Click here if you are having trouble logging into the forums
Privacy Policy |
Please read our Terms
of Service | Signup and
Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User
ricci
member
Reged: 04/10/08
Posts: 98
Loc: Italy
|
|
Because of the planetary movements the baricenter of the Solar System oscillates in comparison to the theoretical center, at times pushing itself very inside the Sun, at times very outside. To you discover who and because causes the strong minima and maximum!
www.pierpaoloricci.it/dati/baricentro_eng.htm
--------------------
My astronomical site:
www.pierpaoloricci.it
Also in English version
www.PIERPAOLORICCI.IT/index_eng.htm
|
starquake
member
Reged: 02/02/08
Posts: 135
Loc: Nádasdladány
|
|
Hi, I'm currently doing some research on stable orbits in multiple star systems. In such systems the position of the common baricentre of the stars is very important. Well, just one tought I'd like to express: we are currently unsure of the total mass and weight distribution of the Oort cloud. But I'm afraid it may outweight the total mass of the large planets of the Solar system. However, I know that it's in such a distance that it maybe does not affect the baricentre much, anyhow, what if it does? Also, this is also valid for the asteroid belt between Mars and Jupiter - most probably its weight is far less than that of the Oort cloud, but it affects the baricentre more severly because of its closeness to the Sun. (We can assume that its weight distribution is even, then of course its effects would not be such significant.) And then there are the numerous comets. Most of them is still unknown. Yes, they weight far less than the smallest planet, however can we really ignore them when calculating the
Solar system baricentre? Their courses make calculations difficult, I agree.
So, just my two cents. 
--------------------
"At night astronomers agree." /Matthew Prior/
"Astronomers, like burglars and jazz musicians, operate best at night." /Miles Kington/
10x50, 114x900, 300x1500
My astronomical sketches: Graphite Galaxy
Don't take my words too seriously, I might be wrong. And sorry for my English.
|
llanitedave
Humble Megalomaniac
Reged: 09/26/05
Posts: 10483
Loc: Amargosa Valley, NV, USA
|
|
The largest effect on the Barycenter of the solar system comes by far from Jupiter, followed by Saturn. The total mass of the asteroid belt is very small, much less than that even of the Moon. It would have almost no effect at all on the Solar System's Barycenter.
Here's a good site that shows the relative influence of all the planets on the Sun's wobble: http://orbitsimulator.com/gravity/articles/ssbarycenter.html
--------------------
"S.O.E." (Sauron's Other Eye) 16" Royce conical mirror: A permanent work in progress.
10" Homebuilt dob, old Coulter mirror
Next Project: The "Eye of Sauron" Observatory!
|
Pess
(Title)
Reged: 09/12/07
Posts: 1910
Loc: Toledo, Ohio
|
|
Quote:
Hi, I'm currently doing some research on stable orbits in multiple star systems. In such systems the position of the common baricentre of the stars is very important. Well, just one tought I'd like to express: we are currently unsure of the total mass and weight distribution of the Oort cloud. But I'm afraid it may outweight the total mass of the large planets of the Solar system. However, I know that it's in such a distance that it maybe does not affect the baricentre much, anyhow, what if it does? Also, this is also valid for the asteroid belt between Mars and Jupiter - most probably its weight is far less than that of the Oort cloud, but it affects the baricentre more severly because of its closeness to the Sun. (We can assume that its weight distribution is even, then of course its effects would not be such significant.) And then there are the numerous comets. Most of them is still unknown. Yes, they weight far less than the smallest planet, however can we really ignore them when calculating the
Solar system baricentre? Their courses make calculations difficult, I agree.
So, just my two cents.
The Oort cloud is made up of two distinct sections, an inner and an outer.
I think the outer we have a pretty good idea to its total mass to be about 5x earths mass.
The inner band is real vague. It is somewhere between 50x to 500x earth masses.
Jupiter is about 317 earth masses so the inner Oort cloud could be close (or not).
The Oort cloud is about a quarter the way to the next nearest star so gravitationally it has a very weak influence on our system. There is also no known mechanism for 'bunching' up this mass so it likely forms a spherical structure with perhaps some concentration along the plane of the system.
Pesse (shrugs) Mist
|
Lusty
super member
Reged: 08/24/08
Posts: 193
Loc: Florida USA
|
|
Quote:
The largest effect on the Barycenter of the solar system comes by far from Jupiter, followed by Saturn. The total mass of the asteroid belt is very small, much less than that even of the Moon. It would have almost no effect at all on the Solar System's Barycenter.
Here's a good site that shows the relative influence of all the planets on the Sun's wobble: http://orbitsimulator.com/gravity/articles/ssbarycenter.html
Hum, what about the Sun?
|
llanitedave
Humble Megalomaniac
Reged: 09/26/05
Posts: 10483
Loc: Amargosa Valley, NV, USA
|
|
Well, that goes without saying! 
--------------------
"S.O.E." (Sauron's Other Eye) 16" Royce conical mirror: A permanent work in progress.
10" Homebuilt dob, old Coulter mirror
Next Project: The "Eye of Sauron" Observatory!
|
|
3 registered and 1 anonymous users are browsing this forum.
Moderator: llanitedave
Print Thread
|
Forum Permissions
You cannot start new topics
You cannot reply to topics
HTML is disabled
UBBCode is enabled
|
Thread views: 174
|
|
|
|
|
|
|
Previous
Index
Next
Threaded
Edit
Reply
Quote
[Re: 