Meteoric trail on Sep 11, 1999


Date & Time: Sep 11 1999, 23:22 JST(+0900), 5min. Exp.
Optical: SMC PENTAX f=165mm F2.8, Aperture: F2.8
Auto-guided with TAKAHASHI EM-200 Equatorial
Camera: PENTAX 67
Film: Ektachrome E200 (+1EV pushed)
Location: Koumi town, Nagano pref.


I witnessed a bolide with -5 magnitude in the east sky on Sep 11, 1999. And this bolide left the fine meteoric trail. This image was exposed 5 minutes from 10 seconds later of bolide appearance. A bright star at upper side is the saturn, and captured field is equivalent to between Cetus and Taurus. A bolide raced across the sky from north to south nearly parallel with the eastern horizon. You can see a matter of trail distributing with flow of high altitude atmosphere.
course chart of bolide

The course of Bolide

A thick arrow represents the course of bolide, and thin lines show
distibuting directions of trail estimated from photograph.



Leonids in 2000
Leonids '98

Copyright(c) 1999 by Naoyuki Kurita, All rights reserved.
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