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Terra's Big Neighbor
#3
(08-04-2014, 10:20 AM)Cray Wrote: Also, would a somewhat larger planet in Venus's orbit (say, 2x Earth mass) be a problem for Earth's orbital stability?

No, a planet that size in Venus' orbit (assuming eccentricity and semi-major axis remain the same) would only extend the planet's gravitational reach Solward by slightly more than 1 percent (1.013%, or 0.691 AU) and Earthward by slightly less than 1% (0.945%, or 0.755 AU). The planet would, all else but mass remaining the same, probably be a bit brighter in Earth's sky (its radius would be 34.891% larger) than Venus is now, though the cloud cover might be less.

Radtech497
"I'd much rather see you on my side, than scattered into... atoms." Ming the Merciless, Ruler of the Universe
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Messages In This Thread
Terra's Big Neighbor - by Cray - 08-04-2014, 10:20 AM
RE: Terra's Big Neighbor - by iancampbell - 08-04-2014, 10:53 AM
RE: Terra's Big Neighbor - by radtech497 - 08-04-2014, 01:20 PM
RE: Terra's Big Neighbor - by Cray - 08-05-2014, 09:24 AM
RE: Terra's Big Neighbor - by radtech497 - 08-05-2014, 10:51 AM
RE: Terra's Big Neighbor - by Cray - 08-06-2014, 11:21 AM
RE: Terra's Big Neighbor - by radtech497 - 08-06-2014, 03:18 PM
RE: Terra's Big Neighbor - by stevebowers - 08-05-2014, 10:10 AM
RE: Terra's Big Neighbor - by four - 08-05-2014, 07:18 PM
RE: Terra's Big Neighbor - by Drashner1 - 08-06-2014, 10:28 AM
RE: Terra's Big Neighbor - by kch49er - 08-05-2014, 10:57 PM
RE: Terra's Big Neighbor - by iancampbell - 08-06-2014, 05:13 AM
RE: Terra's Big Neighbor - by stevebowers - 08-06-2014, 09:20 AM
RE: Terra's Big Neighbor - by iancampbell - 08-07-2014, 04:34 AM
RE: Terra's Big Neighbor - by Cray - 08-08-2014, 10:43 AM
RE: Terra's Big Neighbor - by radtech497 - 08-08-2014, 01:53 PM
RE: Terra's Big Neighbor - by Cray - 08-08-2014, 09:25 PM
RE: Terra's Big Neighbor - by four - 08-08-2014, 11:29 PM
RE: Terra's Big Neighbor - by Cray - 08-09-2014, 09:00 AM
RE: Terra's Big Neighbor - by xilman - 08-09-2014, 07:18 PM
RE: Terra's Big Neighbor - by iancampbell - 08-10-2014, 05:23 AM
RE: Terra's Big Neighbor - by Cray - 08-10-2014, 10:06 AM
RE: Terra's Big Neighbor - by iancampbell - 08-11-2014, 07:56 AM
RE: Terra's Big Neighbor - by iancampbell - 08-09-2014, 04:25 AM
RE: Terra's Big Neighbor - by stevebowers - 08-09-2014, 06:51 PM
RE: Terra's Big Neighbor - by stevebowers - 08-10-2014, 06:26 AM
RE: Terra's Big Neighbor - by Cray - 08-10-2014, 10:24 AM
RE: Terra's Big Neighbor - by stevebowers - 08-10-2014, 07:05 PM
RE: Terra's Big Neighbor - by stevebowers - 08-11-2014, 07:09 AM
RE: Terra's Big Neighbor - by stevebowers - 08-11-2014, 08:14 AM

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