Q:

Can you see Jupiter without a telescope?

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Quick Answer

Jupiter is visible without a telescope and is the fourth-brightest object in the sky after the sun, the moon and the planet Venus. It is three times brighter than the brightest star, Sirius.

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Full Answer

The first person to observe Jupiter through a telescope was the scientist Galileo Galilei. He also observed Jupiter's four largest moons orbiting the planet, and this helped refute the geocentric theory that everything revolved around the Earth, which was the belief held by the Catholic church at that time. Galileo came out in favor of the Copernican theory that the Earth, Jupiter and the other planets revolved around the sun. For this he was persecuted by the church, forced to recant this theory and sentenced to house arrest where he remained until he died.

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    Why is Venus called the evening star?

    A:

    The planet Venus is normally referred to as the evening star because it becomes visible just when the sun is about to set. This planet is also referred to as the morning star as it sometimes can be seen shinning brightly just before the sun rises in the morning.

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    What is Jupiter's surface like?

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    Instead of having a rocky surface, Jupiter is gaseous up to the inner core, which is either rock or a molten liquid. The gases in its atmosphere include hydrogen and helium.

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    What is Jupiter made of?

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  • Q:

    Which planet is closest to Jupiter?

    A:

    No one planet is always closest to Jupiter, as the range between Jupiter and the other planets varies depending on its position in orbit. The closest approach Jupiter is capable of making to another planet is with Mars, at a minimum separation of 551 million kilometers.

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