Jump to content

 

1825338873_SNRPN2021banner.jpg.68bf12c7791f26559c66cf7bce79fe3d.jpg

 

Hickson 44 ( gravitationally bound galaxies)


MikeD
 Share

Recommended Posts

A nice little group of galixies.:)

From last night, conditions were not great (I had to throw the first 13 subs, as the Lp was too strong) so I have thrown in a few from last year to help smooth things out a bit.

34 @ 5 mins through my 10" newt and HX916 CCD.

Mike.

yfronto-albums-mike-deegan-s-yfronto-s-images-picture9570-hickson-44.jpg

post-13376-133877542355_thumb.jpg

Link to comment
Share on other sites

  • Replies 26
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

Mike

Excellent image of a great group of galaxies. I have twice observed this group but my view did not take in all the components you have captured. I just about saw 4.

Thanks for sharing

Adrian

Link to comment
Share on other sites

Just spent the last hour trying for this one, but the scope had other ideas....guiding was terrible, so I gave up.

Slewed to the Leo Trio and it's all running perfectly....gremlins!!

Link to comment
Share on other sites

Another 50 minms added to this last night bringing the total subs on Hickson 44 to 44.:(

better background with the background galaxies showing better and the outter shell of ngc3185 (bottom) is just starting to show.

Mike.

yfronto-albums-mike-deegan-s-yfronto-s-images-picture9642-hickson-44-2.jpg

Edited by MikeD
Link to comment
Share on other sites

Deeper that Nietzsche. The extra time has really paid dividends. So smooth and detailed. I bet it was a joy to process.

Just spent the last hour trying for this one, but the scope had other ideas....guiding was terrible, so I gave up.

Slewed to the Leo Trio and it's all running perfectly....gremlins!!

Time you forked out on a decent mount Rob :( Actually it is so reassuring to hear this!

Link to comment
Share on other sites

  • 2 weeks later...

Great image Mike, I have a question, is there any reason why many deep sky images are shown in B&W? Does it make imaging easier or is more equipment needed to get good colour images?

So about the question but only just about to start my journey into astrophotography.....

Link to comment
Share on other sites

Hi Fenriz.:hello2:

Ihave a mono( black and white) Camera.

To produce a colour image I first shot the luminance data (the black and white image you see above) and then still with the mono camera I shot new sets of data with colour filters, Red, green and blue.

This gives me 4 mono images one with no filter (Luminance) one mono image that has only recorded blue light that has passed through the blue filter, one mono image that has only recorded green light that has passed through the green filter and so on with the red filter.

The red, green and blue mono images are then put together with software to produce an RGB colour image this will provide the colour for the final result while the Luminance will provide the detail in the final image (an L-RGB image).

So to answer your question, The Black and white image here is part of the process of producing a colour image but many mono images you will see posted are mono narrow band filter images (e.g Hydrogen alpha targets) which only allow very specific wavelengths of light through to the camera and in the process block out moonlight and light pollution.

I hope that makes sense.:hello2:

One shot or colour CCD camera are i think less expensive ( because you don't need to buy a filter wheel and filters) but I find a mono camera more versatile.

There is now a colour version of this shot.:hello2:

Here

Mike.

Edited by MikeD
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.