The Vault — Astronomy and Space _□✕

Astronomy and Space

Alpha Serpentis

Alpha Serpentis
Alpha Serpentis

Alpha Serpentis or α Serpentis, formally named Unukalhai (), is a star in the head (Serpens Caput) of the equatorial constellation of Serpens. With an apparent visual magnitude of 2.6, this star is the brightest in the constellation and it can be viewed with the naked eye from most of the Earth. Parallax measurements yield an estimated distance of about 74 light-years (23 parsecs) from the Sun.

Also on this shelf

HD 1976.

Hisaki (satellite).

See also

Uncatalogued shelf

Text from Wikipedia; plate via Wikimedia Commons. Text CC BY-SA 4.0; plate freely licensed (see Commons). Source record. Images and catalogue data are reproduced from open-access collections.

Depth 49
Shelf 49014cbf8d4c74
25,934 catalogued holdings
3 ways on