### Create a StudySoup account

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

Already have a StudySoup account? Login here

# CosmicEvolution ASTR1

GPA 3.93

### View Full Document

## 40

## 0

## Popular in Course

## Popular in Astronomy

This 4 page Class Notes was uploaded by Erna Conroy on Monday October 5, 2015. The Class Notes belongs to ASTR1 at City College of San Francisco taught by ToddCarriero in Fall. Since its upload, it has received 40 views. For similar materials see /class/219522/astr1-city-college-of-san-francisco in Astronomy at City College of San Francisco.

## Similar to ASTR1 at

## Popular in Astronomy

## Reviews for CosmicEvolution

### 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: 10/05/15

Mathematical Formulae for Astronomy 1 Each of the following formulae is in this format Name of Formula Mathematical Formula Variable name of variable units in words units abbreviation Variable of Physical Constant name of physical constant number units CHAPTER 1 Conversions of Distances 1 Astronomical unit AU 1495979 x 1011 meters m 1 lightyear 1y 946053 X 1015 meters m 1 parsec pc 3085678 X 1016 meters m Scientific Notation CHAPTER 4 Kepler s Third Law P2 a3 P orbital period years y a semimajor aXis or average distance to Sun Astronomical Units AU Newton s Second Law F ma F force Newtons kilograms meters per second per second N kgm s2 m mass kilograms kg a acceleration meters per second per second In s2 Newton s Law of Universal Gravitation Fgrav Gm1m2 r2 Fgrav force due to gravity N ewtons N G Gravitational constant 667 X 103911 Nm2 kg2 m1 mass of object 1 kilograms kg m2 mass of object 2 kilograms kg r radial distance between two object s centers meters m Newton s form of Kepler s Third Law P2 412 G m1m2 a3 P orbital period seconds s TE 31415927 G Gravitational constant 667 X 103911 Nm2 kg2 m1 mass of object 1 kilograms kg m2 mass of object 2 kilograms kg a semimajor aXis or average distance between m1 and m2 meters m Astronomy 1 Formulaedoc Created on 222004 1251 AM Page 1 of4 CHAPTER 5 Wavelength Frequency relationship 2w c A wavelength meters m Greek letter lambda v frequency Hertz 1 seconds Hz 1 s Greek letter M not a v c speed of all electromagnetic radiation 299792458 meters per second m s Wein s Law Amax x T x Wein s constant 00029 meters X Kelvin mK Amax wavelength of maximum emission meters m T temperature Kelvin K Energy FluX F L 475R2 F energy uX joules second square meters watts square meters W m2 L luminosity joules second watts W TE 31415927 R radius meters m Stefan Boltzmann s Law F 0T4 F energy uX joules second square meters W m2 0 StefanBoltzmann s constant 567 X 10398 W m2K4 T temperature Kelvin K Planck s Law Photon Energy E hc A hv E energy joules J h Planck s constant 6625 X 103934 Js A wavelength meters m v frequency Hertz 1 seconds Hz 1 s Bohr formula for Electron Energy Level transitions 1 A R1 N2 1 n2 2 wavelength meters m R Rydberg s constant 1097 X 107 1 m N energy level number of the inner lower orbit n energy level number of the outer higher orbit Redshift Doppler Effect A A0 A0 vradial c z redshift numbers means away numbers means towards no units A wavelength of moving object meters m A0 wavelength of nonmoving object meters m vradial radial velocity meters second m s c speed of all electromagnetic radiation 299792458 meters second m s Astronomy 1 Formulaedoc Created on 222004 1251 AM Page 2 of4 CHAPTER 16 Energy Mass conversion E mc2 E energy joules J m mass kilograms kg c speed of all electromagnetic radiation 299792458 meters second m s CHAPTER 17 Stellar Parallax d 1 p d distance parsecs pc p parallax angle arcseconds Luminosity Brightness relationship b L 41rd2 b apparent brightness watts square meters W m2 L luminosity watts W TE 31415927 d distance meters m Radial Velocity Wavelength vr c A A0 A0 VI radial velocity meters second m s c speed of all electromagnetic radiation 299792458 meters second m s A wavelength of moving object meters m A0 wavelength of nonmoving object meters m StefanBoltzmann Law combined with Energy Flux L 475R2 0T4 L luminosity watts W TE 31415927 R radius meters m 0 StefanBoltzmann s constant 567 X 10398 W m2K4 T temperature Kelvin K Kepler s Third Law for Binary Star Systems m1 m2 a3 P2 m1 mass of object 1 Solar Masses MG m2 mass of object 2 Solar Masses MG P orbital period years y a semimajor aXis Astronomical units AU CHAPTER 22 Schwarzschild Radius RsCh 2GM 02 RsCh Schwarzschild radius meters m G Gravitational constant 667 X 103911 Nm2 kgz Astronomy 1 Formulaedoc Created on 222004 1251 AM Page 3 of4 M mass kilograms kg 0 speed of all electromagnetic radiation 299792458 meters second m s CHAPTER 24 Hubble Law V Hod V velocity kilometers second km s H0 Hubble s number 71 kilometers per second per Megaparsec km s Mpc d distance to galaxy Megaparsecs Mpc Redshift Doppler Effect z A A0 A0 z redshift numbers means away numbers means towards no units A wavelength of moving object meters m A0 wavelength of nonmoving object meters m CHAPTER 26 Age estimate of the Universe To d v l H0 To age estimate of the universe seconds s d distance meters m v velocity meters second m s H0 Hubble s number kilometers per second per Megaparsec km s Mpc CHAPTER 28 Frank Drake Equation N R f ne f L N number of technologically advanced civilizations no units R Rate of Sunlike stars forming no units fp fraction of stars with planets no units between 0 and 1 n6 number of planets that are Earthlike no units f1 fraction of Earthlike planets with life no units between 0 and 1 fi fraction of life that has become intelligent no units between 0 and 1 f0 fraction of intelligent species technologically civilized no units between 0 and l L lifetime of a civilization no units between 0 and 1 Astronomy 1 Formulaedoc Created on 222004 1251 AM Page 4 of4

### 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

#### "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."

#### "When you're taking detailed notes and trying to help everyone else out in the class, it really helps you learn and understand the material...plus I made $280 on my first study guide!"

#### "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!"

#### "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."

### Refund Policy

#### STUDYSOUP CANCELLATION 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 support@studysoup.com

#### STUDYSOUP REFUND POLICY

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: support@studysoup.com

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 support@studysoup.com

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.