Astronomer Finds Most Compact Planeta...

Astronomer Finds Most Compact Planetary System...

There are 1 comment on the RedOrbit story from Oct 16, 2012, titled Astronomer Finds Most Compact Planetary System.... In it, RedOrbit reports that:

Scientists have found one particular planetary system that crams five planets into a region less than one twelfth the size of the Earth's orbit.

Join the discussion below, or Read more at RedOrbit.

“Geologist [I'm Climate Change]”

Since: Mar 07

formerly Nuneaton

#1 Oct 17, 2012
Nice:

Resembles a very scaled up version of Jupiter's Galilean satellite system.

The Galilean satellites are being tidally forced (via solar tides) to migrate inward toward Jupiter, and Amalthea (apart ftom a few remnants covered in gunk from Io) is now lost.

Would be interesting to find out whether a large outer body such as a red dwarf exists orbiting in the ecliptic plane in the system providing a tidal force enabling the migration.

Tidal forcing and migration rates decrease noticeably if the orbit is inclined away from the ecliptic, however the same effect of orbital migration and outward drift of the "disc master" oject with the largest mass is occurring in the Saturn system with its axis and satellite orbital plane inclined away from the ecliptic. The inner satellite drift in this case results in very impressive rings.

Have a nice day: Ag

Have a nice day: Ag

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