How to see it
40 Per has a visual magnitude of about 4.92: under a reasonably dark sky it is typically reachable with the unaided eye.
Sky position
Equatorial coordinates for 40 Per: right ascension 3h 42m 23s, declination +33° 57′ 54″ (J2000), in the region of the Perseus constellation (IAU figure Per).
Catalog context
40 Per. It appears in classical and modern catalogs as HIP 17313, HD 22951, Gaia DR3 218170461600456576. In the SkyKeepsake Perseus (Per) browse hub it sits with other stars of the same IAU figure.
Catalog identifiers
- Gaia
- Gaia DR3 218170461600456576
- HIP
- 17313
- HD
- 22951
- gaia_dr3
- 218170461600456576
- Bayer / Flamsteed
- 40 Per
Also known as
- Gaia DR3 TOP 5M 218170461600456576
- HD 22951
- HIP 17313
Observed properties
- Visual magnitude
- 4.92