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The Narrow Tarantula
Hi Everyone.
Just sharing my latest "achievement"... this is the first narrowband image I've taken. After waiting for clouds to clear up and line up with my days off and still struggling with trailing in the main image when guiding, I decided to capture at my modded 300D highest ISO setting, which is ISO3200 (hacked firmware) but limited to only 3 minute subs.
The channels are R:G:B = SII:Ha:OIII and I've used OIII as the luminance.
Subs taken over 3 nights:
SII: 30 (Night 2) + 60 (Night 3) x 180s ISO3200
Ha: 30 (Night 1) + 30 (Night 2) x 180s ISO3200
OIII: 30 (Night 3) x 180s ISO3200
Each channel stacked and dark subtracted in Nebulosity 3 and channels processed & combined in PS.
Im sure that the subs will be sharper when I iron out my trailling (polar alignment issues). Looks like that even short 3 minute subs with slight Polar MIS-alignment is enough to soften the image a bit.
Thanks for looking.
Mariusz
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