Showing posts with label Meteors. Show all posts
Showing posts with label Meteors. Show all posts

Wednesday, May 7, 2014

'Quiet Sun' baffling astronomers

Credit: news.bbc.co.uk 'Still Sun' baffling astronomers

The Sun is the dimmest it has been for nearly a century.

There are no sunspots, very few solar flares - and our nearest star is the quietest it has been for a very long time.

The observations are baffling astronomers, who are due to study new pictures of the Sun, taken from space, at the UK National Astronomy Meeting.

The Sun normally undergoes an 11-year cycle of activity. At its peak, it has a tumultuous boiling atmosphere that spits out flares and planet-sized chunks of super-hot gas. This is followed by a calmer period.

Last year, it was expected that it would have been hotting up after a quiet spell. But instead it hit a 50-year low in solar wind pressure, a 55-year low in radio emissions, and a 100-year low in sunspot activity.  Read more >>

Source: http://news.bbc.co.uk/2/hi/science/nature/8008473.stm

Saturday, October 5, 2013

Another Fireball 'burns brightly with a tail of fire'

Credit Image: poleshift.ning.com

Another fireball 'burns brightly with a tail of fire' as it streaks across Alabama sky (video)

As thousands looked down on the football field in Tuscaloosa, many others were reportedly looking up at a possible meteor streaking through the sky over the stadium Saturday evening.

An eyewitness in Bryant-Denny Stadium reported that she was surrounded by screaming Alabama fans when "the fireball appeared in the sky above the upper deck and burned brightly with a tail of fire and disappeared within about 5 seconds."

For less than 10 seconds, a bright flash of light was visible over north and central Alabama, according to more than 200 eyewitness sightings posted on the American Meteor Society's website.

The AMS has mapped the reports it received from Alabama, Georgia, Kentucky, Maryland, North Carolina, Tennessee and Virginia.

Accounts from Alabama eyewitnesses – from Montgomery, Auburn, Cullman, Tuscaloosa, Birmingham, Decatur, Huntsville and elsewhere – range from the scientific to the spiritual.

An account from Montgomery reads: "Twilight observation. This was a very bright, sustained sighting that lasted approx. 7 seconds. Very slight downward arcing path. Much brighter and larger than any of the Perseids."

"It was beautiful. Life affirming. I feel very small," a Birmingham witness said.

A Cullman observer summed up the sighting, saying it was "the best meteor that I (have) ever seen in 50 years of observing meteors."

The reports come just a few weeks after a bright fireball passed unusually close to the earth's surface at 8:18 p.m. Sept. 9 and solicited reports of sightings from Alabama, Georgia and Tennessee.

If you think you saw a meteor Saturday tonight, you can report the location on the AMS website.

Source: blog.al.com