Sunday, February 24, 2008
Congratulations cubed - Comet Al's third Secchi comet!
Comet Al has done it again, and again! Not content with finding a Kreutz family comet in the STEREO Secchi imager, he's found a second and a third!
The third one is a real cracker, as you can see in the animation above, it shoots through the field like a meteor! If the animation is a bit confusing at first, look at the illustration opposite. The comet heads bottom left to upper right, staring near the asteroid Pallas. The asteroid 2 Pallas, magnitude 10 at the time these Secchi images were taken (Feb 20th), is down the bottom. Both the animation and the JPG are assembled from aligning and stacking images from the STEREO Secchi H1A camera.
And if that is not enough, they have just located a 4th one just above this one. Sheesh! I just can't keep up!