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What Are the Solar System Objects in this Image?
On 24 May I made the first set of (what I hope will be) a series of
images of Vesta aimed at showing its retrograde motion against the fixed stars. I posted a grayscale composite of red and blue FITS images at http://www.davidillig.com/ast-vesta070524.shtml. This set of RGB images has two interlopers. I don't do much Solar System observing and I have no idea what they are. One object was near the edge of the field to begin with, and I am ignoring it. The second object required nearly 28 minutes to traverse approximately 3 deg. 32 min. of arc. I have accurate identities/coordinates for the stars in the image, but I can't correlate any objects with the time of the exposures. Thanks for the help! Davoud -- usenet *at* davidillig dawt com |
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What Are the Solar System Objects in this Image?
On Fri, 25 May 2007 06:17:09 GMT, Davoud wrote:
On 24 May I made the first set of (what I hope will be) a series of images of Vesta aimed at showing its retrograde motion against the fixed stars. I posted a grayscale composite of red and blue FITS images at http://www.davidillig.com/ast-vesta070524.shtml. This set of RGB images has two interlopers. I don't do much Solar System observing and I have no idea what they are. One object was near the edge of the field to begin with, and I am ignoring it. The second object required nearly 28 minutes to traverse approximately 3 deg. 32 min. of arc. I have accurate identities/coordinates for the stars in the image, but I can't correlate any objects with the time of the exposures. Hi Davoud- Can't say what you caught, but the velocity is just right for the medium Earth orbit zone around 20,000 km that is used for most navigation satellites, and some communications satellites. I'd start by checking if any GPS or Glonass satellites were in the right place. _________________________________________________ Chris L Peterson Cloudbait Observatory http://www.cloudbait.com |
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