Galileo`s The Starry Messenger
... Great indeed are the things which in this brief treatise I propose for observation and consideration by all students of nature. I say great, because of the excellence of the subject itself, the entirely unexpected and novel character of these things, and finally because of the instrument by means of ...
... Great indeed are the things which in this brief treatise I propose for observation and consideration by all students of nature. I say great, because of the excellence of the subject itself, the entirely unexpected and novel character of these things, and finally because of the instrument by means of ...
Directed Reading
... ______ 9. How can scientists deduce the temperature, density, and pressure of a gas in a star’s surface? a. by studying the spectrum of the star b. by studying the spectrum of nearby stars c. by studying the brightness of the star d. by calculating the size of the star ______ 10. To identify the ele ...
... ______ 9. How can scientists deduce the temperature, density, and pressure of a gas in a star’s surface? a. by studying the spectrum of the star b. by studying the spectrum of nearby stars c. by studying the brightness of the star d. by calculating the size of the star ______ 10. To identify the ele ...
Celestial Astro II
... The Earth’s axis is tilted 23.5° from being perpendicular to the ecliptic plane. Therefore, the celestial equator is tilted 23.5° to the ecliptic. As seen from Earth, the Sun spends 6 months north of the celestial equator and 6 months south of the celestial equator. Seasons are caused by the E ...
... The Earth’s axis is tilted 23.5° from being perpendicular to the ecliptic plane. Therefore, the celestial equator is tilted 23.5° to the ecliptic. As seen from Earth, the Sun spends 6 months north of the celestial equator and 6 months south of the celestial equator. Seasons are caused by the E ...
Astronomy Part 1 Regents Questions
... space slightly larger than the solar system. D) They may contain billions of stars in a space much larger than our solar system. ...
... space slightly larger than the solar system. D) They may contain billions of stars in a space much larger than our solar system. ...
Galileo
... Great indeed are the things which in this brief treatise I propose for observation and consideration by all students of nature. I say great, because of the excellence of the subject itself, the entirely unexpected and novel character of these things, and finally because of the instrument by means of ...
... Great indeed are the things which in this brief treatise I propose for observation and consideration by all students of nature. I say great, because of the excellence of the subject itself, the entirely unexpected and novel character of these things, and finally because of the instrument by means of ...
PowerPoint Presentation - 5. Universal Laws of Motion
... Using the calculus, Newton was able to derive Kepler’s Third Law from his own Law of Gravity. In its most general form: ...
... Using the calculus, Newton was able to derive Kepler’s Third Law from his own Law of Gravity. In its most general form: ...
13. Right Ascension and Declination
... time ‘drifts’ relative to solar time: they are synchronised on the day of the vernal equinox (usually on or around 21st March), and are displaced relative to each other by half a sidereal day 6 months later, and a full sidereal day 12 months later. Therefore, a year is 365¼ solar days and 366¼ sider ...
... time ‘drifts’ relative to solar time: they are synchronised on the day of the vernal equinox (usually on or around 21st March), and are displaced relative to each other by half a sidereal day 6 months later, and a full sidereal day 12 months later. Therefore, a year is 365¼ solar days and 366¼ sider ...
MS Word version
... Question 3: The ellipse to the right has an eccentricity of about a) .25 b) .5 c) .75 d) .9 Question 4: For a planet in an elliptical orbit to “sweep out equal areas in equal amounts of time” it must a) move slowest when near the sun. b) move fastest when near the sun. c) move at the same speed at a ...
... Question 3: The ellipse to the right has an eccentricity of about a) .25 b) .5 c) .75 d) .9 Question 4: For a planet in an elliptical orbit to “sweep out equal areas in equal amounts of time” it must a) move slowest when near the sun. b) move fastest when near the sun. c) move at the same speed at a ...
Astronomy Exam Notes.docx
... 16. Why should galaxy collisions have been more common in the past than they are today? a) galaxies were more active in the past and therefore would have collided with each other more frequently b) galaxies were much bigger in the past since they had not contracted completely c) galaxies were closer ...
... 16. Why should galaxy collisions have been more common in the past than they are today? a) galaxies were more active in the past and therefore would have collided with each other more frequently b) galaxies were much bigger in the past since they had not contracted completely c) galaxies were closer ...
Lecture02: Astronomical Distance
... object from two different locations on Earth. The distance d is determined by the baseline length B and angle p (parallax) as: d = B/tan(p) or simply: d = B/p when d >> B The scale of solar system was first determined by trigonometric parallax. A greater distance (d) can be determined with a longer ...
