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How did astronomers deduced that star called 51 Pegasi has a planet revolving around it?

Anonymous

∙ 15y ago

Updated: 6/3/2024

The star they were observing, 51 Pegasi, moved back and forth only very slightly. Therefore, they knew the invisible object could not have enough mass to be a star. They deduced that it must be a planet.

Wiki User

∙ 15y ago

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Astronomers detected a wobble in the star's spectrum, indicating a gravitational tug from an orbiting object. By observing the star's periodic Doppler shifts, they inferred the presence of a companion planet, which was later confirmed through additional observations. This discovery of 51 Pegasi b in 1995 was a breakthrough in exoplanet research, marking the first detection of a planet orbiting a Sun-like star.

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∙ 9mo ago

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Q: How did astronomers deduced that star called 51 Pegasi has a planet revolving around it?

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Continue Learning about Natural Sciences

Pegasi has a planet revolving around it?

Yes, the planet is called Bellerophon. See link for more details.

What do you call a frozen ball of dust and gas revolving around the sun?

A frozen ball of dust and gas revolving around the sun is called a comet. Comets often develop a visible coma (a glowing head) and a tail when they approach the sun and release gases and dust particles due to solar radiation.

What is formed as a ball of hot gases revolving around the Sun?

A planet is formed out of hot gases revolving around the Sun.

Is it possible to stop the electrons revolving around the nucleus?

No, it is not possible to stop the electrons from revolving around the nucleus unless they are stripped off from the nucleus.

Why do you describe the moon is revolving around earth?

The moon is caught in Earth's gravitational pull and the Earth spins on its axis and it is as though the moon is revolving around it

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