Acrab

What this is

Acrab is a fixed star the chart engine carries, at magnitude 2.56.

What it governs

The catalogue holds this star's position and its own motion, not a body of lore about it — a star's apparent place is its J2000 position carried forward and referred to the ecliptic of the date, exactly as a planet's is.

Correspondences

magnitude

2.56

right ascension

241.3593°

declination

-19.8055°

proper motion

-6.75, -24.89 mas, yr