Spaghetti Nebula Simeis 147 Sh2-240
It's easy to get lost following the intricate filaments in this detailed image of faint supernova remnant Simeis 147 (S147). Also cataloged as Sh2-240, it covers nearly 3 degrees or 6 full moons on the sky. That's about 150 light-years at the stellar debris cloud's estimated distance of 3,000 light-years.
Anchoring the frame at the left, bright star Elnath (Beta Tauri) is seen towards the boundary of the constellations Taurus and Auriga, almost exactly opposite the galactic center in planet Earth's sky. This composite includes image data taken through narrow-band filters of Hydrogen-alfa and Oxygen-III. The supernova remnant 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.
Imaging lens: Samyang 135mm f/2.0 ED UMC.
Imaging camera: ZWO ASI1600MM Pro-Cool.
Mount: iOptron CEM60.
Guiding telescope: ZWO Mini Guider Scope.
Guiding cameras: ZWO ASI120MM mini.
Accessory: ZWO ASIAIR Pro · ZWO 8x 1.25" Filter Wheel (EFW).
Chroma 3nm Ha: 20x600" (gain: 200.00) -20C bin 1x1
Chroma 3nm OIII: 20x600" (gain: 200.00) -20C bin 1x1
Total integration: 6.7 hours
Processing: 2 days.
Imagining date: Nov. 19, 2020.
Location: UAE desert, Abu Dhabi, United Arab Emirates.