...CHARA can detect individual planets around binary stars
Wow!!!
1 posted on
12/07/2002 6:52:30 AM PST by
The Raven
To: The Raven
Here's a picture as well....
Top: Together, CHARA's six telescopes compose a light-gathering instrument with a maximum aperture, or baseline, equal to the farthest distance between two scopes: 1,080 feet. The Y configuration allows astronomers to vary the aperture for different observations. Bottom: For an interferometer to work, starlight gathered by separate telescopes must hit a detector at the same time. To compensate for the extra distance light travels to telescope 2, light collected by telescope 1 is diverted precisely the same distance on a delay line. Graphics by Matt Zang
2 posted on
12/07/2002 6:55:01 AM PST by
The Raven
To: The Raven
Dang and I thought my 10" Meade was the best. :(
To: The Raven
Dang and I thought my 10" Meade was the best. :(
To: The Raven
I'm no electrical engineer, but I would think an AND logic gate would overcome the synchronization problem. For a given signal, a threshold voltage would have to be overcome to drive the gate high, and the same voltage would have to come from every one of the sources. Until it did, no signal would pass.
But then, I'm sure better minds than mine have considered that idea.
5 posted on
12/07/2002 8:16:45 AM PST by
IronJack
To: The Raven
Paragraphs are our friends.
9 posted on
12/07/2002 10:12:57 AM PST by
boris
To: Physicist; RadioAstronomer; ThinkPlease; PatrickHenry; VadeRetro; Scully; Piltdown_Woman; ...
Holy Grail of optical astronomy ping!
Optical interferometry is the way to go....
To: The Raven
"Eventually, those lessons will come back home, telling us what our sun was like in the past and exposing threats we can expect from itgiant flares, perhaps, or periods of dimming that could trigger an ice age. Lovely! So in theory we could be toast in the next half hour. Except it hasn't happened so far since the formation of life on Earth.
To: The Raven
These magnetic storms on the sun contribute to global warming here on Earth, and his extensive survey should show whether spots and flares are common and constant on other stars, whether they come and go in cycles of, say, a thousand years, or whether our sun is abnormal for having them at all. Global warming? How could the sun have anything to do with global warming? Doesn't everybody know that humans wasting energy producing CO2 causes global warming?
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