Simeis 147, also known as the Spaghetti Nebula, SNR G180.0-01.7 or Sharpless 2-240, is a supernova remnant (SNR) in the Milky Way, straddling the border between the constellations Auriga and Taurus. Discovered in 1952 at the Crimean Astrophysical Observatory using a 25-inch Schmidt-Cassegrain telescope, it is difficult to observe due to its extremely low brightness.
The nebulous area is fairly large with an almost spherical shell and filamentary structure. The remnant has an apparent diameter of approximately 3 degrees or 6 full moons, an estimated distance of approximately 3000 (±350) light-years, and an age of approximately 40,000 years.
It is believed that after its stellar explosion a rapidly spinning neutron star known as pulsar PSR J0538+2817 was left behind in the nebula core, emitting a strong radio signal.
Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: FLI ML16200
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor (for stacking & mosaic) & PixInsight,
Filters: Astrodon Ha (3nm), Astrodon (Series 2) RGB
Accessories: Robofocus Focuser, ATIK EFW3
Original Resolution: 8041 x 6270 (Full Mosaic)
Dates: 26th Nov - 15th Dec 2018
Frames: (This is a 4 panel mosaic image)
Astrodon Ha 4 x 27 x 20'
RGB 4 x 60 x 3'
Total integration = 12 Hours for each of 4 panels = 48 Hours.
Center (RA, Dec):(84.996, 27.963)
Center (RA, hms):05h 39m 59.005s
Center (Dec, dms):+27° 57' 45.423"
Size:4.07 x 3.27 deg
Radius:2.610 deg
Pixel scale:1.9 arcsec/pixel
Orientation:Up is 181 degrees E of N
The nebulous area is fairly large with an almost spherical shell and filamentary structure. The remnant has an apparent diameter of approximately 3 degrees or 6 full moons, an estimated distance of approximately 3000 (±350) light-years, and an age of approximately 40,000 years.
It is believed that after its stellar explosion a rapidly spinning neutron star known as pulsar PSR J0538+2817 was left behind in the nebula core, emitting a strong radio signal.
Imaging telescopes or lenses: Takahashi FSQ130ED
Imaging cameras: FLI ML16200
Mounts: Takahashi EM 400 Temma 2M
Guiding telescopes or lenses: Takahashi FS60CB
Guiding cameras: QHY CCD QHY 5 II
Focal Extender / Reducer: None
Software: Sequence Generator Pro SGP (for capture) PHD 2 (guiding), Astro Pixel Processor (for stacking & mosaic) & PixInsight,
Filters: Astrodon Ha (3nm), Astrodon (Series 2) RGB
Accessories: Robofocus Focuser, ATIK EFW3
Original Resolution: 8041 x 6270 (Full Mosaic)
Dates: 26th Nov - 15th Dec 2018
Frames: (This is a 4 panel mosaic image)
Astrodon Ha 4 x 27 x 20'
RGB 4 x 60 x 3'
Total integration = 12 Hours for each of 4 panels = 48 Hours.
Center (RA, Dec):(84.996, 27.963)
Center (RA, hms):05h 39m 59.005s
Center (Dec, dms):+27° 57' 45.423"
Size:4.07 x 3.27 deg
Radius:2.610 deg
Pixel scale:1.9 arcsec/pixel
Orientation:Up is 181 degrees E of N
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