# Tag Info

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The true answer none of these cads (bullshit artists) will tell you. I'm not even going to tell you because it would upset the whole Establishment. Don't get obsessed with angular momenta because this is not the typical evolution of any (n>2) set of random gravitational bodies in free space. The idea of starting with such initial conditions has little ...

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This answer possibly isn't at the level that you would like, but I'm inclined to write it anyway because it's a good introductory answer. In the event that that this question does merge as duplicate, I'll probably just move my answer over there (as this is slightly different than the posted answers). First, watch this Minute Physics video as it provides a ...

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A magnitude is a somewhat convoluted measurement of luminosity. You probably have relative magnitude $m$ per $\rm arcsec^2$. You can start by using the distance modulus $m-M$ to calculate the absolute magnitude $M$: $$m-M=5\left(\log_{10}\left(\frac{d}{\rm pc}\right) - 1\right)$$ where $d$ is the distance. Once you have the absolute magnitude you can ...

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Neither database is "more reliable" because both draw from a plethora of sources. You can use either to get a rough idea of an object, but beyond that you have to look at what the source of the measurement is (both databases list the publication or other source that reported each measurement). In your particular example I'd be wary of the luminosity of 6.27 ...

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Various data from Kepler and stellar modeling allows the inclination of the orbit to be determined. Several SETI Seminar videos goes into this in some detail. Whether the eclipse cuts a little bit or straight through the middle of the star and the statistics that indicate complete misses are consistent with random orientations without enough data to see if ...

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The Wikipedia article has a section on "fate of the solar system" so you should hqve just checked that before asking. The time line of 4 billion years is not quite the 5.4 billion years before the sun becomes a red giant, but the collision will be an ongoing restructuring and re-formation, and before it's all settled bqck down, the issue will be moot.

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Kepler discovers planets by looking at the star and see the star get dimmer when the planet passes in front of the star. This would imply that the planet was orbiting on a plane parallel to Earth. This article states that nearly every star hosts a planet. Although I'm not an expert, this would suggest to me that the orbits of many of the planets on many ...

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Let's look closer to home. Axial tilt gives the axial tilt of the more familiar bodies in the Solar System. An axial tilt of greater than 90 degrees implies the body is rotating backwards. So we see Venus, with little axial tilt, rotating very slowly backwards (due to a tidal resonance with Earth) and Uranus and Pluto with pronounced tilts exceeding 90 ...

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There is no alignment between the Sun or the Solar System's net angular momentum and the "spin axis" of the Galaxy. Think for a moment about whether the line of the ecliptic (which marks the "equatorial line" of the Solar System) and the Milky Way (which roughly marks the plane of the Galaxy) are lined up? If this were so, then you would always see the ...

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