ICEINSPACE
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Moon Phase
CURRENT MOON
Waxing Gibbous 92.7%
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11-02-2016, 07:58 PM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,692
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Quote:
Originally Posted by Regulus
Have never seen this before in a photograph. It's an excellent little nebula and beautifully presented.
Very nicely done Mike.
Trev
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I am surprised it took so long for me to finally image it but I guess I didn't have a good enough image scale to hit it with properly until late 2013 
Quote:
Originally Posted by Bassnut
Excellent Mike!. Different. Diffraction spikes are a bit intrusive, small niggle, presentation is spot on.
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Cheers Fred glad you liked it  I guess the diff spikes are unavoidable due to the optical design of my scope (it ain't no refractor dude) and the brightness of the central star 
Mike
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11-02-2016, 10:17 PM
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Registered User
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Join Date: Nov 2011
Location: Sydney
Posts: 1,459
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with Fred on this apart from the diffraction spikes..interesting and unusual object, nicely done. I recognise that spider given its recently taken residence in the RC8..
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12-02-2016, 10:12 AM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
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Quote:
Originally Posted by DJT
with Fred on this apart from the diffraction spikes..interesting and unusual object, nicely done. I recognise that spider given its recently taken residence in the RC8..
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Cheers Dave I check inside my OTA for fine diffraction inducing webs every night with a bright torch...the little spiders are the worst, they can be rather clandestine at times
Mike
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12-02-2016, 08:53 PM
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Registered User
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Join Date: Feb 2006
Location: Sydney
Posts: 18,185
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Nice little yug there Mike.
Yes those little spiders are the worst. I stopped taking the cooling plates off the Honders as it was too inviting for those floating in air on a thin streamer of web spiders.
Greg.
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12-02-2016, 10:39 PM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,692
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Quote:
Originally Posted by gregbradley
Nice little yug there Mike.
Yes those little spiders are the worst. I stopped taking the cooling plates off the Honders as it was too inviting for those floating in air on a thin streamer of web spiders.
Greg.
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Cheers Greggles
So, what is happening with that Honders of yours anyway...?  you just teasing us huh? Making us wait huh? 
Mike
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14-02-2016, 10:51 AM
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JHT
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Join Date: Jun 2007
Location: Penwortham
Posts: 3,039
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Great image Mike!
HD 65750 or V341 Car really gives the Toby jug a unique colour, amazing resolution! for the seeing conditions.
Cheers,
Justin.
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14-02-2016, 10:37 PM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,692
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Quote:
Originally Posted by tilbrook@rbe.ne
Great image Mike!
HD 65750 or V341 Car really gives the Toby jug a unique colour, amazing resolution! for the seeing conditions.
Cheers,
Justin.
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Cheers Justin, yes the golden hue is very attractive huh? Thank god for deconvolution is all I can say...one day it would be good to have a scope under sub arc sec seeing...just for a laugh...I can only imagine 
Mike
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19-02-2016, 07:49 PM
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Join Date: Apr 2010
Location: ardrossan south australia
Posts: 4,918
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Thank god for deconvolution is all I can say......eh...what was that??
otherwise that is another beautiful image - relaxing to look at and technically excellent.
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19-02-2016, 08:20 PM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,692
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Quote:
Originally Posted by Shiraz
Thank god for deconvolution is all I can say......eh...what was that??
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Yes well... when done properly, arhem.....it is a very powerful tool 
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otherwise that is another beautiful image - relaxing to look at and technically excellent.
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Well thank you squire, from one of the masters of excellence... I'll take that 
Mike
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20-02-2016, 09:02 AM
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Join Date: Apr 2010
Location: ardrossan south australia
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been looking at this a bit more. It looks to me like there is a classic dual lobe PN buried in there - what do you think?. That possibility is raised in http://adsabs.harvard.edu/full/1973A%26A....23..241D. but your image is the best available at showing the outer lobes - in fact most analyses (and images) ignore the outer region entirely.
Not sure what the colour means - have you seen any other PNs with a gold colouring? The literature identifies this as a reflection nebula, so I guess there is a lot of dust around and that could modify the light that gets out from any PN structure. In any event, I think that your image shows a lobe structure of some sort, that is not so clear in other images.
Last edited by Shiraz; 20-02-2016 at 11:58 AM.
