ACG52 Posted July 19, 2015 Share Posted July 19, 2015 Kelvin - temperature scale based on absolute zero. Link to comment Share on other sites More sharing options...
MigL Posted July 19, 2015 Share Posted July 19, 2015 (edited) Neutron star A star massive enough that when it runs out of fuel to sustain radiation pressure, its gravitational collapse overcomes electron degeneracy pressure ( but not neutron degeneracy pressure ). Edited July 19, 2015 by MigL Link to comment Share on other sites More sharing options...
Acme Posted July 19, 2015 Share Posted July 19, 2015 Romulus - Star Trek's inhabited second planet of the Romulan system in Sector Z-6. Link to comment Share on other sites More sharing options...
zapatos Posted July 19, 2015 Share Posted July 19, 2015 Scintillation - The atmospheric effects influencing astronomical observations. Link to comment Share on other sites More sharing options...
ACG52 Posted July 19, 2015 Share Posted July 19, 2015 Neutrino - A fundamental particle produced by the nuclear reactions in stars Link to comment Share on other sites More sharing options...
MigL Posted July 19, 2015 Share Posted July 19, 2015 Olber's paradox Why isn't the night sky bright ? Link to comment Share on other sites More sharing options...
ACG52 Posted July 19, 2015 Share Posted July 19, 2015 X-ray star - A star whose primary output is in the form of x-rays Link to comment Share on other sites More sharing options...
MigL Posted July 19, 2015 Share Posted July 19, 2015 Rigel Blue-white super giant star in Orion. Seventh brightest star in the sky and about 120000 times brighter than the Sun. Link to comment Share on other sites More sharing options...
Janus Posted July 19, 2015 Share Posted July 19, 2015 Luminosity - the measure of the light output of a star Link to comment Share on other sites More sharing options...
zapatos Posted July 19, 2015 Share Posted July 19, 2015 Yildun - A greenish star in the middle of the tail of the Little Bear (Also known as Ursa Minor, with Polaris being at the end of the tail), known as one of the "dancers" that circles around Polaris. Link to comment Share on other sites More sharing options...
ACG52 Posted July 19, 2015 Share Posted July 19, 2015 Nadir - the point on the celestial sphere directly beneath a given position or observer and diametrically opposite the zenith Link to comment Share on other sites More sharing options...
Janus Posted July 19, 2015 Share Posted July 19, 2015 Römer- A Danish astronomer who made one of the earliest measurements for the speed of light. also the name of a Lunar impact crater. Link to comment Share on other sites More sharing options...
ACG52 Posted July 19, 2015 Share Posted July 19, 2015 (edited) Rosalind- An inner satellite of Uranus, discovered by Voyager 2 on January 13,1986 Edited July 19, 2015 by ACG52 Link to comment Share on other sites More sharing options...
MigL Posted July 19, 2015 Share Posted July 19, 2015 Deneb Blue-white supergiant star. Approx 200 times the diameter of the Sun, and 200000 times brighter. Link to comment Share on other sites More sharing options...
ACG52 Posted July 19, 2015 Share Posted July 19, 2015 Barycenter- center of mass of a system of bodies. Link to comment Share on other sites More sharing options...
Acme Posted July 19, 2015 Share Posted July 19, 2015 Radiant - the point in the sky that meteor showers appear to come from. Link to comment Share on other sites More sharing options...
imatfaal Posted July 19, 2015 Share Posted July 19, 2015 Taurids - a meteor shower so named as their Radiant is in the Constellation Taurus Link to comment Share on other sites More sharing options...
zapatos Posted July 19, 2015 Share Posted July 19, 2015 Sterope - The name shared by two stars in the constellation Taurus. Link to comment Share on other sites More sharing options...
ACG52 Posted July 19, 2015 Share Posted July 19, 2015 Earth- A medium-sized rocky planet with an oxygen rich atmosphere occupying the third position around a yellow dwarf star named Sol. 1 Link to comment Share on other sites More sharing options...
MigL Posted July 19, 2015 Share Posted July 19, 2015 Helios In Greek mythology, the personification of the Sun. Also the names of two probes launched into heliocentric orbits to study solar processes. Link to comment Share on other sites More sharing options...
ACG52 Posted July 19, 2015 Share Posted July 19, 2015 Seyfert Galaxy-a main-sequence star which rotates rapidly, causing a loss of matter to an ever-expanding shell. Link to comment Share on other sites More sharing options...
Janus Posted July 20, 2015 Share Posted July 20, 2015 Yerkes System - A spectral classification system for stars Link to comment Share on other sites More sharing options...
ACG52 Posted July 20, 2015 Share Posted July 20, 2015 Mercury -closest planet to the sun. Link to comment Share on other sites More sharing options...
Acme Posted July 20, 2015 Share Posted July 20, 2015 (edited) Year - Time period based on Earth's rotation [around the Sun]. Edited July 20, 2015 by Acme Link to comment Share on other sites More sharing options...
ACG52 Posted July 20, 2015 Share Posted July 20, 2015 (edited) Retrograde -the orbital motion of an object in a clockwise direction when viewed from the north pole of the ecliptic. Edited July 20, 2015 by ACG52 Link to comment Share on other sites More sharing options...
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