five-and-a-half-magnitude

Updated: May 3, 2025

In omicron^2 we find a star of magnitude four and orange in color, having two blue companions, the first of magnitude seven and a half, distance 107", p. 174°, and the second of magnitude five and a half, distance 358", p. 324°. Farther north is psi, which presents to us the combination of a white five-and-a-half-magnitude star with a lilac star of magnitude seven and a half.

Garrett Putman Serviss - Pleasures of the telescope: An Illustrated Guide for Amateur Astronomers and a Popular: Description of the Chief Wonders of the Heavens for General: Readers