Wednesday
July 23, 2014

Search: astronomy

Number of results: 492

astronomy
what good has astronomy produced?
September 5, 2011 by Varia

astronomy
Two stars in a binary system are determined from their position on the H-R diagram and the mass-luminiosity relation to have a combined mass of 8 M. Their orbital period, P, is 1 year. What is their orbital seperation, a? http://en.wikibooks.org/wiki/Astronomy/Mass
April 27, 2007 by Sethi

Astronomy
Few question about astronomy: 1.how many centimetres is equivalent to a light-nanosecond 2. How long is an astronomical unit (AU) in light-minutes (1min, i.e., the distance that light travels in a vacuum in one minute)? Please show the calculation if there is any Thanks
September 13, 2011 by KD

astronomy
what are the contributions of astronomy?
August 29, 2011 by Varia

astronomy
what is the meaning of astronomy?
August 28, 2011 by Anonymous

Astronomy
Need some help with Astronomy. I need to figure out the acceleration of gravity on the surface of certain planets. For example, I need to find the acceleration of gravity on Mars when the mass is .11 times the mass of Earth and the radius is .53 times the radius of Earth. ...
October 26, 2008 by TAG

science
I have to find out some facts about the dwarf planet vulcan. I have tried wikipedia but it was no help. Can any one please give me some facts or websites that can. This may be what you need. http://www.space.com/scienceastronomy/astronomy/epsilon_vulcan_000804.html
February 9, 2007 by liza

astronomy
Why is the sky blue?
January 21, 2008 by Belinda

Astronomy
What is the radius of the sun?
December 3, 2012 by jane

Astronomy
The saros cycle
June 11, 2013 by Terrance

Astronomy
What is the phenomenon of differentiation and how does it occurs
November 5, 2008 by Mike

Astronomy
Why are there different types of galaxies?
July 20, 2010 by Magesh

astronomy
How long is the precession cycle?
August 29, 2010 by Anonymous

Astronomy
What type of spectrum is sunlight?
February 18, 2014 by Barbara

Astronomy
The precession of the Earth its causes, and its ramifications
March 27, 2010 by b

astronomy
What does supernova produce, helium or carbon?
April 29, 2010 by Anonymous

astronomy
What does supernova produce, helium or carbon?
April 29, 2010 by Anonymous

Astronomy
What is the Lorentz factor for a spaceship traveling at 0.5c?
March 4, 2012 by Linda

Astronomy
what are the largest stars in the HR diagram called?
March 13, 2012 by Hannah

astronomy
big bang theory define
July 15, 2012 by Luis

Astronomy
How to find the orbital radius of a planet?
December 12, 2012 by Jola

astronomy
which of the statment about CMB are true?
October 7, 2013 by Bela

Astronomy HELP
when does a full moon rise and set?
January 7, 2014 by Mary Ann

astronomy
why does Venus have such a high Albedo
November 6, 2008 by Mike

astronomy
on which planets would you weih more than on the earth?
April 11, 2009 by joe

Astronomy
Venus orbits 0.72 AU from the sun. What is that distance in kilometers?
September 6, 2010 by Meliset

Astronomy
Venus orbits 0.72 AU from the sun. What is that distance in kilometers?
September 7, 2010 by Meliset

Astronomy
Explain what occurs during tidal friction?
October 3, 2011 by Rebecca

Astronomy
How many degrees of longitude does the Sun move in each hour?
November 2, 2011 by James

ASTRONOMY
Compare Einstein and Newton's pictures of gravity.
December 19, 2011 by Kate

AStrONomY
What contributions of Uranus were made by the Voyager 2 program?
February 27, 2012 by CHEYANNE

Astronomy
The frequency of a radio transmitter is 90 megahertz. What is its wavelength?
March 4, 2012 by Linda

Astronomy
Why is it possible to see Mercury at 6:45 pm on February 5, 2014?
February 16, 2014 by Carol

Astronomy
How far will Venus be from Earth on February 19, 2014?
February 17, 2014 by Carol

astronomy
If the planet is in an edge-on orbit, what would its mass be (in kg)?
June 25, 2014 by keitanako

