[Prev][Next][Index][Thread]
(meteorobs) Re: photo strategies for Leonids '00?
Ed and All,
Your photograph titled "Unusual event UV980924" appears very much like
an "earth grazing" meteor. I have seen similar paths nearly stretching
horizon to horizon for these impressive meteors.
Best Wishes
Bob Lunsford
Ed Majden wrote:
>
> Micheal:
> Did you note the colour of these meteors? High velocity meteors like
> the Perseids and Leonids generally have strong emmissions at the blue end of
> the spectrum. For example, strong Ca+ H&K lines just below 400.0 nm.
> Perhaps this colour film is not sensitive to this region. Did you check the
> spectral characteristics of this film? A fireball as bright as you say it
> was would definitely be recorded on a panchromatic film. For that matter,
> a -10 fireball is bright enough to cast a shadow so I can't see how it would
> not be photographed. An example of a -10 fireball secured with a Sandia
> All-sky camera is shown on our Bolide Detection Network home page at:
> http://astrowww.phys.uvicdot ca/~balam/emo.html
> Bolide EM980814a. Also check the link to the Woodinville Washington site
> for a video clip of a fireball secured by Ajai Sehgal. I think it is still
> on his home page.
>
> Ed Majden
>
To UNSUBSCRIBE from the 'meteorobs' email list, use the Web form at:
http://www.tiacdot net/users/lewkaren/meteorobs/subscribe.html
References: