Undertoad Tuesday Apr 1 04:21 PM
4/1/2003: v838, a cool huge star
Elspode Tuesday Apr 1 04:36 PM
The neat thing about this image is that it is explained as being an example of a "light echo". Light emitted by the star is reflected off of different sections of the expanding dust cloud surrounding the star, causing light from those differing areas to arrive at Earth at successively later and later times. In effect, we are seeing a sort of naturally animated exploded view (no pun intended) of the star, not terribly unlike MRI's or CAT scans that show successive layers of the human body (or so I divine from reading on the image series that this shot is taken from).
xoxoxoBruce Tuesday Apr 1 04:56 PM
Fudge ripple with a cherry?
goethean Tuesday Apr 1 06:11 PM
Indeed, <a href="http://www.space.com/php/multimedia/imagedisplay/img_display.php?pic=light_echo_animation_030226_02,0.gif&cap=ANIMATION:%20Four%20images%20of%20V838%20Mon.%20The%20different%20colors%20in%20the%20nebula%20reflect%20changes%20in%20the%20color%20of%20the%20star%20during%20its%20outburst.%20CREDIT:%20NASA,%20ESA%20and%20H.E.%20Bond%20(STScI)">the animation</a> is an even neater visual.
Slight Tuesday Apr 1 08:22 PM
Drydock Tuesday Apr 1 09:00 PM
Lost and Found
Thank you soooo much. i actually lost that marble one day when i was playing in my yard. i thought that i would never see it again. If you could tell me where it is that you saw it, there would most certainly be a reward when i finally got it back. i am also looking for this one:
Griff Tuesday Apr 1 09:02 PM
Go ahead... touch it.... I double dog dare ya!
Nightsong Wednesday Apr 2 10:11 AM
That is one pretty pic! I thought people had to get to a certain "high" to see shit like that...lol. Mother nature supplies us with an even better one.:p
kisrael Wednesday Apr 2 01:04 PM
That's like the tackiest thing I've seen in space! It looks like "Star Wars Night" at a 1970s Disco!
juju Wednesday Apr 2 02:04 PM
Perhaps the star's brightness is a function of the density of the dust cloud partially obscuring our view? The same thing happens on a cloudy day when you try to to look at our sun.
dave Wednesday Apr 2 02:04 PM
It reminds me of a cordial cherry. Mmmmmmmmmm.
bjlhct Sunday Apr 6 03:19 PM
Temp, not brightness
Juju, they find the temp by wavelength (color) of the light, not by intensity. (brightness)
juju Sunday Apr 6 10:22 PM
But Undertoad said that the star was getting brighter without getting hotter. So the temperature is remaning the same while the brightness is changing.