Vallis Alpes, a 166-km valley, bisects the Montes Alpes range.
Date: February 19, 2013
Location: Dominion Astrophysical Observatory, Victoria, BC
Lunation: 10 days
Optics: TeleVue NP-127is with 2.5x Powermate, f/13
Mount: Paramount ME
Camera: 41AF02.AS Imaging Source Camera