Astronomy

Mastering astronomy help!!!

Mastering astronomy help!!!

Does anybody know where I can get the answers to mastering astronomy???  The homework is driving me crazy!!!

schung7   5997   1 Reply

bio_man

Could we see a galaxy that is 20 billion light-years away?

Could we see a galaxy that is 20 billion light-years away?

please explain?

rabb   2415   8 Replies

smcdowell3839

can anyone help with mastering astronomy???

can anyone help with mastering astronomy???

Its for chapter 10 and 11 of the the cosmic perspective 6th edition mastering astronomy, i keep doing them wrong!!

mljb123456   912   1 Reply

bio_man

What is the importance of Cepheid variables in astronomy?

What is the importance of Cepheid variables in astronomy?

What is the importance of Cepheid variables in astronomy?

ppk   763   1 Reply

lewis

Process of Science: Describe how scientists measure the distances to galaxies, s

Process of Science: Describe how scientists measure the distances to galaxies, s

Process of Science: Describe how scientists measure the distances to galaxies, starting with how they measure the distances of the nearest stars. Be sure to include enough detail so that someone who does not know the jargon of astronomy can still und

ppk   640   1 Reply

lewis

Can anyone explain string theory in simple terms for me?

Can anyone explain string theory in simple terms for me?

Well not too simplistically. It's just it's really late right now and super complicated concepts would cause my exhausted brain to shut down completely; I heard somewhere that many consider string theory has one of the best explanations for the begin

darwin22   826   10 Replies

das1130

Can anyone teach me about physics in space?

Can anyone teach me about physics in space?

I'd like to know more about black holes, stars, systems... the whole organization of everything, the way it all works. I've been so curious, and your answers can give me starting points to research the basics. I am interested in reading the theories

nzp123   718   6 Replies

dassanah

What is the distance in space you see with a 420 x 60 refractor telescope?

What is the distance in space you see with a 420 x 60 refractor telescope?

What is the distance in space you see with a 420 x 60 refractor telescope?

rk90   1172   7 Replies

Juliehansen

astronomers use a number of different units to measure distance space.?

astronomers use a number of different units to measure distance space.?

What is an astronomic unit and to what part of space is it applied

Lexyz   963   5 Replies

JulieA

How do we measure the distance in space is it light years or CMEs?

How do we measure the distance in space is it light years or CMEs?

How do we measure the distance in space is it light years or CMEs?

lfernandez   1054   7 Replies

zzz1090

how can anything be more than 13.7 billion lightyears away?

how can anything be more than 13.7 billion lightyears away?

I have very little knowledge about the astrophysics and the universe, but I HAVE been aware that our universe is known to be approximately 13.7 billion years old.  Now, knowing this, I would automatically assume that the furthest objects from earth w

rk90   423   10 Replies

fawilla

What is the best power to view larger galaxies and nebulae?

What is the best power to view larger galaxies and nebulae?

I have a Meade Etx 90 telescope, and I'm pretty new to backyard astronomy. I am curious as to what magnification is best for viewing galaxies, nebulae, and other deep sky objects with the best detail, while maintaining a clear image (The higher the m

Firas   472   5 Replies

rjones025

How did the Ptolemaic model explain retrograde motion of the planets?

How did the Ptolemaic model explain retrograde motion of the planets?

And what exactly is retrograde motion? Please explain in non-complicated English, my astronomy book is confusing =/

Microgirl16   1027   1 Reply

Rkamu

How do I calculate transverse velocity and magnitude?

How do I calculate transverse velocity and magnitude?

A star lying 45 pc from the Sun has proper motion of 0.2 "/yr. What is the star's transverse velocity? If the star's spectral lines are observed to be redshifted by 0.02 percent, calculate the magnitude of its three-dimensional velocity relative to t

rjandmj82   467   1 Reply

bugmenomore

What magnitude difference corresponds to a factor of ten change in flux?

