Chapter 2: The Sky
... Celestial Sphere • When we look at the sky, we see stars but have no actual clue as to how far away they are. Therefore it is as if they were all on a sphere out a long distance from us. This conceptual device is known as the celestial sphere. • Distances between objects then are measured in angle ...
... Celestial Sphere • When we look at the sky, we see stars but have no actual clue as to how far away they are. Therefore it is as if they were all on a sphere out a long distance from us. This conceptual device is known as the celestial sphere. • Distances between objects then are measured in angle ...
dtu7ech01 - Fort Thomas Independent Schools
... As viewed from Earth, the celestial sphere appears to rotate around two axis points, the north and south celestial poles, which are located directly above the Earth’s poles. Between these is the celestial equator, which divides the celestial sphere into northern and ...
... As viewed from Earth, the celestial sphere appears to rotate around two axis points, the north and south celestial poles, which are located directly above the Earth’s poles. Between these is the celestial equator, which divides the celestial sphere into northern and ...
UCCS PES 1050 Astronomy 1 WK Spring 2012 Assignment 1 name
... the Moon's orbit is tilted relative to the Earth's orbit around the Sun. sometimes lunar eclipses occur when the Moon is in a different phase. the Moon often produces so much light that it fills in the Earth's shadow. the Moon can only be eclipsed once every 18 years. ...
... the Moon's orbit is tilted relative to the Earth's orbit around the Sun. sometimes lunar eclipses occur when the Moon is in a different phase. the Moon often produces so much light that it fills in the Earth's shadow. the Moon can only be eclipsed once every 18 years. ...
1 - GEOCITIES.ws
... Horizon of the observer– is the great circle having the zenith and the nadir a s the poles. Declination of a point in the celestial sphere – is the angular distance north or south of the celestial equator. It is positive if it is north of the celestial equator and negative if it south of the celesti ...
... Horizon of the observer– is the great circle having the zenith and the nadir a s the poles. Declination of a point in the celestial sphere – is the angular distance north or south of the celestial equator. It is positive if it is north of the celestial equator and negative if it south of the celesti ...
celestial sphere.
... (3) The celestial sphere appears to rotate about the celestial poles (1 day cycle) Observation: Stars, Sun, Moon and planets move in counterclockwise circles around north (south) celestial pole. Objects near the celestial equator move east to west when above the horizon (“rising” in east, “setting” ...
... (3) The celestial sphere appears to rotate about the celestial poles (1 day cycle) Observation: Stars, Sun, Moon and planets move in counterclockwise circles around north (south) celestial pole. Objects near the celestial equator move east to west when above the horizon (“rising” in east, “setting” ...
Jeopardy 2015
... 100 billion stars The Milky Way Contains which of the following: 100,000 stars 100 million stars 100 Billion stars ...
... 100 billion stars The Milky Way Contains which of the following: 100,000 stars 100 million stars 100 Billion stars ...
Day-7
... Work with a partner Read the instructions and questions carefully Discuss your answers with each other. ...
... Work with a partner Read the instructions and questions carefully Discuss your answers with each other. ...
Presentation 2
... • Celestial north pole stays still (North star aka Polaris) • Stars appear to move in counterclockwise fashion. ...
... • Celestial north pole stays still (North star aka Polaris) • Stars appear to move in counterclockwise fashion. ...
Constellations
... interpretation of stars and planets based on the premise that there is a relationship between astronomical phenomena and events in the human world. ...
... interpretation of stars and planets based on the premise that there is a relationship between astronomical phenomena and events in the human world. ...
Celestial Globes Armillary Spheres
... This enabled astronmers to follow stars, see when the sun was about to rise or set and find the position of the earth by viewing the night sky, possibly using the north star. ...
... This enabled astronmers to follow stars, see when the sun was about to rise or set and find the position of the earth by viewing the night sky, possibly using the north star. ...
03jan13.ppt - Institute for Astronomy
... Elements of the equatorial coordinate system on the celestial sphere • Vernal Equinox: The position of the Sun on the first day of spring (Sets the prime meridian) • Right Ascension: How far east of the Vernal Equinox an object is located – measured as time! (longitude) ...
... Elements of the equatorial coordinate system on the celestial sphere • Vernal Equinox: The position of the Sun on the first day of spring (Sets the prime meridian) • Right Ascension: How far east of the Vernal Equinox an object is located – measured as time! (longitude) ...
Astronomy I – Vocabulary you need to know:
... derived from ancient mythology. The heavens are divided into 88 constellations. Declination – Analogous to latitude on Earth it is the angular distance of a celestial body from the celestial equator. It is measured north and south of the celestial equator. Ecliptic – The apparent annual path of the ...
... derived from ancient mythology. The heavens are divided into 88 constellations. Declination – Analogous to latitude on Earth it is the angular distance of a celestial body from the celestial equator. It is measured north and south of the celestial equator. Ecliptic – The apparent annual path of the ...
(Diurnal) Motion of the Sky A star`s daily path is its diurnal circle
... North and South Celestial Poles [figures 2.2, 2.3, 2.1, 2.8] the points directly above earth’s geographic poles these points have no diurnal motion Polaris is about 3/4 º from the actual celestial pole Celestial Equator: 90 º from poles [figure2.4, 2.8] Meridian: the great circle passing through bot ...
