#AsuultSambar :

ASUULT.NET - МОНГОЛ УЛС МАНДАН БАДРАГ!
It is currently Jun.25.19 6:25 am

All times are UTC+09:00




Post new topic  Reply to topic  [ 53 posts ]  Go to page 1 2 3 Next
Author Message
 Post subject: Astronomy
PostPosted: Feb.29.12 2:58 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
Our Solar system
Chapter 1

_________________
FdayNextFdayAfterNextFday


Last edited by bilguun_kojp on Feb.29.12 3:43 pm, edited 1 time in total.

Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:06 pm 
Offline
• Moderator
<b><font color=#000099>• Moderator</font></b>
User avatar

Joined: Mar.06.09 11:45 am
Posts: 13616
Location: God did not create man, man created god.
Our solar system what?

_________________
Science, bitсh!


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:11 pm 
Offline
Асуултын Архаг Мангас Гишvvн
User avatar

Joined: Jul.13.11 11:23 pm
Posts: 3662
Location: restaurant at the end of the universe
Our solar system sucks?

_________________
CAN ENTROPY EVER BE REVERSED?


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:16 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
What is all this we observe?

Universe: The sum total of all matter and
energy.

Galaxy: A huge collection of anywhere from a
few hundred million to more than a trillion stars,
all bound together by gravity.

Solar system: A star (sometimes more than one
star) and all the objects that orbit it.

_________________
FdayNextFdayAfterNextFday


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:18 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
But how far is everything??

Should we measure in meters, miles,
kilometers??

Depends on what we are measuring.

Introduce new units of measurments:

Astronomical Unit

Light year

Parsec

_________________
FdayNextFdayAfterNextFday


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:19 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
Astronomical Unit (AU)

1 AU is the average distance between Earth
and the Sun.

About 150 million km.

Which of the following is less than 1 AU:

A Distance between Sun and Jupiter

B Distance between Earth and the Moon

C Distance to the next nearest star

_________________
FdayNextFdayAfterNextFday


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:20 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
Light year

Time or distance?

Distance light travels in a year.

9.46 trillion km in one year.

How far are the following in light
years/minutes/seconds?

A) Next nearest star – about 4 light years

B) Our Sun – about 8 light minutes

C) The Moon – about 1 light second

We are seeing everything as it was in the past!

_________________
FdayNextFdayAfterNextFday


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:21 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
Quote:
Our solar system sucks?
do not be rude esse do ur essay :laugh5:

_________________
FdayNextFdayAfterNextFday


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:22 pm 
Offline
• Moderator
<b><font color=#000099>• Moderator</font></b>
User avatar

Joined: Mar.06.09 11:45 am
Posts: 13616
Location: God did not create man, man created god.
Okay, thanks for the information and quiz. Would you mind to explain us why did u create this post? :?

_________________
Science, bitсh!


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:23 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
Distances in space

What units do we use?

Astronomical Units

Light years (ly)

Kilometers (Km)

_________________
FdayNextFdayAfterNextFday


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:25 pm 
Offline
• Moderator
<b><font color=#000099>• Moderator</font></b>
User avatar

Joined: Mar.06.09 11:45 am
Posts: 13616
Location: God did not create man, man created god.
Parsec
Англи хэлний тест юм уу?

_________________
Science, bitсh!


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:26 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
Quote:
Okay, thanks for the information and quiz. Would you mind to explain us why did u create this post? :?
oh why do u need an explanation? brother

_________________
FdayNextFdayAfterNextFday


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:28 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
Quote:
Parsec
Англи хэлний тест юм уу?
yahavde lecture iig post hiichiheer haaya zavaara utasnaasa harahad amar geed post hiij bn aa bolno biz de? bolohguimu? :??:

_________________
FdayNextFdayAfterNextFday


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:30 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
The Sun is:

A) 8 light seconds away

B) 8 light minutes away

C) 8 light years away

The answer is: B

1 astronomical unit is:

A) the distance from us to the moon

B) the time it takes for the Sun's light to reach us

C) the distance from us to the sun

D) the distance from us to the next nearest star

The answer is: C

_________________
FdayNextFdayAfterNextFday


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:31 pm 
Offline
• Moderator
<b><font color=#000099>• Moderator</font></b>
User avatar

Joined: Mar.06.09 11:45 am
Posts: 13616
Location: God did not create man, man created god.
Аан зөв зөв, болох л байлгүй дээ.

