[AZ-Observing] Re: az-observing Digest V7 #250
- From: "Spencer, Darrell" <DSpencer@xxxxxxx>
- To: <az-observing@xxxxxxxxxxxxx>
- Date: Thu, 13 Sep 2007 12:56:50 -0700
As a novice trying to visualize the use of a "Blink Comparator" can
someone correct me if I'm wrong:
The device (either old-school or new) simply switches or "blinks"
between frames so positions of objects can be compared.
Is this its usage?
Thanks (and sorry for wanting to confirm what seems intuitive),
Darrell Spencer
-----Original Message-----
From: az-observing-bounce@xxxxxxxxxxxxx
[mailto:az-observing-bounce@xxxxxxxxxxxxx] On Behalf Of Dan Heim
Sent: Thursday, September 13, 2007 11:30 AM
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] Re: az-observing Digest V7 #250
Scott,
You probably aren't aware of this, but Keith Parizek (ex-member of PAS)
was
also impressed with Tombaugh's blink comparator. So much so that he
actually built one for his own use. Last time I visited him at his new
home
out near the McDowells, he still had it. Might be interested in selling
it.
Still, it seems a step backwards from what we can do on a computer these
days.
Dan Heim
President
Desert Foothills Astronomy Club
http://www.dfacaz.org
----- Original Message -----=20
From: "Loucks, Scott" <LoucksScott@xxxxxxxxxxxxxxxx>
To: <az-observing@xxxxxxxxxxxxx>
Sent: Thursday, September 13, 2007 10:16 AM
Subject: [AZ-Observing] Re: az-observing Digest V7 #250
> Brian,
> Thank you for posting the blink comparator image. I was drawn to this
> devise myself while visiting Lowell but didn't have a camera at the
> time. Being a small body enthusiast I have a great fascination in this
> devise. At the time of my visit the machine was operational and
blinking
> the actual Pluto discovery frames. The clicking sound could be heard
> from every corner of the room - don't ask how I know that ..lol. The
> exhibit was definitely the high point of my visit. My kids were not so
> impressed though and they see dad blinking frames on the computer so
how
> could this be any different..? You know thinking about this, it really
> is the same process just modernized. Still, I like Tombaugh's machine
> much better.. ;-)
>
> -Scott
> =3D20
> > Date: Wed, 12 Sep 2007 15:38:16 -0700 (MST)
> > From: Brian Skiff <bas@xxxxxxxxxx>
> > Subject: New Horizons meeting at Lowell
> >=3D20
> > Over the weekend, Will Grundy and others at Lowell hosted a
> > team meeting for the New Horizons spacecraft (heading to Pluto).
> > Many of the members had not been to Lowell before, so were taken in
> > by Clyde Tombaugh's blink comparator and the Pluto Camera.
> > Some photos by participant Joe Peterson are here:
> >=3D20
> > http://www.skyrush.com/nhstm2007/
> >=3D20
> > Good shots of the Pluto Camera, Clark telescope, martini drinkers,
> > a rainbow, and other snippets of our mountain town.
> >=3D20
> >=3D20
> > \Brian
> --
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please
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>
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