This is the incredible Simeis 147 aka Spaghetti Nebula, or Sharpless 2-240. It is a large supernova remnant in the constellations of Taurus and Auriga and is a result of supernova explosion 40,000 years ago. This nebula covers about 3° and is 3,000 light years away which means that the real size is about 140 light years across.
Simeis 147, also known as the Spaghetti Nebula, is a supernova remnant.
It has an estimated age of about 40,000 years, meaning light from the massive stellar explosion first reached Earth 40,000 years ago. But the expanding remnant is not the only aftermath. The cosmic catastrophe also left behind a spinning neutron star or pulsar, all that remains of the original star’s core.