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Which planet has the longest cycle of day and night?
The planet is Mercury. (Some people think it is Venus, but it is Mercury.)
Can planets be seen on a clear night with the naked eye?
Yes, some planets such as Venus, Mars, Jupiter, and Saturn are bright enough to be seen with the naked eye on a clear night. They appear as bright, star-like objects in the night sky, without the need for a telescope.
Which planets are never seen at midnight?
The planet Mercury can never be in the sky at your local midnight. Mercury's orbit is so small that as seen from the earth, it's always near the sun. So if the sun has been down for a while, then Mercury also must be down. Venus can be seen later (or earlier) than Mercury, but it's still inside the Earth's orbit and therefore can't be seen at midnight either.
What planet is the brightest at night?
Venus is the brightest planet in the night sky. It is often referred to as the "evening star" when it is visible after sunset or as the "morning star" when it is visible before sunrise. Venus's brightness is due to its thick cloud cover that reflects sunlight very effectively.
Which planets were known before the invention or the telescope?
Mercury, Venus, Mars, Jupiter, and Saturn were known before the invention of the telescope. These planets are visible to the naked eye in Earth's night sky, thus they were observed and named by ancient civilizations.
In the mercury night sky the brightest object would be?
Venus
The adage A night with Venus and a lifetime with mercury refers to what disease?
Syphilis
Characteristic of Mercury and Venus due to their close proximity to the sun?
Heat is the common denominator of Mercury and Venus. While Venus remains around 800 degrees, Mercury changes from extremely hot to extremely freezing, depending on which side is facing the Sun. Unlike Venus, Mercury does not have enough of an atmosphere to keep the heat in at night.
How long are the days on Venus's and mercury?
117 earth days is equal to 1 Venus day. (including night time.) Mercury's day is the equivalent to 176 earth days.
Why is it that planet Mercury cannot appear all night long in the sky as the full moon can?
Mercury is an inferior planet - it is closer to the Sun than Earth. Specifically, Mercury can't get more than about 28° from the Sun; Venus, which is farther from the Sun, can't get more than about 48° from the Sun.
Which planet has the longest cycle of day and night?
The planet is Mercury. (Some people think it is Venus, but it is Mercury.)
Are the stars planets or are they the same as the sun?
The night time stars are suns, so distant they appear as points of light. Note that the planets Mercury, Venus, Mars, Jupiter, and Saturn can be seen without a telescope and can be mistaken for stars.
What is unusual about the temperature of Venus compared to mercury?
The temperature of Venus is significantly higher than that of Mercury, despite Venus being further from the sun. This is due to Venus's thick atmosphere, which traps heat and creates a greenhouse effect. Mercury, on the other hand, has a very thin atmosphere, leading to more extreme temperature fluctuations between its day and night sides.
Why is mercury called the morning start and the evening star?
Mercury is called the morning star and the evening star because it can be seen during the day and the night. Venus can also be seen in the day and night too.
Which planet's cloud cover reflects light from the sun making it appear bright in the night sky?
Venus
Can planets be seen on a clear night with the naked eye?
Yes, some planets such as Venus, Mars, Jupiter, and Saturn are bright enough to be seen with the naked eye on a clear night. They appear as bright, star-like objects in the night sky, without the need for a telescope.
What is the temperature like on the inner planets?
Mercury: in the day about 700K at night about 100K Venus : All the time about 735K A more interesting question you should be asking yourself right now is: Why is Venus hotter than Mercury when it is further from the sun?
