Search and compare thousands of words and phrases in British Sign Language (BSL). The largest collection online.
How to sign: a system of two stars that revolve around each other under their mutual gravitation
Similiar / Same: binary, double star
Within this category: Aldebaran, Algol, Alpha Centauri, Altair, Antares, Epsilon Aurigae, Procyon, Rigel, Sirius, Vega