New Mars Forums

Official discussion forum of The Mars Society and MarsNews.com

You are not logged in.

Announcement

Announcement: This forum is accepting new registrations by emailing newmarsmember * gmail.com become a registered member. Read the Recruiting expertise for NewMars Forum topic in Meta New Mars for other information for this process.

#1 2006-10-09 20:10:36

Palomar
Member
From: USA
Registered: 2002-05-30
Posts: 9,734

Re: Epsilon Eridani

Epsilon Eridani

The closest planet outside our solar system orbits a young Sun-like star only 10.5 light years away—so close that telescopes might soon be able to snap pictures of it, new observations confirm.

About 1.5 more massive than Jupiter, the planet takes 7-years to circle its star

First discovered in 2000.  Hubble and other 'scopes to attempt imaging it in 2007.

If moons circle the planet, they might have temperatures similar to Earth's and possibly liquid water...

However, the planet's orbit takes it so far from its star that any oceans on the moons would freeze. However, life could potentially survive on such moons if they were massive enough to retain a dense heat-trapping atmosphere like Saturn's moon, Titan


We all know [i]those[/i] Venusians: Doing their hair in shock waves, smoking electrical coronas, wearing Van Allen belts and resting their tiny elbows on a Geiger counter...

--John Sladek (The New Apocrypha)

Offline

#2 2006-10-09 20:25:59

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 29,431

Re: Epsilon Eridani

Not sure that betting on Hubble still being operational for this is the right bet to make.

Offline

#3 2006-10-10 01:26:35

maxie
Banned
From: Europe
Registered: 2005-02-15
Posts: 84

Re: Epsilon Eridani

Note: I deleted the duplicate thread started by Palomar in the same subforum. ( ? )

Offline

#4 2006-10-10 05:52:38

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 29,431

Re: Epsilon Eridani

Thanks for not... moving the one comment in it...

Now to try and remember what I had posted which really did not go with the sub title of imaging which is what this one really is intented to cover. Na.. why bother..

To get an image scientists will try and time it so that it is sort of side viewed with respect to a direct inline. Other options would be blocking the stars light with a disk, viewing it with multiple telescopes at different wavelengths other than visible light..

Offline

#5 2006-10-10 07:00:08

C M Edwards
Member
From: Lake Charles LA USA
Registered: 2002-04-29
Posts: 1,012

Re: Epsilon Eridani

Say, isn't Epsilon Eridani a star with a dust disk observable at infrared wavelengths?  I wonder how a gas giant fits the current models for such disks.

Hmm...


"We go big, or we don't go."  - GCNRevenger

Offline

#6 2006-10-10 09:55:27

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 29,431

Re: Epsilon Eridani

yup, on the same plane as the star's disk of gas and dust.

The finding marks the first time that the two objects have been observed at the same inclination around the same star and supports the theory that planets form from such disks.

Offline

#7 2006-10-10 14:31:06

maxie
Banned
From: Europe
Registered: 2005-02-15
Posts: 84

Re: Epsilon Eridani

Thanks for not... moving the one comment in it...

off-topic: Sorry. I've made a mistake. :oops:

This is what you said there:

I would be more thrilled if we had FTL transportation to allow us to journey to this very large world but even with a means to push us in the right direction with some sort of cryrogenics the power needed to keep the vehicle operation would be huge.


:oops:  :oops:  :oops:

Offline

#8 2006-10-10 16:30:33

Palomar
Member
From: USA
Registered: 2002-05-30
Posts: 9,734

Re: Epsilon Eridani

Say, isn't Epsilon Eridani a star with a dust disk observable at infrared wavelengths?  I wonder how a gas giant fits the current models for such disks.

Hmm...

Good question.  Wish I knew. 

Maxie:  No problem.  I may have accidentally created two threads while going back to insert a subject line under the header (edit).  But I didn't see two threads.  Not sure what happened.  Seems all's under control.  Back on topic... 

Will be keeping tabs on upcoming imaging plans for this extrasolar planet.  smile


We all know [i]those[/i] Venusians: Doing their hair in shock waves, smoking electrical coronas, wearing Van Allen belts and resting their tiny elbows on a Geiger counter...

--John Sladek (The New Apocrypha)

Offline

#9 2006-10-10 18:19:40

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 29,431

Re: Epsilon Eridani

Thanks for not... moving the one comment in it...

off-topic: Sorry. I've made a mistake. :oops:

This is what you said there:

I would be more thrilled if we had FTL transportation to allow us to journey to this very large world but even with a means to push us in the right direction with some sort of cryrogenics the power needed to keep the vehicle operation would be huge.


:oops:  :oops:  :oops:

No problem and thanks Maxie I did not want to muddle up the topic of getting clear images with being able to get to our nearest of stellar neighbors.

Offline

Board footer

Powered by FluxBB