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Waxing Moon
Tycho and Its Environs
This image has been rotated so that N is up and S is down. The moon phase is 11 days following new, so illumination is about 89%. At the focal length used and the small imaging chip size, only a small area near the southern pole is shown. The astonishing system of rays emerging from Tycho (which extend over much of the visible hemisphere) can be seen as the light and dark streaks that begin at the right side of the crater. Click on the image to see some of the crater names.
| Date | 03 May 2001; 11 PM PDT |
| Scope | Astro-Physics 130 EDF, f12 (2x Barlow) on A-P 900 GTO mount |
| Exposure | Meade 416XTE CCD camera, 15 msec exposure with H-alpha filter |
| Processing | Rotated, stretched, and sharpened in PhotoShop |