Q&A for How to Tell the Difference Between Planets and Stars

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  • Question
    Why do the planets appear brighter then the stars?
    Community Answer
    The planets are much closer to Earth than stars, so they are brighter. Stars can be billions or trillions of times farther away.
  • Question
    Do planets glow brighter than stars?
    Community Answer
    Sometimes planets are often seen much brighter than stars. The easiest way to discern one from the other is planets don't 'twinkle,' while stars do.
  • Question
    How do I identify Venus?
    Community Answer
    You can see it during the morning, and look for a very bright white non-twinkling object at night.
  • Question
    Is the moon a star or a planet?
    Community Answer
    Neither. It is a natural satellite, or an astronomical body that orbits a planet. Many planets have moons. In terms of its physical composition, it is like a planet, not like a star. But it doesn't fit the usual criteria for a planet, mainly because it orbits a planet rather than a star.
  • Question
    How can I find Neptune easily?
    Community Answer
    Neptune is not visible with the naked eye. You will need a telescope to see this planet. Consult a planetary guide to find its location in the night sky.
  • Question
    Are comets stars or planets?
    Community Answer
    Comets are neither planets nor stars. They are blocks of ice traveling in space.
  • Question
    Will stars move in the sky?
    Community Answer
    Yes, stars do appear to move around in our night sky. However, unlike planets, they do not move in a straight line. Instead, they appear to rotate (very slowly) around Polaris, the North Star. That appearance is mainly caused by the Earth's rotation around its own axis.
  • Question
    How do I find shooting stars and comets?
    Community Answer
    Shooting stars are easiest seen during meteor showers, the dates of which can be looked up online. Be sure to go to a dark place and be prepared to wait a while!
  • Question
    What organization should I contact to help me identify a planet?
    Community Answer
    I don't think there are any organizations you can contact to identify any planets in our solar system, although there are internet resources that you can use, such as Stellarium.
  • Question
    How I can see a planet without a telescope?
    Community Answer
    Look at the sky, using your eyes. It is really not that hard. You can see most planets without a telescope. Look for a map of the planets in the night sky online.
  • Question
    How do I distinguish a planet from a satellite?
    Community Answer
    Invest time in sky watching and you'll see that planets move slower than satellites.
  • Question
    What can cause it to seem like the stars are moving?
    Community Answer
    It's the rotation of the Earth that make them seem like they are all moving.
  • Question
    How can we differentiate between planets and stars if we are in space, say low Earth orbit?
    Donagan
    Top Answerer
    Even if you're outside our atmosphere, the planets will usually appear brighter than the stars due to their relative proximity to us (and to the sun).
  • Question
    Where in the sky would someone living in the Southern Hemisphere look to find Venus?
    Donagan
    Top Answerer
    In either hemisphere, Venus can often (but not always) be seen near the horizon just before sunrise or just after sunset. Look at the horizon near where the Sun is about to rise or has just set.
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