Wow that’s incredible. Do you plan to finish the Other NB or RGB?
Thank you Brian. Aiming to put together 100% pure narrowband. Just need more data.
This is the type of image that makes one want to go and delete all his own images of the Helix... Just incredible.
I think you did more than fine with the scope you have...
Thank you for your kind feedback Stelios.
Great work! Some very nice details I haven't seen before. I commend you on your dedication!
Thank you Nico. Took about 25 nights to collect all that data.
What a fantastic image. It doesn’t need any colour to be any more fantastic. Just 1 add above the background. Well Done.
Thank you Paul. After 50 hours there was not much visual difference, but I was curious so I kept going.
This is really lovely! Great dedication. I tried to get this same extended nebula with my 14" Planewave and 9 micron pixels but didn't capture it nearly as well. I think you should change your statement to Need a FASTER scope. Mine was F7. F4 and you are in business.
Actually, I think two other things are even more important: Sky brightness and elevation. I had to shoot this very low in the sky at 33 north latitude. So I was ending up with gradients that needed removal. Gradient removal can be less precise than the small ADU counts at times. My location is a bortle 3 but of course sky brightness is much worse low in the sky.
Glad you like it. You are probably right; with the same 4" with a reducer at f/4.5 I was getting higher SNR with 15-minutes than 20-minutes at f/6 with just a flattener. Data was acquired from a small coastal town at 20 south latitude, so not perfect neither, but the Helix passes overhead and there are hardly any gradients in the data.
Wow, you went really deep!
If you go for another 100h on OII you will see the big bang!
Enviado desde mi ANE-LX1 mediante Tapatalk
Another 100hrs? Oh no! LOL
Already have 30 hours of NII and 20 hours of OIII. Will try SII as well before putting a colour version together.