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  1. Galleries
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  4. » Jupiter satellite in transit and eclipse

 
Jupiter satellite in transit and eclipse...

Pianeti - Giove

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Jupiter satellite in transit and eclipse sent on February 22, 2013 (23:29) by Fabio Volpe. 30 comments, 2488 views.

Ripresa effettuata con telescopio Celestron C11 su NEQ6, Lumenera Skynyx M e filtri RGB Baader




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user15434
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sent on February 24, 2013 (12:01) | This comment has been automatically translated (show/hide original)

Excellent image ...
I moved on to the sin (I think slightly oval) :-(
See you soon,
David

avatarjunior
sent on February 24, 2013 (12:06) | This comment has been automatically translated (show/hide original)

Thanks David :-)
Unfortunately satellites, shadows and Jupiter have different movement speed, and when the satellite is in the globe is elongated also because you can not act on individual channels Asthe is precisely on the globe of the planet, something different instead is whether the satellite is outside and therefore are unable to process individually and then to better align the channels.

user15434
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sent on February 24, 2013 (12:18) | This comment has been automatically translated (show/hide original)

But if it were possible to reduce the "exposure time", the satellite would no longer be "fixed"? Obviously Jupiter would be noisier as seen in this image
See you soon,
David

avatarjunior
sent on February 24, 2013 (12:27) | This comment has been automatically translated (show/hide original)

So you speak of shadow, and in this case there is another factor, namely that when the shade is close to the edge of Jupiter is still stretched, while as in the picture you put is more towards the center support which makes come more round, I've noticed several times in the images that I did, now do not know exactly what the cause is, but I think that is due to the projection of the shadow from the light that comes on TV, but I guarantee you that centrano exposure times, also because of Jupiter that has a rotation of 10 hours, are minimized.

user15434
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sent on February 24, 2013 (14:23) | This comment has been automatically translated (show/hide original)

Hello Fabio,
I talked own the disc:-D ... in the sense that, if you compare your photo with what I posted, the disk I is more oblong in your case. Obviously we are talking about stupid things, but when we are faced with a picture-perfect ... ;-)
You carry the comparison of the two:



This is because in my opinion, with your instrument and your excellent quality astroimager you may even take some of the details of Jupiter's moons! As for the shadow instead, I completely agree with you: the closer you get to the hard, more for the sake of perspective the shadow of the satellite is elongated (like sunspots on the Sun).
For exposure times, as you have exposed Ottenages the image posted?
A salutone,
David

avatarjunior
sent on February 24, 2013 (14:55) | This comment has been automatically translated (show/hide original)

In fact it is a more lengthened my hair, so I did a search on the image you posted and the data collected are
Jupiter and Io taken at 8:24 UT on 11-22-12.

Scope: C14
Mount: CI-700
Camera: Flea3 with Celestron 2x Barlow Last
Filers: Astrodon RGB
Stack of 1400 images per channel
Processed with AS2!, Registax 6, Astra Image, PS4

From these data, I can deduce that as recovery time we're there, that I did 30 seconds per channel at 33 FPS, but it says here that has taken over 1400 frames per channel, hence conclude that went on 60 FPS with similar times to my , but with the C 14 is natural to have more light and go the fastest.
The figure but sobering is the date ofacquisition, or the 11/22/2012, the date oposizione close to the planet that was December 3, so the light came almost frontally, while my image was taken two months and a half after the opposition, so the light the oblique arrives ... now I wonder (well established that recovery times are similar) if the angle of light also affects the allungamente or not the satellite, something that I had not even thought about: fconfuso:

user15434
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sent on February 24, 2013 (15:09) | This comment has been automatically translated (show/hide original)

... Instead I thought, "What if it's a particular atmosphere of Jupiter to appear in your case the disc more oblong?" The mystery deepens ... :-D.
However, the times that I've shown you should have moved the (my tables say that with a C11 must be under 1.6 minutes of exposure in total).
Greetings Jupiter,
David

avatarjunior
sent on February 24, 2013 (15:23) | This comment has been automatically translated (show/hide original)

Look, it is a rough and that the time is more than right, I can assure you 100%, but I'm still doubt the satellite stretched ... I'm still working on the other 24 movies of the evening, and see the differences There are, in fact hoping to solve the mystery:-D

avatarjunior
sent on February 26, 2013 (23:44) | This comment has been automatically translated (show/hide original)

It is a problem of stacking? However, Fabio beautiful image, perhaps with a seeing better'd get more detail, but I know the c11 and it is not easy catch suitable evenings.
Congratulations ;-)

avatarjunior
sent on February 27, 2013 (0:56) | This comment has been automatically translated (show/hide original)

Helium Hello, thanks for the passage and comment :-)
As much detail as I got on jupiter, jupiter is in fact in October, an evening truly remarkable, those that occur 1-2 times a year, on average, however, already seeing a discreet as in this case, give Puio satisfaction :-)




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