This is the moon at 11 days as seen through Hydrogen Alpha light. The moon shines by reflected sunlight. Since the sun puts out a tremendous amount of light in the hydrogen alpha spectrum the moon can be imaged in this spectrum as well. Assembled as a two frame mosaic.
Note: This image was selected Lunar
Photo of the Day (LPOD) 10/22/2004.
|Optics:||Orion 80mm ED, 600mm f/7.5|
|Exposure:||2 x 110 ms|