Astronomy
Describe in one sentence the rotations and revolutions of the planets.
November 23, 2007 by Liz

Astronomy
If the elipse were a planet's orbit where would the sun be on the page?
April 11, 2009 by joe

astronomy
on which planets would you weigh nearly the same as on earth?
April 11, 2009 by joe

Astronomy
what is the size of Venus? What is this asking? Volume, Mass, or diameter? please help.
April 28, 2009 by John

Astronomy
what is the size of Venus? What is this asking? Volume, Mass, or diameter? please help.
April 28, 2009 by John

astronomy
How are cepheid and rr lyrae variables used in determining distances?
January 8, 2010 by Taylor

astronomy
Explain the cause of the Earths' season. I need a diagram for my explanation
March 27, 2010 by b

U of M astronomy
if a planet has a period of 1 century, what is its average distance from the Sun in AU?
February 14, 2011 by pam

astronomy
What is the electromagnetic flux coming from the surface of a 5000K blackbody?
March 19, 2011 by james

astronomy
Why the Universe ,as we know it,made of matter,with no antimatter,and what is the role of neutrino? Thanks
October 7, 2013 by Mia

Astronomy
Why is it possible to see the planet Mercury at 6:45 pm on February 5, 2014.
February 15, 2014 by Rashida

Astronomy
What five object were found in the sky on February 5, 2014 at 9 pm.
February 15, 2014 by Ann

Astronomy
Why is the portion of Venus opposite the direction of the Sun not apparent.
February 16, 2014 by Barbara

Astronomy
Why is the portion of the Moon opposite the direction of the Sun not apparent?
February 16, 2014 by Barbara

Astronomy
How did the voyager mission change our preconception of Jupiter and its moons
November 9, 2007 by Liz

astronomy
why is it necessary for ultrviolet telescopes to be placed on a space-based platform? thanks
March 3, 2008 by amy21

Astronomy
What are two pieces of evidence that the earth is a highly differentiated body
November 5, 2008 by Mike

Math/Science/Astronomy
What is the formula to calculate the illumination fraction of the Moon?
December 24, 2008 by Anonymous

Astronomy
Does the = sign in the equation E=mc2 mean that energy and light are equivalent
March 27, 2010 by b

Astronomy
Do people wear seatbelts to protect themselves from speed or acceleration?
September 14, 2010 by Dre

astronomy
please help. what tools do astronomers use for investigations and give an example.
August 28, 2011 by Anonymous

chemistry
Which of the following is not an example of a science? geology astronomy astrology ecology
February 10, 2013 by sabrina

chemistry
Which of the following is not an example of a science? geology astronomy astrology ecology
February 10, 2013 by raven

Astronomy
If I was born on August 12, 1953 what is the constellation of my Astrological"Sun Sign".
February 13, 2014 by Barbara

Astronomy
What is my Astrological "Sun Sign" and how was it determine if I was born on August 12, 1953.
February 13, 2014 by Barbara

Astronomy
Why is the time at which leo transits the meridian different for mexico city and chicago?
January 28, 2009 by Melissa

Astronomy
Is the ellipse more circular when the tacks are closer together or farther apart?
April 10, 2009 by joe

Astronomy
Is the elipse more circular when the tacks are closer together or farther apart?
April 11, 2009 by joe

Astronomy
How do observations of he sun's surface tell us about conditions in the solar interior?
November 15, 2009 by Taylor

College astronomy
What would be the parallax of Alpha Centauri if measurements were made from Mars?
March 2, 2011 by Lisagail

english
Christina and Christopher worked together and completed a project about astronomy.
January 26, 2011 by Anonymous

Astronomy 1010
What are six regions of the electromagnetic spectrum? please detail and answer
January 17, 2012 by Frank

lang
A science that looks at atmosphere and the weather. A. Chemistry B. Meteorology C. Geology D. Astronomy d
February 18, 2012 by kesha

Opinion
Which class would be better(easier) to take Earth Science or Astronomy?
March 21, 2012 by Marie

Astronomy
If the cosmic microwave background radiation (CMBR) is at a temperature of 2.7K, what is its peak wavelength?
April 23, 2012 by Leila

