(meteorobs) More fireballs with PER than with all other showers?

GLDSKTR at aol.com GLDSKTR at aol.com
Sun Jul 28 08:03:06 EDT 2013


Hi all,
 
 I agree. I've been observing the Perseids since the 80's (as long as  it 
was clear), and have noticed more fireballs from the Geminids. Maybe because  
they're 'whiter' than the 'yellower' Perseids? They appear brighter? The  
Perseids can definitely produce some nice fireballs, but I never really put 
them  high on the list of "fireball showers." But I'm no pro, so it's just my 
 observation.
 
Anthony NJ, USA
 
 
 
 
In a message dated 7/28/2013 7:57:57 A.M. Eastern Daylight Time,  
jonesp0854 at gmail.com writes:

 
Hi Dan,
    I've been watching the Perseids on and off visually  ever since 1974 
and I must say that I have never really noticed an  overabundance of fireballs 
from this radiant at all.  At least, not  relative to other major showers 
such as the Leonids and  Geminids.   In fact, some years have gone by without 
me seeing  even one fireball from them, even with rates in the 90+ per hour 
range.   But that's just me, I guess.  Other years, I have seen some nice 
ones  indeed though.  I caught only one Perseid fireball in a good look  at 
the 2012 maximum, for example.
    One thing I will say with assurance however, is that I  have never seen 
the Perseids produce a "fireball shower" year, such as the  Leonids and 
Geminids have upon occasion, although I may have missed one.   Shoot, even the 
Taurids have years when fireballs are much more common from  them than other 
years.  The Perseids do, however, produce quite a number  of bright, showy 
meteors that might actually be below fireball status, but  some 
inexperienced observers tend to overestimate the magnitudes and  call them fireballs 
when they may not meet the requirement. 
    It would be interesting to hear from other experienced  observers on 
the list of their thoughts on this subject.  Estimating  magnitudes of 
visually  observed meteors tends to be as subjective as  color determination 
sometimes, in my experience (recall the recent  discussions regarding "green 
fireballs" on the list that went on for quite  some time).  Video systems would 
tend to be more accurate, I would  think.  Just my "two cents"...;o).
 
Clear skies to all for the Perseids upcoming, Paul
      



On Fri, Jul 26, 2013 at 5:04 PM, <_dfischer at astro.uni-bonn.de_ 
(mailto:dfischer at astro.uni-bonn.de) > wrote:

The statistics reported in
http://science.nasa.gov/science-news/science-at-nasa/2013/26jul_perseids
based  on a single fireball camera network should easily be reproduced by
other  video observation networks or even in visual meteor data bases - and
the  claimed overabundance of fireballs with the PER should actually have
been  detected well before if it is as prominent as shown in the history.
Has  it?

Dan

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