Hyperstar Helix with synthetic flat

[Rod771 (Rod)]

Two years ago (when I was a sky nomad shooting multiple targets in one night ) I imaged the Helix with the Hyperstar for 24 mins see here. Rick suggested next time I should do a few hours to see what I could reveal. Last year I tried it at F7 1960mm FL but really couldn't get anything decent above the noise. A tough task shooting through LP here in northwest Sydney.

This season I tried it again with the Hyperstar lens @F2. Shot 3 hours this year. The extra time definitely soomthed the background out and revealed the same faint detail without needing to stretch it until it broke!

I also used Ray's synthetic flat technique dicussed here (scroll down page 3 , start at post 53) to calibrated the sub frames. In short you just use PI's DBE to extract the background model from a light sub and use it as a master flat. I also used a Superbias for the first time with this image.

Imaged with the C11 Edge HD with Hyperstar lens (560mm FL) F2.
Mount - CGEM DX
Canon 60Da @ ISO 800

Integration, 3 hours total. 180 x 60 sec subs.

Calibrated with darks, synthetic flat,and Superbias. Processed in Pixinsight.

Large click here

Thanks for looking

Cheers

Rod

[Atmos (Colin)]

That is looking quite nice rod, you're even starting to be able to see the fainter outer arm on the north west :-)

[batema (Mark)]

Very nice.

[Camelopardalis (Dunk)]

That's a cracker Rod so much contrast and texture in there.

[el_draco (Rom)]

Great shot.

[RickS (Rick)]

Some faint stuff starting to pop out, Rod. Very impressive for 3 hours RGB with a DSLR! Is it from a dark site or from home?

Cheers,
Rick.

[Rod771 (Rod)]

Originally Posted by Atmos

That is looking quite nice rod, you're even starting to be able to see the fainter outer arm on the north west :-)

Thanks Colin, yes it's just popping out.

Originally Posted by batema

Very nice.

Cheers Mark!

Originally Posted by Camelopardalis

That's a cracker Rod so much contrast and texture in there.

Thanks Dunk!

Originally Posted by el_draco

Great shot.

Cheers Rom!

Originally Posted by RickS

Some faint stuff starting to pop out, Rod. Very impressive for 3 hours RGB with a DSLR! Is it from a dark site or from home?

Cheers,
Rick.

Yeah thanks, Rick!

This one's from home through the muck. 3 hours from a dark site @F2, that would be interesting. I really threw everything at this background, dithering, bayer drizzle, Superbias , more darks than I usually take and Ray's cool DBE synthetic flat technique. I'm please with the result.

[RickS (Rick)]

Originally Posted by Rod771

This one's from home through the muck. 3 hours from a dark site @F2, that would be interesting. I really threw everything at this background, dithering, bayer drizzle, Superbias , more darks than I usually take and Ray's cool DBE synthetic flat technique. I'm please with the result.

Especially impressive then, Rod!

[Shiraz (Ray)]

Agree with Rick. That is an impressive image for a DSLR from suburban skies.

[Rod771 (Rod)]

Originally Posted by RickS

Especially impressive then, Rod!

Thanks again, Rick!

Originally Posted by Shiraz

Agree with Rick. That is an impressive image for a DSLR from suburban skies.

Thanks Ray!

Pleasing results can be achieved when applying the great advice you and others offer here on IIS. Its appreciated to no end.

[strongmanmike (Michael)]

Not bad Rod, that scope would kick R's from a dark sky!

Hyperstar F2 from the Sydney burbs....Rod Connors, astroimager, scope lover and Thrill Seeker (check out the guy at the 5min mark!!)

Mike

[Rod771 (Rod)]

Originally Posted by strongmanmike

Not bad Rod, that scope would kick R's from a dark sky!

Thanks Mike! It's had good results from Lostock but I've never got over 2 hours on one target up there with it.

Originally Posted by strongmanmike

Hyperstar F2 from the Sydney burbs....Rod Connors, astroimager, scope lover and Thrill Seeker (check out the guy at the 5min mark!!)

Mike

Yeah, like danger, I like to meet my astroimaging and "lick it" Although I think my approach to AP is more Leo W@nker than Rod Connors.