Colourful Tucan

[Peter Ward]

Not much to say really.

Big bright glob.

Southerly Dec.

Not great seeing or a lot of exposure (LRGB 20:20:10:15 mins)

But problably my favorite glob...(seen here in technicolor)

http://www.atscope.com.au/BRO/gallery15.html

[Hagar (Doug)]

Hi Peter, you just have to love the detail in the core. What scope was used for this southern gem?
Very nice.

[telemarker (Keith)]

Great image, beautifully coloured and the core is well resolved. I like it!!

[leon]

Yea, I like it too, the stars in there are just incredible, beautiful image Peter

Leon

[Peter Ward]

Thanks Leon, Keith, Doug!

To be frank it was a pretty lazy effort with the RCOS 14....then again significantly longer exposures probably would have led to purely white stars.

Swings and round-abouts

[DavidU (Dave)]

Love the colors Peter ! I agree with you, much nicer with the 20:20:10:15
Beaut scope !

[troypiggo (Troy)]

Can I ask some newbie questions? How come the R, G, and B are different length exposures? Shouldn't they be the same, unless you're after some false colour or something?

[Alchemy (Clive)]

nicely resolved to the core.

[multiweb (Marc)]

Nice colors and resolution.

[Peter Ward]

Originally Posted by troypiggo

Can I ask some newbie questions? How come the R, G, and B are different length exposures? Shouldn't they be the same, unless you're after some false colour or something?

The QE of (most) CCD cameras varies with the wavelength being captured. The camera I use is most sensitive in green, and less so in Red & Blue. Varying exposures helps to "even up the curve" and infact gives a much closer approximation to "true" colour than a straight 1:1:1 exposure ratio.

[troypiggo (Troy)]

Interesting. Thanks for the explanation.

[Martin Pugh]

That particular globular cluster burns out in just a few seconds exposure, so you've done a great job resolving that core.

nice work Peter

Martin

[sjastro]

Peter,

I'm probably out on a limb here, but images of 47 Tucanae resolved to the core reduce this splendid globular to a run of the mill object.

Visually 47 Tucanae has a striking central condensation.

Astronomers classify globulars according to the degree of central condensation, astroimaging has essentially broken down this distinction.

It is still a fine image however.

Regards

Steven

[Peter Ward]

Originally Posted by sjastro

Peter,

I'm probably out on a limb here, but images of 47 Tucanae resolved to the core reduce this splendid globular to a run of the mill object.

Visually 47 Tucanae has a striking central condensation.

I must admit Steve, there was something about the dynamic of the image I didn't quite like, hence appreciate your input. I reprocessed the data making the core look a little hotter (though still resolved ) and suspect it is an improvement....

[astroron (Ron)]

Originally Posted by sjastro

Peter,

I'm probably out on a limb here, but images of 47 Tucanae resolved to the core reduce this splendid globular to a run of the mill object.

Visually 47 Tucanae has a striking central condensation.

Astronomers classify globulars according to the degree of central condensation, astroimaging has essentially broken down this distinction.

It is still a fine image however.

Regards

Steven

I disagree, I am not an imager, but I think in this in this day and age any globular cluster with a burnt out core stinks
If I can resolve the core with my telescope then with modern imageing equipment it should be resolved
I will not even bother looking too much at an image of a globular cluster with the guts burnt out
47 Tuc has a very interesting core and would be nice if it could be shown in good quality images

[marc4darkskies (Marcus)]

Lovely image Peter (of course). Love the star colours - better than my version. But IMHO the short exposure doesn't convey the extent of the envelope of stars in this huge glob (cf my deeper version - layered with shorter exp to save the core).

Cheers, Marcus