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(meteorobs) Re: The possible Arietid
Jure and All,
Your angular velocity estimate is well with the error limits. If the
meteor path is within 10 degrees of the radiant (in either direction)
then I would have called it an Arietid.
It may have well been a faint Earthgrazer that flared during the last 20
degrees to naked eye visibility.
Clear Skies!
Bob Lunsford
exceld77 wrote:
>
> Mike,
>
> the meteor I observed that could have been an Arietid was some
> 90 degrees from the radiant, but was only 20 degrees long. I
> estimated its angular velocity as 23 degrees/sec, from IMO's tables
> a meteor with 40 km/s atmospheric velocity (DAR's are at 38 km/s)
> 90 degrees from the radiant, beginning at 60 degrees elevation
> should have an angular velocity of 20 degrees per second. I might
> have overestimated it? Or I did it right and its not an Arietid...
> If I had a Sagittarid with a 10% too high angular speed, I'd
> call it a Sagittarid, but with Arietids I'm not sure :)
> Another thing - I expected grazers from Arietids, not 'short'
> 20 degrees long meteors!! But then again, I had 20 degrees long
> ETA's with the radiant on the horizon. I hope I get some more
> attempts at DAR's...
> ...for now I'll call this meteor a sporadic.
>
> Clear skies!
>
> Jure A.
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