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04-17-2003, 11:20 AM | #1 |
Radical Centrist
Join Date: Jan 2001
Location: Cottage of Prussia
Posts: 31,423
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4/17/2003: Dusty star
It's the last of the astro pics in the queue, another suggested by 'spode and another Hubble image. And it looks like Hubble's broken again, sending along the kind of shot normally reserved for the amateur 35mm holiday pic-takers. How many billions of dollars spent on this thing, and it can't keep the camera still. No, actually this is an aging star in the Egg Nebula, and it's shrugging off DUST. Fine carbon dust. Like a candle? Shrug, I don't know, but here this star is manufacturing dust from the fusion happening at its center. They think the dust might be good for building other things out in space - maybe dust like this gets pulled around new stars to help become planet-forming material. The colors in the image are not natural; they applied different polarizing filters to different kinds of light, to try to figure out what light was getting reflected off the dust and why. Then they used color to show what light is seen from different filters. It's through studying that light that astronomers can *somehow* tell that the dust is carbon. |
04-17-2003, 11:44 AM | #2 |
still says videotape
Join Date: Feb 2001
Posts: 26,813
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More Dusty Star pics.
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04-17-2003, 04:09 PM | #4 |
The future is unwritten
Join Date: Oct 2002
Posts: 71,105
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I've seen the same thing through my windshield, on the way home from a great party, in the wee hours.
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04-17-2003, 04:29 PM | #5 |
lurkin old school
Join Date: Oct 2001
Location: Minnesota
Posts: 2,796
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Was she driving?
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04-17-2003, 05:32 PM | #6 |
The future is unwritten
Join Date: Oct 2002
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No, no. I meant UT's picture. Sorry, I should have been specific, but it was a great party.
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04-18-2003, 09:17 AM | #7 |
lurkin old school
Join Date: Oct 2001
Location: Minnesota
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I was inferring the similarities between all visible dusties at the end of an evening such as you described.
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04-18-2003, 03:30 PM | #8 |
The future is unwritten
Join Date: Oct 2002
Posts: 71,105
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Duh.....yeah....what he said.
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The descent of man ~ Nixon, Friedman, Reagan, Trump. |
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