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), on the celestial sphere.
Catalog context
21Eta Cyg. It appears in classical and modern catalogs as HIP 98110, HD 188947, Gaia DR3 2059372363884259072.
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