Astronomy

How can detection and study of gravitational waves enhance our understanding of

How can detection and study of gravitational waves enhance our understanding of

How can detection and study of gravitational waves enhance our understanding of the universe?

barry   292   2 Replies

barry

Why are astronomers so excited about planets 2 times as massive as Earth?

Why are astronomers so excited about planets 2 times as massive as Earth?

i've been reading some articles about astronomy and the search for other earth like planets which could support life, but they seem to be excited about planets 2-3 times as massive as earth. you wouldn't be able to survive very long and we would have

$abood$   264   7 Replies

MI

Nearly every aspect of astronomy is related in some way to the existence of grav

Nearly every aspect of astronomy is related in some way to the existence of grav

Nearly every aspect of astronomy is related in some way to the existence of gravity and to the motions which are responsible for a balance against gravity.  How does this balance play a role for the miscellaneous objects of the solar system (i.e

barry   285   2 Replies

barry

One of the most popular symbols of astronomy is Saturn with its system of rings.

One of the most popular symbols of astronomy is Saturn with its system of rings.

One of the most popular symbols of astronomy is Saturn with its system of rings.  Describe the structure and makeup of these rings.

barry   714   2 Replies

barry

Why is UV astronomy difficult to do from the ground?

Why is UV astronomy difficult to do from the ground?

Why is UV astronomy difficult to do from the ground?

barry   1632   2 Replies

barry

Why is spectroscopy important to astronomers?

Why is spectroscopy important to astronomers?

Why is spectroscopy important to astronomers?

barry   322   2 Replies

barry

If we increased the pressure in the gas of a blackbody, how will the spectral li

If we increased the pressure in the gas of a blackbody, how will the spectral li

If we increased the pressure in the gas of a blackbody, how will the spectral lines be affected?

barry   800   2 Replies

barry

The Great Nebula in Orion, M-42, is a low-density cloud of hot gas. Use Kirchho

The Great Nebula in Orion, M-42, is a low-density cloud of hot gas. Use Kirchho

The Great Nebula in Orion, M-42, is a low-density cloud of hot gas.  Use Kirchhoff's laws to describe its spectrum.

barry   1033   2 Replies

barry

According to Kirchhoff's first law why do dense, hot bodies create the type of s

According to Kirchhoff's first law why do dense, hot bodies create the type of s

According to Kirchhoff's first law why do dense, hot bodies create the type of spectrum they do?

barry   1233   2 Replies

barry

State the relationship between photon energy, frequency, and wavelength.

State the relationship between photon energy, frequency, and wavelength.

State the relationship between photon energy, frequency, and wavelength.

barry   596   2 Replies

barry

Explain how Bohr's model creates emission and absorption lines in the spectrum.

Explain how Bohr's model creates emission and absorption lines in the spectrum.

Explain how Bohr's model creates emission and absorption lines in the spectrum.

barry   2925   2 Replies

barry

Explain what types of information can be obtained from a spectral line.

Explain what types of information can be obtained from a spectral line.

Explain what types of information can be obtained from a spectral line.

barry   1561   2 Replies

barry

If the magnetic fields are very strong, such as around sunspots, how are spectra

If the magnetic fields are very strong, such as around sunspots, how are spectra

If the magnetic fields are very strong, such as around sunspots, how are spectral lines affected by the Zeeman effect?

barry   561   2 Replies

barry

Explain the Zeeman effect allows us to study stellar magnetic fields.

Explain the Zeeman effect allows us to study stellar magnetic fields.

Explain the Zeeman effect allows us to study stellar magnetic fields.

barry   699   2 Replies

barry

A binary star system is one with two stars orbiting each other. How can the Dop

A binary star system is one with two stars orbiting each other. How can the Dop

A binary star system is one with two stars orbiting each other.  How can the Doppler Effect be used to find binary stars whose orbital plane is along our line of sight?  Their periods?

barry   451   2 Replies

barry

Kirchhoff was the first to describe qualitatively the types of spectra we observ

Kirchhoff was the first to describe qualitatively the types of spectra we observ

Kirchhoff was the first to describe qualitatively the types of spectra we observe from luminous objects.  Describe the three types and their sources.

barry   375   2 Replies

barry

Describe two ways light can be separated out into its component colors in detail

Describe two ways light can be separated out into its component colors in detail

Describe two ways light can be separated out into its component colors in detail for spectroscopic analysis.

barry   571   2 Replies

barry

How can Kirchhoff's Laws be used to deduce something about the nature of the lig

How can Kirchhoff's Laws be used to deduce something about the nature of the lig

How can Kirchhoff's Laws be used to deduce something about the nature of the light source?

barry   433   2 Replies

barry

Describe how Einstein used the photoelectric effect to support the particle theo

Describe how Einstein used the photoelectric effect to support the particle theo

Describe how Einstein used the photoelectric effect to support the particle theory of light and photons.

barry   236   2 Replies

barry

How are we able to determine the chemical composition and temperature of any vis

How are we able to determine the chemical composition and temperature of any vis

How are we able to determine the chemical composition and temperature of any visible object?

