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  1. Galleries
  2. »
  3. Astrophotography
  4. » ISS Transit on the Moon

 
ISS Transit on the Moon...

Astronomia Cristian

View gallery (23 photos)

ISS Transit on the Moon sent on July 20, 2018 (23:59) by Cristianfat. 19 comments, 1877 views.

1/250 f/8.0, ISO 400, tripod.

Era il 1969, 49 anni fa, esattamente il 20 luglio: il primo piede umano toccava il suolo Lunare. Questa sera, quasi a voler ricordare quel giorno, i 6 uomini dell'equipaggio della ISS hanno "sorvolato" proprio le zone dell'atterraggio di quel giorno. Ovviamente è un gioco prospettico, le distanze sono molto diverse, ma la coincidenza mi ha lasciato senza parole. La ripresa è stata ottenuta alle 20:12 UT da Montecassiano (MC - ITALY) con una Canon 200d applicata al fuoco diretto di un rifrattore apocromatico Takahashi 102/820. Pose da 1/250" a 400 iso, scatti in raffica formato jpg (5 fps). Per evidenziare meglio la stazione spaziale sul disco Lunare, la sua sagoma è stata elaborata in negativo. ---------------------------------------------------------- It was 1969, 49 years ago, exactly on July 20th: the first human foot touched the Lunar ground. Tonight, as if to remember that day, the 6 crew members of the ISS have "flew over" just the landing areas of that day. Obviously it is a perspective game, the distances are very different, but the coincidence left me speechless. The shot was obtained at 20:12 UT from Montecassiano (MC - ITALY) with a Canon 200d applied to the direct focus of an apochromatic refractor Takahashi 102/820. Exposition 1/250", 400 iso, shots in burst, jpg format (5 fps). To better highlight the space station on the Lunar disk, its shape has been processed in negative.



View High Resolution 3.6 MP  



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avatarjunior
sent on July 21, 2018 (0:43) | This comment has been automatically translated (show/hide original)

Great photo, fascinating! That ISS "line" caught me, congratulations!

avatarjunior
sent on July 21, 2018 (3:21) | This comment has been automatically translated (show/hide original)

Photo seemingly simple but well taken care of in every detail, the alignment you did it manually? Also the capture was random or programmed? :-P

avatarsenior
sent on July 21, 2018 (8:37) | This comment has been automatically translated (show/hide original)

Great job!

avatarsenior
sent on July 21, 2018 (11:59) | This comment has been translated

Great!

avatarsenior
sent on July 21, 2018 (16:54) | This comment has been automatically translated (show/hide original)

Daomao: The alignment I did it by simply overlapping the images of the moon, which then were already aligned in the 3 seconds of burst that I selected.... For my mistake in setting the position I expected it just outside the lunar disk, it was better that way! :-D :-D :-D

avatarjunior
sent on July 21, 2018 (20:52) | This comment has been automatically translated (show/hide original)

Spectacular, super sharpness.
Congratulations

avatarsupporter
sent on July 21, 2018 (21:42) | This comment has been automatically translated (show/hide original)

Fantastic, both for the event captured and the technical result, especially considering how fast it moves.
Moon well-managed, especially for the chromatic variations, but incredible is the ISS: it goes from white on black sky to black on the moon. It's the most Caravaggio astronomical photo I've ever seen. :-D

avatarsenior
sent on July 21, 2018 (22:55) | This comment has been automatically translated (show/hide original)

Dear Motofoto, Read the last two lines?

avatarsupporter
sent on July 21, 2018 (23:34) | This comment has been automatically translated (show/hide original)

Read and keep the positive comment for creativity. The final effect, real or simulated, is however perceived as a uniform passage (false effect Adelson applied to perfection, a kind of double deadly leap between light and dark).

avatarsenior
sent on July 22, 2018 (1:12) | This comment has been automatically translated (show/hide original)

Then I had not correctly interpreted your judgement... And I don't have such a thorough culture about it. Unconsciously so I created a kind of optical illusion, I understand.... Thanks for the explanation!

avatarsupporter
sent on July 22, 2018 (1:23) | This comment has been automatically translated (show/hide original)

Exact.
The Adelson effect is the one for which the object appears darker when inserted between light elements and vice versa (Https://www.illusionsindex.org/ir/checkershadow).
As our brain knows that the visual system is "affected" by this effect, it seeks to compensate rationally by evaluating the brightness constant.
In other words, when one sees the dark version superimposed on the moon he thinks: "It looks black, but it is not black. It's just my visual system that makes me see black because around is white, whiter than the white that has the ISS when it is on the black background "... and instead is just black because you have reversed!
If I had left it to true brightness, it would have drowned on the lunar white.
In short a nice visual trap.
;-)

avatarsenior
sent on July 22, 2018 (1:44) | This comment has been automatically translated (show/hide original)

In fact!!! The non-inverted one was seen just in the brightest central parts... So I processed it in "difference" method. Of course I also have the standard version, but at a glance this is visually more direct.

avatarjunior
sent on December 27, 2018 (13:58) | This comment has been automatically translated (show/hide original)

Congratulations Spectacular!

user117231
avatar
sent on April 20, 2019 (20:08) | This comment has been automatically translated (show/hide original)

Show Us The original RAW of this photo?

avatarsenior
sent on April 20, 2019 (20:12) | This comment has been automatically translated (show/hide original)

Did you read the description?

user117231
avatar
sent on April 20, 2019 (20:39) | This comment has been automatically translated (show/hide original)

I read.
I just Want to prove that on the RAW there is the passage of the ISS. 8-)

avatarsenior
sent on April 20, 2019 (20:46) | This comment has been automatically translated (show/hide original)

I'm jpg! However There are sites where you can predict the steps and move where Captain... With These systems it is quite simple to grasp similar phenomena. I also made a transit on the sun, but they need filters of absolute security.

user117231
avatar
sent on April 20, 2019 (20:49) | This comment has been automatically translated (show/hide original)

Can I ask you why a photo so prestigious you did not evaluate to shoot in RAW?

avatarsenior
sent on April 21, 2019 (0:29) | This comment has been automatically translated (show/hide original)

Because I feared that the burst slowed down just during the passage, since for safety I started a little ' before the passage.




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