[AZ-Observing] Re: Antares Occultation

  • From: Tom Polakis <tpolakis@xxxxxxx>
  • To: az-observing@xxxxxxxxxxxxx
  • Date: Thu, 03 Mar 2005 03:39:36

Just watched the disappearance.  It was nice to have the eyeball to the
eyepiece again.  Our non-WWV approach gave a time of disappearance of
roughly 3:18.04.563-ish MST, or thereabouts.  The disappearance didn't seem
to take any longer than a tenth of a second, so I'd call it instantaneous.
It did appear to "rest on the limb" for few seconds.  We were not able to
see the companion, which must have hung out there for several seconds after
the primary star disappeared.

Now, off to catch a half hour nap before our reappearance at the scopes.

Tom




At 12:05 PM 3/2/2005 -0800, you wrote:
>Here is some information from Doug Snyder at Huachuaca Astronomy Club about
>tomorrow morning's Antares occultation by the Moon.  So set those coffee
>makers to 3am and hope for clear skies.
>Jenn.
>
>-----Original Message-----
>From: Doug Snyder [mailto:starhaven@xxxxxxxxxxxxx]
>Sent: Wednesday, March 02, 2005 11:56 AM
>To: HACList
>Subject: [hac] Antares Occultation Thursday Morning
>
>
>
>There is going to be a bright star occultation Thursday morning.  The double
>
>star Antares (the Alpha star of Scorpius) will pass behind the bright limb 
>of the Moon shortly after 3:15 am and reappear from the dark limb around 
>4:12 am. Both events will be visible here in SE AZ.  Antares, a cool Red 
>Giant, is a magnitude 1 star with a magnitude 5.4  Dwarf companion. This 
>companion star is only 2.4 seconds of arc away from Antares, and is at a 
>position angle of 275 degrees.
>
>This occultation will provide you with the opportunity to view the dimmer 
>companion of Antares (more likely during the reappearance from the dark 
>limb).


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