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FORUMS Photo Sharing & Visual Enjoyment Astronomy & Celestial
Thread started 15 Sep 2017 (Friday) 17:38
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Goodbye Cassini

 
nardes
Senior Member
Joined Jun 2009
Australia
Sep 15, 2017 17:38 |  #1

Here is an image of the planet Saturn as seen from our back garden in Brisbane, taken through my telescope on the evening that the Cassini spacecraft made its fateful plunge into Saturn's atmosphere, ending this incredible mission just one-month shy of Cassini’s 20th launch anniversary.

The spacecraft and its impact are well beyond the ability of my telescope to resolve, so no live crash-and-burn photos.:-)

It was a poignant evening, gazing at the images on my computer screen as Saturn appeared to dance to the tune of the scintillations caused by the jet stream’s impact on the Earth’s atmosphere.

Cheers

Dennis

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MalVeauX
"Looks rough and well used"
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Joined Feb 2013
Florida
Sep 15, 2017 17:45 |  #2

Will be interesting to see what they publish tomorrow, if they do. They tend to publish within a day or two of receiving data and releasing to the public.

Will be super interesting to see the atmosphere right before it crushed Cassini.

I don't think any terrestrial telescopes will be able to resolve Cassini's fireball on Saturn when it happened around 8am. It's smaller than some of the ice crystals in the rings, and we can't even begin to resolve those.

Very best,


My Flickr (external link) :: My Astrobin (external link)

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Capn ­ Jack
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NE USA
Sep 15, 2017 19:42 as a reply to MalVeauX's post |  #3

If it were bright enough, we could see it but larger than "actual size". It would appear at whatever resolution allowed by the sensor and lens system.

Single molecules are mostly much smaller (I'm not including polymers and some large biomolecules in the discussion) than the resolution allowed by light microscopes, yet we detect the light emitted by these routinely. See https://www.microscopy​u.com ...e-fluorescence-microscopy (external link) for a list of references.




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nardes
THREAD ­ STARTER
Senior Member
Joined Jun 2009
Australia
Sep 15, 2017 20:49 |  #4

I understand that as there is little/insufficient/no oxygen in Saturn’s atmosphere to support combustion, NASA were not expecting a fireball event?

Cheers

Dennis




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monty28428
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Carolina Beach
Sep 16, 2017 03:12 |  #5

Very nice shot of Saturn!




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Celestron
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Texas USA
Post has been edited 1 month ago by Pekka with reason 'quote fixed'.
Sep 16, 2017 08:15 |  #6

nardes wrote in post #18453173 (external link)
Hotel...lighting from available lamps.

Very very nice capture of Saturn ! Thanks for posting .




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nardes
THREAD ­ STARTER
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Joined Jun 2009
Australia
Sep 16, 2017 15:28 |  #7

Celestron wrote in post #18453458 (external link)
Very very nice capture of Saturn ! Thanks for posting .

Thanks, I appreciate your comments.:-)

Cheers

Dennis

PS - is this a Forum bug? I see that in your reply a different message is quoted from another post #18319151?

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Pekka
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Sep 16, 2017 15:47 |  #8

nardes wrote in post #18453753 (external link)
Thanks, I appreciate your comments.:-)

Cheers

Dennis

PS - is this a Forum bug? I see that in your reply a different message is quoted from another post #18319151?
thumbnailHosted photo: posted by nardes in
./showthread.php?p=184​53753&i=i207919449
forum: Astronomy & Celestial

It is possible to quote any post, with multiquotes it is easy to pick them around the forums. It is wise to check the preview before posting, though. I'll edit the post for the correct quote now.


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nardes
THREAD ­ STARTER
Senior Member
Joined Jun 2009
Australia
Sep 17, 2017 02:51 |  #9

Hi Folks

I just added some more IR 642nm data to my Saturn LRGB image and after performing “Digital Development” in Lightroom and “Add Space Object enhancement” in Photoshop CC, noticed a strange, geometric object in the bottom left hand corner – I wonder if this could be a candidate for the Cassini Spacecraft!:-);-)a :p

Cheers

Dennis

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Goodbye Cassini
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