astronomy 161 - Ohio State Astronomy
... (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” ...
PPT
... (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” ...
Models of the sky—11 Sept Changes in the Sky
... The sun “moves” into different constellations of the zodiac during the year. 4. At midnight tonight, which constellation of the zodiac will be high in the sky? A. B. C. D. ...
... The sun “moves” into different constellations of the zodiac during the year. 4. At midnight tonight, which constellation of the zodiac will be high in the sky? A. B. C. D. ...
Study Guide - Experience Astronomy
... A.M. -‐ Ante Meridiem, meaning before the middle of the day Apparent Magnitude -‐ how bright a star appears in our sky The Arctic Circle -‐ the latitude line where the sun doesn’t set on the summer solstice Autumnal (Fall) and Vernal (Spring) Equinoxe ...
... A.M. -‐ Ante Meridiem, meaning before the middle of the day Apparent Magnitude -‐ how bright a star appears in our sky The Arctic Circle -‐ the latitude line where the sun doesn’t set on the summer solstice Autumnal (Fall) and Vernal (Spring) Equinoxe ...
The Celestial sphere
... Constellations are the areas that the sky is divided up into. There are 88 constellations in the whole celestial sphere. Asterisms are found in the constellations; they are the pictures observed by man in the stars. These also appear to be on the celestial sphere. 1. The stars in a constellation are ...
... Constellations are the areas that the sky is divided up into. There are 88 constellations in the whole celestial sphere. Asterisms are found in the constellations; they are the pictures observed by man in the stars. These also appear to be on the celestial sphere. 1. The stars in a constellation are ...
Integrative Studies 410 Our Place in the Universe
... • What: Determine how the height of the sun above the horizon at a specific time is changing as the days pass by measuring the length of the shadow it casts with a gnomon (essentially a stick in the ground). • Time: Once you know how to do it, this only takes a minute per observation. • Commitment: ...
... • What: Determine how the height of the sun above the horizon at a specific time is changing as the days pass by measuring the length of the shadow it casts with a gnomon (essentially a stick in the ground). • Time: Once you know how to do it, this only takes a minute per observation. • Commitment: ...
PHY216_lect1_2014 - Astrophysics Research Institute
... How can you calculate the duration of the exposure in each photograph? ...
... How can you calculate the duration of the exposure in each photograph? ...
6, 19, 24, 37, 47 and 65
... m from the center of the Milky Way galaxy, revolves around that center once every years. Assuming each star in the Galaxy has a mass equal to the Sun’s mass of kg, the stars are distributed uniformly in a sphere about the galactic center, and the Sun is at the edge of that sphere, estimate the numbe ...
... m from the center of the Milky Way galaxy, revolves around that center once every years. Assuming each star in the Galaxy has a mass equal to the Sun’s mass of kg, the stars are distributed uniformly in a sphere about the galactic center, and the Sun is at the edge of that sphere, estimate the numbe ...
The Sky and Its Motion - west
... In about 12,000 years, our pole star will theoretically be Vega, in the constellation Lyra ...
... In about 12,000 years, our pole star will theoretically be Vega, in the constellation Lyra ...
Constellations Reading
... space, intersects the sphere at the celestial equator, dividing it into northern and southern hemispheres. All stars and objects in space, such as constellations, can be mapped relative to the poles and equator of the celestial sphere. Their position north or south of the celestial equator — essenti ...
... space, intersects the sphere at the celestial equator, dividing it into northern and southern hemispheres. All stars and objects in space, such as constellations, can be mapped relative to the poles and equator of the celestial sphere. Their position north or south of the celestial equator — essenti ...
Right Ascension / Declination
... +90 and -90, respectively) A reference point was needed from which to begin measuring longitude (Grenwich, England), and astronomers also had to decide on a point to begin measuring right ascension, so they looked to the path of the Sun. The earth is tilted 23.5 degrees in its orbit around the Sun, ...
... +90 and -90, respectively) A reference point was needed from which to begin measuring longitude (Grenwich, England), and astronomers also had to decide on a point to begin measuring right ascension, so they looked to the path of the Sun. The earth is tilted 23.5 degrees in its orbit around the Sun, ...
Investigating the Celestial Sphere
... or south of the equator. So here in Bury St Edmunds we are around 52° N or 52 degrees above the equator. Sydney Australia is 33.8° S or 33.8 degrees below the equator. Longitude can be given in degrees or hours and is the great circle that goes through both poles and your location. It is given in de ...
