The establishment of the festival was initiated by President VÃ¡clav Havel, who opened Prague Castle to artists at the beginning of the 1990s in order to attract the public. The first performance of Shakespeare took place here in 1990 and the festival has been held here regularly since 1998.
1 A black dwarf is a white dwarf that has cooled sufficiently such that it no longer emits any visible light. 2  A brown dwarf is a substellar object not massive enough to ever fuse hydrogen into helium, but still massive enough to fuse deuterium âless than about 0.08 solar masses and more than about 13 Jupiter masses.
Yellow dwarfs are a class of Main Sequence star that includes the Sun (Sol). These stars are yellow stars with. spectral class G. Sol: The Sun is a yellow dwarf star (spectral class G2 V) with a mass of 1.9891 x 10^30 kg (about 2. thousand million billion billion tonnes) and a diameter of 1 392 000 kilometres and a luminosity of 3.83 x 10^26. watts.