Zlender Images of Comet Hale-Bopp

Observer: Udo Zlender
Location: Bonn, Germany
Date: March 9, 1997 04:32:59-04:39:28 UT

This set of three ccd-images shows the region of the inner coma at different exposure times.

For all images:

Camera: OES-LCCD14 2x2 pixel binning mode , 12 bits AD-resolution Telescope: 1760mm F/6.3 Celestron C11 with focal reducer Tracking: automatic on Losmandy G11 Outside temp: 3 deg Celsius Filter: None CCD-temp: -4 deg Celsius Orientation: North is up Humidity: high Notes: Urban environment. There were high thin clouds during exposure.

First image: Time of observation: 04:39:28 UT Exp. time: 0.3 sec Processing: dark subtracted, log scaled Second image: Time of observation: 04:36:47 UT Exp. time: 30.0 sec Processing: dark subtracted, log scaled, false color lut Third image: Time of observation: 04:32:59 UT Exp. time: 1.0 sec Processing: dark subtracted, log scaled

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