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Anyone ever heard of the HaGO palette?

Processing Narrowband H-alpha OIII Deep Sky
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Oscar avatar
Oscar avatar
Supposedly, it gives the most natural colors in narrowband. H-alpha to red, green to green, Oxygen III to blue.

I got curious because I saw this video: https://www.youtube.com/watch?v=o4Rl3heOIro
Nick Grundy avatar
Nick Grundy avatar
Never heard of it, but very interesting. I might test it out on my next data set
ShelbyCouper avatar
ShelbyCouper avatar
Looks like a fun project to me also
Lynn K avatar
Lynn K avatar
He put SII to the left of Ha. As we all know, Ha is 656 and SII is 672, which graphs it to the right of Ha. That is Why the Hubble Palette uses SII as red. If it were to the left, as he mistakenly did, then SII would be designated as green instead of Ha.

One can also create a synthetic green channel with software, without the bad green gradients cause by a broadband green filter, in light polluted skies. This has beeb done for years. If one images in dark skies and is not effected by these gradients, then why do narrowband in the first place, if you are wanting a more true color spectrum.

Lynn K
Andy 01 avatar
Andy 01 avatar
Lynn K:
He put SII to the left of Ha. As we all know, Ha is 656 and SII is 672, which graphs it to the right of Ha. That is Why the Hubble Palette uses SII as red. If it were to the left, as he mistakenly did, then SII would be designated as green instead of Ha.

One can also create a synthetic green channel with software, without the bad green gradients cause by a broadband green filter, in light polluted skies. This has beeb done for years. If one images in dark skies and is not effected by these gradients, then why do narrowband in the first place, if you are wanting a more true color spectrum.

Lynn K

That is correct, for example - here is a method to combine Ha & O3 with a synthetic green channel  http://www.starrywonders.com/bicolortechniquenew.html

CS
Andy
Marcelo Muñoz avatar
Marcelo Muñoz avatar
I recently shared an LROGOB palette… https://astrob.in/jo7edt/0/
Pistachio_Enjoyer avatar
Pistachio_Enjoyer avatar
Supposedly, it gives the most natural colors in narrowband. H-alpha to red, green to green, Oxygen III to blue.

I got curious because I saw this video: https://www.youtube.com/watch?v=o4Rl3heOIro

I've heard it and have seen the video, though I'm not a fan of the idea. My personal taste is either to combine NB with RGB data for true color or to have false color HSO/SHO images.
Well Written