The chart below shows information about three stars. Name of Star Beginning of life cycle End of life cycle Star 1 nebulae white dwarf Star 2 nebulae neutron star Star 3 nebulae black hole Which of these charts best shows the original mass of the three stars?

One of the brightest comets of the 20th century was comet hyakutake, which passed close to the sun in early 1996. the orbital period of this comet is estimated to be about 30,000 years. find the semi-major axis of this comet’s orbit. compare it to the average sun-pluto distance and to the distance to alpha centauri, the nearest star to the sun, which is 4.3 light-years distant.