Earthshine - Close-Up
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Each of the above images (use the arrows to navigate) is a combination of the Earthshine and normal sun-lit part of the Moon.
Technical Information |
|
| Object | Moon: Sun-lit and Earth-lit portions |
| Common Name | Luna with Earthshine |
| Date, Time, & Moon | March 1, 2006 at dusk; 6% full Moon |
| Location | SBO Telescope at CU Boulder |
| Optics | Sun-lit:
16" (40.6 cm) Cassegrain; 192" (488 cm) focal length; f/12 Earth-lit: 3" (7.6 cm) Refractor; 20" (51 cm) focal length; f/6.5 |
| Camera | Canon Digital Rebel 350D XT |
| Exposure Details | Sun-lit:
Between 1/8-1/15 sec; ISO 100 Earth-lit: 10 or 15 sec; ISO 100 |
| Optical Correction | No Dark- nor Flatframe-Correction |
| Camera Position | Sun-lit:
Prime Focus Earth-lit: Eyepiece Projection |
| Guiding | Passive Clock Drive |
| Processing Details | Stitched
mosaic of Sun-lit together in Stitcher PhotoShop CS - Levels adjustments for Sun-lit part; Levels and Curves adjustment plus unsharp mask for Earthshine and only green color channel was used |
| Image Size | Moon is approx. 31 arcmin in diameter (1/2°) |
| Magnitude Depth | N/A |
| Notes | This was originally done as an experiment, and it turned into something that I try to do now whenever I'm at the telescope during a close-to-new moon. |