NTNUJAVA Virtual Physics Laboratory
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"That their main business was not put into the mind knowledge which was not there before, but to turn the mind's eye towards light so that it might see for itself." ...Plato's advice to educators(429-347BC)
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Author Topic: Solar and Lunar Eclipse Model  (Read 15479 times)
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ahmedelshfie
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on: September 16, 2010, 05:47:04 pm » posted from:SAO PAULO,SAO PAULO,BRAZIL

This applet is Solar and Lunar Eclipse Model
written by Mario Belloni and Dr. Todd Timberlake ,,modified layout by Ahmed.
Original applet  http://www.compadre.org/osp/items/detail.cfm?ID=9640
The Solar and Lunar Eclipse model simulates the occurrences of solar and lunar eclipses. Moon's orbital inclination of 5.145 degrees with respect to the ecliptic (the Earth-Sun orbital plane) is what is responsible for solar and lunar eclipses not occurring every month.
In addition, the orbital plane of Moon precesses every 8.85 years, the so-called precession of the apsides.
The inclination and the motion of Moon and Earth are depicted (the size of Sun, Earth, and Moon and the size of Moon's orbit are not shown to scale).
The illuminated sides of Earth and Moon and the regions of possible eclipses (in yellow and green) are also depicted.
In the Ecliptic View, the motion of Sun and Moon across the sky (+/- 7 degrees from the ecliptic) are shown.
Moon's phase is shown and solar and lunar eclipses can occur on the ecliptic when Earth, Sun, and Moon line up properly. 

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lookang
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Reply #1 on: September 16, 2010, 06:35:11 pm »

currently the sun earth moon are object sphere, it will be a visual enhancement if you add textures to the 3D java view
http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=1830.msg7132#msg7132

in normal 3D, i have customized the pictures here
http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=1501.0
you can used sun, earth, moon

this can be your efforts to make the applet better for learning Grin
« Last Edit: September 16, 2010, 06:42:32 pm by lookang » Logged
ahmedelshfie
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Reply #2 on: September 16, 2010, 07:03:14 pm » posted from:SAO PAULO,SAO PAULO,BRAZIL

I think is a good idea but in real im not have enough experience in astronomy. Roll Eyes
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Reply #3 on: September 16, 2010, 07:36:04 pm »

Try to add the graphics inside the applet.
U will learn alot.
Slowly learn u can be a designer one day like prof Hwang Smiley
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ahmedelshfie
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Reply #4 on: September 16, 2010, 07:55:48 pm » posted from:SAO PAULO,SAO PAULO,BRAZIL

Is my dream is be designer like Prof Hwang or have part from him Knowledge he the hero.
What graphic that you suggest to me add ?
I'm really no have experience in astronomy.
Pls:waiting answer.

 
« Last Edit: September 16, 2010, 07:57:26 pm by ahmedelshfie » Logged
lookang
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Reply #5 on: September 16, 2010, 08:25:22 pm »

U can open 2 ejs console . Look at my applet, figure out how I add sun earth moon graphics.
Follow the same logic and copy them into "yours" and add to this one.
Alot of thinking but that is how I learn Smiley
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ahmedelshfie
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Reply #6 on: September 16, 2010, 08:38:15 pm » posted from:SAO PAULO,SAO PAULO,BRAZIL

OK I'm gonna to do it, but you think this will no be different moon phases applet because
On solar and lunar eclipse we have java 3d.
You suggest i follow all steps that you do on moon phases however, i will do it today i will have free time later
And i will use your way that you explain.
Thanks to help. Smiley
« Last Edit: September 16, 2010, 08:46:55 pm by ahmedelshfie » Logged
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"That their main business was not put into the mind knowledge which was not there before, but to turn the mind's eye towards light so that it might see for itself." ...Plato's advice to educators(429-347BC)
 
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