1 2. Descriptive Astronomy ( Astronomy Without a Telescope )
2 How do we locate stars in the heavens? What stars are visible from a given location? Where is the sun in the sky at any given time? Where are you on the Earth?
3 An asterism is two stars that appear To be close in the sky but actually aren t
4 declination less than -53 o not visible from SC - list ( ) In 1930 the International Astronomical Union (IAU) ruled the heavens off into 88 legal, precise constellations. Every star, galaxy, etc., is a member of one of these constellations. Many stars are named according to their constellation and relative brightness (Bayer 1603). Sirius α Centauri, α-canis Majoris, α-orionis Betelgeuse
5 Brief History Some of the current constellations can be traced back to the inhabitants of the Euphrates valley, from whom they were handed down through the Greeks and Arabs. Few pictorial records of the ancient constellation figures have survived, but in the Almagest AD 150, Ptolemy catalogued the positions of 1,022 of the brightest stars both in terms of celestial latitude and longitude, and of their places in 48 constellations. The Ptolemaic constellations left a blank area centered not on the present south pole but on a point which, because of precession, would have been the south pole c BC, a fact that is consistent with the belief that the constellation system had its origin about 5,000 years ago.
6 E.g., ORION " " Betelgeuse and Rigel are! and -Orionis M42 = Orion nebula M43 = DeMairan s nebula
7 Winter Triangle
8 Sirius brightest star in the sky star of about twice the mass of the sun. Blue. Very luminous, very hot. A main sequence star (like the sun) but of Type A1 Procyon 8 th brighest star. About 1.4 solar masses. Another main sequence star. Hotter and more luminous than the sun but not as luminous as Sirius. Type F5. May be close to finishing hydrogen burning as its luminosity is a bit high for its mass. Betelgeuse 9 th brightest star. 2 nd brightest in Orion. Betelgeuse is a red supergiant. It is not fusing hydrogen in its center. It has left the main sequence. May vary in brightness over periods of years by as much as a factor of two. About 18 solar masses and around 10 million years old.
9 Winter Hexagon
10 Orion Nebula: M light years away in the sword of Orion, easily visible to the naked eye. 85 x 60 across and part of a larger cloud spanning 20 degrees *. Diameter ~30 ly, Mass ~ 200,000 solar masses. Your fist at arm s length is about 10 degrees Star Nursery
11 Betelgeuse - red supergiant, about 20 solar masses. May have shrunk 15% in radius since This probably does not indicate evolution at its center. 570 ly away. Variable star times as luminous as the sun Rigel - brightest star in Orion by (a bit more than -Orionis = Betelgeuse a variable) 7th brightest star in the sky. 770 ly. Most luminous star in our region of galaxy. A blue supergiant star, 17 solar masses. Brightness varies by 3 to 30% Triple star system. A is bright. B is a binary. Trapezium - an open cluster of young stars which illuminate the Orion nebula. The 5 brightest are all over 15 solar masses. Three were discovered by Galileo in optical IR *Bayer (1603) designated the brightness of 1564 stars in his Uranometria
12 x 6
13 Motions of stars in the sky North South Polaris is 6 times the distance between the pointers away i.e., ~30 o.
14 Can tell time this way, but a) 24 hr clock b) sidereal time
15 24 hr
16 The apparent location of the sun in the sky as the earth goes round it defines a great circle in the heavens called the ecliptic. The projection of the earth s equator in the sky gives another called the celestial equator. Because the Earth s rotational axis is not perpendicular to the plane containing the earth s orbit around the sun, the planes containing the two circles are not the same but are inclined to each other by 23.5 o.