What magnitude difference corresponds to a factor of ten change in flux?

Astronomy tutorial questions... keeps asking me to change apparent magnitudes into flux and back. I think I've been managing but this is one the questions near the beginning of the paper and I would like to check if I'm doing this right?

smoutera   364   1 Reply

fireedwin

Book on philosiphy of physics?

Book on philosiphy of physics?

Hey I want a good understanding of physics but I really just don't have the time to learn the math. So for example lets take a subject.. pressure
All I want to know is the variables that influence pressure, for example force, and area (I th

Sayshell   581   N/A

Sayshell

Labs

Labs

What do the labs look like in mastering astronomy? I am taking an astronomy class and I have 3 labs however I don't know what I am up against. Multiple choice, fill in the blank, essay, etc....? How many questions, etc...
If anyone has a

Widget81   635   3 Replies

biolove

What is a good telescope for a military member who travels.?

What is a good telescope for a military member who travels.?

I'm a military member stationed overseas in a heavily light polluted area and i'm looking to purchase a quality telescope that I can travel with.
I'm looking for a telescope with the following qualities:
* Capable of viewing some deep space objects

illestb   368   8 Replies

michn

mastering astronomy for physic class.

mastering astronomy for physic class.

Hi all, I'm new here and taking my first physics class. Looks like were using mastering astronomy as a lab and since the lab is new to me, I was hoping someone could give me some pointers. I've read through the web site. It's looks lik

new   651   2 Replies

bio_man

Astronomy

Astronomy

  :-:)Need Mastering Astronomy Answers (HELP)

toeolesigago   428   1 Reply

bio_man

What is a wave and a wavelength?

What is a wave and a wavelength?

I am looking for answers to Mastering Astronomy Chapter 5.
What is a wave and a wavelength?
What are the rest of the answers to chapter 5?

bethatabor   450   2 Replies

ipodps3

What are the advantages of becoming an astronaut?

What are the advantages of becoming an astronaut?

need some help with my essay and the topic is to state the advantages of becoming an astronaut.
Please help. State the advantages as points or just write it down as a small paragraph.

rixter119   328   1 Reply

findy

What are the requirements to become an astronaut?

What are the requirements to become an astronaut?

I am only 14 but in the somewhat distant future, I really would love to become an astronaut. What are the age/weight/height requirements that I need to meet? And what degrees do I have to have? Also, what college(s) are best for future astronauts? An

Fin13kw   307   1 Reply

michdo

What will I need to do and have to become an astronaut?

What will I need to do and have to become an astronaut?

i know its a common question but i am just as passionate about this dream as an actual astronaut.
what academic achievements will i need and in what subjects? how fit will i need to be? will I need to be a US citizen? what are the chances of me beco

finalform   343   3 Replies

filterfactor

Mastering Astronomy Chapter 7 Concept Quiz?

Mastering Astronomy Chapter 7 Concept Quiz?

Hey guys I'm not sure whether or not this is against the rules, but I'm looking for the answers to this quiz and don't seem to see them anywhere on this site. I went home for the weekend (stupid excuse, but it's true) and left my

Roosterfosho   2129   1 Reply

dmitriych

second law

second law

Each of the four diagrams below represents the orbit of the same comet, but each one shows the comet passing through a different segment of its orbit around the Sun. During each segment, a line drawn from the Sun to the comet sweeps out a triangular-

xonessa   820   1 Reply

Alexx

Astronomy-Stars & galaxies Ch.4 equation help needed..humbly requested

Astronomy-Stars & galaxies Ch.4 equation help needed..humbly requested

omg ya'll- Can anyone walk me through this problem?
"A distant galaxy is receding from Earth with a radial velocity of 9900 km/s At what wavelength would its Lya line be received by a detector above Earth's atmosphere?"

pegasus2   698   3 Replies

pegasus2

Mastering Astronomy

Mastering Astronomy

Does anybody know where to find the mastering astronomy answer keys?

