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Fraser
2006-Oct-27, 06:00 PM
The strange variable star V838 Monocerotis flared up nearly 5 years ago, and astronomers have been trying to figure out what's going on ever since. As the light from the flare up propagates out from the star, it illuminates the surrounding cloud of dust. This light reflects off the dust, and we see this echo here on Earth. This latest photograph from the Hubble Space Telescope shows the changes that have happened over the last year. One interesting feature are the whorls and eddies in the dust, which could be caused by powerful magnetic fields.

Read the full blog entry (http://www.universetoday.com/2006/10/27/echos-of-light/)

antoniseb
2006-Oct-28, 02:25 PM
V838 Monocerotis is an interesting and very visual story. I'm entertained by the papers speculating about why it flashed.

George
2006-Oct-28, 08:03 PM
V838 Monocerotis is an interesting and very visual story. I'm entertained by the papers speculating about why it flashed.
I am anxious to learn more about this peculiar object. One idea is that planet mergers into the star may be a cause for these echos. I suppose the other V838 Mon thread (http://www.bautforum.com/showthread.php?t=21350) would be more appropriate for discussions.