Hubble captures the stars of globular cluster NGC 6440

Wanting like a glittering swarm of buzzing bees, the celebrities of globular cluster NGC 6440 shine brightly on this NASA Hubble Area Telescope picture. The cluster is positioned some 28,000 light-years away within the constellation Sagittarius, the Archer.

Globular clusters like NGC 6440 are roughly spherical, tightly packed collections of stars that reside on the outskirts of galaxies. They maintain a whole bunch of hundreds to hundreds of thousands of stars that common about one light-year aside, however they are often as shut collectively as the dimensions of our solar system.

The info used to create this picture got here from 5 totally different Hubble observing applications, 4 of which centered on the properties of pulsars. Pulsars are extremely magnetized, rotating neutron stars emitting a beam of electromagnetic radiation from its magnetic poles. To us, that beam seems as a brief burst or pulse because the star rotates. Pulsars spin extraordinarily quick. Astronomers have clocked the quickest pulsar at 716 rotations per second, however a pulsar might theoretically rotate as quick as 1,500 rotations per second earlier than they slowly lose power or break aside.