The blue nebula, IC 4604.

tilbrook@rbe.ne (Justin Tilbrook) · #1 21-04-2012, 09:18 AM

Hi,

Here's another image from Thusday night, IC 4604 around Rho Oph. I love this blue nebula and the star field. The most difficult thing was to tease out the nebula, the blue colour just came out with 50% saturation.

Telescope 8” f/4 astrograph on a HEQ Pro 5 mount, orion mini guider.
Unmodded Canon 1100D at ISO 800.
12 x 300 sec subs ISO 800.
9 dark frames, 9 flat frames and 9 bias.
Stacked in DSS and post process in Phototshop.
Two images, one with a little more contrast.
Cheers,

Justin.

RobF (Rob) · #2 23-04-2012, 07:37 PM

Nice Justin. More evidence of your fantastic skies to get that much neb showing.

tilbrook@rbe.ne (Justin Tilbrook) · #3 24-04-2012, 05:52 PM

Quote:

Originally Posted by RobF

Nice Justin. More evidence of your fantastic skies to get that much neb showing.

Thanks Rob,

Yes very lucky with dark skies!

Cheers,

Justin.

naskies (Dave) · #4 24-04-2012, 06:31 PM

Nice one, although the severe image compression here isn't doing it justice. It'd be great to see a higher quality (or smaller) version of it?

tilbrook@rbe.ne (Justin Tilbrook) · #5 24-04-2012, 06:57 PM

Quote:

Originally Posted by naskies

Nice one, although the severe image compression here isn't doing it justice. It'd be great to see a higher quality (or smaller) version of it?

Hi,

Here's a less compressed version, hope this is better?

Thanks,

Justin.

RickS (Rick) · #6 24-04-2012, 07:32 PM

Nice work, Justin!

I got some subs including the same area on Saturday night but I haven't had a chance to process them yet. The seeing was very ordinary and I was having some camera issues so I don't have high hopes...

Cheers,
Rick.

Nico13 (Ken) · #7 24-04-2012, 07:50 PM

Quote:

Originally Posted by RickS

Nice work, Justin!

I got some subs including the same area on Saturday night but I haven't had a chance to process them yet. The seeing was very ordinary and I was having some camera issues so I don't have high hopes...

Cheers,
Rick.

Funny that,

I did some shots of exactly the frame of Justins nice shot on Sunday night and haven,t processed them yet either.
Will have to see what I got as well, was still a bit low though so might not have much.

Goosd work Justin.

Ross G · #8 24-04-2012, 09:14 PM

Good photo Justin.

Love the blue colour.

Ross.

tilbrook@rbe.ne (Justin Tilbrook) · #9 27-04-2012, 04:27 PM

Thanks,

Rick, Ken and Ross.
It will be interesting to see what yoo guys come uo with.

Cheers,

Justin.