New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

Astronomy 1010 Ch 1

by: Alikhan Ladhani

Astronomy 1010 Ch 1 Astr 1010

Alikhan Ladhani
GPA 3.2

Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

These are notes that are covered in the the first chapter of our book.
Class Notes
Astro 1010, Astronomy 1010, astronomy, GSU
25 ?




Popular in Astronomy

Popular in Science

This 4 page Class Notes was uploaded by Alikhan Ladhani on Wednesday January 20, 2016. The Class Notes belongs to Astr 1010 at Georgia State University taught by in Spring 2016. Since its upload, it has received 84 views. For similar materials see Astronomy in Science at Georgia State University.


Reviews for Astronomy 1010 Ch 1


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 01/20/16
Astronomy class notes 1/20/16 10:01 AM Star • A large glowing ball of gas that geraerates heat and light through nuclear fusion Planet • A moderately large object that orbits a star it shines by reflected light planets may be rocky icy or gaseous in composition • Reflects sun light Galaxy • A great island of stars in space, held together by gravity and orbiting a common center Universe • The sum of all matter and energy everything within and between all galaxies The scale of the universe • units o distance: meter (of kilometer= 1000m) o mass: gram (or kilogram= 1000g) § how much matter in an object o time: second (1 day= 24 hr x 60 min x 60 s) • powers of 10 o need to deal with big numbers: EARTH- SUN distance= 150,000,000 km= 1.5x10^8 kilometer o also small numbers: mass of hydrogen atom = 0.0000000000000000000000017 gram = 1.7 x 10^-24 gram • Distance in astronomy o Astronomical unit- the average distance between the earth and sun (1.5 x 10^8km) o Parsec- the typical distance between stars as defined by the angular wobble caused by earhts orbit (3.1 x10^13 km) o Light-year- the distance between light can travel in one year (9.5 x 10^12 km) • how big is the universe? o the milky way is one of about 100 billion galaxies that we can see o 10^11 stars/galaxy x 10^11 galaxies = 10^22 stars § as many stars as the grains of san on all of earths beaches • history of universe: 14 billion years Destination Light travel time moon 1 second Sun 8 minutes Sirius (nearby star) 8 yr Andromeda galaxy 2.5 million years § **when we see the sun we are seeing it how it was 8 minutes ago Our cosmic address • Earth is a planet in our solar system o Consist of the sun, planet and their moons and smaller object like rocky asteroids and icy comets • Our solar system belongs to the milky way galaxy o Galaxy is a great island of stars in space containing between a few hundred million and a trillion or more stars o Milky way one of the 2 largest among about 40 galaxies in the local group • Groups of galaxies with more than a few dozen members are often called galaxy clusters • Regions where galaxies and galaxy clusters are most tightly packed are called super clusters which are essentially clusters of galaxy clusters 1/20/16 10:01 AM 1/20/16 10:01 AM


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"

Jennifer McGill UCSF Med School

"Selling my MCAT study guides and notes has been a great source of side revenue while I'm in school. Some months I'm making over $500! Plus, it makes me happy knowing that I'm helping future med students with their MCAT."

Jim McGreen Ohio University

"Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."


"Their 'Elite Notetakers' are making over $1,200/month in sales by creating high quality content that helps their classmates in a time of need."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.