Great Nebula in Carina in H alpha and OIII

[MLParkinson]

I built this image of the Great Nebula in Carina back in February 2018 using data recorded during April 2017. It can take a long time for me to process data. Like most people, I go flat out at work all week. I hope that you like the image anyway. Technical Details: Two-panel mosaic built from many hours of exposures recorded using a Televue NP127is Refractor @ f/4.2, Astronomik 12-nm H alpha and OIII filters, and a QSI683wsg scientific camera.

Flickr: https://flic.kr/p/HbFeLt

[rogerco]

Beautiful image, lovely detail. Great shot.

Roger

[archioptic]

Beautiful shot Murray. Plenty of detail!

[RickS]

Nice to see such a big FOV, Murray!

[Peter Ward]

Sorry.... don't like the Swedish Flag colour scheme at all.

[MLParkinson]

Peter: You produce some beautiful photographs. Your use of traditional colour palettes is very effective. Kind regards, Murray :)

[Stonius]

Thats great! What sort of integration time is that pic, i wonder?

[MLParkinson]

I am fortunate enough to have a backyard observatory which I control remotely from my rumpus room. This means that I can capture very long sequences over multiple nights without too much stress.

Hydrogen alpha: 87 frames x 14 minute exposures = 20 hours.

Oxygen III: 48 frames x 14 minute exposures = 11 hours.

[Peter Ward]

Don't take it to heart...I'm not a fan of those meatballs in Ikea either :)

[Andy01]

There's good detail there Murray but to me it's overshadowed by the garish colour palette you have used.

May I respectfully suggest considering the following -

https://www.thoughtco.com/definition-of-complementary-colors-2577513

https://www.apartmenttherapy.com/color-theory-101-making-complementary-colors-work-for-you-179143


Cheers :D

Andy

[MLParkinson]

I don't understand what you're saying Andy. According to both of the articles you cited, the colour scheme I used for my latest Eta Carina image is a recommended complementary colour scheme. In fact, the colour scheme I used is the number #1 recommended colour scheme given in both articles. And it also follows that the red-blue colour scheme favoured by most astro-photographers are not complementary. Are you suggesting that I should abandon colour theory? That is, you are citing the article because you think they both provide bad advice? Correct?

[Andy01]

Sorry Murray, but I respectfully disagree, your colour scheme is cyan/yellow.
These colours are only separated by a few steps on the colour wheel.

Complimentary colours are usually opposite one another.

ie: If you favour cyan for the centre of your image, an orange would sit better then yellow :)

Of course there are no "Rules" as such in NB imaging, but basic colour theory can be helpful when determining one's selections of colour palette.

[multiweb]

Hey Murray, looking past the colors which is a personal preference, your stars are burnt on the high resolution but the details you've got are very good. So I reckon if you do a repro and watch out for white clipping with your stars you'll have a corker and one for the cool wall. :thumbsup: