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How do radio waves help astronomers?
They are simply one more way to observe distant objects and events.
Why do astronomers find it difficult to locate extrasolar planets with telephones?
Astronomers cannot locate extrasolar planets with telescopes because these planets are outside of our solar system and too far away for telescopes to directly observe. Instead, astronomers use indirect methods such as radial velocity and transit techniques to detect these distant planets.
When astronomers study distant galaxies they notice changes to the waves they observe describe the change to the waves they observe?
Because the universe as a whole is expanding, distant galaxies are moving away from us. As a result, electromagnetic waves emitted by those galaxies experience what is known as a red shift. Their wavelengths get longer.
What doesnt stand in the way of astronomers getting good a view of the distant stars?
Several factors hinder astronomers from getting a clear view of distant stars, including atmospheric interference, light pollution, and the vast distances involved. The Earth's atmosphere can distort light from stars, while urban areas can create excessive background light, obscuring celestial objects. Additionally, cosmic dust and gas can absorb and scatter light, making distant stars harder to observe. Despite these challenges, advancements in telescope technology and techniques help improve observations.
Reasons why astronomers have difficulty looking at distant stars except?
Light years of dust lanes obscure the view of distant stars in visible light. However, radio telescopes can penetrate the dust and can detect (in the x-ray and infrared spectra) the stars in the core of our galaxy.They don't understand how redshift affects stars.
Astronomers use instruments to observe the universe What instruments is used to observe distant stars?
Astronomers primarily use telescopes to observe distant stars. These can be optical telescopes, which capture visible light, or radio telescopes that detect radio waves emitted by celestial objects. Additionally, space-based observatories like the Hubble Space Telescope provide clearer views by avoiding Earth's atmosphere, while instruments like spectrometers analyze the light from stars to determine their composition, temperature, and motion.
Which forms of electromagnetic radiation can interfere with the work of astronomers?
Light pollution from urban areas and artificial sources like street lights can interfere with astronomers' ability to observe celestial objects clearly. Additionally, radio waves from telecommunications and other sources can disrupt radio telescopes that astronomers use to study the universe.
What does the Astronomers use to observe the sky?
a stethoscope
Which planet rings were discovered in 1977 when the planet occulted a distant star?
The rings of Uranus were discovered in 1977 when the planet occulted a distant star. This event allowed astronomers to observe a series of fading and brightening of the star's light, indicating the presence of rings around Uranus.
Where do astronomers look at the sky from?
Astronomers observe the sky from various locations, including ground-based observatories situated in remote areas with minimal light pollution, such as mountaintops or deserts. They also utilize space telescopes, like the Hubble Space Telescope, which orbit above the Earth's atmosphere to avoid atmospheric distortion and pollution. These diverse locations allow astronomers to gather clearer and more detailed data about celestial objects.
How do astronomers observe the spiral of the milky way?
by eyes
What Advantage and disadvantage of telescope?
One advantage of telescopes is their ability to magnify distant celestial objects, allowing astronomers to observe details that are not visible to the naked eye, thus enhancing our understanding of the universe. A disadvantage, however, is that telescopes can be expensive and require significant maintenance, as well as ideal observing conditions, such as clear skies and low light pollution, to produce the best results.
