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Old 02-03-2008, 08:24 AM
tornado33
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Join Date: Jan 2005
Location: Newcastle, NSW, Australia
Posts: 4,116
Cone nebula with Hubble's variable nebula

Last night I shot the Cone Nebula area with the 6 inch SN.

14x10 mins ISO 400, amongst cloud patches, occasionally I'd have to hold a cover over the scope for a minute or 2 while cloud patches drifted past the area, I didnt want to terminate the exposures early or they wouldnt match the darks. Modded 350D used. As an experiment I wanted to record as much infra red as possible , so though I used the Baader UHC-S filter I did not use my uv/ir filter, and photographic tests I did during the day show that plenty of IR does get past the UHC-S on its own. Baader MPCC coma corrector used. Total imaging time less cloud interruptions is around 130 mins. Id managed to fit in Hubbles Variable nebula, lower left, with a full res. crop of it also. Meade "cometracker" 6 inch SN, hand guided with Qguider on Orion shorttube 80mm f5 putting guidestar image on laptop.

Processed in Iris and PS.
Scott
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