_________________
Science, bitсh!


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:31 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
How big is the Milky Way?

From one end to the other it is 100,000 light
years in diameter.

Next nearest galaxy, Andromeda or M31, is
about 2.5 million light years away.

We are located on the Orion arm, ~28,000 light
years from the center.

_________________
FdayNextFdayAfterNextFday


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:33 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
Quote:
Аан зөв зөв, болох л байлгүй дээ.
meddeg yum bval delgeruulj bolno shu!

_________________
FdayNextFdayAfterNextFday


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:35 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
Does the Milky Way move?

Yep, it sure does.

It rotates, Galactic rotation.

Our solar system orbits the galaxy once every
about 230 million years. (500,000 mph!)

Different parts of the galaxy rotate at different
speeds.

But where are we moving to? Where are we?

_________________
FdayNextFdayAfterNextFday


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:37 pm 
Offline
• Moderator
<b><font color=#000099>• Moderator</font></b>
User avatar

Joined: Mar.06.09 11:45 am
Posts: 13616
Location: God did not create man, man created god.
We r moving to its core.

_________________
Science, bitсh!


Last edited by CrossBonez on Feb.29.12 3:37 pm, edited 1 time in total.

Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:37 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
Big Bang overview

Big bang occured about 14 billion years ago.

This is the beginning of the universe.

The universe has been expanding ever since.

Some galaxies are moving towards each other
while others are moving away.

Universe is expanding and accelerating!

_________________
FdayNextFdayAfterNextFday


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:39 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
Quote:
We r moving to its core.
it's Precession i guess

_________________
FdayNextFdayAfterNextFday


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:40 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
How does the Earth move?

We rotate (spin on our axis) once a day

We revolve (orbit) the Sun once a year.

We rotate and revolve in a counterclockwise
direction as seen from the north pole.

Is the north pole facing straight up?

Rotation: The spinning of an object around its
axis.

Revolution: The orbital motion of one object
around another.

_________________
FdayNextFdayAfterNextFday


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:42 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
Earth's Axis

Earth's axis is tiltled at a 23.5 degree angle.

Why is this so important?

We get seasons! (more in chap2)

As we revolve, different parts of the Earth face
the Sun differently.

We revolve in an

ecliptic plane.

_________________
FdayNextFdayAfterNextFday


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:44 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
Some definitions

Ecliptic: apparent annual path of the Sun among
the constellations.

Horizon: A boundry that devides what we can see
from what we cannot see.

Zenith: The point directly overhead, which has an
altitude of 90°.

Meridian: A half-circle extending from your
horizon (altitude 0°) due south, through your
zenith, to your horizon due north.

Azimuth: Direction around the horizon from due
north, measured clockwise in degrees.

Altitude: The angular distance between the
horizon and an object in the sky.

_________________
FdayNextFdayAfterNextFday


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:45 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
need some pics?

_________________
FdayNextFdayAfterNextFday


Top
   
 Post subject: Re: Astronomy
PostPosted: Feb.29.12 3:48 pm 
Offline
Эзэрхийлэгч Гишvvн
Эзэрхийлэгч Гишvvн
User avatar

Joined: Apr.30.08 9:12 am
Posts: 918
Location: I love Trey songz!!!!!
Quote:
Parsec
Англи хэлний тест юм уу?
The parsec (symbol: pc) is a unit of length used in astronomy. It is about 3.26 light-years, or just under 31 trillion (3.1×1013) kilometres (about 19 trillion miles).

_________________
FdayNextFdayAfterNextFday


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 53 posts ]  Go to page 1 2 3 Next

All times are UTC+09:00


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron

Copyright Asuult.NET © 2000-2015.
Administrative Contact: Khundaga Khurelbaatar [hundaga@hotmail.com]
Tel: 1-888-303-4927, Fax: 1-888-406-2264.
Powered by phpBB © 2000-2015 phpBB Group. Powered by phpBB® Forum Software © phpBB Limited