[AZ-Observing] Re: Trapezium Eclipsing Variable Star Light Curve

  • From: Jeff Hopkins <phxjeff@xxxxxxxxxxx>
  • To: az-observing@xxxxxxxxxxxxx
  • Date: Sun, 5 Nov 2006 12:00:39 -0700

That's Orion not Qrion. :-)

Jeff

At 11:58 -0700 11/5/06, Jeff Hopkins wrote:
>Check 
>http://www.aavso.org/vsx/index.php?view=detail.top&oid=24079
>
>and                  http://www.astropix.com/HTML/B_WINTER/TRAPEZ.HTM
>
>I'm curious why the interest?
>
>Qrion has thousands of variable stars in it. What would be
>interesting would be to follow it with filter photometry. MY plate is
>pretty full right now so I can't devote instrument time to it. It
>would be an easy CCD BVRI project, however. It might give a good idea
>about the star colors and show different eclipse depths in different
>bands.
>
>Jeff
>
>At 10:50 -0700 11/5/06, Tom Polakis wrote:
>>At the last SAC meeting, Paul Dickson informed us of a favorable
>>minimum of the eclipsing bnary star Theta 1 Orionis A in the
>>Trapezium in the Orion Nebula.  Mid-eclipse occurs just after
>>midnight on December 2, when the star will be magnitude 7.7.
>>
>>I wondered where I could find a good light curve that would describe
>>how rapidly it fades and brightens.  I came up empty when I tried
>>the AAVSO light curve generator, and Googling for images was equally
>>fruitless.
>>
>>Tom

-- 
Jeff Hopkins
HPO SOFT
Counting Photons
http://www.hposoft.com/Astro/astro.html
Hopkins Phoenix Observatory
7812 West Clayton Drive
Phoenix, Arizona 85033-2439 U.S.A.
www.hposoft.com
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