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Simeis 147

Classification: SNR G180.0-01.7 Sh2-240, Simeis 147, Sh2-240
Constellation: Taurus (TUR) & Auriga (AUR)
Object Location: Ra 05h 39m 06s Dec +27° 59’55” (current)
Size & Distance: 220 x 200.0 Apx 3000 light yeas.

Date & Location: 11-02-2018 Little Blair Valley, CA
Exposure: HaRGB 285-40-40-40, Ha 19x15min. RGB 4x10 (bin 1x1)
Optics: Telescope Engineering Company APO110FL w/ TEC FF @ f/5.74, 631mm using the Optec FocusLynx
Mount: Astro-Physics 1200 GTOCP4 / ATS 10x36 pier.
Camera: FLI-PL16803 @-25c / FLI CFW5-7 / Guided by SBIG ST-I / w OAG.
Filters: Astrodon 50mm square, 3nm Ha, G2 RGB
Software: MaxImDL 6.10, Photoshop CS5, CCDStack, Topaz Labs.

Notes: Sky conditions: Good seeing, Winds 5 to calm, Temp Low 60’s
Image Field of view is 197 x 197 arcmin. Image Scale 2.94 arcsec/pix

Simeis 147, also known as the Spaghetti Nebula, SNR G180.0-01.7 or Sharpless 2-240, is a supernova remnant straddling the border between Auriga and Taurus. This is very difficult to observe due to its extremely low brightness.

The remnant has an apparent diameter of approximately 3+ degrees, an estimated distance of approximately 3000  light-years, and an age of approximately 40,000 years.