Comet Machholz Rides over the Pole

March 11, 2005

Uploaded 3/12/05

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 Now located about 5 degrees straight up from Polaris in the northern sky, this comet is still just barely naked eye from our dark Happy Jack site, making it around magnitude 6.5 or so. This image with a good 2 degree field around the comet shows a blue ion tail to the right, and a broad diffuse fan pointing generally upward. The comets emerald green coma is still very intense in coloration, with a small stellar nucleus in the middle easily seen as well. The stars as you may notice are trailed. That is because the image is guided on the comets moving nucleus to get a sharp image of the comet, while the background stars trail a bit.

The 10D and most DSLR's have the perfect spectral response for shooting comets. They peak in the green and at ISO 800 to 1600 allow some very detailed images of these celestial visitors.

Instrument: 6" f/3.6 Comettracker Meade Schmidt Newtonian Platform: Televue GEM Camera: Canon 10D @ ISO 1600 Exposure: 1x15 mins Filters: NONE Location: Payson, Arizona Elevation: 5100 ft. Sky: Seeing 6/10, Transparency 8/10 Outside Temperature: 50 F Processing: Photoshop CS, PixInsight HOME SCHMIDT GALAXIES EMISSION NEBS REFLECTION NEBS COMETS GLOBULARS OPEN CLUST PLANETARIES LINKS 


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