Pluto Surface Observations 1: NH Post-Encounter Phase, 1 Aug 2015- 10 Oct 2015 |
Pluto Surface Observations 1: NH Post-Encounter Phase, 1 Aug 2015- 10 Oct 2015 |
Aug 1 2015, 05:53 PM
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Merciless Robot Group: Admin Posts: 8785 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
This topic will contain images & discussion of same as they arrive during the extended download period. Similar threads will be opened in coming months as required as acquired data & discussion proceeds.
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Aug 2 2015, 07:54 AM
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Junior Member Group: Members Posts: 82 Joined: 13-July 15 Member No.: 7579 |
User torque_xtr (http://www.astronomy.ru/forum/index.php?action=profile;u=28931) proposed the idea that Sputnik Planum is basin filled from the atmosphere by nitrogen. In this regard, I simulate the amount of heat obtaned by Pluto from sun irradiation.
For a start I make the map, in which replaced the central part of unexplored region near the south pole into Sputnik Planum vicinity, so you can see how much energy is absorbed bright and dark areas near the south pole. Figure shows amount of energy absorbed by surface of Pluto in one turn around the Sun. Colour picture shows the solar irradiation in the projection relative to the rotation axis of Pluto. Next pictures was made in projection relative the axis perpendicular both to the rotation axis and direction of Charon: At the center of second projection is a south pole, the north pole is on the left and right edge of the picture, the upper and lower edge are equatorial points with longitude 90° and 270°. Due to the large inclination of the rotation axis of Pluto to the orbital plane, Pluto's polar regions on average much hotter then equatorial region, so that in contrast to the Earth and Mars "polar cap" have to look at the equator. Minimum insolation during the plutonian year gives 1.703 gigajoules per square meter, the maximum - gives 1.952 GJ/m^2. Area Tombaugh absorbs a minimal amount of solar energy over the entire all surface of the planet. If it is assumed that the emissivity in the far infrared range varies less than in the optical range, Sputnik Planum would be cooler in which there is a continuous deposition of gases from the atmosphere occure. And this process is the driven force for glacier flow. |
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