- Heptagram (Wikipedia)
A heptagram, septagram, septegram or septogram is a seven-point star drawn with seven straight strokes.
- Alpha Corvi (Wikipedia)
Alpha Corvi (α Corvi, abbreviated Alpha Crv, α Crv), also named Alchiba /ˈælkɪbə/, is an F-type main-sequence star and, despite its “alpha” designation, is the fifth-brightest star in the constellation of Corvus. Based on parallax measurements made by the Gaia mission, it is approximately 49 light-years from the Sun.