Email
Password
Remember meForgot password?
Log in with Facebook Log in with Twitter
Connect your Digital Journal account with Facebook or Twitter to use this feature.
Connect
Log In Sign Up
In the Media

article imageNew theory claims Galileo discovered Neptune

article:275582:7::0
By Kesavan Unnikrishnan
Jul 8, 2009 in Science
Share
According to a new theory proposed by Australian researchers, Astronomer Galileo Galilei may have discovered Neptune in 1613 — 234 years before the planet was officially found.
Studies on Galileo's notebooks reveal that he may have discovered Neptune in 1612, 234 years before its official discovery by Urbain Le Verrier. According to David Jamieson, head of the Melbourne University (MU) School of Physics, evidence of his discovery is buried in notebooks that were written while observing the moons of Jupiter in the years 1612 and 1613. During such observations, he also recorded the position of a nearby star which does not appear in any modern star catalog. Jamieson says:
It has been known for several decades that this unknown star was actually the planet Neptune. Computer simulations show the precision of his observations revealing that Neptune would have looked just like a faint star almost exactly where Galileo observed it.
After observing the star for several nights, Galilleo had found that the star appeared to have moved relative to an actual nearby star. A star would never change its position while planets orbit the Sun and move through the sky relative to the stars. According to Jamieson, this gives further evidence that he had actually observed Neptune.
Neptune is the farthest known planet in the solar system after Pluto lost its planet status in 2006. Neptune is never visible to the naked eye.
article:275582:7::0
More about Galileo, Neptune, Discovery
 
Latest News
Top News
Engage

Corporate

Help & Support

News Links

copyright © 2014 digitaljournal.com   |   powered by dell servers