×

### Let's log you in.

or

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

×

or

## ASTR 100 Week 3 Notes, Bob Berrington

by: Sarah Gardner

59

1

2

# ASTR 100 Week 3 Notes, Bob Berrington ASTR 100

Marketplace > Ball State University > Astronomy > ASTR 100 > ASTR 100 Week 3 Notes Bob Berrington
Sarah Gardner
BSU
GPA 3.5

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

×
Unlock Preview

Notes covering week 3 material. Ball State Spring 2016, MWF 11:00-11:50, Bob Berrington.
COURSE
Introduction to Astronomy: Solar System and Beyond
PROF.
Dr. Bob Berrington
TYPE
Class Notes
PAGES
2
WORDS
CONCEPTS
astronomy
KARMA
25 ?

## Popular in Astronomy

This 2 page Class Notes was uploaded by Sarah Gardner on Sunday January 31, 2016. The Class Notes belongs to ASTR 100 at Ball State University taught by Dr. Bob Berrington in Fall 2016. Since its upload, it has received 59 views. For similar materials see Introduction to Astronomy: Solar System and Beyond in Astronomy at Ball State University.

×

## Reviews for ASTR 100 Week 3 Notes, Bob Berrington

×

×

### What is Karma?

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

Date Created: 01/31/16
ASTR 100 Section 2, Spring 2016, MWF Section 1 The Cycles of the Sky; Week 3 1/25/16 Mon I. Unit Conversions a. Use multiplicative identity property i. This property means that a number multiplied by 1= [that same number; 1] ii. Aka 12in/1ft= 1 ft or 12 in b. All unit conversions that could be used are in the appendices of the book i. One common one 1. 1 in = 2.54 cm c. Example i. Convert 26.2 miles to kilometers 1. 1.6093 km in one mile 2. 26.2 mi/1 x 1.6093 km/1 mi = 42.2 km 3. Miles cancel each other out (one in the numerator and one in the  denominator d. More Complicated Example i. Convert 5 meters/second to mi/hr ii. Same process iii. 5 m/s x 60 s/1 min x 60min/1 hr x 1 km/1000 m x 1 mi/ 1.6093 km =       11 mi/hr iv. Meters, seconds, and minutes, and kilometers all cancel out to leave mi/hr II. Side Note: Free Planetarium software! a. www.stellarium.org i. Constellation lore ii. Shows constellations in the sky III. The Celestial Sphere a. Stars are further away than others and moving at different speeds in the sky i. Only commonality is that they lie in approximately the same direction  from earth b. The sky appears as a sphere rotating east to west i.   This is called diurnal motion 1.   In other words, it is the rising and setting of celestial objects in the  celestial sphere 2.   If the object rotates E ­> W it’s a westwardly motion a.   Earth rotates East c.   Fiducial Points i.   Fixed points in the sky ii.   The North and South Celestial poles are fiducial points 1.   The celestial poles are the points in the celestial sphere that line up  with earth’s axis IV.      Geocentric Reference Frame a.   Celestial pole (NCP and SCP) are lined up with earth’s axis on the celestial sphere b.   They are fixed reference points in the sky c.   Celestial equator = on the same plane as the earth’s equator V.        The Earthbound observer a.   Horizon i.   Plane of the ground meets celestial sphere ii.   Time and location dependent b.   Zenith i.   Point of the celestial sphere directly aboce the observer ii.   Furthest point from the horizon iii.   Also time and location dependent c.   Nadir i.   Point directly beneath the observer ii.   Yet again time and location dependent d.   Cardinal Points i.   North Point (N or NP) = poin on horizon directly above the NCP ii.   South Point (S) = point on horizon beneath the SCP iii.   East and West Points = intersection of horizon and the celestial equator e.   Meridian  i.   Line from NP, zenith, and SP (a line of longitude) VI.      The Bowl Diagram a.   Lattitude dependency of the Bowl Diragram i.   Positive values = above the horizon ii. Negative values = below the horizon

×

×

### BOOM! Enjoy Your Free Notes!

×

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

Steve Martinelli UC Los Angeles

#### "There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

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."

Steve Martinelli UC Los Angeles

Forbes

#### "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

#### 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