Mars-thru the PowerMate with an iBot.

An average of 10 frames from video taken using my 600 MHz iBook with an OrangeMicro iBot FireWire CCD webcam using BTV Pro mounted with a Mogg webcam adapter on an 127mm f/14.96 Meade ETX125AT Maksutov-Cassegrain Telescope with a Scoptronix visual back and a TeleVue 5x PowerMate at 1:39 AM on August 14, 2003 in New York, NY. Each of the frames was aligned and averaged using Keith's Image Stacker after subtracting a dark frame from each on my 467MHz PowerMacintosh G4. Levels were adjusted in Photoshop 7.0.1 to improve contrast. Distance at 0.3847 au and closing. Longitude of central meridian: 175.8 deg. Apparent diameter is 24.33 arcsec. Image scale approx. 0.13 arcsec/pixel. This is oversampled too much for the ETX125's 0.9 arcsec resolution; closer to 0.45 arcsec/pixel would be optimal per Nyquist. But this is still a nice looking image for Mars at 34 deg elevation captured from a shakey and windy roof in downtown Manhattan.

Image © 2003 by Taras R. Hnatyshyn

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last updated on August-14-2003