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Masi Images of Comet Hale-Bopp

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Observer: Gianluca Masi
Location: Ceccano, Italy
Date: April 19, 1997 18:26-19:46 UT

The first image shows the inner region around the nucleus, with dust waves. Vixen SP R-150S,15 cm f5 reflector telescope; CCD SBIG ST-7; elaboration: QMiPS32.

The second image is a four-frame mosaic, each frame 1 min exposure. Technical informations on the same picture. Vixen SP R-150S, 15 cm f/5 reflector telescope; CCD SBIG ST-7. The image has been log-scaled using a software done by me. Moon phase: 90%.

The third image has been processed to underline the stuctures towards the sun. Technical informations on the same picture. Vixen SP R-150S, 15 cm f/5 reflector telescope; CCD SBIG ST-7; elaboration: QMiPS32. Moon phase: 90%.

The last image uses the Larson/Sekanina algorithm to extract hidden features. Technical informations on the same picture. Vixen SP R-150S, 15 cm f/5 reflector telescope; CCD SBIG ST-7; elaboration: QMiPS32. Moon phase: 90%.

Location: Ceccano (FR) Italy, 213 meters above sea level.

Gianluca Masi
gianmasi@fr.flashnet.it
http://www.flashnet.it/users/gianmasi
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