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Moyer Images of Comet 1996 B2 Hyakutake




Observer: James Moyer
Location: Buckingham, Pennsylvania
Date: March 27, 1996 07:30 UT, 08:00 UT

The first image was taken on Wednesday morning 3/27 at ~ 0730 UT in Buckingham, PA (45 mi. NE of Philadelphia), naked eye limiting magnitude of 5-5.5. This is an unguided 60 sec. exposure made with a 50mm f1.4 lens stopped down to f2.4. The exposure time was 60 sec. on Kodak Royal Gold 1000 print film. Surprisingly, longer exposure times did not improve the quality of the photo because the sky fog limit was reached at about 60-90 sec., and longer exposures led to discernable star trails. Polaris is the bright star to the upper right of the coma, and the tail is seen extending into the bowl of the big dipper to the upper left. (The original photo shows the extent of the tail more clearly than this unenhanced scanned image.)

The second image was taken at the same location at ~ 0800 UT. An f3.5 70-210mm lens at 210mm was used at f5.6. The exposure time was also 60 sec.

The third image is that same as the first image except that digital image post-processing (mainly gamma enhancement) was applied with PhotoStyler to bring out details in the tail.

James Moyer

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