Stellar passage shaped solar system
Posted: Thu, Dec 2, 2004, 7:14 AM ET (1214 GMT)
Some of the objects in the outer solar system may have originated in other solar systems, according to research published in the current issue of Nature. Using computer modeling, astronomers showed how the newly-formed solar system could have been disrupted by the close passage of another star about 30-200 million years after the Sun formed. That flyby could have stripped some objects from our solar system, while the Sun's gravity took some objects from the other star's solar system. Astronomers identified one Kuiper Belt Object, 2000 CR105, that is the most likely solar system member to have been captured from a passing star, based on the KBO's highly elliptical and inclined orbit. Sedna, a large planetoid discovered earlier this year with a very eccentric, outer orbit, likely formed around the Sun, but a star's close passage could have disrupted the planetoid's orbit into something more like its current orbit.
Some of the objects in the outer solar system may have originated in other solar systems, according to research published in the current issue of Nature. Using computer modeling, astronomers showed how the newly-formed solar system could have been disrupted by the close passage of another star about 30-200 million years after the Sun formed. That flyby could have stripped some objects from our solar system, while the Sun's gravity took some objects from the other star's solar system. Astronomers identified one Kuiper Belt Object, 2000 CR105, that is the most likely solar system member to have been captured from a passing star, based on the KBO's highly elliptical and inclined orbit. Sedna, a large planetoid discovered earlier this year with a very eccentric, outer orbit, likely formed around the Sun, but a star's close passage could have disrupted the planetoid's orbit into something more like its current orbit.
Related Links:
| <<previous article | next article>> |
|
news in brief
|
|
Pentagon dismisses $1.2 trillion cost estimate for Golden Dome
Posted: Sat, May 16 9:36 AM ET (1336 GMT) Cowboy Space proposes 20,000 satellite orbital data center constellation
Posted: Sat, May 16 9:33 AM ET (1333 GMT) |
|
news links
|
|
Thursday, May 21
A Look Back at Hubble’s Most Breathtaking Images
Nautilus — 5:33 am ET (0933 GMT) Greenlight for next two ESA Scout missions
ESA — 5:33 am ET (0933 GMT) The SpaceX S-1 filing is packed with eye-popping deadlines. Here are the most important ones.
Business Insider — 5:31 am ET (0931 GMT) Germany touts pan-German space command amid European push to supplant US tech
Defense News — 5:30 am ET (0930 GMT) Acquisition reform ‘necessary’ but ‘not sufficient,’ U.S. Space Force official says
Aerospace America — 5:29 am ET (0929 GMT) |
