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Watch the Crab Nebula Expand Over a 13 Year Period
The Bad Astronomer writes "A thousand years ago, the light from the explosion of a massive star reached the Earth. We now call this supernova remnant the Crab Nebula, and a new image of the Crab taken by astronomer Adam Block shows the physical expansion of the debris, made obvious in a short video comparing his 2012 observations with some taken in 1999. The outward motion of filaments and knots in the material can be easily traced even over this relatively short time baseline."
LAME!!! just 2 exposures alternating back and forth.
Craaaaaaab people! Craaaaaaaab people! Craaaaaab people!
The newer one picks up more of the blue, so it looks larger. If you watch the red, it is definitely moving outward. Will have to use this the next time I teach about nebula.
2.43759728 × 10^-9 FPS should be enough for anybody.
See my journal for slashdot ID's by year. Mine created in 2005. http://slashdot.org/journal/289875/slashdot-ids-by-year
Plus the biggest changes seem to be in the colors not the growth which might be related to the fact it was taken by two different telescopes....
Technology, the cause of and solution to all of life's problems.
The second "larger" image was processed differently - more lightening of the dark end & over exposed. All the stars bloom in the new image as they've been enhanced stronger than the older image. Granted the internal filaments did move slightly, there is cheating to make it look more pronounced.
from 09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0
to 45 2F 6E 40 3C DF 10 71 4E 41 DF AA 25 7D 31 3F
We should all take this time to remember the brave folks who, thousands of years ago, had to self destruct their crab-class starship to save the universe from the Daleks.
Ahh yes, a couple of loud mouth idiots from a church yelled at a couple of loud mouth idiots from another church, imagine that! Such a coincidence this happened at the same time as the Crab Nebula exploding.
Ignore the parts that are differently visible and the color differences, and focus on the parts that are the same in both images.
You'll see that the elements from the earlier photo have moved away from the center of the nebula and this is visible relative to all the background stars.
G.