Jump to content

sgl_imaging_challenge_2021_annual.thumb.jpg.3fc34f695a81b16210333189a3162ac7.jpg

M90 - My first LRGB image!


lukebl
 Share

Recommended Posts

Hi all,

Been having a lot of fun lately with an ancient MX716 mono CCD. It's only got 742x580 pixels, but I've been impressed how sensitive it is.

Well, this is my first attempt at LRGB imaging with it, of the galaxy M90 in Virgo. I know, the colour's a bit odd, but it is a first attempt at LRGB and it is only a little sensor so it's hardly going to compete with the current 'entry-level' Atik 314L's and the like. However, what surprised me was how much detail showed up in the galaxy, and how the deep the image goes. For instance, the two little galaxies at about 2 O'clock on the edge of the galaxy are of 19th magnitude. Now that's pretty faint for a light-polluted suburban garden!

So what's gone wrong with the colours? The image was about 25 x 4 minutes each of L, R, G & B, with LP filter & IR cut. 250mm f/4.7 Newtonian.

So, despite its limitations, I'm pleased at what possible with an old and little sensor. Also surprised that there are so few postings of this galaxy, since it's fairly bright and rather interesting.

lukebl-albums-luke-s-dsos-picture10827-m90-2011-04-22-rgb.jpg

And here's the mono version of it, which I think looks a lot better!

lukebl-albums-luke-s-dsos-picture10828-m90-2011-04-22-mono.jpg

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.