... or south of the equator. So here in Bury St Edmunds we are around 52° N or 52 degrees above the equator. Sydney Australia is 33.8° S or 33.8 degrees below the equator. Longitude can be given in degrees or hours and is the great circle that goes through both poles and your location. It is given in de ...
Motions of the Sky—2 Sep Hipparchus measures the moon’s distance~200BC
... 2. How do you explain day and night using the celestial sphere? 3. How do you explain seasonal changes in the sky? ...
... 2. How do you explain day and night using the celestial sphere? 3. How do you explain seasonal changes in the sky? ...
3observing3s
... Equator -Tropic of Capricorn -- 23 1/2 degrees south of the equator, Sun overhead on ...
... Equator -Tropic of Capricorn -- 23 1/2 degrees south of the equator, Sun overhead on ...
Study Guide for 1ST Astronomy Exam
... Unit 3: Astronomical Numbers Convert between cm, m and km, Work in scientific notation, Identify astronomical numbers from a list of such numbers (e.g. the page in the text with Physical and Astronomical Constants and Useful Formulas Unit 5: The Night Sky Draw and label the celestial sphere ...
... Unit 3: Astronomical Numbers Convert between cm, m and km, Work in scientific notation, Identify astronomical numbers from a list of such numbers (e.g. the page in the text with Physical and Astronomical Constants and Useful Formulas Unit 5: The Night Sky Draw and label the celestial sphere ...
Motions of the Celestial Sphere
... in arcs across the sky that are not perpendicular to horizon. ...
... in arcs across the sky that are not perpendicular to horizon. ...
The Celestial Sphere
... The bodies that are visible above the horizon for the full 24 hours. For a body to be circumpolar, two conditions must be met: 1. The declination of the body must have the same name as the observer’s latitude. ...
... The bodies that are visible above the horizon for the full 24 hours. For a body to be circumpolar, two conditions must be met: 1. The declination of the body must have the same name as the observer’s latitude. ...
(Lecture 3). The Solar System in the Night Sky (cont)
... count 365 days, and exactly 365 mean solar days later, as the Sun crosses the Meridian, we celebrate the start of the new year. The trouble is, the Sun has not returned to the same place relative to the stars. It is still 0.25 days away from that point. After the next year, it is half a day, and the ...
... count 365 days, and exactly 365 mean solar days later, as the Sun crosses the Meridian, we celebrate the start of the new year. The trouble is, the Sun has not returned to the same place relative to the stars. It is still 0.25 days away from that point. After the next year, it is half a day, and the ...
Celestial Sphere, Celestial equator, N
... zero degrees being on the equator and 90 degrees being on either the North or South pole. Longitude measures E/W with zero degrees being called the prime meridian – this goes through the North and South poles and Greenwhich UK. On the sky, in order to describe the positions of objects on the celesti ...
... zero degrees being on the equator and 90 degrees being on either the North or South pole. Longitude measures E/W with zero degrees being called the prime meridian – this goes through the North and South poles and Greenwhich UK. On the sky, in order to describe the positions of objects on the celesti ...
The REAL OCCULT - Montgomery College
... PRECESSION CYCLE: originally motion of the first day of a season around the ecliptic, now cycle of the rotation axis (day and night axis) about the year axis (this angle is around 23 ½ degrees now and takes around 26,000 years) GALACTIC YEAR: revolution of solar system about the Galactic center in a ...
... PRECESSION CYCLE: originally motion of the first day of a season around the ecliptic, now cycle of the rotation axis (day and night axis) about the year axis (this angle is around 23 ½ degrees now and takes around 26,000 years) GALACTIC YEAR: revolution of solar system about the Galactic center in a ...
Tutorial: Motion
... If you get stuck or are not sure of your answer ask another group If you get really stuck or don’t understand what the Lecture Tutorial is asking as one of us for help ...
... If you get stuck or are not sure of your answer ask another group If you get really stuck or don’t understand what the Lecture Tutorial is asking as one of us for help ...
Unit 1 Test Review Answers - School District of La Crosse
... 18. The .25 day of the 365.25 days of the year represents: LEAP YEAR 19. Time is based on earth upon: ALL CAN BE USED 20. A star rises at 7:00PM on October 22. At what time would it rise on Halloween? 31-22=9 DAYSX 4MIN/DAY= 36 MIN...7:00-36 MIN=6:24PM ...
... 18. The .25 day of the 365.25 days of the year represents: LEAP YEAR 19. Time is based on earth upon: ALL CAN BE USED 20. A star rises at 7:00PM on October 22. At what time would it rise on Halloween? 31-22=9 DAYSX 4MIN/DAY= 36 MIN...7:00-36 MIN=6:24PM ...
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.