... How could Hipparchus know the position of the Sun among the stars so exactly, when stars are not visible in the daytime? ... ancient Egyptians regarded as pole star the star Thuban or "Alpha Draconis," the brightest star (=alpha) in the constellation ...
... the Earth modifies the apparent positions of stars and the arrival direction of the ... Also, in certain contexts, the frame of the distant stars. ... How are distances to stars measured by the parallax method? ...
... on the Moon, phases of Venus (like the ones of the Moon), stars of the Milky Way ... stretching across the heaven: Galileo found it was composed of many faint stars ... a collection of at least 100 billion stars, forming a flat wheel-shaped cloud ...
... Venus and Mercury moved back and forth across the position of the Sun, sometimes rising before the Sun as morning stars, sometimes setting after it as evening stars, but never appearing in the midnight sky. ...
... The energy of stars such as the Sun is mostly due to reactions between atomic nuclei, and most elements we know (excluding only the lightest ones) are apparently rapidly "cooked" in the catastrophic collapse of big stars, creating what is known as a ...
... like much, until one remembers what the stars are--distant suns, about a hundred ... to the speed of light, as it gives to the visible light of its billions of stars ...