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  #1  
Old 01-04-2012, 01:30 AM
RichardJ (Richard)
Psalm 19: 1 - 4

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Homunculus Nebula

Hi,

After imaging Saturn and its moons this evening I thought I would have a go at the Homunculus. I've only tried it once before with a modified webcam. It is a challenging object. I'm sure others can do better.

Thanks for looking.

RichardJ
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Click for full-size image (Homunculus 5.jpg)
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Click for full-size image (Homunculus Text.jpg)
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Last edited by RichardJ; 04-04-2012 at 07:29 AM. Reason: Further image provided
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  #2  
Old 01-04-2012, 02:10 AM
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ballaratdragons (Ken)
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Fantastic result Richard!!!

It's very hard to image, but you've done well.
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  #3  
Old 01-04-2012, 02:32 AM
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jjjnettie (Jeanette)
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well done. It's on my to do list. Thanks for sharing.
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  #4  
Old 01-04-2012, 06:12 AM
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prokyon (Werner Probst)
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Great effort! This object is so difficult to capture.
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  #5  
Old 01-04-2012, 07:11 AM
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Yes that is very very good. It is super hard to capture.

I captured it myself last imaging and it took 1 second exposures in Ha to catch it.

Greg.
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  #6  
Old 01-04-2012, 11:19 AM
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jsmoraes (Jorge)
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Hi, RicahrdJ. Congratulation for your capture. As I got one similar, with your permission, I am posting here.

To understand the image, I took an Hubble capture from http://pt.wikipedia.org/wiki/Ficheiro:EtaCarinae.jpg and did a saturation, blur, reduction, B/W convertion and rotation to compare them.

It was a surprise I got it. It was took with GSO 12 " - barlow GSO ED 2" 2x - extensor 35 mm - Cannon 350 D - 2 frames - DSS - 35 seconds - ISO 800 -PhotoShop - NeatImage on mar/2012

http://multiply.com/mu/jsmoraes/imag...nmid=507721284

The original photo in color:

http://multiply.com/mu/jsmoraes/imag...nmid=507721284
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  #7  
Old 01-04-2012, 12:43 PM
RichardJ (Richard)
Psalm 19: 1 - 4

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Hi Jorge,

Well done. It is a very hard object to image well.

I've done a little bit more work and have uploaded my effort. Again, thanks for looking.

regards,

RichardJ
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  #8  
Old 01-04-2012, 01:17 PM
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astronobob (Bob)
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Very interesting capture Richard and a mighty fine Job
I seen this hubble image yrs ago and wondered where, what etc as it was named just as: A Stellar BadBoy ? ? So your image really puts it in perspective, Top work ! !
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  #9  
Old 02-04-2012, 02:05 AM
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Richard, I had a go at this tonight.
It's really very hard to find the right balance with the capture.
I ended up going for 3 seconds subs @ iso400
Hope you don't mind if I share it here.
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  #10  
Old 02-04-2012, 07:09 AM
RichardJ (Richard)
Psalm 19: 1 - 4

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Hi jjjnettie,

Well done. I like the colour. Next time I'm going to try to get a shorter exposure as well as a longer exposure and combine the images to try and reduce the size of Eta and show more central nebulosity. The seeing last Saturday night was excellent. I need to wait for the best conditions for this task.

regards,

RichardJ
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Old 02-04-2012, 07:16 AM
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iceman (Mike)
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Excellent results everyone.

I think the best I remember seeing was from Rolf a little while back. I'll try and find it later.
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  #12  
Old 02-04-2012, 07:33 AM
RichardJ (Richard)
Psalm 19: 1 - 4

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Hi,

I've uploaded a further image. I'll go back to the original subframes and see if I can improve the final result.

regards,

RichardJ.
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  #13  
Old 02-04-2012, 08:36 AM
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Quote:
Originally Posted by RichardJ View Post
Hi jjjnettie,

Well done. I like the colour. Next time I'm going to try to get a shorter exposure as well as a longer exposure and combine the images to try and reduce the size of Eta and show more central nebulosity. The seeing last Saturday night was excellent. I need to wait for the best conditions for this task.

regards,

RichardJ
It seems to be Eta star, but it is the ejecta ionized clouds.

I could understand it when I took an Hubble image and processed it to be similar to what we can capture with our telescopes.

Take a look on photo that I shared here, where you can see a processed Hubble image and a similar capture that all us got. Take a look on original photo from Hubble, too.

I think that only with more ampliation you will get the separation of Eta and that cloud. On Hubble image you can see that Eta is less bright (because of the size) than that cloud. It is similar to double stars. Where Eta is the faint star.

it seems that all what we got capture is the Hubble's reddish part of nebula.

Last edited by jsmoraes; 02-04-2012 at 08:54 AM.
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  #14  
Old 02-04-2012, 08:42 AM
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iceman (Mike)
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Rolf's amazing image is here:
http://www.iceinspace.com.au/forum/s...ad.php?t=72693

It's even better than I remembered.
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  #15  
Old 02-04-2012, 08:52 AM
Ross G
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Great capture Richard.


Ross.
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  #16  
Old 02-04-2012, 09:02 PM
RichardJ (Richard)
Psalm 19: 1 - 4

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Hi,

I reprocessed by original images and was curious how my new final image stacked up against a recent Hubble image. I've uploaded the result. I think not bad for a 10-inch Newtonian.

Thanks for looking.

RichardJ.
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Last edited by RichardJ; 03-04-2012 at 09:53 PM.
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  #17  
Old 03-04-2012, 02:15 AM
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jsmoraes (Jorge)
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Great RichardJ, you done. Excelent comparison. That is it.

What seems to be Eta star on your photo, it is Eta star and the bright center of the clouds.
I can see many details from Hubble image in your photo !

Last edited by jsmoraes; 03-04-2012 at 02:28 AM.
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  #18  
Old 03-04-2012, 08:39 AM
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multiweb (Marc)
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Very cool Richard. You've got some terrific details.
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  #19  
Old 04-04-2012, 07:33 AM
RichardJ (Richard)
Psalm 19: 1 - 4

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Thanks to everyone for your kind comments.
I'm going to give it a more concerted effort when the conditions are right.

regards,

RichardJ.
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