CKA Forums
Login 
canadian forums
bottom
 
 
Canadian Forums

Author Topic Options
Offline
CKA Moderator
CKA Moderator
 Vancouver Canucks


GROUP_AVATAR
User avatar
Profile
Posts: 11692
PostPosted: Wed Apr 24, 2013 1:01 pm
 


Quote:
Hubble has taken its first close-up views of the much anticipated and potential ‘comet of the century’. On the night of April 10th, the space telescope snapped an image in visible light of Comet ISON while it was still at a whopping distance of 394 million miles from Earth (386 million miles from the Sun)- a bit closer than the orbit of Jupiter. (See also: New Comet Found; May Be Visible From Earth in 2013)

While today it is only faintly visible as a fuzzy speck of light in large telescopes, by end of November this year hopes are that ISON may briefly get as bright as the Moon in the sky.

Using the newly obtained Hubble data, astronomers estimate that the dirty snowball measures 3 to 4 miles wide, while the gas and dust filled coma that surrounds the nucleus stretches out approximately 3,100 miles in diameter – wider than the Australian continent.

Clearly visible on this new Hubble photo is the ghostly dust tail pointing away from the Sun, extending more than 57,000 miles. This iconic, ethereal feature of all comets form from surface material being ejected at high speeds into space.

As comet ISON heads towards the Sun over the next few months, the frozen surface of the nucleus will continue to warm up and melt. The Sun’s heat evaporates ices in the nucleus into jets of gases and dust, forming the snowball-like coma – which, by the way, is slowly getting denser and wider as the comet approaches the Sun.
(Related :New Comet Discovered—May Become “One of Brightest in History”)

Astronomers believe that this may be ISON’s first trip into the inner solar system, coming from the far outer reaches of the solar system, from a frozen reservoir of billions of hibernating comets. Based on orbital calculations, as the Sun’s gravity pulls in the comet, it’s trajectory will take it uncomfortably close to the Sun on November 28. In fact it will plunge within 700,000 miles of the fiery surface of our star before heading back out to the outer solar system and hopefully begin to put on a sky show.

So the big question on everyone’s mind now is – will ISON spectacularly light up our late autumn skies or will it fizzle- out and disintegrate as it dive bombs the Sun? Time will tell.


Photo can found here:
http://newswatch.nationalgeographic.com/2013/04/23/photo-hubble-gets-first-glimpse-of-possible-comet-of-the-century/?source=hp_dl1a_news_hubble_comet_closeup_20130424


Offline
CKA Super Elite
CKA Super Elite
User avatar
Profile
Posts: 8280
PostPosted: Wed Apr 24, 2013 1:05 pm
 


Strutz wrote:
Quote:
Hubble has taken its first close-up views of the much anticipated and potential ‘comet of the century’. On the night of April 10th, the space telescope snapped an image in visible light of Comet ISON while it was still at a whopping distance of 394 million miles from Earth (386 million miles from the Sun)- a bit closer than the orbit of Jupiter. (See also: New Comet Found; May Be Visible From Earth in 2013)

While today it is only faintly visible as a fuzzy speck of light in large telescopes, by end of November this year hopes are that ISON may briefly get as bright as the Moon in the sky.

Using the newly obtained Hubble data, astronomers estimate that the dirty snowball measures 3 to 4 miles wide, while the gas and dust filled coma that surrounds the nucleus stretches out approximately 3,100 miles in diameter – wider than the Australian continent.

Clearly visible on this new Hubble photo is the ghostly dust tail pointing away from the Sun, extending more than 57,000 miles. This iconic, ethereal feature of all comets form from surface material being ejected at high speeds into space.

As comet ISON heads towards the Sun over the next few months, the frozen surface of the nucleus will continue to warm up and melt. The Sun’s heat evaporates ices in the nucleus into jets of gases and dust, forming the snowball-like coma – which, by the way, is slowly getting denser and wider as the comet approaches the Sun.
(Related :New Comet Discovered—May Become “One of Brightest in History”)

Astronomers believe that this may be ISON’s first trip into the inner solar system, coming from the far outer reaches of the solar system, from a frozen reservoir of billions of hibernating comets. Based on orbital calculations, as the Sun’s gravity pulls in the comet, it’s trajectory will take it uncomfortably close to the Sun on November 28. In fact it will plunge within 700,000 miles of the fiery surface of our star before heading back out to the outer solar system and hopefully begin to put on a sky show.

So the big question on everyone’s mind now is – will ISON spectacularly light up our late autumn skies or will it fizzle- out and disintegrate as it dive bombs the Sun? Time will tell.


Photo can found here:
http://newswatch.nationalgeographic.com/2013/04/23/photo-hubble-gets-first-glimpse-of-possible-comet-of-the-century/?source=hp_dl1a_news_hubble_comet_closeup_20130424
Thanks for the heads up. Looking forward to a good show.


Offline
CKA Moderator
CKA Moderator
User avatar
Profile
Posts: 33120
PostPosted: Wed Apr 24, 2013 1:07 pm
 


I've seen a few shots of the comet, looks like it will be as bright as Halle-Bopp a few years ago.

Thanks Strutz!


Offline
CKA Elite
CKA Elite
 Los Angeles Kings
User avatar
Profile
Posts: 4680
PostPosted: Wed Apr 24, 2013 1:34 pm
 


This is going to be one of my highlights for the year. I used to work at an observatory; I might have to work my connections to see if I can't view this through a research telescope.


Post new topic  Reply to topic  [ 4 posts ] 



Who is online

Users browsing this forum: No registered users and 1 guest




 
     
All logos and trademarks in this site are property of their respective owner.
The comments are property of their posters, all the rest © Canadaka.net. Powered by © phpBB.