INCOMING!: метеорита в Челябинске, Russian Meteor - February 2013 |
INCOMING!: метеорита в Челябинске, Russian Meteor - February 2013 |
Feb 15 2013, 07:01 AM
Post
#1
|
|
Senior Member Group: Moderator Posts: 3241 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
Looks like a small meteoroid decided to spoil 2012 DA14's big day by exploding over Russia...
http://zyalt.livejournal.com/722930.html?nojs=1 -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
|
|
Feb 16 2013, 10:36 PM
Post
#2
|
|
Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
I think the first loud report may have been from the explosion itself. The continuing popping sounds were likely sonic booms created by the remaining relatively large pieces of the impactor as they flew on along the trajectory of the original bolide. The fact that the contrail splits into two distinct contrails for the length of it that was left during the fireball phase of the entry (i.e., when the original object exploded) shows that at least two streams of debris came out of the fireball and recombined into a single, more coherent stream after the fireball faded.
Of course, not all of the debris followed the main stream, lots of pieces big enough to cause sonic booms likely flew out in a multitude of different directions, and many to most of them would still be traveling at supersonic speeds. -the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
|
|
|
Lo-Fi Version | Time is now: 24th September 2024 - 02:45 AM |
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE COPYRIGHT |
OPINIONS AND MODERATION Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators. |
SUPPORT THE FORUM Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |