J.S. MCDONALD
Center for EUV Astrophysics, 2150 Kittredge St., University of California, Berkeley, California 94720, USA
and G.R. GLADSTONE
Space Sciences Laboratory, University of California, Berkeley, California 94720, USA
Owing to the geometry of the six-month all-sky survey phase of the mission, EUVE has several times observed the Moon. The Sun is far too intense to be observed directly by EUVE's highly sensitive detectors, so solar EUV variations can be most directly observed by EUVE in lunar reflection. Observations of the Moon can also tell us of the composition and texture of the lunar surface as well as the nature of the local EUV background radiation. Preliminary survey images and analysis are presented.
The first quarter Moon across the entire wavelength range observed by EUVE. The central regions of the microchannel plate detectors, the best for imaging, have been isolated in this image. Effects of adding seventeen images from different observations and across a wide wavelength range have served to obscure surface features that may be represented.
A version of this picture can also be found on pg 40 of the Dec 1994 Sky&Telescope magazine.