17 The path of the sun in the sky XI/30 XII/17
18 23.5 o Think of the earth as being at the center of this imaginary celestial sphere
19 Signs of the Zodiac Pisces " The Fishes " March " 12 " to "April " 18" Aries " The Ram " April " 19 " to "May " 13" Taurus " The Bull " May " 14 " to "June " 19" Gemini " The Twins " June " 20 " to "July " 20" Cancer " The Crab " July " 21 " to "August " 9" Leo " The Lion " August " 10 " to "September 15" Virgo " The Maiden " September 16 " to "October " 30" Libra " The Balance " October" 31" to "November 22" Scorpius " The Scorpion " November 23 " to "November 29" Ophiuchus** Serpent-holder " November 30 to December 17" Sagittarius The Archer " December 18 " to "January " 18" Capricornus The Goat " January" 19 " to " February" 15" Aquarius " The Water-bearer February 16 " to " March " 11" Because the planets and sun are all approximately in the same plane, the planets are also found in the constellations of the zodiac.
20 How about the apparent motion of the stars in the sky? If you stood at the earth s north pole, your zenith would be the projection of the earth s rotational axis into the sky. Your horizon would be the celestial equator. The celestial equator is the projection of the Earth s equator into the heavens.
21 8 hr time lapse photo
22 The Daily Motion As the Earth rotates, the sky appears to us to rotate in the opposite direction. The sky appears to rotate around the N (or S) celestial poles. If you are standing at the poles, nothing rises or sets. If you are standing at the equator, everything rises & sets 90 o to the horizon.
23 copied from Nick Strobel s Astronomy notes. See his website. At the equator, stars would all rise perpendicular to the horizon and set perpendicular to the horizon.
24 Panoramic view of the African night from equatorial Kenya. The three hour long exposure was made on a clear, dark, mid November evening facing due west and covers just over 180 degrees along the horizon. So, the South Celestial Pole is at the center of the concentric arcs on the left and the North Celestial Pole is at the far right. The stars setting along the Celestial Equator leave the straight trails near the middle of the picture. Leroy Zimmerman, Astronomy picture of the day November 15, 2002
25 At a lower latitude than the north pole Latitude of Seattle = 47.6 degrees = o = Stars within a certain angle of the north pole would go in circles around the pole and never set. Others have more complicated paths. Some near the south pole remain invisible. Only stars on the celestial equator would rise due east and set due west.
26 Stellar Coordinates Right Ascension and Declination Celestial Equator Projection of the Earth s equator into the sky o o Declination 90 δ + 90 The angle to a star or other object in degrees, minutes, and seconds measured north or south of the Celestial Equator " CE
27 What can be seen from a given location? Polaris Celestial equator (90 o away from poles) = 0 37 o Sometimes visible North 37 o -53 o South 37 o E.g., at Santa Cruz where latitude = 37 o N = = 53 actually latitude of SC is o` South pole The poles and the celestial equator remain fixed in the sky as the earth rotates
28 Stars will be circumpolar, i.e., never set if their declination is δ 90 o L in the northern hemisphere and L = latitude L > 0 δ 90 o L L < 0 in the southern hemisphere. Note that L is negative in the southern hemisphere. At the south pole L = -90. At the north pole L = +90.
29 A star will rise above the horizon sometime in a 24 hour period if δ > L 90 o δ < L + 90 o Where is the declination of the star and L is your latitude. 90 δ L 90 L = -90 is the south pole. L = 90 is the north pole, 37 is Santa Cruz.
30 What can be seen from a given location? Polaris Celestial equator (90 o away from poles) = 0 37 o Sometimes visible North 37 o -53 o South 37 o E.g., at Santa Cruz where latitude = 37 o N = = 53 actually latitude of SC is o` South pole The poles and the celestial equator remain fixed in the sky as the earth rotates
31 90 - L L - 90
32 Brightest Stars
33 Day Solar Declination The Altitude of the Sun March 21 0 June 21 September 21 December o o - To the tropics latitudes below 23.5 o
35 copied from Nick Strobel s Astronomy notes. See his website.
36 How do we assign a location to a star in the sky? We could say so many degrees above the horizon and so many degrees east or west from some point, like the southern direction, but a little thought shows that location would vary with location and time on the Earth.
