Abell 2218 lensing ~ 200 hours

[dan_adi]

Finally got to finish the master Luminance at 203 hours on the Abell 2218 galaxy cluster. Still undecided if to add colour data, but it would be cool to reach 270-ish hours like the first Hubble Deep Field. Data was gathered over the summer of 2021,2022,2023.

The best images of the cluster I found on Abin was Mortens and Howards. 

The image is on astrobin: Abell cluster

Thanks for looking!

[Elp]

That's some dedication, well done.

[wimvb]

I just saw your image on Astrobin; impressive. I'd like to image a gravitational lense at some point, but my sky conditions make it almost impossible. Where (above the clouds) do you image from?

[dan_adi]

On 11/02/2024 at 11:41, wimvb said:

I just saw your image on Astrobin; impressive. I'd like to image a gravitational lense at some point, but my sky conditions make it almost impossible. Where (above the clouds) do you image from?

Thank you wimvb,

I image from the worst possible place, sea level 😀. I'm in Bortle 5, so not so bad in terms of light pollution, but a lot o airmass. 

This season I will finish gathering the colour data, I only have 20 hours more to go, for a total of 300h (200h L, 100h color). For color I used a combination of sloan G, green, Sloan R filters for nice overlap between filters, inspired by this pixinsight article: tutorial

I've split the colour exposure like this: Astrodon Green filter 50 hours, Sloan G 25 hours, Sloan R 25 hours

[Norris Adams]

Competing with Hubble?

Somebody likes a challenge!

Amazing work - great achievement!

Regards,

Norris

[dan_adi]

16 minutes ago, Norris Adams said:

Competing with Hubble?

Somebody likes a challenge!

Amazing work - great achievement!

Regards,

Norris

Thanks Norris,

Challenging Hubble is fun! 

With newer high QE Cmos cameras is even easier 😬, but for now I'm still stuck with an older CCD