Comet Lovejoy Q2 - 3 Hours of Rotation
Taken by Mike Broussard on January 25, 2015 @
Maurice, Louisiana, USA
Click photo for larger image
| |
Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: Unavailable
|
|
| More images
Details:
More evidence that the comet is rotating or spinning around an axis. This is just over 3 hrs of time. The animation is composed of 3 frames. The first is 35x2 minutes long and was started at 00:43 UT on Jan 25th, 2015. The next frame was started at 02:25 UT and was 34x2 minutes. The final frame started at 03:49 UT and is 6x8 minutes. The angle of rotation in that time looks to be about 5 degrees. So, if we take 360 degrees and divide by 5 degrees we get 72, which is how many 3 hr periods to total one rotation. 72 times 3 hrs = 216 hours total time for 1 rotation. 216 divided by 24 hrs = 9 days. Bingo!
Photographer's website:
http://blog.cajunastro.com
|
|
|
