Galaxies - NGC 4945, 4945A, 4976 in Centaurus

[PhotonCollector (Paul)]

Geeday everyone,

Here's another image with the Baader UV/IR cut filter.

The star Xi 1 Centaurus appears as the bright white-blue star at bottom-right. The star Xi 2 Centaurus appears as the bright white-blue star on the bottom-left edge of the image. NGC 4945 is the large galaxy at centre-right, NGC 4945A appears as a faint smudge behind the bright white star at centre-bottom-left. NGC 4976 appears at the top-left corner.


Image NGC4945 20060424
Field of View 49' x 32' arc-minutes (approx.).
Telescope 12-inch f/5 newtonian telescope.
Guiding hand guided with 4.5-inch f/18 guide-scope.
Camera Canon EOS 300D - full spectrum enabled.
Exposures 8 x 5-minute exposures @ ISO-200.
Total Exposure time 40 minutes
Filter/equipment Baader 2" Multi-Purpose Coma Corrector.
Baader 2" UV/IR Cut Filter.
Processing Dark frame subtraction, bias and flat-fielded in Iris.
Photoshop for colour balance and image enhancement.
Exposure Date 2006, Apr 24.

[h0ughy (David)]

WOw very nice

[sheeny (Al)]

I second hOughy! ...WOW!

[Striker (Tony)]

Really Nice Paul,

I have noticed that all your images lately with bright stars have been very blue...really noticeable in the Omega shot..is this a more true color example or has more to do with the UV/IR filter your using.

[PhotonCollector (Paul)]

Originally Posted by Striker

Really Nice Paul,

I have noticed that all your images lately with bright stars have been very blue...really noticeable in the Omega shot..is this a more true color example or has more to do with the UV/IR filter your using.

The images are initially produced with the wrong colour balance (due to modded camera and IRIS), so it's up to me to get the colour balance correct. It's something I've been spending lots of time lately trying to get right - but as you have noticed, I am still trying.

The new Baader UV/IR filter has changed the colour balances again (there's no IR now) and so my battle with colour balance continues....

Paul

[Octane (Humayun)]

Paul,

Fantastic image, mate.

Try this in IRIS after you've set your BLACK point: RGBBALANCE 1.96 1 1.23

That should help you somewhat.

Regards,
H

[Lester]

I love it Paul.

[PhotonCollector (Paul)]

Originally Posted by Octane

Paul,

Fantastic image, mate.

Try this in IRIS after you've set your BLACK point: RGBBALANCE 1.96 1 1.23

That should help you somewhat.

Regards,
H

Thanks Octane, I'll try that and let you know how it goes.

[PhotonCollector (Paul)]

Originally Posted by Lester

I love it Paul.

Thanks Lester.