Tannerus (crater) explained

Coordinates:	-54.6°N 22°W
Diameter:	29 km
Depth:	1.8 km
Colong:	339
Eponym:	Adam Tanner

Tannerus is a small lunar impact crater that is located in the rugged southern highlands of the Moon. It lies within a couple of crater diameters of Asclepi to the northeast, and some distance due east of Jacobi.

The rim of this crater is very close to circular, with only a slight inward bulge along the north edge where it is joined to Tannerus P. The edge is sharp and well-defined, although there are tiny impacts along the rim in the west and south. The crater floor is level and free of markings or features of note.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Tannerus.

Tannerus	Latitude	Longitude	Diameter
A	57.5° S	18.2° E	5 km
B	57.5° S	19.7° E	14 km
C	55.3° S	22.7° E	16 km
D	55.8° S	18.0° E	32 km
E	56.1° S	19.6° E	26 km
F	55.0° S	22.1° E	36 km
G	55.1° S	16.2° E	22 km
H	54.2° S	22.7° E	20 km
J	57.2° S	24.6° E	12 km
K	55.5° S	20.7° E	8 km
L	57.5° S	22.3° E	7 km
M	54.9° S	20.9° E	6 km
N	55.9° S	24.1° E	10 km
P	55.6° S	21.9° E	20 km

References

• Book: Andersson . L. E. . Whitaker . E. A. . Ewen Whitaker . 1982 . NASA Catalogue of Lunar Nomenclature . NASA RP-1097 .
• Web site: Blue . Jennifer . July 25, 2007 . Gazetteer of Planetary Nomenclature . . 2007-08-05 .
• Book: Bussey . B. . Ben Bussey . Spudis . P. . Paul Spudis . 2004 . The Clementine Atlas of the Moon . . New York . 978-0-521-81528-4 .
• Book: Cocks . Elijah E. . Cocks . Josiah C. . 1995 . Who's Who on the Moon: A Biographical Dictionary of Lunar Nomenclature . Tudor Publishers . 978-0-936389-27-1 .
• Web site: McDowell . Jonathan . July 15, 2007 . Lunar Nomenclature . . 2007-10-24 .
• Menzel. D. H.. Minnaert. M.. Levin. B.. Dollfus. A.. Bell. B.. Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU. 10.1007/BF00171763. Space Science Reviews. 12. 2. 136–186. 1971. 1971SSRv...12..136M. 122125855.
• Book: Moore , Patrick . Patrick Moore

. Patrick Moore . 2001 . On the Moon . . 978-0-304-35469-6 .

• Book: Price , Fred W. . 1988 . The Moon Observer's Handbook . Cambridge University Press . 978-0-521-33500-3 .
• Book: Rükl , Antonín . Antonín Rükl

. Antonín Rükl . 1990 . Atlas of the Moon . . 978-0-913135-17-4 .

• Book: Webb , Rev. T. W. . Thomas William Webb

. Thomas William Webb . 1962 . Celestial Objects for Common Telescopes . 6th revised . Dover . 978-0-486-20917-3 .

• Book: Whitaker , Ewen A. . Ewen Whitaker

. Ewen Whitaker . 1999 . Mapping and Naming the Moon . Cambridge University Press . 978-0-521-62248-6 .

• Book: Wlasuk , Peter T. . 2000 . Observing the Moon . Springer . 978-1-85233-193-1 .