NGC 3521 in LRGB with Ha

[FrancoRodriguez]

I tried a deeper capture of luminance data with 80 x 300s frames to try to get as much of the halo as possible in this image. I didn't get enough Ha data to be happy with. Continuum subtraction was pretty tricky due to the red channel drowning out the feint Ha signal.



https://www.astrobin.com/gds15q/

[TrevorW]

Nice :)

[alpal]

Hi Franco,
that's an excellent result.
What location was it taken from?

cheers
Allan

[FrancoRodriguez]

Thanks! It was taken from my backyard roll off roof obsy in South East QLD, around 1/2 hour south of Toowoomba, Bortle 3-4 location. Due to the weird weather it took a few weeks to acquire the data, finishing 2 weeks ago

[Dave882]

That’s a wonderful result. Beautiful clarity and colour. Congratulations!

[gregbradley]

A very good 3521. It's an unusual and pretty galaxy.
That flocculent cloud needs a fair bit of exposure to be fully revealed.

You got a lot of it but it extends past that a bit more (like most galaxies really).

Greg.