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Eta Gem occultation

Posted: Sun Mar 13, 2011 10:29 pm
by george7378
This video shows the occultation of the star Eta Gem by the Moon at 21:11:36 UTC on the 13th March 2011. The star is a red/orange star some 350 light years away, and as you can see, it disappeared in a matter of seconds:

http://www.youtube.com/watch?v=lVS844vY-_g

Re: Eta Gem occultation

Posted: Mon Mar 14, 2011 4:00 pm
by Beyond
Ok, why did it disappear 'BEFORE' it got to the moon?

Re: Eta Gem occultation

Posted: Mon Mar 14, 2011 4:13 pm
by neufer
Beyond wrote:
Ok, why did it disappear 'BEFORE' it got to the moon?
Dark matter UFOs.

Re: Eta Gem occultation

Posted: Mon Mar 14, 2011 4:14 pm
by Sam
Click to play embedded YouTube video.

Re: Eta Gem occultation

Posted: Mon Mar 14, 2011 4:35 pm
by Chris Peterson
Beyond wrote:Ok, why did it disappear 'BEFORE' it got to the moon?
It disappeared behind the limb of the Moon, which is shadowed and not visible in this video. Perhaps you are confusing the limb with the terminator?

Re: Eta Gem occultation

Posted: Mon Mar 14, 2011 7:59 pm
by george7378
Yes - it went behind the dark limb of the Moon. Well put Sam :)

Re: Eta Gem occultation

Posted: Tue Mar 15, 2011 3:00 am
by Beyond
So then, it disappeared when it was close enough to the moon that the reflected light from the moon was stronger than the starlight and the star disappeared, right?

Re: Eta Gem occultation

Posted: Tue Mar 15, 2011 3:03 am
by Beyond
neufer wrote:
Beyond wrote:
Ok, why did it disappear 'BEFORE' it got to the moon?
Dark matter UFOs.
It doesn't 'matter' to me how 'dark' the UFOs are, THEY don't answer the question :!:

Re: Eta Gem occultation

Posted: Tue Mar 15, 2011 4:07 am
by Chris Peterson
Beyond wrote:So then, it disappeared when it was close enough to the moon that the reflected light from the moon was stronger than the starlight and the star disappeared, right?
No. It disappeared because it went behind the Moon. The Moon was not full at the time, and it disappeared behind the unlit side.
occult.jpg
occult.jpg (12.91 KiB) Viewed 933 times

Re: Eta Gem occultation

Posted: Tue Mar 15, 2011 4:32 am
by Beyond
:lol: Silly me :!: I didn't catch that. Thanks Chris!

Re: Eta Gem occultation

Posted: Tue Mar 15, 2011 4:36 am
by Beyond
neufer wrote:
Beyond wrote:
Ok, why did it disappear 'BEFORE' it got to the moon?
Dark matter[sic] UFOs.
It wasn't because of Dark Matter UFO's, neufer, it was because of 'KOO'. Known Orbiting Object.