Deep Sky
M4

M4
One of the most beautiful of the gobular clusters in my book.

There has to be a reason why this bad boy, globular cluster is listed in the top 10 of Messiers catalogue.  It is 75 light-years across and 7,200 light-years from earth and even the smallest of telescopes view it as a fuzzy ball of light.  Located in the the Scorpius constellation, it was discovered by Cheseauz in 1746 and Messier catalogued it in1764.  M4 contains at least 43 variable stars.

M4 has another claim-to-fame, there is a planet with the memorable name PSR B1620-26 B.  It lives just on the outskirt of the M4s core.  Astronomers figure this guy is some 13 billion years old, which is considerably older than our 4.65 billion years old earth.  PSR B1620-26 B is some 2.5 times the mass of Jupiter and takes approx. 100 years for it to orbit around binary stars.  These are not just ‘regular’ stars, one is a white dwarf – the other a millisecond pulsar.  Talk about stranger than fiction, makes Star Wars planet Tatween sp? Look pretty tame.