Simeis 147

From Wikipedia 

"Simeis 147, also known as the Spaghetti Nebula, or Sharpless 2-240, is a supernova remnant (SNR) in the Milky Way, straddling the border between the constellations Auriga and Taurus. It was discovered in 1952 at the Crimean Astrophysical Observatory by Grigory Shajn and his team using a Schmidt camera and a narrowband filter close to the Hydrogen Alpha transmission line. It is difficult to observe due to its extremely low surface brightness. This discovery was part of a survey conducted between 1945 and 1955, most likely using captured German equipment, as the observatory was practically destroyed during WWII. The Schmidt camera had a field of view of 175'. Many previously unknown hydrogen nebula were discovered this way, as they are not readily visible in regular photographs.

The nebulous area has an almost spherical shell and a filamentary structure. The remnant has an apparent diameter of approximately 3 degrees, an estimated distance of approximately 3000 (±350) light-years, and an age of approximately 40,000 years. At that distance, it spans roughly 160 lightyears."

Date :  December 2025

Location : Arizona Sky Village, Portal, Arizona

Equipment used :
 Lens or telescope -- RedCat 51 
 Mount -- AP 1200
 Camera -- ZWO ASI2600MC with OAG ASI 220    Optolong L-eXtreme Filter

Acquistion Software : NINA
Processing Software : PixInsight, Photoshop

Exposure Detail :  One Shot Color      Total hours  15.3