Thanks guys for responding.
Quote:
Originally Posted by PeterM
.....
My notes on this object in Centaurus are from the ESO book Exploring The Southern Skies noting that a nearby supernova blast may have hit the cloud and formed the tail. It forms the head of a Cometary Globule CG12 and is app 2000 lyrs distant. In the book plate 147 has a pic of this fine object. In Hartungs revised edition it is listed as object 624.....
|
Ah that is the detail I was looking for. The web does not have this info but I had read some where similar information. Thanks Peter for the information.
Quote:
Originally Posted by gregbradley
....More time may add a bit of blue to the reflection area but some areas just seem to have a preponderance of yellowish stars.
Greg.
|
Yes that is true, perhaps I struck one.
Quote:
Originally Posted by strongmanmike
...nice to see you over-analyse your own images too  (just joking 
) ......besides without robotic automated sequences really loooong exposures are a bit of a challenge....try doing them without an observatory 
It's a lovely image...juuuust begging for a wider field  .... 
Mike |
Would you expect me not to Mike?
I view my images with the same eyes that I view anyones. No rose coloured glasses here. (oops pun)
Not having an observatory or permanent pier is a real drag and that I can appreciate. We have discussed putting in more piers down the house for the guys that come down and don't want to setup each time. So I know how you feel.
Yes wider field but maybe with a 300mm f2.8 lens that is really renticular. Not buying anymore big scopes. Well not in the near future.
Quote:
Originally Posted by SkyViking
That's a spectacular image, I really like it. And what a great target.
I agree the star colours are somewhat muted though, but you seem to have good colour in the dust itself. I wonder how does your RGB layer look on its own, is it also lacking in star colour?
|
Thanks Rolf. I think is is a great target too. From the moment I saw it I wanted to image it. I did a run a month or so ago but did not like the composition. Due to the accurate pointing I have with the mount it put the cometary cloud right in the center of the frame. That means that I missed nearly half of the tail. On this session I simply pointed to a star further across and got it all in.
The RGB layer is the same. It is so faint that is hardly shows up in RGB at all even with quite a lot of stretching. Maybe I will just add another session to it and see what transpires. like Greg pointed out it might just be a yellow patch of stars.
...nice to see you over-analyse your own images too 
...besides without robotic automated sequences really loooong exposures are a bit of a challenge....try doing them without an observatory 
