Date (by UT): 3/24/97
Time (UT): 01:50 - 05:00
CM: 301 - 347 deg
Ls:
De: 23.18
Disk Diameter: 14.2"
Seeing: 6.5-7/10
Transparency: clear and cold (-15 C)
Camera: Lynxx PC Plus
Telescope: 10" SCT
FL: 500"
FR: f/50
Exposure Time: 1.1 seconds
Filters: Near IR 800-1100nm, IR Passing/Visible Rejection-Murnaghan Instuments
IR83 Filter 0.5 second exposure.
Processing: Calibration (bias, therm, flat) w/ BatchPIX
Unsharp mask w/ BatchPIX
Light sharpen w/Photostyler
Composite w/ Photostyler
Special Note: The first half of these images are soft due to a screw up
on my part...trying to photograph the comet and Mars at the same time, not
paying attention to detail. There was a physical obstruction in the light
path which caused the soft focus. Didn't notice it for 2 hours. Once removed,
things got much better. Also, the seeing improved somewhat later in the
evening as well. I took approx 1000 images, saved the best 10% for processing,
and selected the best 10 for this composite.
Observing Station: Lat. N44d 17', Long. W79d 9'
Observer:
Brian Colville
R.R. # 2
Sunderland, Ontario L0C 1H0
Canada
(705)357-1613
E-mail: bcolville@brocktown.com