Lat: 56.4°S, Long: 22.0°E, Diam: 28 km, Depth: 2.28 km, Rükl: 74
The rille on the floor of this otherwise undistinguished crater is remarkable. Rilles normally occur in mare lavas, although some do cut light plains. Considering the scarcity of rilles within craters in the southern higlands, especially far from the maria, this is unusual. With a diameter of 28 km, Tannerus may have originally had a shape like Proclus, but it appears to have been partially filled with a floor-smoothing material.
- Depth data from Kurt Fisher database
- Westfall, 2000: 2.28 km
- Viscardy, 1985: 1.7 km
- Cherrington, 1969: 1.7 km
- Based on the shadows from the eastern rim in LO-IV-094H, LTVT returns a depth of 1,840 m. Elger appears to be mistaken about the existence of a central peak. - Jim Mosher
- Adam Tanner (in Latin, Tannerus) (April 14, 1572 – May 25, 1632) was an Austrian Jesuit professor of mathematics and philosophy.
- Rima Tannerus and Rimae Tannerus are two unofficial names from an (almost daily) explorer of the moon's surface for the rille (or the system of rilles) on the floor of Tannerus.