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Lunar occultation of Oct.09

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Author Topic: Lunar occultation of Oct.09  (Read 408 times)
Roman White
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« on: October 12, 2008, 11:54:49 am »

I forgot to post this a few days ago.
It was a lunar occultation of teta Capricornii on Oct.09, 23:26 (GMT+3). This occultation was a bit more interesting than others because it was almost grazing and the star was occulted at the northern point of terminator.

My main goal was a precise timing of this event, secondary - a more-less precise fixing of the point on the lunar surface where the star was occulted.
Photographing was just a fun, have a look at it:
Oct.09, 23:24 (GMT+3), 0.4s@ISO200
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SkyWatcher 130/900mm EQ3, Bresser 76/700mm, 20x90 bino. and other, Olympus SP-550UZ
Eclipse & comet chaser, occultation & meteor observer
Poltava Astronomy Portal

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Steveo74
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« Reply #1 on: October 13, 2008, 01:33:06 pm »

Great shot Roman!!  Looks like you achieved you goal...  Grin
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Thanks,
         Steven..

Visit my Blog http://steviesskyshack.blogspot.com

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martinastro
Martin Mc Kenna
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« Reply #2 on: October 13, 2008, 06:44:41 pm »

I agree with Steven Roman. Those are great shots. It's not easy to get the correct exposure to catch both the Moon and close proximity star without overexposure. You found that perfect sweet spot. Impressive observation.  Wink.
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davegrennan
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« Reply #3 on: October 13, 2008, 11:01:08 pm »

Impressive observation.  Wink.

I agree.  I know from past experience that that is not easy to do.  Great work Roman.
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Regards and Clear Skies,

Dave.
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Roman White
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« Reply #4 on: October 15, 2008, 04:18:28 pm »

Thanks Steven, Martin and Dave.
You are right, it's hard to find the middle. A bit shorter - and the star will be too faint, and a bit longer - and the moonlight will vanish the star out.
An another scary thing is that the photo was taken just 2 minutes before an occultation, if I would mess with my camera a bit longer - I could miss that interesting occultation  Sad ...I must be more careful with that... it's better to take photos when a star reappears.
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SkyWatcher 130/900mm EQ3, Bresser 76/700mm, 20x90 bino. and other, Olympus SP-550UZ
Eclipse & comet chaser, occultation & meteor observer
Poltava Astronomy Portal


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