# Tag Info

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I know it is an old question, but you may want to take a look at the Titius-Bode law. Especially Dubrulle and Graner[6][7] have shown that power-law distance rules can be a consequence of collapsing-cloud models of planetary systems possessing two symmetries: rotational invariance (the cloud and its contents are axially symmetric) and scale ...

4

There is indeed an optimal angle where Venus is brightest. Have a look at the following figure: The distance between Earth and Sun is $\Delta$, between Sun and Venus is $r$, and between Earth and Venus is $\rho$. The amount of light that Venus receives from the Sun is $$f \sim \frac{\pi a^2}{r^2},$$ where $a$ is the radius of Venus. When viewed from ...

14

I doubt if anyone has come up with a complete explanation, but some laboratory simulations have created similar patterns. They happen if the central and surrounding areas in a flat, circular disk of fluid have different velocities. Emily Lakdawalla at The Planetary Society covers it at this site. She also explains how other patterns (triangles & ...

1

it might be more accurate to say that our solar system is to some extent a failed binary star system - as there are stars out there with exoplanets in the 'brown dwarf range' of mass - if our star system had enough mass initially to result in such an arrangement, there probably wouldn't be an earthlike planet around for us to exist on and see it up close, ...

3

The atmosphere, if present on the daylight part of the surface, will be also present in the night side, providing mechanisms for heat transport from day side to night side. So if daylight side allows liquid water, the night side will be not much colder than cold places on Earth. Have a look at a paper: Merlis, T. M., & Schneider, T. (2010). ...

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This is not long term sustainable system to be called an atmosphere. It might occur if for example a water loaded asteroid fell on the permanent day side, but it will be an unstable system. The boiling water will escape eventually to space : 1) because of the tails of the kinetic energy in the distributions, This always happens in atmospheres but the ...

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Probably Mt. Chimborazo has the MOST gravity, as being in the "fattest" part of the planet and as one of the highest mountains you will have LOTS of mass generating more gravity (remember the more mass, the more gravity).

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The Iridium satellites can be easily seen naked eyes. They also have flares that permit to see them even easier. This is when the flares will happen and daily predictions for all brighter satellites.

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I think it is possible if you look at Ganymede it is bigger than Mercury but however if you know about other planetary systems there are gas giants much bigger than Jupiter. It is very possible for a gas giant to have a moon similar in size of earth however not in terms of mass. We can speculate that if the gas giant is a brown dwarf than it may be possible ...

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