... North and South Celestial Poles [figures 2.2, 2.3, 2.1, 2.8] the points directly above earth’s geographic poles these points have no diurnal motion Polaris is about 3/4 º from the actual celestial pole Celestial Equator: 90 º from poles [figure2.4, 2.8] Meridian: the great circle passing through bot ...
Astronomy Chap 1
... 5. Explain how angular height of the Sun in different parts of the country correlate with sunburns. What is the critical angle? 6. Review the Solar Motion Demonstrator Activities. Chapter 2: The Nighttime Sky 1. How would you describe the motion of the stars visible at night? 2. How would the motion ...
... 5. Explain how angular height of the Sun in different parts of the country correlate with sunburns. What is the critical angle? 6. Review the Solar Motion Demonstrator Activities. Chapter 2: The Nighttime Sky 1. How would you describe the motion of the stars visible at night? 2. How would the motion ...
Lab 1: The Celestial Sphere
... 2. The point where the rod holding the Earth hits the bottom of the outer globe is the south celestial pole. Opposite to this is the northern celestial pole. These are simply extensions of the poles of the Earth. 3. The place where the two outer hemispheres meet is known as the celestial equator. Th ...
... 2. The point where the rod holding the Earth hits the bottom of the outer globe is the south celestial pole. Opposite to this is the northern celestial pole. These are simply extensions of the poles of the Earth. 3. The place where the two outer hemispheres meet is known as the celestial equator. Th ...
Early history of astronomy
... Equatorial system of location • A coordinate system that divides the celestial sphere • Similar to the latitude-longitude system that is used on Earth's surface • Two locational components • Declination – the angular distance north or south of the celestial equator • Right Ascension – the angular d ...
... Equatorial system of location • A coordinate system that divides the celestial sphere • Similar to the latitude-longitude system that is used on Earth's surface • Two locational components • Declination – the angular distance north or south of the celestial equator • Right Ascension – the angular d ...
Celestial Sphere Lab
... longitude and run from the north celestial pole to the south celestial pole. (The north and south celestial poles (NCP) and (SCP) are just projections of Earth’s north and south poles out into space.) Lines of Dec are like lines of latitude and run parallel to the equator. For example, Dec 40 degree ...
... longitude and run from the north celestial pole to the south celestial pole. (The north and south celestial poles (NCP) and (SCP) are just projections of Earth’s north and south poles out into space.) Lines of Dec are like lines of latitude and run parallel to the equator. For example, Dec 40 degree ...
PDF Format
... Celestial navigattion made simple At Earth’s North Pole: P l i is Polaris i directly di l overh h d head At Earth’s Earth s Equator: Polaris is due north, on the t horizon In Earth’s Northern hem misphere: Polaris is due north - height above the horizon (in degrees) is equal to your y latitude (in ...
... Celestial navigattion made simple At Earth’s North Pole: P l i is Polaris i directly di l overh h d head At Earth’s Earth s Equator: Polaris is due north, on the t horizon In Earth’s Northern hem misphere: Polaris is due north - height above the horizon (in degrees) is equal to your y latitude (in ...
Coordinate System Notes 3 - School District of La Crosse
... A. Celestial sphere- An imaginary sphere which places all celestial objects the same distance. B. Celestial equator- an extension of the earth’s equator onto the celestial sphere. C. celestial pole- An extension of the earth’s axis onto the celestial sphere D. The stars appear to rotate once every 2 ...
... A. Celestial sphere- An imaginary sphere which places all celestial objects the same distance. B. Celestial equator- an extension of the earth’s equator onto the celestial sphere. C. celestial pole- An extension of the earth’s axis onto the celestial sphere D. The stars appear to rotate once every 2 ...
Early Astronomy
... proposed a Sun-centered universe, but could not provide observational support for his ideas. ...
... proposed a Sun-centered universe, but could not provide observational support for his ideas. ...
5.1-The process of Science - Homework
... and a way to figure out when the sun/star crosses the meridian. ...
... and a way to figure out when the sun/star crosses the meridian. ...
explaining the seasons and locating the north and south celestial
... DEC=+6.980. The above formula gives the close approximation of DEC=23.8sin(35π/365.5)=6.970 for x=17.5 days after the spring equinox. Notice that if the earth’s tilt angle were zero, then the sun’s declination would remain unchanged throughout the year and there would be no seasons. Next let us look ...
... DEC=+6.980. The above formula gives the close approximation of DEC=23.8sin(35π/365.5)=6.970 for x=17.5 days after the spring equinox. Notice that if the earth’s tilt angle were zero, then the sun’s declination would remain unchanged throughout the year and there would be no seasons. Next let us look ...
Armillary sphere
An armillary sphere (variations are known as spherical astrolabe, armilla, or armil) is a model of objects in the sky (in the celestial sphere), consisting of a spherical framework of rings, centred on Earth or the Sun, that represent lines of celestial longitude and latitude and other astronomically important features such as the ecliptic. As such, it differs from a celestial globe, which is a smooth sphere whose principal purpose is to map the constellations.With the Earth as center, an armillary sphere is known as Ptolemaic. With the sun as center, it is known as Copernican.