The Moon
Earth's Only Natural SatelliteAlso called Luna, Selene and Artemis.
Distance: Varies (about 240,000 miles).
Size: 2160 miles.
Surface Temperature: 273ºF to -244ºF.
Orbital Period: 27.3 days.
Rotational Period: Also 27.3 days.
Because the orbital and rotational periods are the same, the same side of the moon always faces Earth. However, it wobbles slightly. This motion, called libration, can be seen in the Lunar Phase Video.
It can be viewed in several formats:
MOV • MP4 • AVILearn more about the moon here:
http://en.wikipedia.org/wiki/Moon
http://www.nineplanets.org/luna.htmlClick on a photo to enlarge
A mosaic of the eclipse. Exposures were taken 20 minutes apart. The Harvest Moon
10.06.2006 A full moon colorized in PhotoShop by enhancing the color saturation. Shot at prime focus,
Canon 10D camera,
ISO 200, 1/500th sec.
02.01.2007 An exceptionally sharp image of a nearly full moon. 08.06.2006 Another moon colorized in PhotoShop by enhancing the color saturation. This one turned out green. Earthshine. The dark part of the moon is illuminated by sunlight reflected from the Earth.
06.27.2006 The moon just over one day old.
06.27.2006 Arzachel Crater
08.16.2006 A heavily cratered area.
08.15.2006 A wider view of the heavily cratered area shown above.
08.15.2006 Crater Tycho.
12.04.2006 Mare Imbrium (top), Mare Serenitatis (bottom).
08.15.2006
Mare Imbrium. The same area shown at left, shot one day later.
08.16.2006 Crater Tycho.
02.09.2006 A large lunar sea.
06.05.2006 A lunar sea (bottom) and craters.
06.05.2006 Lunar seas (maria).
06.11.2006A large area of maria. Note the rays of meteor impacts (ejecta) at bottom.
06.10.2006 More lunar seas.
06.13.2006 Maria and craters.
06.13.2006 Crater Tycho and surrounding craters.
06.15.2006Detail along the lunar limb.
07.07.2006 Crater Tycho.
07.07.2006A large image showing the entire terminator.
The Moon photographed in 1999 on negative film.A lunar halo. These are caused by ice crystals in the stmosphere.
Daytime moon with bird. Lunar halo. Focal length 8mm. Moon / Venus conjunction.
05.19.2007 Moon / Venus conjunction.
03.21.2007 Moon / Venus conjunction.
03.21.2007Moon / Mars / Pleiades grouping. 08.07.2007
Moon / Mars grouping.
11.26.07
The Sun had already set, but the plane was high enough to be in the last bit of sunshine.