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A magnitude
–6 Perseid Steve Evans |
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A mag –6 Perseid, 1997 August 12. Field size,
20°.5 x 15°.4; exposure start, 23:33:30 UT; exposure, 4m 59s;
appearance time, 23:33:33 UT; trail mid-point (approx.), 23h 01m +33°
30'. 50-mm f/2.5 lens on HP5, push-processed to 800 ISO. The rotating shutter
breaks the trail 20.84 times per second at an open/close ratio of 2:1. The
appearance time and magnitudes were obtained from Andrew Elliott's
intensified video record.
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