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Old 03-07-2011, 09:36 AM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,816
The hunt for Quaoar continues…

Hello,

In the dim outer reaches of our solar system, I am still trying to obtain a satisfactory image of the Minor Planet (50000) Quaoar. I had an opportunity to set up on Friday and grab 3 x 15 min frames in between clouds, although Quaoar was uncomfortably close to a blazingly bright mag 16.68 star, which made the job of digging it out of the data that much more challenging.

Although I am confident that a have a good candidate for Quaoar, it would be nice to grab another image once it has moved on, to a less densely populated region, over the next week or so.

Quaoar lies a billion kilometers beyond Pluto and is a Magnitude 18.99 Minor Planet classified as a Trans-Neptunian Object.
  • Orbit Period: 284.9 years
  • Earth Distance: 42.2 AU
  • Sun Distance: 43.1 AU
  • Perihelion Distance: 41.6 AU
  • Aphelion Distance: 45.0 AU
  • Diameter: 560 - 1800 km
http://science.nasa.gov/science-news...7oct_newworld/
  • The 1st frame is a re-sampled view from the ST2000XM 1600x1200 original down to 800x600.
  • The 2nd frame is an inverted image of the 1st frame.
  • The 3rd frame displays a 10x10 arcmin overlay obtained from the US Naval Observatory Precision Measuring Machine Data Archive at http://www.nofs.navy.mil/
  • The 4th frame is a crop of the region containing Quoar with the USNO chart as an overlay.
  • The 5th frame is an enlarged crop of the region showing Quaoar.
  • The 6th frame is a screen capture from The SkyX Pro showing the calculated position of Quaoar.
Thanks for looking!

Cheers

Dennis
Attached Thumbnails
Click for full-size image (Quaoar Full Frame resize 800.jpg)
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Click for full-size image (Quaoar Full Frame resize Inverted 800.jpg)
133.6 KB94 views
Click for full-size image (Quaoar Full Frame resize Inverted USNO Chart Overlay 800.jpg)
149.3 KB78 views
Click for full-size image (Quaoar Inverted USNO Overlay Crop 800.jpg)
163.3 KB98 views
Click for full-size image (Quaoar Inverted Zoomed Crop 800.jpg)
77.3 KB115 views
Click for full-size image (The SkyX Pro.jpg)
41.9 KB99 views
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