... object from two different locations on Earth. The distance d is determined by the baseline length B and angle p (parallax) as: d = B/tan(p) or simply: d = B/p when d >> B The scale of solar system was first determined by trigonometric parallax. A greater distance (d) can be determined with a longer ...
- newmanlib.ibri.org
... universe is not infinite), OR the really distant stars whose images would cover every speck of the sky have not been burning long enough for their light to get here yet (so the universe hasn't always existed). 3. The visible universe is probably only some 10-20 billion years old. This appears to be ...
... universe is not infinite), OR the really distant stars whose images would cover every speck of the sky have not been burning long enough for their light to get here yet (so the universe hasn't always existed). 3. The visible universe is probably only some 10-20 billion years old. This appears to be ...
The scale of the Universe (along with units and scientific notation)
... the Earth would be the size of the point of a pen 15m away (that’s 50ft) ...
... the Earth would be the size of the point of a pen 15m away (that’s 50ft) ...
Ptolemy*s Fixed Equant
... “ C O N S T R U C TI V I S M A C R O S S I S L A M O EUROPEAN BOUNDARIES IN THE ...
... “ C O N S T R U C TI V I S M A C R O S S I S L A M O EUROPEAN BOUNDARIES IN THE ...
Slide 1
... Uranus and Neptune Uranus is the seventh planet from the Sun, but it is the coldest at -224˚C. Neptune is slightly warmer at -200˚C. This is because, although Neptune gets less light and heat from the Sun, Neptune generates more heat in its core. Neptune actually gives off 2.6 times more heat than ...
... Uranus and Neptune Uranus is the seventh planet from the Sun, but it is the coldest at -224˚C. Neptune is slightly warmer at -200˚C. This is because, although Neptune gets less light and heat from the Sun, Neptune generates more heat in its core. Neptune actually gives off 2.6 times more heat than ...
A short history of astronomy and telescopes
... Caltech and the University of California • “prototype” Keck 1 was a spectacular success • One attractive aspect to segmented approach was scalability of the concept to even larger primary mirrors ...
... Caltech and the University of California • “prototype” Keck 1 was a spectacular success • One attractive aspect to segmented approach was scalability of the concept to even larger primary mirrors ...
Scientific Inquiry Performance Task: Sun, Air, Land and Water
... 11. Gather class together after everyone has had a chance to record their findings. Have kids compare their notes about what observed in each of the cups. Discuss why if any of the results are different from each other? (Results may vary because different times of day, different days data was collec ...
... 11. Gather class together after everyone has had a chance to record their findings. Have kids compare their notes about what observed in each of the cups. Discuss why if any of the results are different from each other? (Results may vary because different times of day, different days data was collec ...
Astronomy - Troop 179
... b. Describe the similarities and differences of several types of astronomical telescopes. c. Explain the purposes of at least three instruments used with astronomical telescopes. 4. Do the following: Material is covered during the program and the scout will be required to describe the appropriate in ...
... b. Describe the similarities and differences of several types of astronomical telescopes. c. Explain the purposes of at least three instruments used with astronomical telescopes. 4. Do the following: Material is covered during the program and the scout will be required to describe the appropriate in ...
earth science
... Base your answers to questions 48 through 50 on the passage and map below and on your knowledge of Earth science. The map shows the location of the Marcellus shale formation in New York State. The Marcellus Shale The Marcellus shale is a black shale formation that was formed during the Middle Devon ...
... Base your answers to questions 48 through 50 on the passage and map below and on your knowledge of Earth science. The map shows the location of the Marcellus shale formation in New York State. The Marcellus Shale The Marcellus shale is a black shale formation that was formed during the Middle Devon ...
Study Guide for Earth Science Final
... 71. What are isobars? How can you tell where the wind speeds will be the highest? ...
... 71. What are isobars? How can you tell where the wind speeds will be the highest? ...
Identifying the rotation rate and the presence of dynamic
... observer. For each time series, we perform an autocorrelation analysis. For example, in Figure 3, the black curve shows the autocorrelation as a function of the time lag based on a simulated data series for an Earth without any cloud cover. We assume the i = 90◦ viewing geometry described in §2.2 an ...
... observer. For each time series, we perform an autocorrelation analysis. For example, in Figure 3, the black curve shows the autocorrelation as a function of the time lag based on a simulated data series for an Earth without any cloud cover. We assume the i = 90◦ viewing geometry described in §2.2 an ...
