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davidpretorius
22-12-2005, 08:41 AM
Very pleased with the colour in this one, i have observed many times, but never imaged and have never seen the colour difference visually!

Mag is around 1000x, 70 frames out of 500.

Another for you vingo!
atalas
22-12-2005, 08:58 AM
Nice Davo , must say I don't think Iv'e noticed a blue colour visually either ! they always look whitish/yellow to me.
ving
22-12-2005, 09:03 AM
theyre a funny old thing the eyes. when I observe this I see the big star as whitish/blue and the small as a blue....

its interesting to see that the webcam picks out completely diferent colours :)
thnx dave :)
asimov
22-12-2005, 05:56 PM
Nice work Dave.
Starkler
22-12-2005, 06:59 PM
For a weird colour trip Antares is good. The companion looks like a weird bluish green to the eye only because of its proximity to the bright red one.
avandonk
22-12-2005, 08:34 PM
Night vision is colourless (rods). Day vision has colour (cones). When we humans design a camera we make so it represents the world as we see it.The only reason we see colour in astro images because of the time integration and the 'false' colour we impose on the resultant integrated images. We can make it look however we like. The trick is to make it look how we would percieve it if it was bright enough.

Colour does not exist per sey by the way. It is a result of the ratio of the three receptors (cones) intensities as interpreted by a very large brain. A wavelength of light does not have any inherent 'colour'. It is the percieved ratios between the three receptors that give rise to this sensation.

I can go on but it is a well understood phenonema.

Bert
ballaratdragons
22-12-2005, 08:45 PM
Cool Davo.

I found a magic double 2 nights ago and wanted to image it but I couldn't find it again!
It was just above Orion Neb somewhere!

Oh well, I'll find it again.
Miaplacidus
22-12-2005, 08:59 PM
Beautiful, David. (How long before you're time-lapse videoing variables??!!)

Keep up the good work,

Brian.
Rodstar
22-12-2005, 09:53 PM
Great double! Have you read the double stars in Orion article by Richard Jawoski (spelling?) in the Nov/Dec edition of S&S? A great read, and will form the basis of one of my observing sessions over the Xmas break.