In this image, we see four of Jupiter's moons.  Top left is Europa, just slightly off center is Callisto, the dark spot near the edge of Jupiter is Callisto's shadow, bottom right near Jupiter is Ganymede, and far bottom right is Io.

 

DATE/TIME:  The evening of August 8th 2009 @ approximately 10:45pm CST.

CAMERA:  Imaging Source video cam, DMK21au04.

TELESCOPE:  Celestron C9.25 (235mm) SCT @ F/10.

SOFTWARE:  Registax, Photoshop CS3.

 

 

This image shows two of Jupiter's moons transiting across it's face.  The dark spot to the far left is Ganymede's shadow,  The dark spot dead on center of Jupiter is Europa's shadow.  The next dark spot down and to the right is Ganymede and just slightly above and to the right of Ganymde the is another much fainter dark spot which is Europa.

 

DATE/TIME:  The evening of August 26th 2009 @ approximately 10:45pm CST.

CAMERA:  Imaging Source video cam, DMK21au04.

TELESCOPE:  Celestron C9.25 (235mm) SCT @ F/25

BARLOW:  2.5x Telvue powermate..

SOFTWARE:  Registax, Photoshop.

 

 

 

This image shows the shadow of Io, exiting transit across the face of Jupiter.

 

DATE/TIME:  The evening of October 12th 2009 @ approximately 9:00pm CST.

CAMERA:  Imaging Source video cam, DMK21au04.

TELESCOPE:  Celestron C9.25 (235mm) SCT @ F/25.

BARLOW:  2.5x Telvue powermate.

SOFTWARE:  Registax, Photoshop.

 

Jupiter,  Average distance from the Sun, 483.7 million miles.

Average distance from Earth, 390.7 million miles.

Rotation period, (days) 9.9 hours.

Orbital period, (year) 11.9 Earth years.

Diameter, 88,846 miles.

Gravity, 100 Earth pounds = 250 pounds on Jupiter.

Moons, 63.

Jupiter is the largest planet in our solar system.  Largely made up of hydrogen and helium, Jupiter has the appearance of being layered. This effect is further enhanced by alternating east and west winds with separate zones of composition and temperature. The “Great Red Spot,” has winds of an estimated 400 miles per hour.

Jupiter’s extremely large number of moons include the four Galilean moons, Io, Europa, Ganymede and Callisto. Discovered by Galileo Galilee over 400 years ago.

 

 

 

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