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IC417 / NGC1931 Spider

IC417 / NGC1931  Spider and the Fly   TriColor & BiColor

 IC417 and NGC1931 are in the constellation Auriga aproxmatily 10,000 light years from earth.  They are both young star clusters still embeded in glowing hydrogen gas and dust. The apparent diameter of NGC1931 is 3 arcminutes the apparent diameter of IC417 is 13 arcminutes. These are both emission and reflection nebulas. 

IC417 Spider Crop

NGC1931 Fly Crop

 

IC417 / NGC1931 BiColor

 

IC417 / NGC1931  20min Ha Subframe

IC417 /  NGC1931  20min Ha Subframes x 16 = 320 min combined image

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IC417 / NGC1931  20min OIII Subframe

IC417 /  NGC1931  20min OIII Subframes x 10 = 200 min combined image

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IC417 / NGC1931  20min SII Subframe

IC417 /  NGC1931  20min SII Subframes x 10 = 200 min combined image

 

 

Scope              TMB130mm

Camera           Apogee U8300

Mount               Atlas EQG

Filters               Astrodon  Ha5nm  OIII3nm  SII3nm

Exposures       Ha 5.3hrs    OIII 3.3hrs   SII 3hrs   20min subs

Location           Connellsville Pa.  Home Observatory     2011

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