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View Full Version : The Pearl Cluster (Feb entry)



trevorw
February 13th, 2010, 08:44 AM
Target: NGC 3766 The Pearl Cluster

Camera: Canon 350d modified, CLS clip filter
Exposure Capture: DLSR Focus,
Scope: GSO CF RC200
EFR: f/8
Mount: EQ6 Pro
Exposure Setting: Prime focus, @ ISO800 ICNR off Custom WB
Exposures: 8 @ 360s lights taken between 8:00 and 12:00pm total 48min 12/02/2010
Seeing: no moon, slight wind,
Guiding: Orion Starshoot Autoguider using PHD with ED80
Focus: DSLR Focus Bahitov mask
Stacking: DSS 5 darks no flats
Processing: PS CS3,

Open Cluster NGC 3766 (= Lacaille III.7 = Dunlop 289 = Melotte 107 = Collinder 248), type 'g', in Centaurus

ight Ascension 11 : 36.1 (h:m)
Declination -61 : 37 (deg:m)
Distance 5.5 (kly)
Visual Brightness 5.3 (mag)
Apparent Dimension 12 (arc min)
Discovered by Lacaille in 1752.
The considerable southern open cluster NGC 3766 was discovered by Abbe Lacaille on March 5, 1752 from South Africa.
The red nebulosity you can see starting to appear on the right of NGC 3766 is from the nearby emission nebula Lambda Centauri.
NGC 3766 is a very dense open cluster and shimmers like a Pearl which is how it got it's nickname, "The Pearl Cluster."
This is a good binocular target but can also be glimpsed with the naked eye from dark skies.

dsoman
February 13th, 2010, 11:29 AM
Wow! That is very nice! I have always liked open clusters, like diamonds.

Brent

poppasmurf
February 16th, 2010, 05:11 PM
Gorgeous pic Trev. This is a target I have never seen before, thanks for sharing and good luck for POM. I also particularly like the attension to detail by providing all the details of your targets.
Regards poppasmurf AKA Shane

trevorw
February 17th, 2010, 01:20 PM
Thanks guys

I like providing the detail to me it's not just about the image,

I'd like to know how to capture my processing detail history in PS, clues anyone

Thanks

poppasmurf
February 17th, 2010, 03:50 PM
Sorry mate . I don't know PS well enough, no clues here.

trevorw
February 17th, 2010, 06:43 PM
Okay figured it out :biggrin:

Radar
February 18th, 2010, 11:16 PM
You can just goto the history panel on the right hand side and record it from there I think Trev.

Ray

trevorw
February 27th, 2010, 06:11 PM
Thanks Ray and here is the final version

Cheers

Radar
February 28th, 2010, 06:47 PM
Those four red giants really give that cluster an awesome appearance. The big stars are on the edges, and smaller stars toward the centre give it 3d depth which is hard with astro images.

Ray

Kokatha man
March 13th, 2010, 12:51 AM
Sorry coming in late on this one.....that second image came up vey nicely indeed, I'm a bit of a sucker for some of these open clusters!:thumbsupmate: