Moons
If you have any questions,you can refer to some of the questions in the comment part by other astronomers I know,or simply email me at Valdricolim@yahoo.com.sg.
Friday, March 30, 2007
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NASA"s New Horizons image of Jupiter 1
These are Jupiter's massive storms,the Great Red Spot(GRS) and thedot just below it is the recently discovered Red Spot.Jr(RSJr)
NASA"s New Horizons image of Jupiter 2
This is an image of Jupiter's rings
NASA"s New Horizons image of Jupiter 3
This is an image of Jupiter's 4th largest moon,Europa,which has smooth icy surface and its diameter is slightly smaller than our Moon's
NASA"s New Horizons image of Jupiter 4
This is an image of Jupiter's 3rd largest moon,Io,which is the most active volcanic body in our Solar System due to the gravities of Jupiter and its other moons.It has a diameter slightly larger than our Moon's
NASA"s New Horizons image of Jupiter 5
This is an image of Jupiter's largest moon and the largest moonin our Solar System.Its diameter is about 470km more than Planet Mercury!
My issue in Astronomy
This the June issue
Pluto-Bound Spacecraft
Finally in 29 years!!NASA has launched a spacecraft to Pluto.
Astrophotography Gallery:
Featured image:Telescopic view of the crescent Moon(Can you see a crater or 2 of the Moon?)
Astrophotography Gallery:
Featured image:Telescopic view of Venus(Can you see a dim shadow of Venus's phrase?Because Venus is not at full phrase)
Astrophotography Gallery:
Featured Image:Telescopic view of Saturn(Can you see the gap between the planet and its rings?)
Astrophotography Gallery:
Featured image:Telescopic view of Jupiter(Can you see a dim dot just below the planet?Thats Ganymede,the largest Galilean satelite of Jupiter,largest moon of our solar system and larger than Mercury)
Astrophotography Gallery:
Featured Image:Gibbous Moon near dusk(evening)(Its Gibbous for sure,look carefully,is the Moon exactly round?)
Astrophotography Gallery:
Featured Image:Gibbous Moon(Can you see a small bright dot southwest of the Moon?Thats Jupiter)
6 comments:
Q:I heard that some moons are bigger than Mercury!Do you who are they?
A:They are the largest moons of Jupiter-Ganymede(The largest,5300km)and Saturn-Titan(5150km,the 2nd largest).Mercury's size is 4870km,and another of Jupiter's moon Callisto,is just 4806km in size,so its not counted as bigger than Mercury.
Q:Why does Jupiter's 3rd largest moon have the most active volcanoes in our solar system?
A:It is because of the ferocious gravities combination of Jupiter,Ganymede(Largest),Callisto(2nd largest)and Europa(4th largest).If all of them align together in a very straight line,Io will have its volcanoes launched almost 4oo miles in the air and at least 3.5 more massiver than Krakatoa's eruption.
Q:How many moons does Jupiter have?
A:It has 63 moons.
Q:Why does Triton revolve around Neptune in a retrograde orbit?
A:Scientists and astronomers think that it is because either Triton was captured by Neptune's gravity and was not part of Neptune's formation,or was involved in a major collision that reversed its orbit.
Q:Why are some names of our planets' moons are our names,like Juliet of Uranus?
A:Some,like Dione of Saturn,were named after ancient Roman and Greek mythlogies.Almost all of Uranus's moons were named after William Shakespears's plays,like Oberon and Ariel.
Q:Why was Pluto's largest moon Charon more than half its diameter?
A:These questions cant be answered,but scientists and astronomers think the formation of Charon was because of collision,and the formation may be related to our Moon's formation as well.
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