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Which solar system has 62 moons?
There is only one Solar System; it is the star system with the star named Sol (our solar system). It is technically incorrect to refer to any other star system as 'a solar system.' Our star system is is also the only star system we know intimately enough (in fine enough detail) to know to have moons. It is not currently possible for us to detect moons orbiting extrasolar planets (planets orbiting other stars). There are 336 objects classified as moons in the Solar System.
Why is it difficult to take pictures of extrasolar planets?
To get a direct image of a planet, we need to gather the light it is reflecting. Planets in our own solar system are much closer and thus, they appear bigger - and they can often be found far enough away from where the Sun appears to be, so that the Sun's light doesn't affect the imaging effort.However, when a star is many light years away, and a planet is around it, it will appear very, very close to its parent star - which is essentially blinding it out.Imaging trying to gather the light reflected off a grain of sand which is sitting next to a large flashlight shining in your face.
How is the Doppler Effect used to detect invisible planets?
As a planet revolves around a star, it actually wiggles the star a bit (the bigger the planet, the more it wiggles the star). This causes the star to be moving towards as a bit, then away from us a bit (and repeat forever). As a star moves away from us, the Doppler effect (also known as a redshift) makes the star appear a little redder and as a star moves towards us, it appears a little bluer. If we see a star, getting a little bluer, then a little redder, then a little bluer again and so on, you know that the star is wiggling, and that would only be caused if the star has something in its orbit, like a planet. So even though we can't see the planet, we know it is there.
In which constellation will you find the bright star?
There are several bright stars. Planets move around the Ecliptic, covering 13 constellations or so. Note that planets look like stars, but are not currently considered stars. Also note that some of the planets look brighter (to us) than any real star. Other than planets, the brightest stars are the Sun (also changes through the constellations of the Ecliptic), Sirius (Canis Major), Canopus (Carina), and Toliman (Centaurus).
How do you know which stars have planets?
What an excellent question. It appears you already realize that if you are talking about stars other than our sun, you are talking about stars that are many lightyears away from us, and not even powerful telescopes will easily detect planets orbiting around them. One thing that astronomers can sometimes detect is the slight wobble of distant stars as planets orbit around them. You might not realize that suns would move as a result of a planet's orbit. Imagine you and a friend holding on to the ends of a rope. If you begin to move in a circle, you will each feel the centripedal force pushing you outward. Neither of you would be able to stand perfectly still while the other circled with the rope. Another thing that astronomers can detect using very sensitive equipment is the slight reduction in brightness of a star when a planet's orbit brings the planet between us and its star. If this reduction in brightness is regular enough, it may be an indication that there is a planet in orbit.
What orbits a star and reflects the stars light?
Many planets around each star reflect the star's light. For example think about Earth's orbit around the sun, a big star
How do you know that stars have planets?
In a very few recent cases we have directly observed the planets. Most exoplanets (planets orbiting other stars) are detected through periodic wobbles in the light of the star as the planet makes its way around. That may change this month with the launch of the Kepler satellite later today. The third way to detect planets is by their transits. If the distant planet crosses in front of the star and us, the star light dims in a characteristic manner. Kepler will observe thousands and thousands of stars for transits.
Spectrographs help astronomers determine a star's what?
The star's chemical composition; the star's rotation; pulsations of the star; planets or other invisible objects moving around the star; how quickly the star is moving towards us or away from us.
Which solar system has 62 moons?
There is only one Solar System; it is the star system with the star named Sol (our solar system). It is technically incorrect to refer to any other star system as 'a solar system.' Our star system is is also the only star system we know intimately enough (in fine enough detail) to know to have moons. It is not currently possible for us to detect moons orbiting extrasolar planets (planets orbiting other stars). There are 336 objects classified as moons in the Solar System.
What can you tell from a star by observing it?
It's locationIt's colourIt's temperatureIt's spectral classIt's luminosityIt's distance from us, using standard candles.It's sizeIf it has any planets orbiting it (Within a reasonable distance)
What keeps us from floating off into the sky and keeps the planets in orbit around the sun?
Gravity is the force that keeps us grounded on Earth and planets in orbit around the sun. Gravity is a pulling force that attracts objects with mass towards each other. In the case of planets orbiting the sun, the gravitational force from the sun keeps them in their respective orbits.
Is all the stars in the sky planets?
No, they are very much like our own star which we call the sun. They are so far away that they do not provide us with light and heat like our own star, the sun. The only planets you can see from earth with the naked eye are our own planets which, like us, revolve around the sun.
What percent of stars in the universe have planets orbiting around them?
Well, isn't that a fascinating thought! Every time we look up at the night sky, we're reminded of the incredible variety in the universe. Scientists estimate that around 70-80% of stars in the universe have planets orbiting around them, sparking new worlds for us to explore and appreciate. Isn't that just delightful?
Which planet has the most planets orbiting it?
In our solar system, the dwarf planets Pluto and Charon orbit each other around a common center of gravity located in the empty space between them. As the only binary planets in our solar system, that makes Pluto and Charon share the title as having the most planets orbiting another planet. Planet like objects that orbit planets, without them orbiting each other, are called moons. The title for the planet with most moons, is passed back and forth between Jupiter and Saturn, as new (to us) and ever smaller moons are discovered. Currently, Jupiter holds the title with 63 moons.
Why is it difficult to take pictures of extrasolar planets?
To get a direct image of a planet, we need to gather the light it is reflecting. Planets in our own solar system are much closer and thus, they appear bigger - and they can often be found far enough away from where the Sun appears to be, so that the Sun's light doesn't affect the imaging effort.However, when a star is many light years away, and a planet is around it, it will appear very, very close to its parent star - which is essentially blinding it out.Imaging trying to gather the light reflected off a grain of sand which is sitting next to a large flashlight shining in your face.
Why do the positions of the planets change in relation to the background of stars?
The positions of the planets change in relation to the background stars due to their orbits around the Sun. As the planets move along their orbit at different speeds, their position relative to the background stars appears to change from our perspective on Earth. This phenomenon is known as planetary motion and is a result of the planets' orbital dynamics.
What goes around the house and in the house but never touches?
The Sun and Moon and thus any other spacial object either orbiting us or we are orbiting it.
