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RE: (meteorobs) Re: meteorobs-digest V3 #243
I would have to agree with the floater hypothesis myself, as a biologist I
work with UV and laser light and constantly worry about my eyes. A couple
years back I started noticing floaters while backyard observing and then
some times during daylight. Mine are also transparent. I went to the
Opthamologist and was told that as one ages the humor in your eye begins to
stream and thus floaters are produced. I was bummed that I was old enough
to experience a floater. These "floaters" can move quite quickly in your
visual field depending on , eye movement, location and size.........and just
one other note. Eye strain can cause many anomalous vision affects so when I
am observing I am careful to take regular breaks and do some eye exercises
to relieve strain....My day job depends on good eyesight!!!!
Jason Shanley
Zeneca Pharmaceuticals
Rm B1120
1800 Concord Pike
Wilmington, De. 19850
Phone (302) 886-3972
Fax (302) 886-5767
> ----------
> From: Kim S. Youmans[SMTP:ksyo@pinelanddot net]
> Sent: Tuesday, December 21, 1999 6:28 AM
> To: meteorobs@jovian.com
> Subject: Re: (meteorobs) Re: meteorobs-digest V3 #243
>
> Bob Young could well be onto something, but I am personally not
> convinced.
> I have floaters, they are darn aggravating at times, but when is the one
> time I am not bothered by them?...when I am observing, i.e., staring at
> a dark, but not truely black sky.
> I can only speak for myself. My floaters are not black. They are
> a light semi-transparent gray. And no matter how fast I jiggle my
> eyes, I can't make them move at meteoric speed --well, maybe a slow
> meteor!
> As I've mentioned earlier this year, I have only seen black meteors
> when I was really fatigued. I saw them after the second all-nighter of
> the '98 Leonids, one or two, anyway. I have been careful this year to
> get naps before I go out, and after over 200 hrs logged this year, not a
> single dark meteor has been observed.
> As for watching meteors in a planterium, just let it stay cloudy
> here long enough...I'd probably be dying to join you, Bob!
> Kim Youmans
>
> YoungBob2@aol.com wrote:
>
> > In a message dated 12/20/1999 2:21:29 PM Eastern Standard Time,
> > owner-meteorobs-digest@jovian.com writes:
> > You wrote:
> >
> > << As strange and naive as this may sound, I've also seen a
> > nebulous meteor - not really a worm meteor, but a meteor
> > with a clear central condensation and a coma or an outer
> > envelope of some sort. That one was a sporadic grazer 3.
> > magnitude that covered some 70 degrees in 4 seconds.
> >
> > Clear skies!
> >
> > Jure A. >>
> >
> > I once was puzzled about nebulous meteors. I had seen
> > these but has ignored them thinking that they were eye
> > "floaters". Then, one day between planetarium shows
> > just out of curiosity I turned the sky way down to a dark
> > sky and all lights off, and made sure that the meteor
> > project was off, too, let my eyes dark adept and -- Holy
> > Cow! I saw them. About 1 every 15 minutes or so, just
> > about the frequency I saw them outside. It seemed that
> > they were more frequent if I stood up and moved around,
> > then sat down and looked up.
> >
> > The giveaway was that I thought I detected a hint of pink
> > to one over to the right. Then I noticed that over to the
> > right was the red "exit" light, still on. I turned it off. In
> > fact, I then turned off all lights and sat in total darkness
> > and saw no "nebulous" meteors.
> >
> > My conclusion is that these are reflections or refractions
> > of starlight or other light in floaters. They took on, for
> > me, the forms reported by others: blobs or arcs.
> >
> > I also have noticed when I do real observing a class of
> > very faint (~+6 mag) and very fast and short meteors.
> > Since these are often in the periphery, I tended to ignore
> > them because I wasn't sure. In the Planetarium I also
> > see them, and also in total darkness.
> >
> > My conclusion was that amorphous meteors are
> > related to floaters, while the very dim fast ones are
> > related to the eye, perhaps noise. They aren't
> > common and the latter are not noticed unless I am
> > in really dark skies, <5 mag.
> >
> > I guess that very few people would be stupid enough
> > to try to observe meteors in the planetarium!
> >
> > Clear skies,
> > Bob Young
> > State Museum of Pennsylvania
> > Planetarium
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>
>
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