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Old 22-04-2010, 07:50 PM
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Bassnut (Fred)
Narrowfield rules!

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Join Date: Nov 2006
Location: Torquay
Posts: 5,065
NGC7009 Saturn neb-close up

Hi Guys

I found myself at 2am wondering what to do next, so I gave this one a poke. Not a lot of exposure time, Id like to improve on it, but its too low to start earlier right now, so Ill wait a mth or so and try again then. 2am starts are a bit taxing .

The pic is small, because this thing really is small, catalog says 58 arc/secs, but the central bit, by my reconing is 30 arc/secs, hence the lack of detail.

Standard Hubble pallet SII:Ha:OII, no lum channel. SII is woefull, needs hrs of 20min subs next time, hence the non-hubble like green spots at each end.

50mins, 10min subs, bin1 on each filter. AO only at 0.2hz (2 sec guide exposures)

I havent tried my new resolution multiplier filter yet, it produces 52 meg subs, might have to upgrade the PC for that.

And..........no stars, cause there just wasnt any at this FOV, so there.
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