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For the ratios of the radii of the outer planets' deferents to radius of the Earth, the Commentariolus gives 1 13 ⁄ 25 for Mars, 5 13 ⁄ 60 for Jupiter, and 9 7 ⁄ 30 for Saturn. For the ratios of the radii of their deferents to the radii of the larger of their epicycles, it gives 6 138 ⁄ 167 for Mars, 12 553 ⁄ 606 for Jupiter, and 11 ...
ezSpectra [5] [6] Free C++ Interfaces with Q-Chem and other packages Franck-Condon factors, photoionization cross-sections, photoelectron angular distributions, magnetic properties Libwfa [7] Free C++ Interfaces with Q-Chem and MOLCAS: Natural orbitals, natural transition orbitals, exciton descriptor, density difference, and others
Systems Tool Kit (formerly Satellite Tool Kit), often referred to by its initials STK, is a multi-physics software application from Analytical Graphics, Inc. (an Ansys company) that enables engineers and scientists to perform complex analyses of ground, sea, air, and space platforms, and to share results in one integrated environment. [1]
Orbital replacement units (or on-orbit replaceable unit [1]: 21 ) (ORUs) are key elements of the International Space Station that can be readily replaced when the unit either passes its design life or fails. ORUs are parts of the main systems and subsystems of the external elements of the ISS, none are intended to be installed inside the ...
In celestial mechanics, a Kepler orbit (or Keplerian orbit, named after the German astronomer Johannes Kepler) is the motion of one body relative to another, as an ellipse, parabola, or hyperbola, which forms a two-dimensional orbital plane in three-dimensional space. A Kepler orbit can also form a straight line.
6.896 × 10 6 For the purpose of preliminary mission analysis and feasibility studies, certain simplified assumptions may be made to enable delta-v calculation with very small error: [ 24 ] All the planets' orbits except Mercury have very small eccentricity, and therefore may be assumed to be circular at a constant orbital speed and mean ...
Electron is a two-stage, partially reusable orbital launch vehicle developed by Rocket Lab, an American aerospace company with a wholly owned New Zealand subsidiary. [14] [15] Servicing the commercial small satellite launch market, [16] it is the third most launched small-lift launch vehicle in history.
Falcon 9 Block 5, the most prolific active orbital launch system in the world. This comparison of orbital launch systems lists the attributes of all current and future individual rocket configurations designed to reach orbit. A first list contains rockets that are operational or have attempted an orbital flight attempt as of 2024; a second list ...