Orion Nebula

This is made up from 16 images taken with my Nikkor 300mm f2.8 lens and another 16 taken with the same lens but with a 1.4x teleconverter on it. I wasn't really sure what would happen but it seems to have come out OK. It was completely unguided (1 and 2 second exposures) and I didn't make any darks, lights or flats.


If you look at a larger version you can see some star trails, I think they came from a test shot that was about 5 seconds or so that seems to have made it through.

  • astrometry.net 7y

    Hello, this is the blind astrometry solver. Your results are:
    (RA, Dec) center:(83.7354, -5.03443) degrees

    (RA, Dec) center (H:M:S, D:M:S):(05:34:56.496, -5:02:3.948)
    Orientation:156.40 deg E of N

    Pixel scale:2.74 arcsec/pixel

    Parity:Reverse ("Left-handed")
    Field size :2.31 x 1.53 degrees

    Your field contains:
    The star 42Ori
    The star θ1Ori
    The star θ2Ori
    The star 45Ori
    NGC 1973
    NGC 1981
    NGC 1975
    NGC 1976 / Great Nebula in Orion / M 42
    NGC 1977
    NGC 1982 / M 43

    View in World Wide Telescope

    If you would like to have other images solved, please submit them to the astrometry group.
  • Anthony Bowyer-Lowe 7y

    How do you get the separate images composited so well?

    I'm also impressed by this astrometry bot!
  • Alan Third 7y

    I use special software that finds the stars and then calculates how it has to rotate and translate each image. Then it combines them using strange mathematical techniques. The software I use is called Deep Sky Stacker. It's free if not the simplest application about.
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Uploaded on November 24, 2008
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