37 How we define our location on the Earth... Prime Meridian
38 Santa Cruz latitude = 37 o N longitude = 122 o W
39 An important location in the sky, to astronomers, is the Vernal Equinox, where the center of the sun crosses the CE o Vernal equinox
40 The autumnal equinox is in Virgo. Astrologers would say Libra (offset by the precession of the equinoxes).
41 Stellar Coordinates Celestial Equator Projection of the Earth s equator into the sky Declination The angle to a star or other object in degrees, minutes, and seconds measured north or south of the Celestial Equator o o 90 δ + 90 Right Ascension The angle measured eastwards from the Vernal equinox along the Celestial equator to the hour circle of the star. Measured in units of time (1 hour = 15 degrees; 1 minute of time = 15 of angle) h h 0 RA 24
43 Measuring angles in units of time? A convention used in astronomy because of historical reasons. Declination is measured in degrees (and minutes and seconds), but Right Ascension (RA) is measured in hours, minutes, and seconds. 1 hr of RA = 15 degrees of ordinary angular measure (360/24) 1 min of RA = 15/60 = ¼ degree = 15 arc min of angular measure 1 sec of RA = 15/3600 = 1/240 degree = 15 arc sec nb. 0 longitude on Earth is defined by Greenwich England. 0 right ascension in astronomy is defined by the vernal equinox
44 copied from Nick Strobel s Astronomy notes. See his website.
45 Brightest Stars
46 Actual Coordinates of Polaris: Declination = 89 o RA = 2 h 31 m 48.7 s
47 Examples Sirius: -Centauri: = -16 o 43 ; RA = 6 hr 45.2 min = -60 o 50 ; RA = 14 hr 39.6 min How many degrees is 14 hr 39.6 min? 1 hr = 15 degrees 1 min = hr*(15 0 /hr) min (15 /min) = but 594 /60 per degree = 9 o with 54 left over so 14 hr 39.6 min or RA is 219 o 54 East of the Vernal Equinox This is also 360 o 219 o 54 = 140 o 06 West of the Vernal Equinox
48 NAVIGATION Your Celestial Meridian is the imaginary line through your zenith and north (or south pole) from horizon to horizon. Your siderial time is equal to the right ascension of stars on your CM. Your longitude is the difference between your local siderial time and the siderial time in Greenwich. (subtract Greenwich siderial time from your local siderial time). To navigate in the old days your prime need was a good clock (if the sky was clear) and knowledge of the stars.
49 The Longitude Prize was a reward offered by the British government for a simple and practical method for the precise determination of a ships longitude. The prize was established through an act of Parliament (the Longitude Act) in 1714 and was administered by the Board of Longitude
50 E.g. RA of Betelgeuse is 05 55m s Suppose Betelgeuse crosses your CM when the siderial time in Greenwich is midnight (0h 0 m) Your longitude is 5 h 55m or h or degrees You are degrees east of Greenwich. Positive numbers are east (definitely not Santa Cruz; possibly India) (Time is later as you go east, e.g., NY vs Santa Cruz) Aside, the vernal equinox is on your CM at midnight siderial time (not necessarily at night). Siderial time is defined as the hour angle of the vernal equinox.
51 Precession of the Equinoxes
52 1.38 degrees per century
54 As a result of this precession the projection of the earth s equator into the sky - the celestial equator - also moves and this causes an adjustment of the equinoxes. This in turn changes the coordinate system in which a star s location is measured. The vernal equinox drifts westward along the ecliptic about an arc minute per year (actually arc seconds). So when a star s coordinates are given (RA and ), a date must also be given. Current tables use 2000 as a reference point. Corrections to where to point a telescope are discussed at e.g.,
Chapter 3 How Earth and Sky Work- Effects of Latitude In chapters 3 and 4we will learn why our view of the heavens depends on our position on the Earth, the time of day, and the day of the year. We will
Goals: Knowing the Heavens To see how the sky changes during a night and from night to night. To measure the positions of stars in celestial coordinates. To understand the cause of the seasons. Constellations
Chapter 2 Discovering the Universe for Yourself 2.1 Patterns in the Night Sky Our goals for learning: What does the universe look like from Earth? Why do stars rise and set? Why do the constellations we
The celestial sphere, the coordinates system, seasons, phases of the moon and eclipses Chapters 2 and S1 The celestial sphere and the coordinates system Chapter S1 How to find our way in the sky? Let s
CONSTELLATIONS WHAT ARE THE CONSTELLATIONS In popular usage, the term constellation is used to denote a recognizable grouping of stars. Astronomers have redefined the constellations as 88 regions of the
Astronomy 30, Observing #3 Name: Lab Partners: Date: Materials: This lab, with the star chart completed from the pre-lab. Some sheets of paper for sketches. A pencil with eraser. A small flashlight, ideally
Sky, Celestial Sphere and Constellations Last lecture Galaxies are the main building blocks of the universe. Consists of few billions to hundreds of billions of stars, gas clouds (nebulae), star clusters,
Observing the Sky Lecture 8 Chapter 2 Opener 1 Figure 2.1 Figure 2.2 2 Figure 2.6 Figure 2.4 Annotated 3 The Celestial Sphere The celestial sphere is the vast hollow sphere on which the stars appear fixed.
