multiple star system in the constellation Ophiuchus
Rho Ophiuchi | Memory Beta, non-canon Star Trek Wiki | Fandom
The age of the local interstellar bubble
Catalogue of Stellar Photometry in Johnson's 11-color system
Sloan magnitudes for the brightest stars
Validation of the new Hipparcos reduction
Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system