Following from Paul Haese's recent fabulous image of this object that he aptly named the Wolf Nebula. I thought I would have a go at this on the weekend.
Its only available for about 2.5 hours a night at the moment as its past its prime time to image it but it still turned out not too bad.
Using the fabulous little TEC110 fluorite and a Vixen VMC 95 guide scope and SBIG STi guider on a PMX mount. At my dark site observatory.
Very cool! is that the table of Scorpius to the Left?
Thanks for that. I am not sure.
Quote:
Originally Posted by Larryp
Lovely image, Greg!
Cheers Larry.
Quote:
Originally Posted by RobF
Really enjoyed that thanks Greg
Thanks Rob. Its an interesting area and especially nice in Ha.
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Originally Posted by RickS
Nice image, Greg, especially for a quickie!
Yes its quite short exposure for my normal images these days but its lowish in the sky now and a few semi cloudy nights made it hard to get a lot. F5.6 helps.
Looks like it is the H-alpha shell associated with the NGC6231 + Scorpius OB1 complex, that remarkable concentration of superluminous OB stars that we were discussing as being the hypothetical source of energy for the giant dust chimney in your MW image that stretched far above the galactic plane.
If I remember right, it is called Gum 55 and also RCW 113, but I don't really know if Gum and Rodgers+ Campbell+Whiteoak had the same outline for the object.
The combination of depth and high resolution in good amateur nebular imaging is surely competitive with the images in the H-alpha surveys done by professional astronomers. I discussed this fact once with the Sidonio, when it seemed that he had picked up vast areas of diffuse H-alpha that was not even associated with any particular object. (about 50 percent of the H-alpha emission from some galaxies is simply extremely-faint diffuse emission)
Sorry to say that I don't see any celestial canids here....but then again I have absolutely no imagination, and I never see animals or people in the sky!! (the best I can manage is to see squares and triangles.....)
I have a really nice scientific overview of this entire region (cluster+ OB association + nebula), but as is usual with scientific papers, the file size limit stops me from attaching it.
I can hear it howling. An old favourite. Great colours.
Its a first for me imaging this area. There is a lot going on in it.
Quote:
Originally Posted by madbadgalaxyman
Greg,
Looks like it is the H-alpha shell associated with the NGC6231 + Scorpius OB1 complex, that remarkable concentration of superluminous OB stars that we were discussing as being the hypothetical source of energy for the giant dust chimney in your MW image that stretched far above the galactic plane.
If I remember right, it is called Gum 55 and also RCW 113, but I don't really know if Gum and Rodgers+ Campbell+Whiteoak had the same outline for the object.
The combination of depth and high resolution in good amateur nebular imaging is surely competitive with the images in the H-alpha surveys done by professional astronomers. I discussed this fact once with the Sidonio, when it seemed that he had picked up vast areas of diffuse H-alpha that was not even associated with any particular object. (about 50 percent of the H-alpha emission from some galaxies is simply extremely-faint diffuse emission)
Sorry to say that I don't see any celestial canids here....but then again I have absolutely no imagination, and I never see animals or people in the sky!! (the best I can manage is to see squares and triangles.....)
I have a really nice scientific overview of this entire region (cluster+ OB association + nebula), but as is usual with scientific papers, the file size limit stops me from attaching it.
cheers,
Robert
Cheers Robert. As usual etremely informative. Its good to have someone with such extensive knowledge of astronomy posting on this site.
Cheers Robert. As usual etremely informative. Its good to have someone with such extensive knowledge of astronomy posting on this site.
Greg.
Hi Greg,
I guess it is a matter of what one spends ones time with and what one focuses on in life; If the focus is on astro-imaging, then people can get very good at it, like you. For my own part, I wondered why some of the planetary Amateur Astronomers were virtually professional astronomers and why amateur astronomers seemed traditionally to know so little about galaxies....so I developed the curiosity and interest to become at least a mini Galaxies Expert.
I have probably spent less of my time and energy than average on distracting non-astronomical activities...... such as aspiring after the girl next door!!(this sort of thing tends to detract from ones scientific work.....).
On the other hand, I would have achieved a lot more in astronomy if my focus had been single-mindedly on astronomy, as I am often distracted with other sciences, in particular biology and palaeontology.
Incidentally, RCW 113 has had very little individual study by professional astronomers; its cause and origin and future evolution are currently unknown. I did a search for all papers that mention this object, since 1980, and there were only three or four that at least gave a little bit of detail about it.
cheers, Robert
"The astronomer should live in monkish tranquillity, undisturbed by worldly concerns."
- R.L.
Last edited by madbadgalaxyman; 03-10-2013 at 06:00 AM.
Thanks for that. Yes very interesting. I saw that area of nebulosity when doing my larger Milky Way image. There's a nice piece of bright nebulosity to the right of the star cluster.
Quote:
Originally Posted by madbadgalaxyman
Hi Greg,
I guess it is a matter of what one spends ones time with and what one focuses on in life; If the focus is on astro-imaging, then people can get very good at it, like you. For my own part, I wondered why some of the planetary Amateur Astronomers were virtually professional astronomers and why amateur astronomers seemed traditionally to know so little about galaxies....so I developed the curiosity and interest to become at least a mini Galaxies Expert.
I have probably spent less of my time and energy than average on distracting non-astronomical activities...... such as aspiring after the girl next door!!(this sort of thing tends to detract from ones scientific work.....).
On the other hand, I would have achieved a lot more in astronomy if my focus had been single-mindedly on astronomy, as I am often distracted with other sciences, in particular biology and palaeontology.
Incidentally, RCW 113 has had very little individual study by professional astronomers; its cause and origin and future evolution are currently unknown. I did a search for all papers that mention this object, since 1980, and there were only three or four that at least gave a little bit of detail about it.
cheers, Robert
"The astronomer should live in monkish tranquillity, undisturbed by worldly concerns."
- R.L.
We are lucky to have you posting your expertise here.
... I'm slowly starting to regain my appreciation for deep space photo's ....
An old favourite. Great colours. 
