Planets are visible (and look like stars, without the help of telescopes) almost all year, until their orbits carry them in line with the Sun. Which planets we can see depend mostly on what time of night we are looking, and where the planets are in the solar system on that night. Mercury is difficult to see because it is always very close to the Sun and orbits very quickly. Lucky for us, the orbits of the planets are very regular and predictable, so we can predict which ones are visible on which night, and where we can find them in the patterns of stars. Planetariums and orreries are very effective at modeling and displaying these patterns. Now that computer programs are becoming more accurate, prettier, and more frequently FREE, we can watch very detailed models of the night sky, and some of them even act like telescopes or space ships and let us get a very up-close look at the planets and other stellar objects. Plus all the pictures that have come from really cool telescopes like the Hubble, and are also available as free downloads.
planets appear to move
The celestial objects that appear to move backwards among the stars are planets in our solar system. This phenomenon is called retrograde motion and is an apparent backward motion that occurs when Earth passes by these planets in their orbits.
Planets orbit stars.
The movement of planets across the sky differs from that of stars primarily due to their relative positions and motions within our solar system. While stars appear to move in fixed constellations due to the Earth's rotation, planets exhibit retrograde and direct motion as they orbit the Sun at varying distances and speeds. This results in planets changing position against the backdrop of stars over days or weeks, while stars maintain their relative positions over much longer periods. Additionally, planets can sometimes appear to brighten and dim, a phenomenon not observed in stars.
Stars are usually much farther away from us than planets, so they appear as points of light due to their vast distance. Planets are relatively close to Earth in comparison and have a visible circular shape since they reflect the light from the Sun, making them appear as discs in the night sky.
planets appear to move
Planets appear to move through the background of stars because they orbit the Sun at different speeds. As the Earth and other planets move in their orbits, their positions relative to the background stars change, causing them to appear to move across the sky. This is known as planetary motion.
because they're way closer than the stars
Planets appear brighter than stars because they reflect more sunlight and have larger apparent sizes in the night sky compared to distant stars. Stars emit light due to nuclear fusion in their cores, while planets reflect light from the Sun, making them appear brighter to us on Earth.
the planets orbit the Sun at varying speeds, causing them to appear to move against the fixed backdrop of stars as seen from Earth. This apparent motion is due to the Earth's own movement around the Sun, which creates the illusion of planets traversing the sky over time.
The celestial objects that appear to move backwards among the stars are planets in our solar system. This phenomenon is called retrograde motion and is an apparent backward motion that occurs when Earth passes by these planets in their orbits.
Sunspots, as the name suggests, appear on the Sun or on stars - not on planets.
They appear to move on a great hollow sphere
Because the Earth and all the planets move in orbits round the Sun, while the stars appear to be fixed if we disregard the Earth's daily rotation.
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.
Well, because they are so far away, they appear to be the same shape and colour as a star because they are so far away you cannot work out the details on the planet, in comparison to a star. Hope I've helped??
Planets orbit stars.