Sara Wager Astrophotography
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Simeis 147 in mono

Picture
Picture
Here's a comparison with the full moon so that you can see how large this target is!

Picture
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 of Auriga and Taurus. Discovered in 1952 at the Crimean Astrophysical Observatory using a large 25" 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 approx 3 degrees, an estimated distance of approximately 3000 (±350) light-years, and an age of approximately 40,000 years.It is about 1000 light years away and is roughly 15 light years in diameter.

Due to its size this is a 2x2 pane mosaic in order to fit the whole nebula in the frame.

Details
M: Avalon Linear Fast Reverse
T: Takahashi FSQ85 0.73x
C: QSI683 with Astrodon 3nm Ha filter

23x900s in Ha in each pane 

Totalling 23 hours of exposure.
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  • Recent images
  • Images Gallery
    • Interesting images
  • About me
    • Star People article
  • My Blog
  • Latest Dual rig adventure
  • Astro Pixel Processor tutorials
  • Asteroids and me.....
    • How to find asteroids
    • How to create an asteroid time lapse
  • My observatory
    • The observatory rebuild
    • Equipment
    • Light pollution and astro darkness
  • My guide to image capture
    • Real world comparison - Kodak / Sony chip
    • Dual imaging set up
    • Creating an inset in Photoshop
    • Artistic one channel processing
    • Rubbish in, Rubbish out - you decide
    • Image process tutorials
    • Start / finish - Processing is THE key
    • Building a mosaic >
      • SGPro - Creating a mosaic in software
    • The difference in RGB and Ha light
    • The benefits of extra subs in graphics
    • Narrowband information
    • To bin or not to bin...
  • Equipment reviews
    • PrimaLuceLab Eagle S
    • All things ODK 10
    • PrimaLuceLab PLUS mounting system
    • Avalon linear guide settings
    • Starting out with the Avalon StarGO - Fitting and connecting to a PC
    • Avalon StarGO - Setting a custom park
    • Mallincam All Sky
    • Aviosys IP Power 9258 4 port
    • Avalon M-Tre mount
  • My published images
  • Links
  • Other Astrophotographers
  • Useful books
  • Write in my Guestbook
    • Contact me