How to see it
HIP 21551 has a visual magnitude of about 9.75: it is a telescope star and remains difficult or invisible to the naked eye even in good conditions.
Sky position
Equatorial coordinates for HIP 21551: right ascension 4h 37m 39s, declination +23° 46′ 56″ (J2000), in the region of the Taurus constellation (IAU figure Tau).
Catalog context
HIP 21551. It appears in classical and modern catalogs as HIP 21551, HD 284572, Gaia DR3 146780236758907264. In the SkyKeepsake Taurus (Tau) browse hub it sits with other stars of the same IAU figure.
Catalog identifiers
- Gaia
- Gaia DR3 146780236758907264
- HIP
- 21551
- HD
- 284572
- gaia_dr3
- 146780236758907264
Also known as
- Gaia DR3 TOP 5M 146780236758907264
- HD 284572
Observed properties
- Visual magnitude
- 9.75