Showing posts with label Star Trails. Show all posts
Showing posts with label Star Trails. Show all posts
Friday, 21 January 2011
Time-lapse of the Night Sky
Watch in HD: http://www.youtube.com/v/kiRvtZCvAKk&hd=1
A 4 hour timelapse, made up of 483 separate 30 second images.
The video shows the apparent movement of the stars and Milky Way across the skies of Laragne-Montéglin, in the High Alps of Southern France.
Higher resolution star trail image in this post http://horizonastro.blogspot.com/2010/12/pole-star.html
Canon 450D, 18mm F/3.5
Wednesday, 22 December 2010
The Pole Star...
By 3000AD, Gamma Cephei will be closer to the pole than Polaris!
In 12,000BC Vega was at the pole, and will be there again in 14,000AD!
Polar alignment during the time of the Greeks would of been a nightmare! They had no pole star due to the slow precession of Earth's axis, rotating every 26,000 years.
In 12,000BC Vega was at the pole, and will be there again in 14,000AD!
Polar alignment during the time of the Greeks would of been a nightmare! They had no pole star due to the slow precession of Earth's axis, rotating every 26,000 years.
Subscribe to:
Posts (Atom)