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  4. » Comet Neowise at the telescope

 
Comet Neowise at the telescope...

Paesaggi Cristian

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Comet Neowise at the telescope sent on July 16, 2020 (1:02) by Cristianfat. 15 comments, 605 views.

Posa B f/5.0, ISO 800, tripod.

Questa è una ripresa che ho voluto tentare nonostante quello che normalmente si è portati a pensare, ovvero che l'immagine di una cometa debba principalmente mostrare le sue code.... ed invece all'alba del 14 luglio ho voluto concentrarmi anche sul suo nucleo, per cogliere i dettagli dei gas emessi ancor prima che questi vadano a disperdersi per formare la coda.Ecco il risultato, inusuale ma credo molto interessante, che contiene molte informazioni inedite, come il leggero alone verde frontalmente al nucleo, molte striature nella coda e l'emissione apparentemente bipolare dei gas.Ripresa ottenuta mediando 75 pose da 20 secondi (25 minuti totali) ad 800 iso col telescopio newton da 25cm F5 ed una reflex FF. This is a shot that I wanted to try despite what you normally think, that is, that the image of a comet should mainly show its tails .... and instead at dawn on July 14 I also wanted to focus on its nucleus, to grasp the details of the gases emitted even before they go to disperse to form the tail. Here is the result, unusual but I think very interesting, which contains a lot of unpublished information, such as the light green halo in front of the nucleus, many streaks in the tail and apparently bipolar emission of gases. Shot obtained by averaging 75 poses from 20 seconds (25 minutes total) to 800 ISO with the 25cm F5 newton telescope and an FF reflex.



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avatarjunior
sent on July 16, 2020 (5:40) | This comment has been automatically translated (show/hide original)

Great.

avatarsenior
sent on July 16, 2020 (7:46) | This comment has been automatically translated (show/hide original)

Wow! Great details!!! Congratulations Marzio

avatarsenior
sent on July 16, 2020 (8:19) | This comment has been automatically translated (show/hide original)

Great shot Cri...as always!!!!!!!!!!

avatarsenior
sent on July 16, 2020 (8:57) | This comment has been automatically translated (show/hide original)

Wouw... Wouw... Wouw.... how many details.
Bravissimo.
Gp

avatarsenior
sent on July 16, 2020 (10:23) | This comment has been automatically translated (show/hide original)

As a specialized magazine and for the study by scientists, nothing but amateur photos!!! all the compliments!!! From Editor's Pick right away ...

avatarsupporter
sent on July 16, 2020 (10:56) | This comment has been automatically translated (show/hide original)

Original shot with a field slightly larger than 1st, which highlights all the nuances of the tail.
Bravo.

avatarsenior
sent on July 16, 2020 (11:48) | This comment has been automatically translated (show/hide original)

Thank you all for your appreciation! For the EP you need more "scenic" images, this one I don't think lends much, thanks anyway for the esteem Enrico!

avatarsenior
sent on July 16, 2020 (12:06) | This comment has been automatically translated (show/hide original)

I share the enthusiasm for the many details collected.
Compliments! Good job.
It is true that this type of photo is not scenic in nature, but for the obvious peculiarities it is very fascinating and anyway the composition of the image is impeccable.
Bravo!

avatarsenior
sent on July 16, 2020 (12:15) | This comment has been automatically translated (show/hide original)

Simply outstanding!!! I understand your response to the dramatic images, but I allow myself to contradict you... this is. I am convinced that this image will also have a well-deserved EP.
Hello, David

avatarsenior
sent on July 16, 2020 (12:31) | This comment has been automatically translated (show/hide original)

Completing the talk about the scientific significance of this image, I report a comment I received from an astronomer editor of a national astronomical journal, for those who are more curious:
"Your work could be very useful for establishing the direction of rotation and direction of the spin axis of the comet.
The gases decouple from the dusts at a short distance from the nucleus, so in your field there are both very mixed.
I'll also continue this study soon, especially with the Asiago telescopes.
Can you send me your original images to do a more detailed analysis of what Neowise presents?
The green halo surrounding the nucleus is due to the fluorescence of CN, which is always present in quantities in comets.
This seems to be even rich in sodium."

avatarsenior
sent on July 17, 2020 (10:39) | This comment has been automatically translated (show/hide original)

very interesting, congratulations

avatarsenior
sent on July 17, 2020 (11:17) | This comment has been automatically translated (show/hide original)

That's a really good job!
Compliments.

avatarsupporter
sent on July 17, 2020 (14:55) | This comment has been automatically translated (show/hide original)

great work

avatarsenior
sent on July 17, 2020 (17:43) | This comment has been automatically translated (show/hide original)

"Your work could be very useful for establishing the direction of rotation and direction of the comet spin axis.
Gusls break out of dust a short distance from the core, so both are very mixed in your field.
I'll also continue this study soon, especially with the Asiago telescopes.
Can you send me your original images to do a more detailed analysis of what Neowise presents?
The green halo surrounding the nucleus is due to the fluorescence of CN, which is always present in quantities in comets.
This seems to be even rich in sodium."
Caro Cristian, the above, seems to me the best accolade... many more compliments and ... Maiora!

avatarsenior
sent on July 18, 2020 (9:47) | This comment has been automatically translated (show/hide original)

These images you're posting about the comet are making me want to discover astronomy... really compliments I imagine the excitement




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