barry   455   2 Replies

barry

How can the light reflected off a planet reveal information about its atmosphere

How can the light reflected off a planet reveal information about its atmosphere

How can the light reflected off a planet reveal information about its atmosphere, even though the planet is not creating this light?

barry   567   2 Replies

barry

Why are molecular lines usually found in infrared and radio regions, not as visi

Why are molecular lines usually found in infrared and radio regions, not as visi

Why are molecular lines usually found in infrared and radio regions, not as visible lines?

barry   733   2 Replies

barry

What relationship did Newton find between orbital and escape velocities? Relate

What relationship did Newton find between orbital and escape velocities? Relate

What relationship did Newton find between orbital and escape velocities?  Relate this to the staging of the Apollo missions, first to a parking orbit about the Earth, and then on to the Moon.

barry   948   2 Replies

barry

How can astronomer's determine the mass of the Sun?

How can astronomer's determine the mass of the Sun?

How can astronomer's determine the mass of the Sun?

barry   346   2 Replies

barry

According to Newton's third law, the Voyager probes pulled just as hard on Jupit

According to Newton's third law, the Voyager probes pulled just as hard on Jupit

According to Newton's third law, the Voyager probes pulled just as hard on Jupiter as it did on them when they flew past it.  Why were they accelerated enough to leave the solar system but Jupiter still is in orbit about the Sun?

barry   1210   2 Replies

barry

Explain how Kepler's laws allow us to use the motion of an asteroid to find its

Explain how Kepler's laws allow us to use the motion of an asteroid to find its

Explain how Kepler's laws allow us to use the motion of an asteroid to find its average distance from the Sun.

barry   667   2 Replies

barry

In what geometric way can we determine the absolute distances to the planets?

In what geometric way can we determine the absolute distances to the planets?

In what geometric way can we determine the absolute distances to the planets?

barry   594   2 Replies

barry

Relate Kepler's Second Law to the speeds of the planets.

Relate Kepler's Second Law to the speeds of the planets.

Relate Kepler's Second Law to the speeds of the planets.

barry   1382   2 Replies

barry

How does Kepler's First Law refine the Copernican model greatly?

How does Kepler's First Law refine the Copernican model greatly?

How does Kepler's First Law refine the Copernican model greatly?

barry   1308   2 Replies

barry

How did Galileo's observations of Venus disprove the Ptolemaic model?

How did Galileo's observations of Venus disprove the Ptolemaic model?

How did Galileo's observations of Venus disprove the Ptolemaic model?

barry   3337   2 Replies

barry

How would Ptolemy explain the rising of the Sun? Contrast this to Copernicus' e

How would Ptolemy explain the rising of the Sun? Contrast this to Copernicus' e

How would Ptolemy explain the rising of the Sun?  Contrast this to Copernicus' explanation of the same event.

barry   2379   2 Replies

barry

Why do Newton's Laws show a force must be acting on the planets?

Why do Newton's Laws show a force must be acting on the planets?

Why do Newton's Laws show a force must be acting on the planets?

barry   1847   2 Replies

barry

Explain how Newton could turn observations of a cannonball in flight into a sate

Explain how Newton could turn observations of a cannonball in flight into a sate

Explain how Newton could turn observations of a cannonball in flight into a satellite orbit.

barry   1623   2 Replies

barry

Using Newton's first law, describe the motion of a body is moving in the absence

Using Newton's first law, describe the motion of a body is moving in the absence

Using Newton's first law, describe the motion of a body is moving in the absence of any net external force.

barry   784   2 Replies

barry

What is meant by the Astronomical Unit?

What is meant by the Astronomical Unit?

What is meant by the Astronomical Unit?

barry   350   2 Replies

barry

Explain how the eccentricity describes the shape of an ellipse.

Explain how the eccentricity describes the shape of an ellipse.

Explain how the eccentricity describes the shape of an ellipse.

barry   2319   2 Replies

barry

Of all his laws, Kepler was proudest of the third. Why was it so appealing in h

Of all his laws, Kepler was proudest of the third. Why was it so appealing in h

Of all his laws, Kepler was proudest of the third.  Why was it so appealing in his search for cosmic harmony?

barry   791   2 Replies

barry

What did Galileo discover when looking at the Sun with his telescope, and how di

What did Galileo discover when looking at the Sun with his telescope, and how di

What did Galileo discover when looking at the Sun with his telescope, and how did this support Copernicus?

barry   741   2 Replies

barry

What did Galileo discover about Jupiter that supported Copernicus?

What did Galileo discover about Jupiter that supported Copernicus?

What did Galileo discover about Jupiter that supported Copernicus?

barry   566   2 Replies

barry

Explain how Copernicus would account for the retrograde loops of superior planet

Explain how Copernicus would account for the retrograde loops of superior planet

Explain how Copernicus would account for the retrograde loops of superior planets.

barry   1520   2 Replies

barry