Omega Centauri, old object, new data...

Post by **rcj** » Wed Mar 28, 2007 5:07 pm

Hi all,

Here is an old favourite, revisited with new data. Some of it was derived from Mersing, and the rest are from Eunos, all taken with the Pentax 75mm refractor.

Post by **Airconvent** » Wed Mar 28, 2007 11:34 pm

wow..just like what we would see on the 12.5" Portaball in Mersing!

Thanks for sharing.

chrisyeo · Post by **chrisyeo** » Thu Mar 29, 2007 1:50 am

Airconvent wrote:wow..just like what we would see on the 12.5" Portaball in Mersing!
Thanks for sharing.

Without the colour!

I believe the blue stars represent the population of young stars while the orange stars are the older population. There is one particularly red one in the top left that stands out.

Stunning, Remus. !

starfinder · Post by **starfinder** » Thu Mar 29, 2007 7:14 am

chrisyeo wrote:
Without the colour!

I believe the blue stars represent the population of young stars while the orange stars are the older population. There is one particularly red one in the top left that stands out.

Excellent shot, uncle R., as usual!

Hmmmm.... I wonder, could we see colour in Omega through a very large aperture scope. e.g. 20" or larger. I have read accounts of seeing colour in the Orion Nebula with large apertures.

cataclysm · Post by **cataclysm** » Thu Mar 29, 2007 9:08 am

Hmmmm.... I wonder, could we see colour in Omega through a very large aperture scope. e.g. 20" or larger. I have read accounts of seeing colour in the Orion Nebula with large apertures.

Replace our eyes with cat eyes and we can all do away with ccd cameras.
hee.. just kidding...

Robin Lee · Post by **Robin Lee** » Tue Apr 03, 2007 9:21 pm

From what I read from CloudyNight, we can't see the colour of faint object even though the aperture keeps on increasing. Like Great Orion Nebula, we can see green tinted colour at medium aperture (I just have experience with 8"). If we get a much bigger telescope, let's say 20" Dob, we can't see any improvement over the 8" and the brightness of the objects seems still.

What can we do is to modify our brain (just like flash a new firmware) to allow longer exposure.