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I haven't managed to formulate a coherent single answer, but here are several suggestions for where to find some hints of current topical research where you might be able to contribute. Open source projects Astronomy is increasingly using large open source projects, many written in Python, which itself free. For example, the Astropy project is trying to ...


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Geothermal activity can originate from a combination of: Residual heat from planet formation: During the formation of a planet, half of the potential energy of the parent region of dust and gas can be theoretically converted to kinetic energy---this is known as the Virial Theorem. The kinetic energy of the particles translate to a temperature. Internal ...


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If you have a telescope and use it often, there are things that you could definitely contribute. Discovering new comets is still something that amateurs do well. Tracking variable stars is also worthwhile.


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Those sites where one views a light transit curve or tries to classify a galaxy type are not very interesting to me. I feel I could investigate things more in depth than that. There is a lot more to many citizen science projects than that! I'd recommend having a look through all the projects available as there may be one in an area you are more ...


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Simple answer: the material is just too spread out. Forming a planetary-size object takes LOTS of collisions to build up enough matter to start gravitationally attracting the surrounding stuff. The Oort cloud is very far from the sun (starting at ~1000 AU, compared to a maximum of ~50 AU for Pluto), meaning that the icy fragments are moving very slow in ...


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You could probably get away with replacing molten iron, 7.87 g/cc, in the core with aluminum, 2.70 g/cc, and still generate a substantial magnetic field: Molten Metal Magnet It’s easy to create a magnetic field by using a battery to force an electric current through a loop of wire. But Earth’s core, a rotating mix of iron and nickel with internal flows ...


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Your final three questions: Should the supplementary Q&A sheet considered as legimate official definitions, or should it be considered as a one way of interpreting the Resolution B5? That supplementary Q&A absolutely should not be considered as legitimate official definitions. That Q&A pertains to the original draft of the resolution. The ...


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In fact there is no official definition of a satellite. Issac Asimov makes a good argument that the Moon is a planet since its orbit is convex around the Sun for its entire orbit, unlike the other moons of the solar system which are concave when in opposition and convex (to the Sun) when in conjunction. Additionally, the idea that a body is a satellite of ...


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Horizons Ephemeris Generator Here is a screen capture where vector option is chosen:


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Buy Astronomical Algorithms 2nd ed. by Jean Meeus. It is published by Willmann-Bell Inc. If you buy it direct from the publisher, you will get a corrected printing with all errata up to August 10, 2009. There are a number of systems for describing the location of a planet. This book provides a method to find the heliocentric longitude, latitude, and distance ...


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There's a few parts to this question, I'll give it a shot. Also, since you're asking about the geothermal energy of the earth, I'm going to ignore radiation from space and radioactive van allen belts (Jupiter has a very radioactive van Allen belt). Also, as voyager discovered when it left the solar system, there's more radiation in the form of cosmic rays ...


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A lot of the answer depends on Orbital mechanics and calculating that isn't easy. If no action is taken, Earth's orbit is still likely to change, but how much and in which direction is hard to say. Long before the sun goes red giant it will get too hot for the Earth. If the earth doesn't move, the sun's increased temperature will likely make the earth ...


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If you look at the Astronomical Almanac for the year 2011 as an example, in the table at the top of page E3, you find two measures of axial tilt. The third column is the declination of the planet's north pole for the mean equinox and equator of date 2011 January 0, 0 hours terrestrial time. So this is measured with respect to the Earth's orbit. The last ...


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Draw a line perpendicular to the planet's orbit. Measure the angle between this line and the planet's axis. That's the axial tilt, and it doesn't matter what other planets are doing. The Wikipedia page on axial tilt has some diagrams that help clarify this.


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Six days might be the most they could force people to work before giving them a day off? (The French tried 10 day weeks and that was too long between rests for most people) When we became more civilized we let the wage slaves take two days off. It's coincidentally the closest number of days to 1/4 lunar cycle and the length is a capitalist's wet dream (a ...



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