If he be seeking his own star as
he methodically turns and turns upon the leads, it should be but a pale one to be so rustily represented below.
The material's warm temperature indicates that it's about the same distance from its star as
Venus is from the sun.
By investigating the composition of this star as
well as that of a similar primitive star found 2 years ago, astronomers may be revealing the conditions in which the first stars formed in the universe.
Theory predicts that a star as
massive and as old as P Cygni should have cooled half as slowly - and thus brightened somewhat less - over the past 300 years, de Groot notes.
The idea is to watch the infrared light of a star as
the moon passes in front of it.
Latham's calculations, based on observations of 30 cycles, indicate the invisible companion circles the star every 84 days in an orbit as close to the star as
Mercury's orbit is to the sun.
But unlike other X-ray pulsars, GX1+4 has a red giant star as
a partner, and a red giant produces a slow, weak stellar wind unlikely to alter the ring's motion.