MigL Posted July 20, 2015 Share Posted July 20, 2015 Einstein, Albert Developed a model for gravity known as General Relativity, which is the basis for modern physical Cosmology. Link to comment Share on other sites More sharing options...
ACG52 Posted July 20, 2015 Share Posted July 20, 2015 Transit- the passage of a celestial body across an observer's meridian,also the passage of a celestial body across the disk of a larger one. Link to comment Share on other sites More sharing options...
Janus Posted July 20, 2015 Share Posted July 20, 2015 Tombaugh, C. W. - American astronomer and discoverer of Pluto. Link to comment Share on other sites More sharing options...
ACG52 Posted July 20, 2015 Share Posted July 20, 2015 White Dwarf- A very small, white star that is the remnant core of a star that has completed fusion in its core. Link to comment Share on other sites More sharing options...
Mordred Posted July 20, 2015 Share Posted July 20, 2015 (edited) Isothermal sphere- distribution of matter around galaxies. Edited July 20, 2015 by Mordred Link to comment Share on other sites More sharing options...
MigL Posted July 20, 2015 Share Posted July 20, 2015 (edited) Fraunhofer lines Dark lines in the sun's spectrum which correspond to absorption wavelengths of component elements. ( where's the 'i' Mordred ? ) Edited July 20, 2015 by MigL Link to comment Share on other sites More sharing options...
ACG52 Posted July 20, 2015 Share Posted July 20, 2015 (edited) Superior Conjunction- a conjunction that occurs when a planet passes behind the Sun and is on the opposite side of the Sun from the Earth. Edited July 20, 2015 by ACG52 Link to comment Share on other sites More sharing options...
MigL Posted July 20, 2015 Share Posted July 20, 2015 NASA National Aeronautics and Space Administration. An American civilian agency overseeing the space program and aeronautical research. Link to comment Share on other sites More sharing options...
ACG52 Posted July 20, 2015 Share Posted July 20, 2015 Apastron- the point of greatest separation of two stars, such as in a binary star system. Link to comment Share on other sites More sharing options...
imatfaal Posted July 20, 2015 Share Posted July 20, 2015 Newton, Isaac: “Nature and Nature's laws lay hid in night: God said, Let Newton be! and all was light.” Alexander Pope 1 Link to comment Share on other sites More sharing options...
Mordred Posted July 20, 2015 Share Posted July 20, 2015 ( where's the 'i' Mordred ? ) First letter https://en.m.wikipedia.org/wiki/Singular_isothermal_sphere_profile Link to comment Share on other sites More sharing options...
ACG52 Posted July 20, 2015 Share Posted July 20, 2015 First letter https://en.m.wikipedia.org/wiki/Singular_isothermal_sphere_profile Starting letter was 'F',not 'I' Cepheid- a pulsating variable star. Link to comment Share on other sites More sharing options...
MigL Posted July 20, 2015 Share Posted July 20, 2015 Dark matter Postulated, non-luminous, mass distribution about a galaxy to account for its non-Newtonian spin. Link to comment Share on other sites More sharing options...
imatfaal Posted July 20, 2015 Share Posted July 20, 2015 Rubin, Vera. The first to formulate Dark Matter with strong evidence based on Galactic rotation curves Link to comment Share on other sites More sharing options...
zapatos Posted July 20, 2015 Share Posted July 20, 2015 American Astronomical Society - Formed in 1899 to enhance and share humanity's scientific understanding of the Universe. Link to comment Share on other sites More sharing options...
Janus Posted July 20, 2015 Share Posted July 20, 2015 YY Ori star - A type of irregularly variable star Link to comment Share on other sites More sharing options...
ACG52 Posted July 20, 2015 Share Posted July 20, 2015 Radiant- a point in the sky from which meteors in a meteor shower seem to originate. Link to comment Share on other sites More sharing options...
Acme Posted July 20, 2015 Share Posted July 20, 2015 Telesto - A moon of Saturn named for a mythological sea goddess. Link to comment Share on other sites More sharing options...
ACG52 Posted July 20, 2015 Share Posted July 20, 2015 Oort Cloud- a shell of comets that is believed to exist at the outermost regions of our Solar System. When given a name in the form of Tombough,C.W.do we key on the h in Tombough, or on the W? Link to comment Share on other sites More sharing options...
imatfaal Posted July 20, 2015 Share Posted July 20, 2015 Dwarf Planet. A small body orbiting the sun - it must be big enough to be spherical and be in hydrostatic equilibrium but may well not have cleared out local planetesimals; Pluto being the most famous example. I think you follow on the last letter given - ie the W in Tombaugh C W Link to comment Share on other sites More sharing options...
MigL Posted July 20, 2015 Share Posted July 20, 2015 Terrestrial Earth-like. Link to comment Share on other sites More sharing options...
ACG52 Posted July 20, 2015 Share Posted July 20, 2015 Libration- an effect caused by the apparent wobble of the Moon as it orbits the Earth. The Moon always keeps the same side toward the Earth, but due to libration, 59% of the Moon's surface can be seen over a period of time. Link to comment Share on other sites More sharing options...
MigL Posted July 21, 2015 Share Posted July 21, 2015 Nucleosynthesis The process of creation of elemental nuclei, such as creation of Hydrogen and Helium nuclei in Big Bang nucleosynthesis, and heavier nuclei in stellar and supernova nucleosynthesis. Link to comment Share on other sites More sharing options...
ACG52 Posted July 21, 2015 Share Posted July 21, 2015 Solstice - the time of the year when the Sun appears furthest north or south of the celestial equator. The solstices mark the beginning of the Summer and Winter seasons. Link to comment Share on other sites More sharing options...
Janus Posted July 21, 2015 Share Posted July 21, 2015 Elongation- The difference between the Moon's and The Sun's longitude. Link to comment Share on other sites More sharing options...
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