Comet Ikeya-Zhang

April 18, 2002

Uploaded 4/18/02

This mornings image was taken with my 5.5 inch schmidt camera to accommodate the long ion tail seen here in this image. Touching the comets head is NGC7538 and the entire field is strewn with red emission nebulosities. This single 10 minute exposure (longer because of the obstructing film holders) was on Kodak E200, pushed 1 stop to bring up the background Dmin for scanning. A Nikon LS2000 scanner was used to create a 36bit color file, which was processed in Photoshop 6. The dust tail is not recorded here, either it is gone or not seen with the red sensitive film.

Instrument:  5.5" f/1.65 Celestron Schmidt Camera
Platform:  Astrophysics 1200 QMD
Film:  E200 +1 stop
CCD Autoguider: ST-7
Exposure:  10m
Filters:  none
Location:  Payson, Arizona
Elevation:  5150 ft.
Sky:  Seeing 8/10, Transparency 7/10
Outside Temperature:  10 C
Processing:  Maxim DL, Photoshop, PW Pro.




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