[AZ-Observing] Re: Occultation of Chi-2 Sagittarii
- From: "Jimmy Ray" <jimmy_ray@xxxxxxx>
- To: <az-observing@xxxxxxxxxxxxx>
- Date: Tue, 4 Nov 2008 05:52:53 -0700
Nope, It was actually the dark limb! The glare from the lit side of the moon
was so bright I tried to move most of it out of the FOV. I did notice and
was surprised as well by the very quick disappearance. That was part of the
"magical" experience of the observation ;-)
Jimmy Ray
-----Original Message-----
From: az-observing-bounce@xxxxxxxxxxxxx
[mailto:az-observing-bounce@xxxxxxxxxxxxx] On Behalf Of Richard Harshaw
Sent: Monday, November 03, 2008 9:42 PM
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] Re: Occultation of Chi-2 Sagittarii
So, Jimmy, I assume you saw the moon's lit limb pass before 48 Sgr? Some
night (and you may have to plan for this), see if you can catch an
occultation by the unlit limb. I don't think I've ever seen a star
disappear so suddenly and completely as in a dark limb occultation!
It is also a ton of fun to watch them re-emerge.
Richard Harshaw
Cave Creek, AZ
-----Original Message-----
From: az-observing-bounce@xxxxxxxxxxxxx
[mailto:az-observing-bounce@xxxxxxxxxxxxx] On Behalf Of Jimmy Ray
Sent: Monday, November 03, 2008 9:29 PM
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] Occultation of Chi-2 Sagittarii
While out front testing a new piece of equipment, I quite by happen chance
witnessed Chi-2 Sagittarii (HIP 95486, 48 Sagittarii, HD 182391 (whatever))
just within a minute of being occulted by the Moon. For me a first as I
really haven't tried to witness one of these but I have to say that it was
rather "magical" to observe. From my location the star disappeared at about
20:45 hrs. I guess I should have stayed set up to watch it reappear but was
done testing and wanted to get in and look up the event. Think I'll be
watching for these in the future.
The scope was a new to me ETX-90 with a Dr. Clay supercharge. The scope was
a casualty of the economy with the previous owner having to part with it at
a discounted price to afford some truck repairs. The challenge I found with
it is that with its dew shield and rigel finder out front it was very nose
heavy and slightly unmanageable for the gear train to handle. I designed and
machined a "zero interference", under slung, static counterweight system
that can stay permanently mounted, allowing full range of motion and access
to all controls for the observer. Works great and the scopes accuracy is
quite noticeably improved (Balance matters). Should make a great travel
scope.
Jimmy Ray
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