Astronomy
If the cosmic microwave background radiation (CMBR) is at a temperature of 2.7K, what is its peak wavelength?
April 23, 2012 by Leila

astronomy
What phase is the Moon if it is visible in the sky at midnight, but not exactly, opposite the Sun?
July 15, 2012 by Gerson

Astronomy
How were the different objects in the solar system discovered? What are the properties of the ice giants?
July 26, 2012 by David

Astronomy
What is the estimated total lifetime for a star with mass 0.7 Msun ? (in billions of year)
March 4, 2014 by qwerty

Astronomy
True or False? Galaxies are distributed randomly and approximately uniformly in space.
June 18, 2014 by querty

Astronomy
What about a for a supernova in an elliptical galaxy of 10^12 solar masses and radius of 50 kpc? Yes or No
June 24, 2014 by qwerty

astronomy
if you shoot a cannonball due north from a latitude of -45o where will it fall 100km from the cannon
January 28, 2011 by Anonymous

astronomy
what is the speed of a point on the equator in miles per hour as the earth rotates on its axis?
September 10, 2011 by katy

Astronomy
Enter the expression for kinetic energy ( ) below. Use m_1 for mass and v for velocity.
December 8, 2012 by LaV ern

Astronomy
Enter the expression for kinetic energy ( ) below. Use m_1 for mass and v for velocity.
December 9, 2012 by LaV ern

Astronomy
The majory of galaxies (by number) are: - barred spirals - giant ellipticals - lenticulars - dwarfs
March 1, 2013 by qwerty

Astronomy
Calculate the amount of energy released if a total of 1.5 kg of hydrogen is fused into helium.
October 24, 2013 by Steven

Astronomy
How close to the sun Ganymede would have to be in order to hold water in its atmosphere. (in AU)
March 4, 2014 by qwerty

science
can u explain the wter cycle for me ? i wonder what precipitation means? http://www.onelook.com/ Type precipation in that window http://www.enchantedlearning.com/subjects/astronomy/planets/earth/Watercycle.shtml
March 7, 2007 by rebecca

astronomy/physics
determine the mass of the earth from the known period (365.25 days) and the distance of the moon (3.84X10^3 km)
December 7, 2008 by Michael

Science: Astronomy
Why do extremely cold stars look fainter than we might expect from their luminosities and distances?
July 15, 2010 by Katrell

Science: Astronomy
How many 0.75 -M main sequence stars would it take to equal the luminosity of one 15 -M star?
July 15, 2010 by Katrell

Astronomy and Space
Using a telescope, which planets acn be observed from Earth in a crescent moon phase?
September 14, 2010 by Dan

astronomy
Fill in the blank: The Earth may have gained its water and volatile gases from collisions with _______ .
October 24, 2010 by Ally

English
Identify the complete adjective clause and the word it modifies. I elected to take astronomy, which is not a required course.
June 9, 2011 by Daniel

astronomy
the radius of earth is 4000 miles, how far would you travel in going around the equator?
September 10, 2011 by katy

Astronomy
True or False? The first galaxies formed in the regions where dark matter density was highest.
June 18, 2014 by querty

Astronomy
How could you tell if a moon or planet did not form with the rest of the solar system bodies? How might it have gotten there then?
November 23, 2007 by Liz

astronomy
The totally ecliped full moon is reddish in color due to the solar prominences. true or false
January 27, 2009 by Jo

astronomy
A light bulb radiates most strongly at a wavelength of about 3000 nanometers. How hot is its filament?
March 27, 2010 by b

college astronomy
whats the effect and the cause of retrograde motion in earths sky on both inferior and superior planets?
April 2, 2010 by nelly

astronomy
true or false: The cosmological redshift is a direct measure of the expansion of the universe, thus independent of direction
April 29, 2010 by laura

Astronomy
How would I compare the orbital period of two stars knowing their distance apart in AU and their solar masses?
October 19, 2010 by Dre

astronomy
Calculate the average speed of a water molecule (with a mass of 3.0e-26 kg) on the hot side of Mercury (710 Kelvin).
March 12, 2011 by james

Astronomy 1010
Do all wavelength of light make it through the atmosphere? Explain. please detail help and answer
January 17, 2012 by Frank

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