Origin of the Earth and of the Solar System
... A Supernova is a gigantic explosion of a massive star after gravitational collapse (if no more energy can be gained by nuclear fusion). At maximum a Supernova can be brighter than a whole galaxy. The outer layers are expelled, while the center collapses to a Neutron Star or even to a Black Hole. All ...
... A Supernova is a gigantic explosion of a massive star after gravitational collapse (if no more energy can be gained by nuclear fusion). At maximum a Supernova can be brighter than a whole galaxy. The outer layers are expelled, while the center collapses to a Neutron Star or even to a Black Hole. All ...
Our Star, the Sun
... In the core of the Sun hydrogen is being converted to helium When the entire core is converted to helium, stellar death begins o Alfer, Beth, and Gamow – Gamow proposed the cycle, Alfer helped out, and Beth was just Gamow’s friend that did nothing, but was listed on there to make a joke o Known ...
... In the core of the Sun hydrogen is being converted to helium When the entire core is converted to helium, stellar death begins o Alfer, Beth, and Gamow – Gamow proposed the cycle, Alfer helped out, and Beth was just Gamow’s friend that did nothing, but was listed on there to make a joke o Known ...
Astronomy - Career Account Web Pages
... With this view, astronomers would need about 50 Ultra Deep Fields to cover the entire Moon. Hubble's keen vision (0.085 arc seconds) is equivalent to standing at the U.S. Capitol and seeing the date on a 400 m (1/4 mile) away at the ...
... With this view, astronomers would need about 50 Ultra Deep Fields to cover the entire Moon. Hubble's keen vision (0.085 arc seconds) is equivalent to standing at the U.S. Capitol and seeing the date on a 400 m (1/4 mile) away at the ...
Document
... Why larger semi-major axes now? Kepler’s third law implies longer period, so requires monitoring for many years to determine ‘wobble’ precisely Amplitude of wobble smaller (at fixed mP ); benefit of improved spectroscopic precision ...
... Why larger semi-major axes now? Kepler’s third law implies longer period, so requires monitoring for many years to determine ‘wobble’ precisely Amplitude of wobble smaller (at fixed mP ); benefit of improved spectroscopic precision ...
our brightest star - El Camino College
... Most of the light we see from the Sun is emitted because the Sun resembles a blackbody. That means the Sun shines light because it is hot. There are two important properties of blackbodies. One (Stefan’s law) is that hotter things shine more light. (Mathematically, the power emitted per area depends ...
... Most of the light we see from the Sun is emitted because the Sun resembles a blackbody. That means the Sun shines light because it is hot. There are two important properties of blackbodies. One (Stefan’s law) is that hotter things shine more light. (Mathematically, the power emitted per area depends ...
Geocentric model
In astronomy, the geocentric model (also known as geocentrism, or the Ptolemaic system) is a description of the cosmos where Earth is at the orbital center of all celestial bodies. This model served as the predominant cosmological system in many ancient civilizations such as ancient Greece including the noteworthy systems of Aristotle (see Aristotelian physics) and Ptolemy. As such, they believed that the Sun, Moon, stars, and naked eye planets circled Earth.Two commonly made observations supported the idea that Earth was the center of the Universe. The stars, the sun, and planets appear to revolve around Earth each day, making Earth the center of that system. The stars were thought to be on a celestial sphere, with the earth at its center, that rotated each day, using a line through the north and south pole as an axis. The stars closest to the equator appeared to rise and fall the greatest distance, but each star circled back to its rising point each day. The second observation supporting the geocentric model was that the Earth does not seem to move from the perspective of an Earth-bound observer, and that it is solid, stable, and unmoving.Ancient Roman and medieval philosophers usually combined the geocentric model with a spherical Earth. It is not the same as the older flat Earth model implied in some mythology, as was the case with the biblical and postbiblical Latin cosmology. The ancient Jewish Babylonian uranography pictured a flat Earth with a dome-shaped rigid canopy named firmament placed over it. (רקיע- rāqîa').However, the ancient Greeks believed that the motions of the planets were circular and not elliptical, a view that was not challenged in Western culture until the 17th century through the synthesis of theories by Copernicus and Kepler.The astronomical predictions of Ptolemy's geocentric model were used to prepare astrological and astronomical charts for over 1500 years. The geocentric model held sway into the early modern age, but from the late 16th century onward was gradually superseded by the heliocentric model of Copernicus, Galileo and Kepler. There was much resistance to the transition between these two theories. Christian theologians were reluctant to reject a theory that agreed with Bible passages (e.g. ""Sun, stand you still upon Gibeon"", Joshua 10:12 – King James 2000 Bible). Others felt a new, unknown theory could not subvert an accepted consensus for geocentrism.