A little off topic, but a bright fireball lit up Southern California last night:(Discovery channel has a video)http://news.discovery.com/space/asteroids-meteors-meteorites/possible-taurid-fireball-dazzles-southern-california-131107.htm
After writing about small impacts being more common than we previously thought, I have some good news: The chance of an impact from the newly-discovered asteroid 2013 TV135 have dropped to essentially zero.
A little off topic
but a bright fireball lit up Southern California last night...
At least we have some good news today:http://www.slate.com/blogs/bad_astronomy/2013/11/07/good_asteroid_news_tv135_no_longer_a_threat.htmlQuoteAfter writing about small impacts being more common than we previously thought, I have some good news: The chance of an impact from the newly-discovered asteroid 2013 TV135 have dropped to essentially zero.
A near miss last night over Murmansk.
Quote from: Danderman on 04/19/2014 04:21 pmA near miss last night over Murmansk.Nice find, but "a near miss"? That looked like your typical bolide, far from a Chelybinsk scale event.
Impossible to tell from one point of view.
Quote from: Danderman on 04/19/2014 07:46 pmImpossible to tell from one point of view.Well, not really. Good educated guesses can still be made. From the brightness and duration profile we can be pretty sure that it was a fairly small object that got disintegrated fast, although possibly with recoverable fragments on the ground. This is night footage where camera exposure is longer making objects appear brighter and yet the bolide didn't really turn "night into day". This suggests this object is many times smaller than Chelyabinsk. No sonic booms heard is another good clue about the magnitude of the event.
I think this theory is supported by the fact that the meteor's predicted orbit started in the Main Belt. It was probably knocked off of a parent body there by a collision, probably with a long-period comet.I wonder if there are any other significant bodies on the same orbital track, waiting for their moment?
Quote from: Ben the Space Brit on 05/28/2014 06:04 pmI think this theory is supported by the fact that the meteor's predicted orbit started in the Main Belt. It was probably knocked off of a parent body there by a collision, probably with a long-period comet.I wonder if there are any other significant bodies on the same orbital track, waiting for their moment?Exactly what I tought about it. Did this come in unnotissed ?
Better press release: http://neo.jpl.nasa.gov/news/news186.htmlInteresting that there is a slight gap above the Amazon, while slightly larger numbers where detected over Siberia and China. Anyone want to go all tinfoil and argue it is because there are no ICBM's in South America and it is not as well covered?