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Old 11-06-2011, 09:26 AM
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Robh (Rob)
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Join Date: Feb 2009
Location: Blue Mountains, Australia
Posts: 1,338
Quote:
Originally Posted by orestis View Post
Hi guys awesome stuff Robh,

Did you observe the main eclipse on the 9/6/11 Or the same one I observed on the 10th ?

On the 10/6 and 11/6 I observed V1010 OPH and saw a very nice change in brightness but for the secondary eclipsing the primary,it was awesome,I couldn't believe how quickly this star changes.I tried to get obs around B C D and E.Though it was cloudy during E and at 6am when i went out it was too bright to see.

Heres my data from the obs session all in AEST(sorry i will change it later to UT)-

6.20 pm- 6.2 m(about one hour off B too bright during 5.30)
9.06 pm- 6.4 m(Half hour off C)
2.45 am- 6.2 m( about one hour off D because of clouds)
3.30 am-6.5 m(Half way between D and E)

At the beginning(6.20)I think that the primary star had already started to be eclipsed by the secondary component and at 9.06 was pretty much in mid eclipse then it rose back up again at 2.45 though at 6.2 I think it had already started to be eclipsed by the primary component and then at 3.30 it was at 6.5 which is lower than the 6.4 dip but then i didn't get a measurement after that becuase of clouds unfortunately.

And I am lucky I got the measurements I got because I stayed up all night checking the sky for gaps of which I found some luckily.

All these observations were made from my balcony using a 8X50 Finderscope.Apart from all the clouds the conditions were great and the moon had set at the 2.45 am obs.

Again thanks guys for all the tremendous help and I will try shortly to observe the primary minimum.

Cheers Orestis

Ps-Rob If you made that chart with the light curves which I think you did ,I think your awesome and i couldn't of done this without you thanks Rob .
Orestis,

Great work in getting those readings under cloudy conditions. Hopefully, a break in the clouds will let you catch the primary eclipse sometime soon.

My observations were around the time of the primary eclipse on Thurs 9th June. It was fortunately clear that evening.
Wait until you observe this event. It is quite dramatic.

The diagrams were done using EazyDraw on a Mac.

Regards, Rob
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