Knightsky1216   474   1 Reply

duddy

Astronomy Math

Astronomy Math

So, I don't understand math I'm supposed to do for my astronomy homework... Which is 20% of my grade. I'm doomed.

rhiready   336   1 Reply

bio_man

How many times greater is the flux from a star that is 5.0 times greater than our sun?

How many times greater is the flux from a star that is 5.0 times greater than our sun?

This is for an astronomy homework assignment and I'm really struggling. I know the formula is F =oT^4 (o=sigma), but where do I go from there? The hint says, "Set up a ratio of the flux of the sun compared to the flux of the star, then cancel common

lemur   729   2 Replies

datboililp

Why are people getting exited over kepler 22b?

Why are people getting exited over kepler 22b?

i mean like isnt gliese 581 only 10 light years away and kepler 22b 600 light year away?

firehouse   245   9 Replies

juldina1

how to determine 17th and 18th century ways to compute the mass of the earth?

how to determine 17th and 18th century ways to compute the mass of the earth?

I am working on a project, i need to find different ways people in the 17th and 18th centuries computed the mass of the earth, They gave us Kepler and Newton. What other ways were there?

fireman5   381   2 Replies

Jujujugo

What is number of years required for the asteroid to make one revolution about the Sun?

What is number of years required for the asteroid to make one revolution about the Sun?

** The mean distance of an asteroid from the Sun is 4.10 times that of Earth from the Sun. From Kepler's law of periods, calculate the number of years required for the asteroid to make one revolution about the Sun.

_____ years

FIREMEDIC73   247   3 Replies

lekh

How does the heliocentric theory relate to the U.S. or anywhere in the world relate to times now?

How does the heliocentric theory relate to the U.S. or anywhere in the world relate to times now?

I have to do a project, more like a report, for school and we're learning about the Enlightenment and the Scientific Revolution and I have to write a 5 paragraph which has to come out to a 3 page essay about how the heliocentric theory which Copernic

michaelsims   321   1 Reply

michdem

Alignment of the Earth and Milky Way on December 21st 2012?

Alignment of the Earth and Milky Way on December 21st 2012?

Look we all the the internet hype about what will occur. About the Mayan Calender lets be logical, could it be they ran out of space and became and obselete race before they could have created a new calender? Also if the new Calendar started some fiv

bugz   446   8 Replies

Jules3791

Another galactic alignment question?

Another galactic alignment question?

So if this galactic alignment takes place every 26,000 years doesn't that mean its basically aligned right now?  

Its only 1/26,000th of a year off from dead center alignment right now correct?  That means, as soon as it aligns perfectly on December

bugz   333   8 Replies

lekolwane

OK so how did those Mayans know about Celestial Cycles? when its like 26,000 years long?

OK so how did those Mayans know about Celestial Cycles? when its like 26,000 years long?

and their civilization only lasted what a few hundred years?
the cycle that our solar system is lined up with the galactic center.
not thinking the world will end, but just wondering how they got this information

lekh   298   9 Replies

julesxiii

what is the earth tilt ? how can u define it?

what is the earth tilt ? how can u define it?

what is the earth tilt ? how can u define it?

Julep1   518   4 Replies

SMK930

Earth Science Help Please?

Earth Science Help Please?

If Earth?s axis were tilted less than 23.5°, which seasonal average temperature change would occur in New York State?


1.Spring and fall would be cooler.
2.Spring and fall would be warmer.
3.Winter would be cooler.
4.Summer would be cooler

Julaaro   368   4 Replies

rivatayah

2012 Prediction.... Nostradamus predictions?

2012 Prediction.... Nostradamus predictions?

Nostradamus was very precise in his astronomy, and the galactic alignment theory is the only theory that's makes any sense.. Is this true.

Can someone explain the galactic theory to me please and why it wont happen.

fireman2101   388   6 Replies

rivatayah