reachable with the unaided eye.
Sky position
Equatorial coordinates for 21Eta Cyg: right ascension 19h 56m 18s, declination +35° 4′ 60″ (J2000), in the region of the Cygnus constellation (IAU figure Cyg).
Catalog context
21Eta Cyg. It appears in classical and modern catalogs as HIP 98110, HD 188947, Gaia DR3 2059372363884259072. In the SkyKeepsake Cygnus (Cyg) browse hub it sits with other stars of the same IAU figure.
Catalog identifiers
- Gaia
- Gaia DR3 2059372363884259072
- HIP
- 98110
- HD
- 188947
- gaia_dr3
- 2059372363884259072
- Bayer / Flamsteed
- 21Eta Cyg
Also known as
- Gaia DR3 TOP 5M 2059372363884259072
- HD 188947
- HIP 98110
Observed properties
- Visual magnitude
- 3.62