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Ye Olde Towne Crier (News) (Read 104677 times)
abyssoft
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Re: Ye Olde Towne Crier (News)
Reply #105 - 08/26/10 at 08:57:54
 
Is the sun emitting a mystery particle?
Previously unknown particle may be meddling with decay rates of matter
http://www.msnbc.msn.com/id/38863989/ns/technology_and_science-science/
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Re: Ye Olde Towne Crier (News)
Reply #106 - 08/26/10 at 10:23:03
 
Nasa Kepler Update
http://www.nasa.gov/news/media/newsaudio/index.html valid until Sept 2
Live broadcast for the next hour
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Re: Ye Olde Towne Crier (News)
Reply #107 - 09/11/10 at 03:41:13
 
Two small asteroids made a close pass to earth last days  
http://neo.jpl.nasa.gov/news/news169.html
Here's a screenshot for 3D glasses as seen from the sun.  
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PicN_KM_2010RF12__01012009_dat_1022.jpg
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Re: Ye Olde Towne Crier (News)
Reply #108 - 12/08/10 at 01:09:48
 
Not exactly "news" (it's two years old), but it's an interesting scientific paper relevant to our interests here Smiley
 
Stability of the Distant Satellites of the Giant Planets in the Solar System, by Shen and Tremaine (2008),  
http://iopscience.iop.org/1538-3881/136/6/2453
 
Fortunately it's in a free issue of the Astronomical Journal, so you can grab the PDF for free! I've only skimmed it so far, but the very interesting thing is that it says that there can be stable satellite orbits outside the planet's Hill Sphere, which I at least wasn't previously aware of. So check it out if you're interested!
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Re: Ye Olde Towne Crier (News)
Reply #109 - 12/09/10 at 09:51:02
 
Venus has a (quasi-satellite) moon?
 
http://www.universetoday.com/81575/venus-has-a-moon/
 
Apparently there's an asteroid in a 1:1 resonance with it! There's something to play with in gravity simulator Wink
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Re: Ye Olde Towne Crier (News)
Reply #110 - 12/09/10 at 10:37:24
 
Quote from Mal on 12/09/10 at 09:51:02:
There's something to play with in gravity simulator Wink

Been there.  Done that: http://www.orbitsimulator.com/cgi-bin/yabb/YaBB.pl?num=1176415775/0
Looks like we stumped Universe Today by over 3 years!
 
The paper you linked to yesterday seems like it's considering quasi satellites as well when talking about satellites that are stable beyond 2 Hill Spheres.
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Re: Ye Olde Towne Crier (News)
Reply #111 - 12/09/10 at 12:48:31
 
Quote from Tony on 12/09/10 at 10:37:24:
Been there.  Done that: http://www.orbitsimulator.com/cgi-bin/yabb/YaBB.pl?num=1176415775/0
Looks like we stumped Universe Today by over 3 years!

 
Nice! Seriously, I wonder why scientists don't seem to know about Gravity Simulator.  
I was reading an article yesterday about "curiosity-driven science" and how essential it is ( http://www.nature.com/news/2010/101117/full/468347a.html ), and it seems that everything we do on gravsim forums is definitely curiosity-driven - and look at the stuff we find!
 
Quote:
The paper you linked to yesterday seems like it's considering quasi satellites as well when talking about satellites that are stable beyond 2 Hill Spheres.

 
Yeah, I thought that a rather neat coincidence Smiley.
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Re: Ye Olde Towne Crier (News)
Reply #112 - 12/10/10 at 15:39:27
 
Quote from Tony on 12/09/10 at 10:37:24:
Quote from Mal on 12/09/10 at 09:51:02:
There's something to play with in gravity simulator Wink

Been there.  Done that: http://www.orbitsimulator.com/cgi-bin/yabb/YaBB.pl?num=1176415775/0
Looks like we stumped Universe Today by over 3 years!

The paper you linked to yesterday seems like it's considering quasi satellites as well when talking about satellites that are stable beyond 2 Hill Spheres.

Yeh , nice work !
When I read the old articles about the subject again  I see also 2001CK32 (http://www.orbitsimulator.com/cgi-bin/yabb/YaBB.pl?num=1175113160/19#19) was suspected to show Trojan behaviour . I've just started a sim in rotating frame on Venus and yep ! it seems to be in a tadpole orbit  nowadays around Venus .  
Will try to upload an animation later .
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Re: Ye Olde Towne Crier (News)
Reply #113 - 12/15/10 at 23:28:21
 
Attn: Planet Hunters! There's a new "citizen science" site (like Galaxy Zoo and Moon Zoo) where you can go through Kepler stellar transit data and possibly find planets!  
 
http://www.planethunters.org/
 
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Re: Ye Olde Towne Crier (News)
Reply #114 - 12/16/10 at 07:03:49
 
Very cool Thanks I like the interface, Think I may have spotted a couple hot jupiters.
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Re: Ye Olde Towne Crier (News)
Reply #115 - 02/02/11 at 12:42:56
 
How does a 6-planet system sound (all of which are transiting!!!)
 
http://www.nasa.gov/mission_pages/kepler/news/new_planetary_system.html
 

 
That'd be an interesting one to simulate...  
http://exoplanet.eu/star.php?st=Kepler-11
 
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Re: Ye Olde Towne Crier (News)
Reply #116 - 05/12/11 at 02:01:05
 
More news about retrograde Hot Jupiter orbits (and a paper!):
 
http://www.universetoday.com/85585/the-flip-side-of-exoplanet-orbits/
 
The paper can be downloaded from here: http://arxiv.org/abs/1011.2501
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Re: Ye Olde Towne Crier (News)
Reply #117 - 07/27/11 at 11:31:14
 
Earth's first trojan discovered! (2010 TK7)
 
http://www.nature.com/nature/journal/v475/n7357/full/nature10233.html
 
Anyone want to model it? Wink
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Re: Ye Olde Towne Crier (News)
Reply #118 - 08/04/11 at 11:51:57
 
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Re: Ye Olde Towne Crier (News)
Reply #119 - 09/01/11 at 10:11:25
 

Something to simulate with Gravsim ?  
 
http://arxiv.org/PS_cache/arxiv/pdf/1108/1108.3375v1.pdf
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