Tags: north | star | polaris | brightens

North Star Polaris Brightens, After Dimming For Two Decades

Wednesday, 05 Feb 2014 02:04 PM

By Courtney Coren

Share:
  Comment  |
   Contact Us  |
  Print  
|  A   A  
  Copy Shortlink
After dimming in the 1990s, the North Star Polaris is getting brighter and the change is rather dramatic, scientists say.

"It was unexpected to find," Scott Engle of Villanova University told Space.com.

Engle studies the changes the star has gone through over the years by looking through historical records and sometimes with the help of the Hubble Space Telescope.

Scientists started noticing in the early 1990s that Polaris, which is known for its brightness, was starting to dim. When Engle and his team began studying the star in 2000, they discovered that the Polaris was starting to brighten again.

"It started increasing rather rapidly," Engle said.

After combing through a substantial amount of data kept on the star from the last century, Engle's team concluded that the star had brightened over the last century.

Observations kept by Danish astronomer Tycho Brahe in the 16th century, Persian astronomer Abd al-Rahaman al-Sufi and Roman astronomer Ptolemy in the second century lead Engle's group to determine that the star may have brightened 4.6 times what it was in ancient times.

He presented his findings at the American Astronomical Society meeting in Washington, D.C. in early January.

Related Stories:

© 2014 Newsmax. All rights reserved.

Share:
  Comment  |
   Contact Us  |
  Print  
  Copy Shortlink
Around the Web
Join the Newsmax Community
>> Register to share your comments with the community.
>> Login if you are already a member.
blog comments powered by Disqus
 
Email:
Retype Email:
Country
Zip Code:
 
Hot Topics
Follow Newsmax
Like us
on Facebook
Follow us
on Twitter
Add us
on Google Plus
Around the Web
You May Also Like

New Technique to Grow Stem Cells Could Lead to Cloning

Friday, 18 Apr 2014 10:45 AM

Experts warned that a new technique allowing stem cells to be grown from the DNA of human adult males could lead to huma . . .

Earthlike Planet: Scientists Discover New Celestial Body, Kepler-186f

Friday, 18 Apr 2014 07:08 AM

NASA scientists have discovered an earthlike planet about 500 lightyears away in the Cygnus constellation and they’ve na . . .

Mars Rover Takes 'Selfie' After Spring Cleaning

Thursday, 17 Apr 2014 23:05 PM

A recent 'selfie' taken by the Mars rover Opportunity shows it is taking full advantage of the Martian winds' cleaning p . . .

Newsmax, Moneynews, and Independent. American. are registered trademarks of Newsmax Media, Inc. Newsmax TV, NewsmaxWorld, NewsmaxHealth, are trademarks of Newsmax Media, Inc.

 
NEWSMAX.COM
America's News Page
©  Newsmax Media, Inc.
All Rights Reserved