BRIEF DESCRIPTION
A very interesting landscape with a great variety of lunar formations. The clefts in the crater Burg, and on the floor of the walled plain Posidonius, as well as the rilles Rima Daniel, all demand attention. Dark areas include the lakes Lacus Mortis, Lacus Somniorum and the NE edge of Mare Serenitatis. Refer to your Antonin Rukl lunar atlas chart, page 55.

EARTH-BASED TELESCOPIC IMAGES:
Image - Hercules & Atlas (Legault)
Image - Hercules (Jomo)
Image - Posidonius (Ferreira)
Image - Posidonius (Legault)
Image - Posidoius (Misaka/Higashida)
Image - Posidonius (Cidadao)
Image - Mortis, Lacus (Misaka/Higashida)

LUNAR ORBITER IMAGES:
Lunar Orbiter Database
Burg, 40 km
 http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-86H2.jpg
 http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-91H2.jpg
Burg, Rimae
Chacornac, 51 km
 http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-78H3.jpg
Chacornac, Rimae
Daniell, 30x23 km
 http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-86H2.jpg
Daniell, Rimae
Grove, 28 km
 http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-86H2.jpg
 http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-79H2.jpg
Hercules, 69 km
 http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-79H3.jpg
 http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-86H3.jpg
 http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-79H2.jpg
 http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-74H2.jpg
Luther, 9.5 km
 http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-91H1.jpg
Mason, 33x43 km
 http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-86H2.jpg
 http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-91H2.jpg
Mortis, Lacus
Plana, 44 km
 http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-91H2.jpg
 http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-86H2.jpg
Posidonius, 95 km
 http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-86H1.jpg
 http://cass.jsc.nasa.gov/research/lunar_orbiter/img/4-79H1.jpg
Posidonius, Rimae
Image - lo4-86-H3 - Posidonius Rille
Serenitatis, Mare
Somniorum, Lacus
Williams, 36 km

APOLLO IMAGES:
Image - AS15-91-12366 - Apollo 15 view of Posidonius
Image - AS17-0940 (M) - Apollo 17 view of Mare Serenitatis

RESEARCH UPDATES:
Hercules (Lunascan)
AS17-0940(M) View of Mare Serenitatis and Apollo 17 site (AOTM, SP-362)
Dorsa Smirnov and Posidonius (Lunascan)
Posidonius (The Moon - Wilkens & Moore)
Posidonius - Apollo Over The Moon (SP-362, 197)
LSAP Data (A.L.P.O.)
Atlas (Roger)
Posidonius (A.L.P.O.).