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Why must astronomers use sateltiles and earth orbiting observations to study the heavens at x-ray wavelengths?
Electromagnetic radiation with wavelength shorter than ultraviolet -- including x-rays -- is strongly absorbed by earth's atmosphere. X-ray detectors looking into space from the surface of the earth don't see anything, because no x-rays reach the surface ... the main reason that all life on earth has not been broiled yet by E&M radiation from space.
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Why do astronomers hypothesize that there is a supermassive black hole at the center of the milky way?
Astronomers hypothesize the presence of a supermassive black hole at the center of the Milky Way because of the high velocities exhibited by stars orbiting the region and the intense radiation emitted, which is characteristic of black hole activity. Additionally, observations of other galaxies suggest that supermassive black holes are common in galactic centers.
What is made up of 6 huge slabs?
An asteroid has been observed by astronomers to be composed of six massive slabs of materials orbiting in space.
How did astronomers deduced that star called 51 Pegasi has a planet revolving around it?
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.
Descoveries and observations from galilei Galileo?
Well, Some of the astronomical things that he observed are: the phases of Venus. the craters on the Moon .Jupiter's orbiting moons
Who did the idea of the sun in the middle of the solar system with planets orbiting around it originate from?
The heliocentric model, which posits the sun at the center of the solar system with planets orbiting around it, originated with ancient Greek philosopher Aristarchus of Samos in the 3rd century BCE. However, it was not widely accepted until the early 16th century when Nicolaus Copernicus revived and expanded upon the concept in his work "De revolutionibus orbium coelestium." This model eventually gained support through the observations of astronomers like Galileo Galilei and Johannes Kepler.
Why must astronomers use satellites and Earth orbiting observatories?
Astronomers use satellites and Earth-orbiting observatories to avoid the distortion and absorption of light caused by Earth's atmosphere, which can limit the clarity and detail of astronomical observations. These platforms also provide a stable environment for instruments that can detect various wavelengths of electromagnetic radiation, including ultraviolet, X-rays, and infrared, which are often blocked by the atmosphere. Additionally, they allow for continuous observation of celestial objects without the interruptions caused by day-night cycles and weather conditions on Earth. Overall, these advantages enable more precise and comprehensive studies of the universe.
What methods did astronomers use to study the entire surface of the moon?
Orbiting satellites.
Why do astronomers hypothesize that there is a supermassive black hole at the center of the milky way?
Astronomers hypothesize the presence of a supermassive black hole at the center of the Milky Way because of the high velocities exhibited by stars orbiting the region and the intense radiation emitted, which is characteristic of black hole activity. Additionally, observations of other galaxies suggest that supermassive black holes are common in galactic centers.
What is made up of 6 huge slabs?
An asteroid has been observed by astronomers to be composed of six massive slabs of materials orbiting in space.
How did astronomers deduced that star called 51 Pegasi has a planet revolving around it?
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.
Descoveries and observations from galilei Galileo?
Well, Some of the astronomical things that he observed are: the phases of Venus. the craters on the Moon .Jupiter's orbiting moons
What do astronomers think about the possibility of planets orbiting other stars and being detected?
Astronomers believe that planets orbiting other stars, known as exoplanets, are common in the universe. They have been detected using various methods such as the transit method and radial velocity method. The discovery of exoplanets has greatly expanded our understanding of planetary systems beyond our own.
Who did the idea of the sun in the middle of the solar system with planets orbiting around it originate from?
The heliocentric model, which posits the sun at the center of the solar system with planets orbiting around it, originated with ancient Greek philosopher Aristarchus of Samos in the 3rd century BCE. However, it was not widely accepted until the early 16th century when Nicolaus Copernicus revived and expanded upon the concept in his work "De revolutionibus orbium coelestium." This model eventually gained support through the observations of astronomers like Galileo Galilei and Johannes Kepler.
Why do astronomers hypothesize that a massive black hole lies at the center of M 87?
Astronomers hypothesize that a massive black hole lies at the center of M87 because of the high speeds of stars orbiting the center, which indicate a very massive object. Observations also show a jet of energetic particles emanating from the center, which is commonly associated with supermassive black holes. Additionally, the size of the dark central region in M87 matches what is expected for a black hole event horizon.
Why can't astronomers use telescopes to study the entire surface of the moon?
It is because that the same side of the moon is always facing us. It is only possible to see the other side of the moon by orbiting it.
What have astronomers discovered by measuring small gravitational wobbles in stars?
Astronomers have discovered exoplanets orbiting stars by measuring the small gravitational wobbles in the motion of the stars. These wobbles indicate the presence of an orbiting planet pulling on the star with its gravity, causing it to move slightly. This method, known as the radial velocity technique, has been crucial in detecting numerous exoplanets outside our solar system.
Does Procyon have exoplanets?
As of now, there have been no confirmed reports of exoplanets orbiting Procyon. However, it is possible that there may be undetected exoplanets around this star waiting to be discovered through further observations.