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20-02-2016, 11:47 PM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,692
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Quote:
Originally Posted by Shiraz
been looking at this a bit more. It looks to me like there is a classic dual lobe PN buried in there - what do you think?. That possibility is raised in http://adsabs.harvard.edu/full/1973A%26A....23..241D. but your image is the best available at showing the outer lobes - in fact most analyses (and images) ignore the outer region entirely.
Not sure what the colour means - have you seen any other PNs with a gold colouring? The literature identifies this as a reflection nebula, so I guess there is a lot of dust around and that could modify the light that gets out from any PN structure. In any event, I think that your image shows a lobe structure of some sort, that is not so clear in other images. |
Hi Ray
I think this is a special type of planetary nebula and perhaps not a typical one? Most sources refer to the "dust" around the star having been ejected from the star itself and the stars yellow-red light then "reflects" off this rather than the more typical blue nebula caused by Rayleigh "scattering" of blue light.
From ESO:
"The nebula was created by the star, which is losing part of its mass out into the surrounding space, forming a cloud of gas and dust as the material cools. The dust consists of elements such as carbon and simple, heat-resistant compounds such as titanium dioxide and calcium oxide (lime). In this case, detailed studies of the object in infrared light point to silicon dioxide (silica) being the most likely compound reflecting the star’s light.
IC 2220 is visible as the star’s light is reflected off the grains of dust"
Mike
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21-02-2016, 12:14 AM
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Registered User
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Join Date: Mar 2012
Location: Mornington Peninsula, Australia
Posts: 3,998
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Quote:
Originally Posted by Shiraz
been looking at this a bit more. It looks to me like there is a classic dual lobe PN buried in there - what do you think?. That possibility is raised in http://adsabs.harvard.edu/full/1973A%26A....23..241D. but your image is the best available at showing the outer lobes - in fact most analyses (and images) ignore the outer region entirely.
Not sure what the colour means - have you seen any other PNs with a gold colouring? The literature identifies this as a reflection nebula, so I guess there is a lot of dust around and that could modify the light that gets out from any PN structure. In any event, I think that your image shows a lobe structure of some sort, that is not so clear in other images. |
i see what Ray means esp with the shape!
seeing its so unique could be worth more scrutiny .. as i said you captured some great extensions - we'll see i guess!
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21-02-2016, 11:20 AM
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PI rules
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Join Date: Jul 2006
Location: Sydney
Posts: 2,631
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Nice one Mike. I like the way you've tamed the central star--I've always had trouble with it.
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22-02-2016, 04:30 PM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,692
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Quote:
Originally Posted by Geoff45
Nice one Mike. I like the way you've tamed the central star--I've always had trouble with it.
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Cheers Geoff Have you imaged it yourself? I went looking on your AstroBin site but couldn't find it, did you do it in the dark old days of the little refractor straw 
Mike
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22-02-2016, 05:54 PM
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PI rules
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Join Date: Jul 2006
Location: Sydney
Posts: 2,631
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Quote:
Originally Posted by strongmanmike
Cheers Geoff Have you imaged it yourself? I went looking on your AstroBin site but couldn't find it, did you do it in the dark old days of the little refractor straw
Mike |
http://www.astrobin.com/77901/
I should probably reprocess it. Sure I could do a better job now.
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22-02-2016, 09:23 PM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,692
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Quote:
Originally Posted by Geoff45
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Ah right..how'd I miss that  ...your central star there looks ok to me and we came up with very similar colours
Mike
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23-02-2016, 09:07 PM
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PI rules
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Join Date: Jul 2006
Location: Sydney
Posts: 2,631
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Quote:
Originally Posted by strongmanmike
Ah right..how'd I miss that ...
Mike |
Because as you scroll down, more stuff shows up. If you don't scroll you only see the first group of images.
Geoff
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02-04-2016, 12:12 PM
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Registered User
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Join Date: Apr 2007
Location: Cherrybrook, NSW
Posts: 5,013
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Hello Mike,
What a beautiful photo!
I haven't been on IIS for a while. So good to see the quality of photos is better than ever.
Such an unusual object. A new one to me.
So sharp and I love the colour.
Ross.
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03-04-2016, 05:39 PM
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Registered User
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Join Date: Mar 2016
Location: Upper Austria
Posts: 60
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Hello Michael,
really nice - there aren't many yellow reflection nebula, and I think this one is the most beautiful one.
Markus
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03-04-2016, 08:28 PM
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Registered User
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Join Date: Sep 2014
Location: North Queensland
Posts: 3,240
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I was not aware of this nebula - thank you Mike for bringing it to our attention. Really really nice image, as always
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