View Full Version : Omega Centauri STL-11000M
Phil.H
April 8th, 2007, 12:13 PM
Taken last night STL-11000M NP101mm with a 2x powermate.
2x2bin
Phil
wakaleo
April 8th, 2007, 12:46 PM
That's a very nicely resolved image Phil. Well done.
Radar
April 8th, 2007, 01:04 PM
Stunning Phil! What does 2x2 bin mean? I know very little about CCD stuff.
Phil.H
April 8th, 2007, 04:21 PM
Thanks guys Radar 2x2bin is when you bin the pixel on your camera. My camera has 9x9mirco pixels when bin they are 18x18 this gives me 3.4 arcesec/pix. Also i get better sensitivity at this longer focal length when shoting threw the 2x powermate.
Phil
Draig
April 8th, 2007, 04:33 PM
Hi Phil,
What a great shot. :welldone: .
But I am afraid you lost me with your explaination of 2x2 bin :duh: .
Just goes to show how much I have to learn about this astrophotography business. And I haven't even got a camera yet.
Cheers Colin
AstroTasmania
April 9th, 2007, 05:22 AM
Hi Phil,
Very nice image of our best globular cluster, it just shows what using top equipment can achieve, question: what mount are you using and what exposure?
Just curious about the faint twin little wrinkle lines around the stars? What causes that effect?
Hope we get some decent skies this winter, last year was a total waste for me.
Clear skies...
Phil.H
April 9th, 2007, 05:32 AM
The exp. was only 2mins each channel LRGB the mount G11 and the stars i don't no what you are talking about all i can say the compression has stuff it up a bit to get a size photo i can show you guys.
Phil
AstroTasmania
April 9th, 2007, 05:57 AM
Hi Phil,
Thanks for the info. Yes, it could well be jpeg compression artifact, you are having to reduce it from a pretty big image size. Only seen when looking very close-up.
Thanks for sharing,
Clear skies...
Phil.H
April 9th, 2007, 02:55 PM
The Tiff ver. of this photo is 60meg 4008x2672 pixels now thats big. Justs shows how much i have to crop compress to get then on the web.
Phil
wakaleo
April 9th, 2007, 04:12 PM
Like Colin, I'm totally lost with your explanation of 2x2 bin (and also realising how much I have to learn). Am I right in thinking it's some sort of artificial amplification or magnification?
Mick
April 9th, 2007, 04:51 PM
Very nice image Phil, have you imaged 47 tuc? Would be interested to see both on that scale with your equipment.
Phil.H
April 10th, 2007, 02:53 PM
not at that scale i will shot it but.
Phil
Noel Carboni
April 11th, 2007, 09:15 PM
Wow, that's beautiful! REALLY nice job!
We can *just* see this cluster from Florida, though it's low to the horizon. Personally I've never been at the right place at the right time (of day and year) to see it in person, but a friend of mine in Florida named Joe Mize has also done a nice image of Omega Centauri with his STL-11000.
-Noel