V838 Monocerotis - Unmanned Spaceflight.com

V838 Monocerotis

ustrax View Member Profile	Oct 27 2006, 03:16 PM Post #1
Special Cookie Group: Members Posts: 2168 Joined: 6-April 05 From: Sintra \| Portugal Member No.: 228	The most spectacular ‘light echo’ in the history of astronomy. -------------------- "Ride, boldly ride," The shade replied, "If you seek for Eldorado!" Edgar Alan Poe

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djellison View Member Profile	Oct 27 2006, 03:34 PM Post #2
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1	I love astronomy when it's something transient....the '87 supernova is a classic example - start observed in the nIR at the centre of our Galaxy orbiting the black hole that lives there being another...and this is a great demonstration of light, time, and distance....very cool. If they take enough images over time, they should be able to totally reconstruct the dust cloud in 3D. Doug

ustrax View Member Profile	Oct 27 2006, 03:42 PM Post #3
Special Cookie Group: Members Posts: 2168 Joined: 6-April 05 From: Sintra \| Portugal Member No.: 228	QUOTE (djellison @ Oct 27 2006, 04:34 PM) ....very cool. If they take enough images over time, they should be able to totally reconstruct the dust cloud in 3D. Very cool indeed... Somehow like watching the beggining of Things in the front row... Doug, share a bit with this old pagan... How will that happen? The 3D reconstruction? -------------------- "Ride, boldly ride," The shade replied, "If you seek for Eldorado!" Edgar Alan Poe

djellison View Member Profile	Oct 28 2006, 08:03 AM Post #4
Founder Group: Chairman Posts: 14457 Joined: 8-February 04 Member No.: 1	QUOTE (ustrax @ Oct 27 2006, 04:42 PM) How will that happen? The 3D reconstruction? Well - we know where the light is coming from, we know when it outbursted....and we know how fast it travels... So - as time passes - we are seing an expanding 'shell'. The cloud itself isn't moving (not enough to be visible at this time scale I don't think) ...what's moving is the bit of it that is illuminated. As that shell grows, we essentially get a 'scan' of the clouds, almost like a cosmic ultrasound. Doug

Posts in this topic

ustrax V838 Monocerotis Oct 27 2006, 03:16 PM

djellison I love astronomy when it's something transient... Oct 27 2006, 03:34 PM

ustrax QUOTE (djellison @ Oct 27 2006, 04:34 PM)... Oct 27 2006, 03:42 PM

djellison QUOTE (ustrax @ Oct 27 2006, 04:42 PM) Ho... Oct 28 2006, 08:03 AM

dilo QUOTE (djellison @ Oct 27 2006, 03:34 PM)... Oct 28 2006, 07:56 AM

DDAVIS This object would be worth getting images of at le... Oct 27 2006, 11:19 PM

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