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(c) 2003 All astro photo images are copyrighted. They may not be used or reproduced without explicit written permission from the authors.
About this Image / Über dieses Bild
CCD: | WebCam Philips ToU Cam pro |
Image Type: | Stacked video frames. |
Exposure time: | 1000 video frames stacked, averaged with GIOTTO. Maximal gain, 5 frames/sec. |
Exposure date: | September, 1st 2003, 21:00UT. |
Location: | Capella Observatory at Amani Lodge, Kupferberg near Windhoek, Namibia |
Filter: | wide band red filter |
Instrument: | Ganymed 60cm-Hypergraph in secondary focus, f=4800 mm |
Seeing (FWHM): | about 2" |
Photographer: | Stefan Binnewies, Dietmar Böcker |
Remarks: | The names of the five moons visible on this image incl. their brightness (from left to right): Oberon (13.9mag), Miranda (16.3mag), Ariel(14.2mag), Umbriel(14.8mag) and Titania(13.7mag). Miranda was only visible after stacking the video frames, but it is remarkable, that a 16.3mag "star" can be seen with a WebCam, isn't it? |
Bemerkungen: | Die Namen der fünf auf diesem Bild sichtbaren Monde inklusive ihrer Helligkeit (von links nach rechts): Oberon (13,9mag), Miranda (16,3mag), Ariel(14,2mag), Umbriel(14,8mag) und Titania(13,7mag). Miranda war erst nach dem Aufaddieren der Bilder zu erkennen, aber es ist bemerkenswert, dass ein 16,3mag heller "Stern" mit einer normalen WebCam sichtbar wird, oder? |
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