What is the main reason Mercury is much hotter than the moon?
What is the main reason Mercury is much hotter than the Moon? Mercury is closer to the Sun.
Why is Mercury’s surface temperature varies so much from day to night?
Mercury's surface temperature varies so much from day to night because,it is so close to the sun, when it is facing the sun it is extremely hot. When it is not facing the sun it gets very cold. List important characteristics of each inner planet. Mercury is the hottest planet and also is the smallest planet.
What factor most helps the Earth maintain a relatively constant temperature quizlet?
The Sun is the primary source of energy that influences any planet's temperature, including Earth. The amount of energy received from the Sun is called insolation; the ratio reflected is called the albedo.
Where did the oxygen in our atmosphere come from quizlet?
What produced the most of the oxygen in the earth's atmosphere? Most of this oxygen comes from tiny ocean plants – called phytoplankton – that live near the water's surface and drift with the currents. Like all plants, they photosynthesize – that is, they use sunlight and carbon dioxide to make food.
Why are Mercury and Venus so hot?
Even though Mercury is closer to the Sun, Venus is the hottest planet in our solar system. Its thick atmosphere is full of the greenhouse gas carbon dioxide, and it has clouds of sulfuric acid. The atmosphere traps heat, making it feel like a furnace on the surface. It's so hot on Venus, the metal lead would melt.
What is Mercury’s temperature?
It is understood that the sunny side may reach temperatures of 750 to 800 degrees F., while the nighttime temperature plummets to nearly -330 degrees F. The average temperature on Mercury is a balmy 354 degrees F.
What causes Mercury’s temperature?
"The barren, rocky surface is blasted by solar radiation, which raises its temperature to above 840 °F (450 °C) at noon on the equator when the planet is nearest the Sun…. At night the surface temperature plumets to below −290 °F (−180 °C)!"
Why is Mercury a very hot planet?
Mercury has almost no atmosphere. Because it is so close to the sun, it can be very hot. On its sunny side, Mercury can reach a scorching 800 degrees Fahrenheit! (But Mercury is not the hottest planet in the solar system.
Why were constellations essential for ancient peoples quizlet?
Why were constellations essential for ancient peoples? Constellations provided a calendar to support agriculture.
What is the typical dynamic range of an astronomical image group of answer choices?
Most raw images from a DSLR or astrophotography camera contain 16-bit pixels holding values that can technically range from 0 to 65,535, but they have to be scaled down to the 0 to 255 range before they can be displayed.
How does ozone in the atmosphere protect living things on Earth’s surface quizlet?
Ozone layer (in the stratosphere) protecting living things dangerous radiation from the sun, ozone layer traps energy from the sun to keep Earth's surface warm enough for living things to survive, and the mesosphere, protects Earth's surface, from being hit by most meteoroids.
How did volcanoes contribute to the formation of Earth’s atmosphere quizlet?
As the Earth slowly cooled its outer surface hardened. Erupting volcanoes released hot gases from inside Earth. These gases surrounded Earth, forming an atmosphere. Ancient Earth's atmosphere was mainly water vapor with a little carbon dioxide (CO2) and nitrogen.
Is Mercury hot or cold?
It is understood that the sunny side may reach temperatures of 750 to 800 degrees F., while the nighttime temperature plummets to nearly -330 degrees F. The average temperature on Mercury is a balmy 354 degrees F.
What planet is the coldest?
Uranus The coldest planet in our solar system on record goes to Uranus which is closer to the Sun and 'only' about 20 times further away from the Sun than the Earth is. The lowest temperature recorded there was minus 224 degrees Celsius.
How hot and cold is Mercury?
It is understood that the sunny side may reach temperatures of 750 to 800 degrees F., while the nighttime temperature plummets to nearly -330 degrees F. The average temperature on Mercury is a balmy 354 degrees F.
What is special about Mercury?
The closer a planet is to the Sun, the faster it travels. Since Mercury is the fastest planet and has the shortest distance to travel around the Sun, it has the shortest year of all the planets in our solar system – 88 days.
What two factors influence whether gas particles stay or leave a planet’s atmosphere group of answer choices?
The ability of planets to hold an atmosphere depends on the strength of the gravity and the speed of the particle, which depends on the surface…
What is photometry in astrophysics?
photometry, in astronomy, the measurement of the brightness of stars and other celestial objects (nebulae, galaxies, planets, etc.). Such measurements can yield large amounts of information on the objects' structure, temperature, distance, age, etc.
What is a wave use the terms wavelength and frequency in your definition select all that apply?
Answer. A wave is a repeating disturbance that travels outward, like ripples moving through water. The distance between crests (or troughs) of the wave is the wavelength, and the number of crests that move past a given location each second (or other unit of time) corresponds to the frequency of the wave.
Which statement describes an important role of carbon dioxide in Earth’s atmosphere quizlet?
Which statement describes an important role of carbon dioxide in Earth's atmosphere? Plants use carbon dioxide to make food.
What is wind quizlet?
A wind is the horizontal movement of air from an area of high pressure to an area of lower pressure.
Why are friction layer surface winds different from upper atmosphere geostrophic winds?
How and why are friction layer (surface) winds different from upper-atmosphere geostrophic winds? Geostrophic winds flow parallel to the isobars. Friction layer winds cross the isobars at angles between 0 and 90 degrees. In the upper atmosphere gas molecules do not come into contacts as frequent.
Do gases in the stratosphere protect living organisms from solar radiation?
Higher up, in the stratosphere, the ozone layer absorbs solar ultra-violet radiation and affects how much of the Sun's heat is radiated back into space. The ozone layer shields us from the harmful effects of excessive UV radiation, which can lead to sunburn, skin cancer and eye damage.
What are cool facts about Mercury?
Cool Mercury Facts
- Mercury is the closest planet to the Sun. …
- Mercury is also the smallest planet in the Solar System. …
- Not only is Mercury the smallest planet, it is also shrinking! …
- Mercury has the most craters in the Solar System. …
- The biggest crater in Mercury could fit Western Europe.
Is mercury hot or cold?
It is understood that the sunny side may reach temperatures of 750 to 800 degrees F., while the nighttime temperature plummets to nearly -330 degrees F. The average temperature on Mercury is a balmy 354 degrees F.
How do you explain Mercury to a child?
Mercury is the smallest planet in our solar system. It's just a little bigger than Earth's moon. It is the closest planet to the sun, but it's actually not the hottest….Structure and Surface
- Mercury is the smallest planet in our solar system.
- Mercury is a terrestrial planet. …
- Mercury doesn't really have an atmosphere.
Why does Mercury have so little gas in its atmosphere?
Mercury has almost no atmosphere. The planet's small size means that its gravity is too weak to hold down a normal atmosphere. … Mercury's thin atmosphere is constantly being “blown away” into space by the pressure of sunlight and by the solar wind. Gases are constantly being added to Mercury's atmosphere too.
Why does Mercury not have an atmosphere?
There are two main reasons. First, Mercury is small and doesn't have much gravity so it's hard to hold onto an atmosphere. Second, Mercury is close to the Sun so any atmosphere gets blasted away by stuff being blown off the Sun.
What is photometry Fujifilm?
Choose how the camera measures the brightness of the subject. (MULTI) The camera instantly determines exposure based on an analysis of composition, color, and brightness distribution. Recommended in most situations.
What is CCD photometer?
Photometry and CCDs Photometry is a technique that measures the brightness of a star in an image. Each pixel on a CCD will have had a certain number of photons fall on it during an exposure. This number of photons translates to a number of electrons that are stored in the CCD until it is read out.