SkyRef / Stars

Alphard

α Hya. Magnitude 1.98, orange-red. Comfortably visible to the naked eye from a suburban sky.

The numbers

Designationα Hya
Magnitude1.98
Colourorange-red
Right ascension9.460h
Declination-8.66°
B−V index1.44
CatalogueHR 3748

What you are looking at

Astronomers call it α Hya — the Bayer designation, which reads as a Greek letter ranking its brightness within its constellation. Alphard is the name people actually use.

Alphard shines at magnitude 1.98, making it comfortably visible to the naked eye from a suburban sky. Its B−V colour index of 1.44 makes it orange-red to the eye, corresponding to a surface temperature of under 4,000 K.

It sits at right ascension 9.46 hours and declination -8.7°. It straddles the celestial equator, so it is visible from essentially anywhere on Earth at the right time of year.

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Other named stars

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