Triple Shadow transit on Jupiter

General physics and astronomy discussions not directly related to Celestia
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Jeam Tag M
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Age: 55
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Location: Southern suburb, Paris, France

Post #41by Jeam Tag » 02.05.2004, 16:41

Calculus wrote:
Jeam Tag wrote:Hello Calculus, Thanks, I had lost your adress, so do not add your great album in my ' Contributors repertory' page. I've corrected this. Jeam
You are very welcome to post it.
OK, Calculus. This is just a listing in th http://jeam.tag.free.fr/CELESTIAhtml/CelestiaAddons-Contributeurs.htmpage.
The Galleries paragraph is, for the moment:
Galeries d'images
[Christophe Andr? aka Kendrix] Kendrix's Gallery Images
[Darkbolt] Celestial Gallery
[DBrady] High Res
[Calculus] Celestial Phenomena
[Darkmiss] My Celestia / Asteroids Textures / CD Covers
[Don Edwards] Don's Project Gallery
[Frank Gregorio] Frank's Celestia World
[Thomas Guilpain] Sci-Fi Worlds
[Jack Higgins] Jack's Celestia
[Jestr] Images
[Jens Meyer aka Jim] Celestia Pictures
[El Pelado] My Universe
[Praesepe] Celestia Visions
[Rassilon] Alien Vistas
[SumO] Celestia Art
(Sitenames are links)
I want to benefit of this thread to demand someone I have forgotten to announce me his album of Celestia screenshots, so that I will add it in this small repertory: thank you very much. Jeam
Catalogue des ajouts /Catalog for the Add-Ons in French
...PAGES LOSTS, SORRY

Guest

Post #42by Guest » 02.05.2004, 21:50

There is a special shot with 3 shadows on jupiter


Thxs, Calculus. Very interesting!

Is there a case with 3 shadows on the planet and 2 shadows on satellites?

Btw, I've done more little changes on the video.
I intend in a next version to brighten galilean satellites albedo to get more realism.
Very easy to do in Celestia on .jpg files.
The main problem is to find a good reference...

SimFan
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With us: 15 years 5 months

Post #43by SimFan » 02.05.2004, 21:52

There is a special shot with 3 shadows on jupiter


Thxs, Calculus. Very interesting!

Is there a case with 3 shadows on the planet and 2 shadows on satellites?

Btw, I've done more little changes on the video.
I intend in a next version to brighten galilean satellites albedo to get more realism.
Very easy to do in Celestia on .jpg files.
The main problem is to find a good reference...
SF :)

Calculus
Posts: 216
Joined: 19.10.2002
With us: 16 years 11 months
Location: NY

Post #44by Calculus » 03.05.2004, 08:15

SimFan wrote:
There is a special shot with 3 shadows on jupiter

Thxs, Calculus. Very interesting!

Is there a case with 3 shadows on the planet and 2 shadows on satellites?

Btw, I've done more little changes on the video.
I intend in a next version to brighten galilean satellites albedo to get more realism.
Very easy to do in Celestia on .jpg files.
The main problem is to find a good reference...


Well I think there is I made a movie I posted in my gallery about that
---Paul
My Gallery of Celestial Phenomena:
http://www.celestiaproject.net/gallery/view_al ... e=Calculus

SimFan
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With us: 15 years 5 months

Post #45by SimFan » 03.05.2004, 10:07

May you can tell us how you are produce this?


Captured as fullframes with Celestia, trimmed, filtered, titled, audioed with VirtualDub, encoded with RealProdod10Basic. Preprocessing of audio track with ExactAudioCopier.

More info about making sim videos here :

http://jeanpaj.free.fr/Videos_JP/Orbite ... ideos_.htm

I also posted a lot in Orbiter forum.

http://orbit.m6.net/v2/read.asp?id=15752

Get out my profile and my posts.
Try also to search (not very efficient at M6!) for SimFan, Azimuth, Mustard, video
SF :)

SimFan
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Post #46by SimFan » 03.05.2004, 10:23

a movie I posted in my gallery


Many thxs, Calculus :)
Your gallery is superb!

