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Re: (meteorobs) Ursid questions
Leo>>How fast are Ursid meteors ?<<
The Ursids have an entry velocity of 33 km/s....medium speed. These would
appear somewhat similar as the Geminids in respect to speed.
.Leo>>.. also, i know Ursids are generally faint,but does this shower produce
any fireballs at all?
Cloud permitting,i plan to shoot a few rolls of film before the predicted
peak.<<
Ursids have a population index of 3.0. Thus most of the population will be
relatively dim. However an occasional fireball will show up. I wouldn't get
too rambunctious and shoot up a lot of film. You'll probably be disappointed
if you are expecting anything of significance. To save on film, make
exposures relatively long. If unguided and for scientific purposes, record
your start/stop times to within 3 seconds.
GeoZay
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