The Jewel Box

cwjames · #1 16-03-2008, 07:00 PM

Hi All,

I took a image of the Jewel Box last Friday night on the way to another target.

Can't put my finger on what's wrong but I get the feeling someting is wrong with this image, not sure if its focus or something else.

Do any of you have a image of The Jewel Box in which I can compare what this target should look like.

http://www.cwjames.info/astro/galler...er-003-thm.jpg

Image can be viewed at the url below.

http://www.cwjames.info/astro/galler...luster-003.php

Thanks

Chris

sheeny (Al) · #2 16-03-2008, 07:09 PM

My first impression is the focus is off. Nice colours though.

Al.

Peter Ward · #3 16-03-2008, 07:18 PM

The one thing any astro-imager can get right is focus.

If I had 3 rules it would be Focus, focus and did I mention focus?

Unfortunately it's not right here, more the pity as the rest looks good.

Stick with it!

Peter

leon · #4 16-03-2008, 07:24 PM

Chris, yep mate it is focus, other than that it is a top effort.

Leon

dcalleja · #5 16-03-2008, 07:45 PM

Agreed - looks like focus. Colours are great though

beren · #6 16-03-2008, 08:35 PM

looks like the focus is just off but very nice work, the guiding and colours look spot on......nice website too

cwjames · #7 16-03-2008, 11:44 PM

Hi All,

Thanks for the comets, yes I think I was not focused.

Do you know a link to a image of The Jewel Box, I am keen to see what it should look like.

Thanks
Chris

cwjames · #8 17-03-2008, 12:12 AM

Hi All,

I found a image of The Jewel Box, in focus, at the url below.

http://www.astrosurf.com/antilhue/ngc_4755.htm

I am happy I had the right object, just a pitty I did not have the camera focused correctly.

Thanks
Chris

cwjames · #9 17-03-2008, 12:35 AM

Just added some sharpenning to the image, not sure if it helps or if it too far out to fix...

http://www.cwjames.info/astro/galler...luster-003.php

Chris

erick (Eric) · #10 17-03-2008, 12:43 AM

Quote:

Originally Posted by cwjames

I am happy I had the right object, just a pitty I did not have the camera focused correctly.

Thanks
Chris

Definitely the Jewel Box, Chris, you have the right target. I love this cluster.

Even the image you located doesn't look as sharp as I'm fairly certain I have observed it?

One thing to say about out of focus images - they can show the colour of the stars better