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Old 16-01-2012, 09:50 AM
Rob_K
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Join Date: Oct 2006
Location: Bright, Vic, Australia
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Quote:
Originally Posted by glenc View Post
The very faint tail in Lester's image is about 22 degrees long, the "brightest" part is about 5 degrees.
The greenish Vela SN remnant is visible on the lower left side of the image.
Hi Glen - I make it out to 43 deg and more than probably extending out of frame, 45 deg + (per link below). The Milky Way interferes right near the edge of the frame, a bit hard to tell.
http://i727.photobucket.com/albums/w...illengthsm.jpg

Interesting, how do you all estimate lengths? I use the measuring tool in Starry Night. Should be very accurate as it's pretty simple maths - angle subtended at centre by two points on a sphere.

Clouds interfered last night so I got nothing. Great job again Lester!

Cheers -
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