Mercury, Venus, Mars, Jupiter, and Saturn are visible from Earth without a telescope. At certain times, for those with excellent vision, Uranus is visible. Some planets are best viewed just before dawn.
The planet that you are most likely able to see in your night sky with no telescope is Jupiter. Jupiter may appear to look like the moon.
It would have to be Io, Titan, and Europa. These are moons though, not planets.
a straight line we would fly around endlessly in space forever === === We are fortunate that this is not a very likely event. It is also not likely that all the planets will follow straight lines forever. The planetary paths would depend on their orientations at the time of the sudden gravitation-vacuation. The planets do exert some gravitational influence over one another. Also, the planets are traveling at different velocities in their orbits. It is not impossible that some of the planets might end up on a collision course with other planets, or even in orbit around the giants Saturn, Jupiter, Neptune or Uranus, our large planetary cousins.
Not all the planets orbit the sun - other stars have planets too. But all the planets in our solar system, which is the system of our sun, revolve around the sun; otherwise they would be in other solar systems. All the planets we can see with our naked eye orbit the sun, since the planets orbiting the sun are the only ones close enough to earth to see without a telescope.
Depending on your location and time, it would vary. From Northern latitudes it's more than likely Saturn and Jupiter. First is Pluto then Neptune
That applies mainly to the inner planets: Mercury and Venus. Mars, being further from the Sun than Earth, can at most have a "three-quarter" phase, but you can't see it as a crescent, since that would require Mars to be basically between the Sun and Earth, which isn't possible. Saturn shows no phases.
You can see the six ancient planets without a telescope when they are visible, and in theory you can also see Uranus in perfect conditions. Neptune needs a moderate-sized telescope like a 3" refractor.
a telescope because if you never heard of the Hubble telescope that is like the international telescope.
To measure pressure in the air. Meteorologists use them (weather people) a barometer is used for measuring pressure,the units for measuring pressure include atm,pascal,torr,mm of hg,bars.
Things can actually be larger or smaller than they look depending on their distance from you. On this website, if the planets were listed as the same size, they appear different sizes from a telescope because they are different distances from Earth.
look through a telescope at night
Saturn is one of five planets that you can see in the night sky without a telescope. The others are Mercury, Venus, Mars, and Jupiter. Anyone who spent a good deal of time watching the night sky would realize that these objects moved relative to the background of stars.
An Astronomer
Yes. You are able to see Jupiter with a telescope from Earth at certain points in the year.
a hubble space telescope
When you observe through a telescope at night, so wherever you would do that.
There are only five planets which can be observed by common telescopes. The astronomical telescopes are normally installed and owned by governments and large research institutes. Mount Wilson observatory has reflective telescope with 100inch mirror. For non-professional, who wishes to study moon telescope with 3 inches aperture is good enough but to to study Saturn and Jupiter one would need nearly 10inch aperture telescope..
Out doors, at night. The darker the sky (the further away from city lights) the better.