NGC 346, now in lurid false colour

RickS (Rick) · #1 17-09-2011, 05:20 PM

A small nebula in the SMC.

3.5 hours Ha (red)
3 hours OIII (blue)
synthetic green

Taken using GSO RC10 with focal reducer (f/6.4) on AP900 mount under inner-suburban Brisbane skies. Camera was Starlight Xpress SXVR-H18 with Astrodon 5nm Ha and OIII filters.

I always struggle to get the colour right in LRGB images. Perhaps NB is the answer. Then again, perhaps not

Cheers,
Rick.

gregbradley · #2 17-09-2011, 09:54 PM

Gee that's very nice and such great resolution. I imaged that one recently and you've gotten much better resolution there.

It is predominantly an O111 object and O111 is a teal green so I think your colour is pretty close there.

Greg.

atalas · #3 18-09-2011, 12:36 AM

Nice shot Rick....love the bubbly detail.

Ross G · #4 18-09-2011, 07:10 AM

Hi Rick,

You have captured such great detail.

Thanks.

Ross.

Alchemy (Clive) · #5 18-09-2011, 07:41 AM

I shot this one a long time ago, clearly with narrowband you pick up a lot of gas detail that just doesn't come out in RGB, i think though you need to add some rgb data as the stars do give it the extra interest, the core area has a collection of what appear to be young hot stars with a rather intriguing collective spray of yellow stars off to one side.

This is a tough one to image as it's actually quite a small object.

RickS (Rick) · #6 18-09-2011, 09:41 AM

Quote:

Originally Posted by gregbradley

Gee that's very nice and such great resolution. I imaged that one recently and you've gotten much better resolution there.

It is predominantly an O111 object and O111 is a teal green so I think your colour is pretty close there.

Thanks, Greg. The RC10 and reducer seem to be working well together.

Quote:

Originally Posted by atalas

Nice shot Rick....love the bubbly detail.

Thanks, Louie!

Quote:

Originally Posted by Ross G

Hi Rick,
You have captured such great detail.

Thanks, Ross!

Quote:

Originally Posted by Alchemy

I shot this one a long time ago, clearly with narrowband you pick up a lot of gas detail that just doesn't come out in RGB, i think though you need to add some rgb data as the stars do give it the extra interest, the core area has a collection of what appear to be young hot stars with a rather intriguing collective spray of yellow stars off to one side.

This is a tough one to image as it's actually quite a small object.

Thanks for the suggestion, Clive. I will have a go at adding some RGB. That will certainly exercise my processing skills! I'll probably have to wait until I get up to Ten Chain Hill again to collect some good quality subs. The light pollution here is awful.

Cheers,
Rick.

ozstronomer (Geoff) · #7 18-09-2011, 12:40 PM

Rick

Nice image well done. Do you have some SII to add to it?

I might try this in RGB next 10Ch, if the haze ever clears

RickS (Rick) · #8 18-09-2011, 12:53 PM

Quote:

Originally Posted by ozstronomer

Nice image well done. Do you have some SII to add to it?

I might try this in RGB next 10Ch, if the haze ever clears

Thanks, Geoff. I might try for some SII later this week. If you get some RGB I might have a go at integrating it with the NB data (if you don't mind...) It is a fairly small object. I've been imaging it at 1600mm fl.

Definitely hoping for clearer skies by next Saturday!

Cheers,
Rick.

ozstronomer (Geoff) · #9 18-09-2011, 01:32 PM

No worries Rick, Fingers crossed for better weather next Sat

multiweb (Marc) · #10 19-09-2011, 11:04 AM

I like that a lot. Green always accentuates the details in Ha.

RickS (Rick) · #11 19-09-2011, 12:50 PM

Thanks, Marc! It's nice to have some imaging options that don't require simultaneously dark and clear skies since they seem to be in short supply around here...