Word of the Week: Local Solar Time
A system of time based on the position of the Sun over a planetary body. It is noon at a specific location when the Sun is directly overhead. It is midnight at the location 180 degrees away — on the opposite side of the planetary body.
On Bennu, the OSIRIS-REx team defines the viewing conditions for observations and navigation activities based on a day that divides the asteroid into 24 equal parts (hours). One Bennuvian day lasts 4.3 Earth hours, and one Bennuvian hour lasts 10.75 Earth minutes.
Credit: University of Arizona
full (1888x1275) | thumbnail (150x150) | medium (300x203) | medium_large (640x433) | large (640x433) | 1536x1536 (1536x1037) | 2048x2048 (1888x1275) | banner-xm (427x240) | banner-sm (640x360) | banner-med (854x480) | banner-large (1024x576) | banner-full (1280x720)