Chapter 2 The Sky Constellations In ancient times, constellations only referred to the brightest stars that appeared to form groups, representing mythological figures. Constellations (2) Today, constellations
Name: Class: _ Date: _ Astro Quiz 2 (ch2) Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Star A has an apparent visual magnitude of 13.4 and star B has
Chapter S1 Celestial Timekeeping and Navigation S1.1 Astronomical Time Periods Our goals for learning:! How do we define the day, month, year, and planetary time periods?! How do we tell the time of day?!
Yr1 Lesson 1 The Great Circles of Astrology, the Angles, Precession, Cosmic Intelligence Agency 2015 Astro Lesson 1! Signs, Symbols, Glyphs and Charts! The Celestial Sphere Great Circles of Astrology -
Sun: rises in the east sets in the west travels on an arc across the sky 24 hours Daily Motions Solar Day = 24 hours Stars: stars travel on arcs in the sky moving from east to west. some stars rise and
AST326, 2010 Winter Semester Celestial Sphere Spectroscopy (Something interesting; e.g., advanced data analyses with IDL) Practical Assignment: analyses of Keck spectroscopic data from the instructor (can
Seasons ASTR 101 2/12/2018 1 What causes the seasons? Perihelion: closest to Sun around January 4 th Northern Summer Southern Winter 147 million km 152 million km Aphelion (farthest to Sun) around July
ClassAction: Coordinates and Motions Module Instructor s Manual Table of Contents Section 1: Warm-up Questions...3 The Sun s Path 1 4 Section 2: General Questions...5 Sledding or Going to the Beach...6
Chapter 2 A User s Guide to the Sky Guidepost Astronomy is about us. As we learn about astronomy, we learn about ourselves. We search for an answer to the question What are we? The quick answer is that
A Sense of Scale and The Motions of Earth The guitar player Pablo Picasso (1910) Announcements n Notes from the first lecture are available on the class web site (www.astro.umass.edu/~calzetti/astro100).
ASTR 101 The Earth and the Sky February 2, 2018 Sky and the atmosphere Twinkling of stars The celestial sphere Constellations Star brightness and the magnitude system Naming of stars Scattering of light
Astronomy 120 Winter 2005 Highlights of Astronomy First Midterm Examination Name: MULTIPLE CHOICE: Choose the one best answer from among the five choices for each of the following 6 questions. Each correct
Guiding Questions Discovering the Night Sky 1 1. What methods do scientists use to expand our understanding of the universe? 2. What makes up our solar system? 3. What are the stars? Do they last forever?
