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Old 08-06-2010, 09:42 AM
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SkyViking (Rolf)
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Join Date: Aug 2009
Location: Waitakere Ranges, New Zealand
Posts: 2,260
Quote:
Originally Posted by Rob_K View Post
Rolf, I often experience the same thing with Starry Night - it's not in error, but limited by the catalogues it uses. For faint objects that I might be chasing, I use SN to narrow it down, but generate Deep Sky Survey views to confirm (usually in Aladin).

Nice shot anyway Rolf, Dennis too!

Cheers -
Thanks Rob, yes I use DDS myself when hunting really faint stuff like quasars. I thought a magnitude 13-14 object like Pluto was 'safe' to use Starry Night for, but apparently not so. I will definitely use DDS more in the future then.

Quote:
Originally Posted by Dennis View Post
Hi Rolf

No apologies required, I know how easy it is to mistakenly identify such faint objects - I’ve done this myself. Image how difficult it would have been for Clyde Tombaugh if Pluto had been is Sagittarius back in 1930 (I think it was in Gemini) when he discovered it.
Oh yes, at least we enjoy the luxury of knowing that Pluto actually exists! We pretty much just have to point and shoot
And thanks for your planetarium software recommendations.

Quote:
Originally Posted by kinetic View Post
Rolf,

it seems you have the colour thing sorted too if this animation
is a guide.
If Dennis' LRGB is anything to go by most stars don't seem to change
colour, at least to my eyes. Halos ok too.
Your 10" optics must be almost free of chromatic aberration!

I remember having RGB sliders set to something like 26,32,40 in my
webcams (values 0-63 range) to account for the poor blue
sensitivity. This gave me a good approximation of white light on
Deep sky as well as Mars etc.
I must check this, it's written on the dome wall in texta

Steve
Thanks Steve, yes I have set the RGB values manually too I remember - some 4 years ago probably. That must be why I get the colours reasonably right. I completely forgot about that
Great animation too, it really moves a lot in just 2 days doesn't it.
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