Rudolphine Tables and instructive examples for computing planetary positions. For most stars these tables were accurate to within one arc minute, and included corrective factors for atmospheric refraction. The tables were sufficiently accurate to predict a transit of Mercury observed by Pierre Gassendi in 1631 and a transit of Venus observed by Jeremiah Horrox in 1639. Rudolphine Tables The Rudolphine Tables () consist of a star catalogue and planetary tables published by Johannes Kepler in 1627, using some observational data collected by Tycho Brahe (1546–1601). The tables are named as "Rudolphine" in memory of Rudolf II, Holy Roman Emperor. Star tables had
Stars and planetary systems in fiction with most writers of his era, his settings did not extend beyond the Solar System, and so his work is not found in this article. Planetary systems (mostly hypothetical or imaginary) of real stars appearing in fiction are: In 2011 three Super-Earths were confirmed in orbit around 82 Eridani (HD20794). Barnard's Star is a red dwarf of apparent magnitude 9 and is thus too dim to be seen with the unaided eye. However, at approximately 6 light-years away it is the second-closest stellar system to the Sun; only the Alpha Centauri system is known to be closer. Thus, even though