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The Planetary Data System ( PDS) is a distributed data system that NASA uses to archive data collected by Solar System missions. The PDS is an active archive that makes available well documented, peer reviewed planetary data to the research community. [1] The data comes from orbital, landed and robotic missions and ground-based support data ...
SpaceEngine. SpaceEngine is an interactive 3D planetarium and astronomy software [2] initially developed by Russian astronomer and programmer Vladimir Romanyuk, [3] with development continued by Cosmographic Software as of 2022. It creates a 1:1 scale three-dimensional planetarium representing the entire observable universe from a combination ...
Jet Propulsion Laboratory Development Ephemeris (abbreviated JPL DE (number), or simply DE (number)) designates one of a series of mathematical models of the Solar System produced at the Jet Propulsion Laboratory in Pasadena, California, for use in spacecraft navigation and astronomy. The models consist of numeric representations of positions ...
Jupiter is the biggest planet in our solar system, according to NASA. The planet is what’s known as a gas giant, which means it doesn’t have a solid surface — though it may have a solid core ...
A numerical model of the Solar System is a set of mathematical equations, which, when solved, give the approximate positions of the planets as a function of time. Attempts to create such a model established the more general field of celestial mechanics. The results of this simulation can be compared with past measurements to check for accuracy ...
Sizes to scale. The Earth Similarity Index ( ESI) is a proposed characterization of how similar a planetary-mass object or natural satellite is to Earth. It was designed to be a scale from zero to one, with Earth having a value of one; this is meant to simplify planet comparisons from large databases. The scale has no quantitative meaning for ...
Sizes of the planets and stars Edit 1 Original - An illustration of the comparative sizes of planets and stars. Starting with the planet Mercury at the top left we follow a growing sequence of planets and then a growing sequence of stars until we reach the second largest known star VV Cephei in the bottom right. It's a mind-blowing sequence.
Several other planets, such as Gliese 180 b, also appear to be examples of planets once considered potentially habitable but later found to be interior to the habitable zone. [1] Similarly, Tau Ceti e and f were initially both considered potentially habitable, [63] but with improved models of the circumstellar habitable zone, as of 2022 PHL ...