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Neptune
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What planet did astronomers predict its existence by observing the effects of gravity?
Neptune was predicted by astronomers be observing the effects of its gravity. Neptune was discovered in 1846 by Johann Gottfried Galle.
How can astronomers detect a binary star if only one of the two stars is visible from earth?
Astronomers can detect a binary star system, where only one star is visible, by observing the gravitational effects of the unseen companion on the visible star. They can analyze the visible star's motion, such as its changes in velocity or position, which may indicate that it is being influenced by the gravity of the hidden star. Additionally, variations in the visible star's brightness or spectral lines can provide clues about its companion's presence. Techniques like radial velocity measurements and astrometry help confirm the existence of the unseen binary partner.
What time was Neptune found?
September 23, 1846. It was discovered by mathematical prediction by Johann Galle, meaning that's it's whereabouts was predicted through gravitational effects of other planets.
How can the mass of a black hole can be measured?
The mass of a black hole can be measured by observing the orbits of objects around it, such as stars or gas clouds. By studying the gravitational effects of the black hole on these objects, astronomers can calculate its mass. Another method is to measure the distortion of light from objects behind the black hole, known as gravitational lensing, which can provide information about the black hole's mass.
What evidence led scientists to believe Neptune existed before they ever saw it?
Unexpected changes in the orbit of Uranus led astronomers to believe that there was another planet affecting its orbit. Detailed studies of Uranus's orbit allowed them to predict its existence and location.
What planet did astronomers predict its existence by observing the effects of gravity?
Neptune was predicted by astronomers be observing the effects of its gravity. Neptune was discovered in 1846 by Johann Gottfried Galle.
How did Adams and Leverrier both predict the position of Neptune based on its effects on celestial bodies?
Adams and Leverrier predicted the position of Neptune by observing the gravitational effects it had on other celestial bodies, such as Uranus. They used mathematical calculations to determine where Neptune should be located in order to explain these observed effects.
How do astronomers discover black holes in the universe?
Astronomers discover black holes in the universe by observing the effects they have on nearby objects, such as stars and gas. They use telescopes to detect X-rays and other forms of radiation emitted by black holes, as well as studying the gravitational influence they have on surrounding matter.
How do astronomers know that invisible stars exist?
By their gravitational effects.
What time was Neptune found?
September 23, 1846. It was discovered by mathematical prediction by Johann Galle, meaning that's it's whereabouts was predicted through gravitational effects of other planets.
What did Adams and Leverrier predict the position of Neptune based on its effects on?
Adams and Leverrier predicted the position of Neptune based on its effects on the orbit of Uranus.
In a scientific experiment the is the thing the experimenter deliberately changes while observing?
The independent variable is the thing the experimenter deliberately changes while observing the effects on the dependent variable.
How can the mass of a black hole can be measured?
The mass of a black hole can be measured by observing the orbits of objects around it, such as stars or gas clouds. By studying the gravitational effects of the black hole on these objects, astronomers can calculate its mass. Another method is to measure the distortion of light from objects behind the black hole, known as gravitational lensing, which can provide information about the black hole's mass.
What evidence led scientists to believe Neptune existed before they ever saw it?
Unexpected changes in the orbit of Uranus led astronomers to believe that there was another planet affecting its orbit. Detailed studies of Uranus's orbit allowed them to predict its existence and location.
How do astronomers search for black holes and what are the challenges of learning about them?
There are two ways of finding black holes. They can look for the effects that their gravity has on nearby objects and they can look for X-rays emitted by matter about to fall into them. A major challenge is that black holes themselves do not emit any light, making them impossible to detect directly.
What did Adam smith predict would be the effects of a free enterprise?
As Smith had predicted,the countries with free enterprise systems grew rich and powerful.
How can you tell if there is a black hole?
Astronomers look for black holes by searching for their effects (the hole itself by definition can't be seen). Some of the possible effects are gravitational lensing and electromagnetic radiation from the hole's accretion disk.
