Science homework help... solar system stuff! :O help?!!?

word list;


black hole


variable star


photosphere


pulsar


binary star


chromosphere


quasar


corona




















questions...





what is a mysterious, briht, starlike object in the galxy core











betelgeuse... a large star oh high luminosity








whats a neutron star that rotates rapidly and gives out a beam of radiation picked up as pulse











whats the surface of the sun which emits the radiation we can see

















whats 2 stars orbiting a common center of gravity














whats athe hot gas of the sun visible only during a total eclipse of the sun








whats a collapsed star from which light cannot escape|||the last one is black hole.