Origin of Modern Astronomy Chapter 21 Early history of astronomy Ancient Greeks Used philosophical arguments to explain natural phenomena Also used some observa:onal data (looking at the night sky) Ancient
ASTR 101 The Earth and the Sky September 3,2017 Sky and the atmosphere Twinkling of stars The celestial sphere Constellations Star brightness and the magnitude system Naming of stars Scattering of light
SOAR: The Sky in Motion Life on the Tilted Teacup Ride Celestial Coordinates and the Day Aileen A. O Donoghue Priest Associate Professor of Physics Reference Points Poles Equator Prime Meridian Greenwich,
Astronomy 291 Professor Bradley M. Peterson The Sky As a first step, we need to understand the appearance of the sky. Important points (to be explained): The relative positions of stars remain the same
Astronomy A BEGINNER S GUIDE TO THE UNIVERSE EIGHTH EDITION CHAPTER 0 Charting the Heavens Lecture Presentation 0.0 Astronmy a why is that subject! Q. What rare astronomical event happened in late summer
Astronomy 100 Name(s): Exercise 2: Timekeeping and astronomy The following exercise illustrates some basic ideas about time, and how our position in the solar system uniquely configures the measurement
Discovering the Universe Astronomy and human culture have always been intertwined Astronomical events day and night, seasons -- have defined the rhythms of human life They have inspired great myths and
Unit 2 Cycles of the Sky The Celestial Sphere Vast distances to stars prevent us from sensing their true 3-D arrangement Naked eye observations treat all stars at the same distance, on a giant celestial
Stars and Planets Stars are fixed relative to each other. They produce their own light which is independent of Sun s location (thus indicating they are very far away - the Greeks understood this) TODAY.
Day, Night & the Seasons Lecture 2 1/21/2014 Logistics The following students see me after class: A. Gonzalez, Chen Anyone who was not here on first day see me after class Pin Numbers - if you have not
//09 Mastering Astronomy Assignment Due Feb 0, am Read Chapter Constellations the 88 semi-rectangular regions that make up the sky Northern constellations have Latinized Greek-mythology names: Orion, Cygnus,
The Night Sky in October, 2016 At the beginning of October, the Sun will rise at 07:12 BST and set at 18:45 BST. By the end of the month it will rise at 07:07 GMT and set at 16:38 GMT. So let s hope for
Time and Diurnal Motion Time and Diurnal Motion A. Geography: mapping the earth 2 B. Equatorial Coordinates C. Local Horizon System Updated April 12, 2006 A. Geography: mapping the earth Geometry: measure
653-8012 LEARNING TO USE THE SIMPLIFIED CELESTISTIAL SPHERE 1.1 INTRODUCTION The instrument that accompanies this guidebook is known as a celestial globe. One major component is an outer globe, which represents
2006 Pearson Prentice Hall Lecture Outlines PowerPoint Chapter 21 Earth Science 11e Tarbuck/Lutgens This work is protected by United States copyright laws and is provided solely for the use of instructors
Stars and Planets Stars are fixed relative to each other. They produce their own light which is independent of Sun s location (thus indicating they are very far away - the Greeks understood this) TODAY.
Time and Diurnal Motion Time and Diurnal Motion A. Geography: mapping the earth 2 B. Equatorial Coordinates C. Local Horizon System Updated 2014Jan11 A. Geography: mapping the earth Geometry: measure the
The Sky Perceptions of the Sky An Observer-Centered Hemisphere Night & Day - Black & Blue - Stars & Sun Atmospheric & Astronomical Phenomena Weather, Clouds, Rainbows,... versus Sun, Moon, Stars, Planets,...
Exercise 7.0 THE CHANGING DIURNAL CIRCLES OF THE SUN I. The Apparent Annual Motion of the Sun A star always rises and sets at the same place on the horizon and, hence, it is above the horizon for the same
Physics 10293 Lab #4: Starry Night Student Exercises I Introduction For today s lab, we are going to let the Starry Night software do much of the work for us. We re going to walk through some of the sample
Coordinate Systems for Astronomy or: How to get your telescope to observe the right object Figure 1: Basic definitions for the Earth Definitions - Poles, Equator, Meridians, Parallels The rotation of the
Practice Exam #3 2002 Ann Bykerk-Kauffman, Dept. of Geological and Environmental Sciences, California State University, Chico * Some Comments on the Real Exam This exam covers all material related to astronomy.
