Star colours

[Peter Ward]

I managed to squeeze a couple old friends here into the one frame.

The Jewel box and Beta Crux (note the very red carbon star next to Beta)

http://www.atscope.com.au/BRO/images/southernjewels.jpg

[erick]

Nice Peter. My favourite open cluster and DY Crucis is becoming an old friend I always look for - so red. :thumbsup:

[spearo]

Beautiful,
This is the second time I get caught looking at one of your shots and as the image downloads, it does one "pass" which reveals a low res image then a second pass which reveals the details, At which point I think "wow!" and then...a third pass (unexpected) revealing amazing detail and the tiniest of stars...
absolutely impressive!
frank:thumbsup:

[iceman]

I love this type of image, loads of star, lots of colour, and the jewelbox as my favourite cluster. It doesn't get much better.

[leon]

Hmmm. Peter, It must be monitor as this one, although very nice shows heaps of noise on the left hand side, and a very blue overcast of the whole image.

Lets say that I took this image, maybe I would be wrong, but I would make it darker, because I do prefer it that way, but that is only IMHO.

Leon :thumbsup:

[Peter Ward]

No worries Leon. I know this image does not have a lot of noise, but you may be seeing .jpeg compression artifacts. I'm using a 23" Apple Cinema LCD display. I suspect you are using a CRT.

Right Click on your desktop, you should see a display properties pop up.

Click on settings. ramp it up to, well at least 1280 horizontal or to the maximum your display card allows...as well as setting at least 24 bit colour.

[robin]

Ive seen that carbon star many times Peter, its one of my fave objects. Beautiful image, countless stars.

[leon]

Peter, I am using a LCD screen display screen and it is set on 1400 x 900 resolution and is running at 32 bit colour, maybe mine is a little high.

Leon

[Peter Ward]

If that's your native screen res, it has me tossed then. I'm running 1920 x 1200, 32 bit & looks O.K. here.

[Ric]

A lovely image Peter, the colours stand out beautifully.

Cheers

[leon]

Peter, don't get me wrong here, I have just had another good look at your image, and I'm not having a shot at your image, I'm sure you are more experience than me, however the way it appears on my screen is very over exposed, visually, and heaps of noise.

Like I said earlier it may be my monitor, it is only new, and it is suggested that I run it at the set resolution of 1400 x 900 etc.

I have been caught out before with making my images way to dark, and because I'm probably not very experienced in the way I look at star images I see others that are very light and think it is noise that I am looking at, where in fact all that stuff has to be there.

So, all in all your image is probably supposed to look the way it dose, and I have to get some more time under my belt and do some experimenting, with the processing side of things.

Cheers Leon :thumbsup:

[Peter Ward]

Hello Leon,

Try this link. http://www.atscope.com.au/BRO/gallery1.html

I've placed the image on a web page with a gray scale. Black should be black, whites white.



Just as an afterthought....it's quite a deep image & they are thousands of stars in the background....you are not confusing them with noise are you?

[leon]

Peter, having another look, and also at your scale that you offered, i feel a little silly to have questioned your image. :whistle:

Comparing the scale, and the image, yep, it is pretty right, and I would expect that from you, but i needed to ask.

Leon :thumbsup: