Moon 3d Object Download |BEST|

A moon is an object that orbits a planet or something else that is not a star. Besides planets, moons can circle dwarf planets, large asteroids, and other bodies. Objects that orbit other objects are also called satellites, so moons are sometimes called natural satellites. People have launched many artificial satellites into orbit around Earth, but these are not considered moons.

The planet or body that a moon orbits is called its primary. Just as gravity holds the planets in our solar system in orbit around the sun, gravity also keeps moons in orbit around their primaries.

Many moons formed at the same time as their primary. Gravity pulled bits of dust and gas together into larger and larger clumps of material. Eventually, the smaller clump of material (moon) began orbiting the larger clump (primary).

Some moons formed in other ways. Earth's moon may have formed when an object the size of Mars crashed into the planet. The collision sprayed a huge amount of material into orbit around Earth. This material slowly accumulated into one large body, our moon. Other moons in our solar system were once asteroids, chunks of rock that are too small to be planets. These asteroids came too close to their primary and were pulled into orbit by the force of gravity.

Most moons are made of rock, but many also contain a large amount of ice, gas, and other chemicals. Europa, a large moon orbiting Jupiter, has an icy surface that may cover a liquid oceanof water.

Some moons have volcanic or geologic activity. For example, scientists have observed volcanic plumes rising 300 kilometers (190 miles) from the surface of Io, another one of Jupiters moons. Other moons, including Earth's moon, show little or no signs of geologic activity, though they may have been more active in the past.

As of 2010, astronomers had discovered 166 moons circling planets in our solar system. Ninety-nine of these have been discovered since 2000. Jupiter has the most known moons, with 63. Saturn has 60 named moons, Uranus has 27, and Neptune has 13. Mars has just two, and Earth has only one. Venus and Mercury have no moons.

Another six moons in our solar system circle dwarf planets. Dwarf planets are planetlike objects that do not fit the full definition of a planet. Pluto is the most famous dwarf planet. Pluto has three moons. Many other moons in our solar system orbit smaller bodies. Because moons are relatively small, none have yet been discovered outside the solar system, but there are likely trillions of moons throughout the universe.

Man in the Moon

The surface of Earth's moon is pockmarked with millions of craters left when asteroids and other space rocks crashed into its surface over millions of years. Sometimes, from Earth, the pattern of craters looks like a face peering down.

Moon 3d Object Download

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Supermoon

The largest moon in the solar system is Ganymede, which orbits Jupiter. Its diameter, or maximum distance across, is 5,262 kilometers (3,270 miles), larger than the planet Mercury. In 1610, Italian astronomer Galileo Galilei discovered Ganymede and three other planet-size moons circling Jupiter. They were the first moons discovered orbiting a planet other than Earth.

My level 17 party is about to face Orcus. They have 4 full casters including a wizard who learned True Polymorph and picked up sublte spell with metamagic adept. They are planning to ready actions to teleport to the moon, true polymorph it into a turtle using suble spell since they have no air to speak, have the sorcerer subtle spell plane shift to the demon lord's lair, then plane shift out leaving the moon turtle behind and drop concentration so it turns into a moon in Orcus' lair.

I kinda want to see this play out but have no idea how this would work being breifly in space even though they do have suble spell to get around no air for verbal components of spells. Also, what effects would a moon suddenly appearing in a demon lord's lair cause and what effects would there be from the world on the material plain no longer having a moon?

Edit: thanks for all the great videos and advice on the lore/physics. Good call on having it require a ritual and not be something that can be easily abused for other things. Party is currently on a quest to find another magguffin for amplifying true polymorph to go along with the muggufin they got for getting past the demon lord's defences to break into the Abyss. I've got a table to roll on with some various encounters depending on where they teleport on the moon, but otherwise no one there who they'd feel terrible about outright killing from dumping in space. The god of the moon is going to have the same reaction as some of you saying this is such a nonsensical idea it could never work and not even bother directly trying to stop them. The moon turtle is just going to be buffed up to the hp of a cr 9 creature so it can survive breifly in space if they get to it fast enough. They definitely will have many people, pretty much every druid circle and coastal nation, and at least one god angry at them when/if they return. They will have a lot of high checks/saves to pass to pull this off and can't do it all in one move since they'll need all of them for the ritual and an additional teleport with subtle spell to get to the moon turtle now at the center of where the moon was before using plane shift to Orcus' domain.

The moon is actually quite dim, compared to other astronomical bodies. The moon only seems bright in the night sky because it is so close to the earth and because the trees, houses, and fields around you are so dark at night. In fact, the moon is one of the least reflective objects in the solar system. The DSCOVER spacecraft captured this single photograph of the moon and the earth. Both the earth and the moon are illuminated by the same amount of sunlight coming from the same angle in this photo. As you can see in this photo, the earth is much brighter than the moon.

In general, we can see objects because they direct light into our eyes (or into cameras which record information that is later used by display screens to direct light into our eyes). There are two main ways that an object can direct light into our eyes. Either the object creates new light or it reflects light that already existed. Objects that create light tend to also reflect ambient light, so that they tend to be the brightest objects around. Examples include campfires, light bulbs, candle flames, and computer screens. In terms of astronomical bodies, stars are the main objects that create significant amounts of visible light, and therefore are some of the brightest objects in the universe. In contrast, planets and moons do not generate their own visible light*. If a planet somehow became large enough to initiate nuclear fusion and begin glowing, it would no longer be a planet. It would be a star.

Since planets and moons do not emit light, the only reason we can see them is because they reflect light from some other source. The strongest source of light in our solar system is the sun, so usually we see planets and moons because they are reflecting sunlight. The amount of sunlight incident on a moon or planet that gets reflected depends on the materials in its surface and atmosphere as well as its surface roughness. Snow, rough ice, and clouds are highly reflective. Most types of rock are not. Therefore, a planet that is covered with clouds, such as Earth or Venus, is generally brighter than a rocky moon or planet that has no atmosphere.

There are two main types of reflectivity: specular reflectivity and diffuse reflectivity. Specular reflectivity measures how much of the incoming light gets reflected by the object in the direction given by the mirror angle. In contrast, diffuse reflectivity measures how much light gets reflected in all directions. A mirror has high specular reflectivity and low diffuse reflectivity. In contrast, sand has low specular reflectivity and high diffuse reflectivity. In everyday life, we experience specular reflectivity as the perception of mirror images and glare spots on the surface of objects. We experience diffuse reflectivity as a somewhat uniform brightness and color that exists on the surface of the object and is roughly the same no matter what our viewing angle is. Many objects display significant amounts of both specular reflectivity and diffuse reflectivity. For instance, a red polished sports car looks red from all angles because of its diffuse reflectivity, while at the same time displays bright spots of glare because of its specular reflectivity. In general, roughening a surface tends to increase its diffuse reflectivity and decrease its specular reflectivity. This is true because a rough surface has many little reflecting planes all oriented differently which scatter light in many different directions. In fact, the easiest way to turn a strong specular reflector into a strong diffuse reflector is to roughen it up. For instance, take a smooth sheet of ice and scratch it up. You turn a surface that is bright only in the mirror direction of the light source into a surface that bright in all directions.

When it comes to planets and moons, the surface roughness is quite high. For this reason, their overall brightness is best described by their diffuse reflectivity. There are several ways to define and measure the diffuse reflectivity. In the context of planets and moons, the common and perhaps most useful way is to define it in terms of "bond albedo". The bond albedo is the average amount of total light scattered by the body in any direction, relative to the total amount of light that is incident. A bond albedo of 0% represents a perfectly black object and a bond albedo of 100% represents an object that scatters all of the light. The earth has a bond albedo of 31%. In contrast, the moon has a bond albedo of 12%. To bring this closer to home, the moon has the same bond albedo as old asphalt, such as is found in roads and parking lots. The bond albedo of major objects in our solar system are listed below as reported in the textbook Fundamental Planetary Science: Physics, Chemistry, and Habitability by Jack K. Lissauer and Imke de Pater. ff782bc1db