sábado, 25 de septiembre de 2010

Vocabulary#10: Stars

star: a large, hot ball of gases, which is held together by gravity and gives off its own light.

Black hole: an object whoos gravity is so strong that light can not escape it.

parallax: the apparent shift in an object´s location when viewed from two positions.


Light year:  the distance light trvels in a year.                              

constelletion: a number of stars that appear to form a pattern.

magnitude: the brightness of a star.

nebula: a cloud of gases and dust in space.

super nova: a star that explodes.

No hay comentarios:

Publicar un comentario