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 January 17 2010  The Dance of the Pleiades |
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The Pleiades are among those objects which are known since the earliest times. At least 6 member stars are visible to the naked eye, while under moderate conditions this number increases to 9, and under clear dark skies jumps up to more than a dozen (Vehrenberg, in his 'Atlas of Deep Sky Splendors', mentions that in 1579, well before the invention of the telescope, the astronomer Moestlin had correctly drawn 11 Pleiades stars, while Kepler quotes observations of up to 14).
The cluster was first examined telescopically by Galileo, who recorded more than 40 member stars. It was an early subject for astronomical photography, being first photographed by Paul and Prosper Henry in 1885.
Intes Micro MN-56 5" F6 Maksutov Newtonian
Celestron CI-700 Mount
Modified Canon 400D
Guided with an Orion 100mm F6 and Meade DSI
Image Acquisition and Guiding with MaximDL
Imaged on 11/11/09 and 12/20/09
290 minutes total exposure time (58x5)
Stacked and Calibrated with Bias Darks and Flats with Deep Sky Stacker
Processed with MaximDL and Photoshop CS2 |
| Submitted by: Josh (JoshuaH) | Location: Rattle Snake Observatory near Smithton, MO | Date: December 20 2009 |
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January 17 2010
Views: 1311
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One very clod night in December I could see those blue nebula in that area.