Re: Coloured objects list?
- From: "atasselli@xxxxxxxxxxx" <atasselli@xxxxxxxxxxx>
- Date: 30 Jun 2006 12:26:20 -0700
Brian Tung wrote:
jtaylor wrote:....
Is there an ordered list of objects that show colour, such that depending on
the size & quality of telescope you could find the ones that would show
particular colours, or particularly strong colour?
To the eye, not to a camera...would like to be able to show newbies
(including yours truly) pretty coloured jewels in the sky.
By and large, that's going to be stars and planetary nebulae; the only
diffuse nebula I've ever seen color in was the Orion Nebula, and that
in a large-ish scope (certainly not in the C5+).
For planetary nebulae, simply pick bright ones. They will basically
show a bluish-green color (at least, they do to me), so it's not as
though there's great variability there. Using a nebula filter like the
Orion Ultrablock will make them stand out more, but since it's a
narrowband filter, some people might consider that "cheating." :)
Objects to try are M27 (Dumbbell), M57 (Ring), NGC 2392 (Eskimo),
NGC 7662 (Snowball). NGC 2392 might be lost in the glare of the Sun,
though. Does anyone else have any planetary nebula suggestions?
In reality I've never ever seen color in M57/27, maybe a shade of green
with a 10" in excellent skies in the latter.
Objects of which I've seen colour (other than some of those listed
above) with scopes from 6" to 10" are:
NGC6905, NGC6543 (Cat's eye), Campbell Hydrogen Star aka PK64+5.1 (the
only planetary I know that shows a pinkish tint), NGC6826 (Blinking
Planetary), NGC7026, NGC7027, IC4593, NGC6210, M8, NGC3242 (Ghost of
Jupiter), NGC6308 (Box Nebula) and the Saturn Nebula (of which I forgot
the NGC number). Probably there are few more that would show colour in
larger scopes.
Andrea T.
.
- References:
- Coloured objects list?
- From: jtaylor
- Re: Coloured objects list?
- From: Brian Tung
- Coloured objects list?
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