(meteorobs) Re: Upsilon Pegasids

pmartsching at mchsi.com pmartsching at mchsi.com
Tue Aug 2 17:39:17 EDT 2005


Upsilon Pegasid activity in recent years may be nil.  In any case if there are
any the rates are so low that any seen may just be sporadics.  I also agree that
one must be careful not to confuse them with any of the many other radiants
active at the same time.  Short Upsilon Pegasids with the appropriate velocity
coming from the appropriate radiant area are more likely to be the "real thing".
 Longer meteors occurring farther from the radiant are more problematic - being
more easily confused with other shower meteors.  Several times in the 1980's I
saw a hour with 5 - 7 U.Pegasids - but in recent years I have only seen 1 - 4
doubtful U.Pegasids each year in many hours of observing.   Perhaps it is a
"periodic" shower and is inactive now??  

Paul Martsching 


> Ed and All,
> 
> The Upsilon Pegasids are very difficult to detect visually due to the number 
> of other active radiants nearby. Many say that all UP activity is from other 
> showers. I would agree with this for meteors that move north and south out 
> of the radiant. The best chance of catching a true UP would be one that 
> moved in a west or east direction out of the radiant. It would also have to 
> have the correct velocity and length verses radiant distance. I do keep an 
> eye out for this activity each year but recent rates are very low and the 
> chance of them being random sporadics is great.
> 
> Clear Skies!
> 
> Robert Lunsford
> 
> 
> ----- Original Message ----- 
> From: "Ed Majden" <epmajden at shaw.ca>
> To: "meteorobs meteorobs" <meteorobs at meteorobs.org>
> Sent: Tuesday, August 02, 2005 12:33 PM
> Subject: (meteorobs) Upsilon Pegasids
> 
> 
> >    Hal Povenmire sent a request for spectroscopy of the Upsilon Pegasids.
> > Has anyone noted any activity from this shower?
> >
> > Ed Majden
> > Courtenay, B.C.
> > CANADA
> 
> ---
> Mailing list meteorobs
> meteorobs at meteorobs.org
> http://lists.meteorobs.org/mailman/listinfo/meteorobs


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