But I can't play the movie on any of my reader.

http://www.celestiaproject.net/albums/Calculus ... s_1997.avi

It stays stuck on 1st picture. Perhaps another link?
SF :)

SimFan
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With us: 15 years 5 months

Post #47by SimFan » 03.05.2004, 10:31

It stays stuck on 1st picture


Sorry, Calculus :(

Not stuck at all, but the performance begins only at 3/4 of total length ;)
SF :)

SimFan
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Post #48by SimFan » 03.05.2004, 16:06

Hi, :)


I intend to make a closeup hires movie of 11/11/97 event.

In following picture, in upper row are genuine Celestia medres files sorted by albedos as found on the web, resp. Io 63%, Jupiter 50%, Europa 46%, Ganymede 43%, Callisto 17%.


Image

In lower row, I quickly "eyeball " adjusted brightness of Io and Ganymede, using Brightness, Contrast and Gamma controls in Irfanview.

I'd appreciate if anybody could do a more scientific correction and send/indicate a link to me related zipped .jpg files.

Thxs. :)
SF :)

SimFan
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Post #49by SimFan » 04.05.2004, 22:17

Hi :)


a closeup hires movie of 11/11/97 event



All details here (946kB) :

http://jeanpaj.free.fr/Juju/Jup5.rmvb

Credits :
Capture: Sim integrated feature. Could come with next+n Orbiter version? Set to 640x480, 25 fps, avi fullframes.
Video edition and audio mixing: VirtualDub with Frame tweaker and subtitler(Sub Station Alpha based) addon filters.
Audio preprocessing : Exact Audio Copier.
Encoding: RealProducer10Basic, 350 kbits/s VBR download audience, 2 pass, sharpest video, music audio.

@ Calculus :

In present Celestia version, I couldn't see the 2 successive shadows on Io. What's the real thing?
SF :)

Calculus
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Location: NY

Post #50by Calculus » 05.05.2004, 07:08

SimFan wrote:Hi :)


@ Calculus :

In present Celestia version, I couldn't see the 2 successive shadows on Io. What's the real thing?


I made it a while ago, maybe Chris changed the custom orbits.
Or may be the POV was not located on earth. I can't remember
Sorry
---Paul

My Gallery of Celestial Phenomena:

http://www.celestiaproject.net/gallery/view_al ... e=Calculus

SimFan
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With us: 15 years 5 months

Post #51by SimFan » 05.05.2004, 10:05

may be the POV was not located on earth


The 2 successive shadows on Io are independant of POV.
I was just interested in knowing if this event was true?

Checking it with SNP4 shows the event at 05:34 UT, and Io passing just outside the Callisto penumbra. => 0 shadow on it!

This is a point of view from Earth :


Image

I found on the web this "official" astronomical info

http://www.seds.org/pub/info/newsletter ... p9711.html

Nov 10, 1997 Three moon shadows will appear on Jupiter, starting at 9:10 PM

Nothing said about shadows on Io :(
SF :)

Calculus
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Location: NY

Post #52by Calculus » 05.05.2004, 22:25

SimFan wrote:
may be the POV was not located on earth

The 2 successive shadows on Io are independant of POV.
I was just interested in knowing if this event was true?

Checking it with SNP4 shows the event at 05:34 UT, and Io passing just outside the Callisto penumbra. => 0 shadow on it!


Nothing said about shadows on Io :(


You are totally right. It does not depend on the POV. I guess it was a glitch in an old Celestia version. Though, I tried again and I have a Io shadow with Celestia V1.3.0pre4

Let's say it is a nice bug
---Paul

My Gallery of Celestial Phenomena:

http://www.celestiaproject.net/gallery/view_al ... e=Calculus


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