Labels:text | screenshot | font | line | number OCR: BINARY STARS MORE THAN HALF of all stars exist in Astronomers may be able to identify groups of two or more, held together the visible star as a member of a by gravity. A binary star is a pair of binary-star system if its brightness stars that orbit the center of their seems to vary, or if its motion appears combined mass. Often, one of the stars to be influenced by the gravitational is too faint to be visible from Earth. field of a nearby object. Small invisible star Large visible star MEANDERING COURSE An astrometric binary system is one in which the visible member of the system is observed to be following a wobbly path through the sky. This is - due to the gravitational influence Orbital path Path of larger star of its invisible companion. of smaller star through space DOUBLE MEANDERING ...
