Chapter 30 Notes
... The day and the year, as units of time, are based upon the motion of the earth. Modern calendars also add one day every four years to account for the fraction of a day travelled by Earth around the sun with a leap year. Earth’s rotation (around its axis) causes day and night, Earth’s revolutio ...
... The day and the year, as units of time, are based upon the motion of the earth. Modern calendars also add one day every four years to account for the fraction of a day travelled by Earth around the sun with a leap year. Earth’s rotation (around its axis) causes day and night, Earth’s revolutio ...
apparent magnitude
... English amateur astronomer William Herschel in 1781. •The atmosphere of Uranus is mainly hydrogen and methane. •Because these gases absorb the red part of sunlight very strongly, Uranus appears blue-green in color. •Uranus and Neptune have much less mass than Jupiter, but their densities are similar ...
... English amateur astronomer William Herschel in 1781. •The atmosphere of Uranus is mainly hydrogen and methane. •Because these gases absorb the red part of sunlight very strongly, Uranus appears blue-green in color. •Uranus and Neptune have much less mass than Jupiter, but their densities are similar ...
The Inner Planets
... Atmosphere of Mars Much thinner than Earth’s Composed of mostly carbon dioxide, some nitrogen, and argon. This leads to temperature on the surface ranging from 35 C, 95 F to –170 C, -274 F. There are also strong winds storms that can cover the entire planet at one time. ...
... Atmosphere of Mars Much thinner than Earth’s Composed of mostly carbon dioxide, some nitrogen, and argon. This leads to temperature on the surface ranging from 35 C, 95 F to –170 C, -274 F. There are also strong winds storms that can cover the entire planet at one time. ...
Word
... lines, found that the material is orbiting at 550 km/sec at a distance of 40 pc from the center of that galaxy. Use Kepler’s Third Law to calculate the black hole’s mass to two significant figures. Also, comment on the assumptions inherent in this calculation and the effects these may have on the ac ...
... lines, found that the material is orbiting at 550 km/sec at a distance of 40 pc from the center of that galaxy. Use Kepler’s Third Law to calculate the black hole’s mass to two significant figures. Also, comment on the assumptions inherent in this calculation and the effects these may have on the ac ...
HOMEWORK #1
... lines, found that the material is orbiting at 550 km/sec at a distance of 40 pc from the center of that galaxy. Use Kepler’s Third Law to calculate the black hole’s mass to two significant figures. Also, comment on the assumptions inherent in this calculation and the effects these may have on the ac ...
... lines, found that the material is orbiting at 550 km/sec at a distance of 40 pc from the center of that galaxy. Use Kepler’s Third Law to calculate the black hole’s mass to two significant figures. Also, comment on the assumptions inherent in this calculation and the effects these may have on the ac ...
ph512-10-lec5
... measurements and explanations of the positions and movements of stars and other celestial bodies. Although once thought of as an esoteric field with little useful application for the future, the information obtained by astrometric measurements is now very important in contemporary research into the ...
... measurements and explanations of the positions and movements of stars and other celestial bodies. Although once thought of as an esoteric field with little useful application for the future, the information obtained by astrometric measurements is now very important in contemporary research into the ...
Earth`s Rotation
... So Earth’s actual rotational speed is 15°/hour Because Earth is rotating 15° every hour, this makes objects in our sky (the sun, the moon, stars) appear to move at this same speed (15°/hour). – This is the difference between “actual motion” and “apparent motion” ...
... So Earth’s actual rotational speed is 15°/hour Because Earth is rotating 15° every hour, this makes objects in our sky (the sun, the moon, stars) appear to move at this same speed (15°/hour). – This is the difference between “actual motion” and “apparent motion” ...
Why do things move?
... •Stars remain in the same relative position to one another as they move across the sky. •Several bright “stars” exhibit motion relative to other stars. •Bright “wanderers” called planets. •Planets roam in regular but curious manner. Hypothesis: •Geocentric “Earth-centered” universe! •Sun moves aroun ...