EXPLAINING THE SEASONS AND LOCATING THE NORTH AND SOUTH CELESTIAL POLES Although people are very aware of the seasons, most cannot give a good explanation of why they occur and how they are produced because
1UNIT The Universe What do you remember? What are the points of light in this photo? What is the difference between a star and a planet? a moon and a comet? Content objectives In this unit, you will Learn
UNIT 3: EARTH S MOTIONS After Unit 3 you should be able to: o Differentiate between rotation and revolution of the Earth o Apply the rates of rotation and revolution to basic problems o Recall the evidence
The Earth is a Rotating Sphere The Shape of the Earth Earth s Rotation ( and relative movement of the Sun and Moon) The Geographic Grid Map Projections Global Time The Earth s Revolution around the Sun
Feb2018 BOY SCOUT ASTRONOMY MERIT BADGE WORKSHOP The session is from 8:00am-12:30pm. All pre-requisite questions must be done on your own or with your troop BEFORE 8am on workshop day. Name Troop Leader
Motions in the Sky Stars Planets Sun Moon Photos - APOD 1 STARS: background for motion of other objects patterns - constellations zodiac: special set of constellations trace the apparent path of the Sun
Astronomy AST-1002 Section 0459 Discover the Universe Fall 2017 Instructor: Dr. Francisco Reyes Web Page: http://www.astro.ufl.edu/~freyes/classes/ast1002/index.htm Textbook: Astronomy: A Beginners Guide
Before you Sit Please Pick-up: Blue Information Sheet for Evening Observing. 1 Red and 1 Blue ticket for Observing/ Planetarium Evening Observing Observing at the Brooks Observatory: Three different weeks
Unit 1 Discovering the Heavens I. Introduction to Astronomy A. Celestial Sphere celestial sphere - a model that represents the real sky with the Earth at the center - used to help visualize positions of
Admin. 8/29/17 1. Class website http://www.astro.ufl.edu/~jt/teaching/ast1002/ 2. Optional Discussion sections (start Aug. 30th) (see me at end of lecture if you can t make one of these times)! Tuesday
What motion is responsible for the apparent motion of the constellations (east to west) across the sky? Question 1 1) the motion of Earth around the Sun 2) the motion of the Moon around Earth 3) the motion
3 - Celestial Sphere Purpose: To construct and use a celestial sphere to show the motion of the Sun and stars in the sky. There are six questions, Q1 Q6, to answer on a separate piece of paper. Due: in
Name Bell Date ACTIVITY: Seasons & Constellations Seasons & Constellations * During autumn, we see the constellation Orion in the dark early morning sky. In winter, we see Orion in the night sky. In summer,
Technical Definition of the Ecliptic Calendar by Damon Scott The first version of these definitions was created in the summer of AD 2002. Minor, though still substantial revisions were made in the summer
Name Score Constellations Workbook THE STARS OF AUTUMN (Kings, Queens, Dragons, Princesses, and Heroes) Copyright 1997 by Bob Martino - All rights reserved www.perkins-observatory.org Constellations (from
The Evening Sky in January 2018 Bright stars appear in the eastern half of the evening sky in January. Sirius is the brightest. Left of Sirius are bluish Rigel and orange Betelgeuse, the brightest stars
Why does Earth rotate and what s the evidence? (besides watching it from space ships or satellites) Week 18 January 5, 2015 The sun determines our solar time everywhere on earth as Earth rotates. Can you
Name: Date: Section: Astron 104 Laboratory #2 The Celestial Sphere Basic Setup Once the celestial sphere is properly setup, it will serve as an exact model of the heavens relative to your location on Earth.
Answer Key for Exam C 1 point each Choose the answer that best completes the question. Read each problem carefully and read through all the answers. Take your time. If a question is unclear, ask for clarification
James T. Shipman Jerry D. Wilson Charles A. Higgins, Jr. Chapter 15 Place and Time Place & Time Read sections 15.5 and 15.6, but ignore the math. Concentrate on those sections that help explain the slides.
