Another try at the Rosette

Hi All,
Despite a very, very, very windy evening I decided to have another go at the Rosette. Not up to the roses I've seen here and elsewhere lately, but I thought I'd offer it up anyway.

Beacuse of the wind, only could use about half the images I shot. Total of 106 x 60 seconds Ha, unguided with an MX716 through a Zenithstar 66 SD piggybacked on an LX90. Processed in AstroArt 3. Signiciant Log stretch to bring out the nebula, but also the noise.

Question: will 60 second subs ever be enough for Ha no matter how many? Or must I really start guiding to try for long integrations?

Thanks for any suggestions,
Larry

Attached Image:

Actually, your image looks pretty good for 60 second subs.
You're going to be dominated by read noise with 60 second exposures.
To take longer exposures to get a decent signal/noise ratio, you will need some sort of guiding.
With your setup, a DSI would be a nice entry level guider.

dan kowall