October 12, 2010
Starcraft
PlayWhat is happening here?
These pictures were taken in totally different places.
This post is an acid test for AutoRaja :)
P.S: Please note that all posts will be manually screened after AutoRaja does its job
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Answer:
Observatories shoot a laser to the sky to create a fake star. They then focus on the laser to calibrate their telescopes. This results in images with stunning clarity.
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Using lasers to create artificial stars
Laser guide stars are a form of artificial star created for use in astronomical adaptive optics imaging.
Artificial(Man made) Stars
The laser beams are used to produce an artificial star
about 90 kms above the atmosphere
The first pic is from the Keck observatory in Hawaii which uses the artificial stars to find the existence of black holes..
Laser Guide Star Adaptive Optics (LGSAO)
Hi AutoRaja ;)
Speckle imaging with Laser Guide Star Adaptive Optics
Developed by Andrea Ghez of UCLA
Laser Guide Star Adaptive Optics (LGSAO)
Laser Guide Star Adaptive Optics (LGSAO)
http://en.wikipedia.org/wiki/Laser_guide_star
Laser guide stars are a form of artificial star created for use in astronomical adaptive optics imaging.
Method for creating artificial stars which can then serve a guide for astronomers to calibrate equipment.
Laser Guide Star Adaptive Optics (LGSAO), where astronomers use a laser to create an artificial guide star on the Keck II 10-meter telescope to correct the blurring of a star with adaptive optics.
Telescopes studying the birth of stars / death of stars/ supernovae by firing powerful laser lights at the atmosphere.
This reduces the visual distortion and can give a better image – Adaptive optics
Laser guide star
The laser is creating an artificial “reference” star for adaptive telescope focusing using a method called Laser Guide Star or LGS.
Creating a virtual star to look for black holes, correct atmosphere’s blurring effect. I think the first is taken from an observatory in Hawaii.
Laser guide star – Calibrating very large telescopes
Creating an Artificial star for Adaptive Optics stuff…
They are all man made stars- Laser stars.
Orientation of telescopes and setting the focus by creating a virtual star in the atmosphere using a laser beam.
Bouncing a Laser off the moon?
an effort to find out what lies at the centre of the milky way,which may be a black hole,from keck observatory,in hawaii.
Lasers being used to create virtual guide stars needed for speckle imaging. The technique is now called ‘Laser Guide Star Adaptive Optics’ (LGSAO).
Laser guide star adaptive optics (LGS AO) system.
An artificial guide star is created using LASER to correct the blurring of a star.
Laser Guide Star Adaptive Optics(LGSAO)
more here : http://news.discovery.com/spac.....holes.html
Laser Guide Star (LGS) which is an Adaptive optics system where in a very powerful laser is shot into the sky and is used as a reference to correct the blurring effect of the atmosphere on images
Laser Guide Star Adaptive Optics employed at different telescopes. Basically, shine a known laser light, see how the atmosphere distorts them and apply the computed correction to the actual star light.