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The distance is the largest factor, since "normal" optical magnification cannot be used for objects much beyond the solar system. The other concurrent problems are interstellar dust and gas, interference from other luminous bodies, and having to use expensive and complex space-based telescopes.
The light from objects outside our galaxy was actually given off many millions of years ago, so we see images of their distant past.
Factors that limit astronomical observations:
- The atmosphere of the Earth, with its clouds, heat shimmer and of course manmade light pollution, obscures an optical view of dimmer stars. The farther away they are, the smaller the fraction of their light that reaches Earth.
- Radio astronomy, which detects electromagnetic emissions other than visible light, is complicated by Earthbound interference and by emissions from other stars along the same path.
- Another limitation is availability of equipment, even with the greater number of Earth-based telescopes and the latest orbital satellites. New technology is expensive and in great demand.
Wiki User
∙ 6y ago
Wiki User
∙ 11y agoTurbulence in the atmosphere causes an apparent twinkling of stars as seen by the observer. When photographed this twinkling makes the start appear out of focus.
If an astronomer is not observing in visible light again the atmosphere can get in the way. If observing in the infra-red moisture [water] in the atmosphere absorbs infra-red making it impossible to observe at these wavelengths unless the observatory is located high above sea level.
Wiki User
∙ 13y agoOur Atmosphere has turbulence due to thermal effects, and these disturb the image. The twinkling of the stars is due to this.
Wiki User
∙ 13y agoAir pollution and light pollutions distort the images. Also cloud cover gets in the way.
Wiki User
∙ 10y agoWe receive only a small amount of their light.
Wiki User
∙ 10y agoAstronomers have difficulty looking at distant stars because they are just so far away. They use special telescopes but they can't see everything.
Wiki User
∙ 12y agoBecause Its Closest to The Sun :)
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Do All of the following are reasons why astronomers have difficulty looking at distant stars except?
They don't understand how redshift affects stars.
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.
Which of the following is not a reason that astronomers have trouble viewing distant stars?
Distant stars give off less light
How do astronomers measure the distance to nearby stars?
Astronomers use a method called parallax to measure the distance to nearby stars. Astronomers can measure parallax by measuring the position of a nearby star with respect to the distant stars behind it. Then, they measure the same stars again six months later when the Earth is on the opposite side of its orbit.
Spectral lines are of particular importance in astronomy because?
For one reason, astronomers can figure out what stars are composed of by looking at their spectral lines.
Why astronomers have difficulty looking at distant stars except?
Astronomers have difficulty looking at distant stars because while we have highly specialized telescopes, they are in constant contention with various other celestial bodies. In addition to this, the light of distant stars takes hundreds of thousands of years to reach us, making it impossible to get a current look at a distant star.
Do All of the following are reasons why astronomers have difficulty looking at distant stars except?
They don't understand how redshift affects stars.
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.
Which of the following is not a reason that astronomers have trouble viewing distant stars?
Distant stars give off less light
What are the methods that astronomers use to identiy the composition of distant stars?
Spectroscopy.
How does a spectroscope enable astronomers to determine the characteristics of distant stars and galaxies?
en.wikipedia.org/wiki/Spectroscopy
How do astronomers measure the distance to nearby stars?
Astronomers use a method called parallax to measure the distance to nearby stars. Astronomers can measure parallax by measuring the position of a nearby star with respect to the distant stars behind it. Then, they measure the same stars again six months later when the Earth is on the opposite side of its orbit.
Is there a lot of light pollution on Earth that makes it difficult for astronomers to observe at distant stars?
Yes, human electric lighting is polluting the night sky.
What is the primary source of data on distant stars?
still looking for answers i dont know..
What do astronomers use to study the property of the stars?
Some astronomers study how matter behaves using particle accelerators.
Why do people say looking at stars is like looking in the past?
Because the speed of light is finite (around 186,000 miles per second) and the stars are so distant, it takes a long time for the light to reach the telescope from the stars - at least 4.2 years. Many objects are millions of light years distant, meaning that what we see in the sky is from the distant past.
When was Distant Stars created?
Distant Stars was created in 1981.
