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Reprocessing : The Elephant's Trunk Nebula

Posted by Duncan at JD2455717.41369

This is the Elephant's Trunk nebula, part of the much larger IC1396 in Cepheus. Captured from my back yard in July 2010 with my then newly-acquired Takahashi FSQ-106 and QSI583wsg CCD camera.

To cut through the light pollution, this was captured using a narrowband H-alpha filter, in this case a filter with a 7nm wide passband manufactured by Baader.

Although this is very effective in cutting down the light pollution, the resulting signal is extremely faint; from my rough calculations the brightest parts of this image represent 1 photon landing on each pixel every 5 seconds...

Details:

CameraQSI583wsg
OpticsTakahashi FSQ-106
H-alpha (Baader 7nm)7 x 15 minutes


Filed under Narrowband, Nebulas

All content © Duncan Kitchin 2008-2012 unless otherwise indicated