How to see it
21 Hya has a visual magnitude of about 6.07: it usually needs binoculars or a small telescope, especially from light-polluted sites.
Sky position
Equatorial coordinates for 21 Hya: right ascension 9h 12m 26s, declination −7° 6′ 35″ (J2000), in the region of the Hydra constellation (IAU figure Hya).
Catalog context
21 Hya. It appears in classical and modern catalogs as HIP 45184, HD 79193, Gaia DR3 5745846869663201024. In the SkyKeepsake Hydra (Hya) browse hub it sits with other stars of the same IAU figure.
Catalog identifiers
- Gaia
- Gaia DR3 5745846869663201024
- HIP
- 45184
- HD
- 79193
- gaia_dr3
- 5745846869663201024
- Bayer / Flamsteed
- 21 Hya
Observed properties
- Visual magnitude
- 6.07