- Mirfak (stars.astro.illinois.edu)
MIRFAK (Alpha Persei). Perseus, the ancient hero who rescued Andromeda, climbs the northeastern sky in northern autumn evenings, bright Mirfak marking his side amidst a lovely stream of stars that lies within the northern-hemisphere autumn Milky Way.
- Langrenus (crater) (Wikipedia)
Langrenus is an impact crater located near the eastern lunar limb. The feature is circular in shape, but appears oblong due to foreshortening. It lies on the eastern shore of the Mare Fecunditatis. To the south is the overlapping crater pair Vendelinus and the smaller Lamé.
