Alioth

What this is

Alioth is a fixed star the chart engine carries, at magnitude 1.76.

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

1.76

right ascension

193.5073°

declination

55.9598°

proper motion

+111.74, -8.99 mas, yr