To: K-list
Recieved: 2002/07/02 11:38
Subject: [K-list] Fw: Check out Phil Plait's Bad Astronomy: Info
From: Michael Read
On 2002/07/02 11:38, Michael Read posted thus to the K-list: Sent to me by a friend, enjoy!
michael
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This is a REAL PICTURE of Super Nova 1987a. The guy offers a lovingly detailed explanation (below) of how he took the picture, and why. Look what popped up! In case you don't believe me, the link is at the bottom...
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This is an actual image of the supernova SN1987A itself taken with the Hubble Space Telescope. I was trying to bring out middle range brightness details in the ring around the supernova, and scaled the images so that bright and dark values both came out as black (technically, I used a sin2 color lookup table). To my amazement, this popped up. Maybe someday I'll send it in to the National Enquirer. Each pixel is about 1/45th of an arcsecond across, which, at the distance of the ring (50 kiloparsecs) turns out to be about 160 billion kilometers each. The whole ring is about 13 trillion kilometers across, or just a bit over a light year. And oh-- have a nice day! ;-)
Click here: Phil Plait's Bad Astronomy: Info
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