The Necklace Nebula lies about 15,000 light-years away and has a diameter of about 2 light-years. This planetary nebula formed thanks to a pair of Sun-like stars in a close binary system at the ...

The Necklace Nebula, also known by its less poetic designation PN G054.203.4, was formed around 25,000 years ago by a pair of Sun-like stars locked in a close orbital embrace. One of these stars ...

boasts a pair of symmetric rings that surround the nebula’s outer shell which scientists now believe were formed by precessing jet - suggesting that there is a binary star system at its centre.

The studies were first-of-their-kind panchromatic imaging surveys designed to understand the formation process and test models of binary-star-driven planetary nebula shaping. Kastner said analysis of ...