TAAS Fabulous Fifty Friday April 21, 2017 19:30 MDT (7:30 pm) Ursa Major Photo Courtesy of Naoyuki Kurita All TAAS and other new and not so new astronomers are invited Evening Events 7:30 pm Meet inside
CHAPTER TWO The Measurement of Time Solar Time In antiquity the time of day was measured by the direction of a shadow cast in sunlight. This resulted in the development of a wide variety of sophisticated
8.9 Observing Celestial Objects from Earth Celestial objects are visible from Earth both by day and by night. In the daytime you can see the Sun and, sometimes, the Moon. Looking up at the night sky on
Name Date Bell Motions of the Sun Model Exploration 1. Go to the University of Nebraska-Lincoln Motions of the Sun Simulator: http://astro.unl.edu/naap/motion3/animations/sunmotions.swf 2. This is what
Day, Night & the Seasons Lecture 2 1/15/2013 Logistics The following students see me after class: Dahms, Doyle, Kavalle, Jennings, Melton, Polsky, Soriano, Augustinovich, Briggs Anyone who was not here
REVIEW CH #0 TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false. 1) Right ascension in the sky is very similar to latitude on the Earth. 1) 2) Latitude and right ascension
1 Venus Project Book, the Galileo Project, GEAR Jeffrey La Favre November, 2013 Updated March 31, 2016 You have already learned about Galileo and his telescope. Recall that he built his first telescopes
Last Time on Survey of Astronomy The big picture : The earth is: a single planet around a single star of hundreds of billions of stars. in a single galaxy of hundreds of billions of galaxies. The earth,
The ecliptic and the sidereal motion of the sun Moon and the planets on it. The following picture is a picture of the sky as it looks about noon on May 18 2012. The light of the Sun has been erased artificially
Name: Date: Period: Astronomy The Physical Setting: Earth Science Class Notes: Astronomy I. Apparent Motion Geocentric Universe -! Starts all rotate around the Earth on a single sphere at º/hour Planets
A Review of Coordinates Latitude and Longitude On Earth, one way to describe a location is with a coordinate system which is fixed to the Earth's surface. The system is oriented by the spin axis of the
17 Indoor Lab #2: The Starry Sky Objectives: To tour the sky and explore the way in which it moves, using the sky simulation program Starry Night Pro. Check out the information sheet on SN first, and try
SCIENCE 9 CHAPTER 10 SECTION 1 Observing the Stars (pp. 352-365) Celestial Bodies Celestial body: a natural object in space, such as the Sun, the Moon, a planet, or a star Star: a celestial body of hot
Ch. 2 Discovering the Universe for Yourself 1 2.1 Patterns in the Night Sky Our goals for learning: What does the universe look like from Earth? Why do stars rise and set? 2 What does the universe look
Stars Essential Questions What are stars? What is the apparent visual magnitude of a star? How do we locate stars? How are star classified? How has the telescope changed our understanding of stars? What
SkyGlobe Planetarium Introduction: This exercise will simulate the night sky and demonstrate a number of principles of the celestial sphere and the motions of the Earth and planets. Getting Started: 1.
Kitt Peak Nightly Observing Program Splendors of the Universe on YOUR Night! Many pictures are links to larger versions. Click here for the Best images of the OTOP Gallery and more information. Big Dipper
Thank you for not chewing gum or anything else Materials: Pencil Notebook/Folder January 31, 2014 Agenda: Bell work Constellations Daily Objective: Today we will identify typical objects in our night sky.
Ancient Astronomy Lecture 4 Course website: www.scs.fsu.edu/~dduke/lectures Lecture 4 Almagest Books 7 8 the stars precession the constellations rising and setting and the calendar the background Ptolemy
for Chapter 5 The Cycle of the Sun N.B.: Many of these activities include making observations and recording data in tables over the same span of months. Therefore, review these activities before starting
Equatorial Telescope Mounting Star Catalogs simbad IRSA The Meridian Every line of celestial longitude is a meridian of longitude, but we recognize the line of longitude, or simply the great circle line,
1 ESCI-61 Introduction to Photovoltaic Technology Sun Earth Relationships Ridha Hamidi, Ph.D. Spring (sun aims directly at equator) Winter (northern hemisphere 23.5 tilts away from sun) 2 Solar radiation
T1 T2 T3 T4 T5 SCORE: 150 / 150 + Bonus 2 KEY: Alternative, acceptable answers are given in brackets Bonus: Name NASA s 6 space shuttles 1 bonus point per 3 correct answers. (2 pts total) Atlantis Challenger