... •Stars remain in the same relative position to one another as they move across the sky. •Several bright “stars” exhibit motion relative to other stars. •Bright “wanderers” called planets. •Planets roam in regular but curious manner. Hypothesis: •Geocentric “Earth-centered” universe! •Sun moves aroun ...
3 The Outer Planets
... Neptune is the fourth largest planet in the solar system. Like the other gas giants, Neptune is made up mostly of hydrogen, helium, and small amounts of other gases. It has a deep blue color, which is caused by methane in its atmosphere. Methane absorbs the red light so more blue light is reflected ...
... Neptune is the fourth largest planet in the solar system. Like the other gas giants, Neptune is made up mostly of hydrogen, helium, and small amounts of other gases. It has a deep blue color, which is caused by methane in its atmosphere. Methane absorbs the red light so more blue light is reflected ...
Introduction to Astronomy
... Lesson 6: Inside the Earth: Rocks and Minerals There are many different types of rock on our planet. These can be divided into three groups: metamorphic, igneous and sedimentary. The category a rock goes into is dependent on how it was formed. Igneous means ‘made by fire’ – for example, granite. So ...
... Lesson 6: Inside the Earth: Rocks and Minerals There are many different types of rock on our planet. These can be divided into three groups: metamorphic, igneous and sedimentary. The category a rock goes into is dependent on how it was formed. Igneous means ‘made by fire’ – for example, granite. So ...
Habitability of the Goldilocks planet Gliese 581g: results from
... span strongly depends on the relative continental area r and increases with decreasing r. Therefore, “water worlds” are favored in the facilitation of habitability as previously obtained in models of fictitious Earth-mass planets for 47 UMa and 55 Cnc (Cuntz et al. 2003; Franck et al. 2003; von Bloh ...
... span strongly depends on the relative continental area r and increases with decreasing r. Therefore, “water worlds” are favored in the facilitation of habitability as previously obtained in models of fictitious Earth-mass planets for 47 UMa and 55 Cnc (Cuntz et al. 2003; Franck et al. 2003; von Bloh ...
Methods for the detection of exoplanets
... depends on the presence and composition of the atmosphere (greenhouse effect - GE). On EARTH: GE raises temperature by ~32 °C ...
... depends on the presence and composition of the atmosphere (greenhouse effect - GE). On EARTH: GE raises temperature by ~32 °C ...
ESSAY - First Earth-Like Exoplanet Found in Habitable Zone
... planet in the "habitable zone," the region around a star where liquid water could exist on a planet's surface. Kepler also has discovered more than 1,000 new planet candidates, nearly doubling its previously known count. Ten of these candidates are near-Earth-size and orbit in the habitable zone of ...
... planet in the "habitable zone," the region around a star where liquid water could exist on a planet's surface. Kepler also has discovered more than 1,000 new planet candidates, nearly doubling its previously known count. Ten of these candidates are near-Earth-size and orbit in the habitable zone of ...
Day-11
... the idea of “uniform circular motion.” • Objects moved in perfect circles at uniform speeds. ...
... the idea of “uniform circular motion.” • Objects moved in perfect circles at uniform speeds. ...
some interesting facts about planets
... A planet may look round ,but it is actually shaped like a spheroid. It actually looks like a squashed ball. ...
... A planet may look round ,but it is actually shaped like a spheroid. It actually looks like a squashed ball. ...
`It`s Raining, It`s Pouring`
... considerably denser atmosphere and icy surface, although both surfaces are of a solid consistency. It is also suggested by experts in the field that up to one third of solar systems could contain super-Earths. Modelling has been carried out by Gaudi, and other scientists Eric Gaidos and Sara Seager, ...
... considerably denser atmosphere and icy surface, although both surfaces are of a solid consistency. It is also suggested by experts in the field that up to one third of solar systems could contain super-Earths. Modelling has been carried out by Gaudi, and other scientists Eric Gaidos and Sara Seager, ...
PHYSICS 1500 - The University of Sydney
... (b) Despite having a molten core, Venus does not support a significant magnetic field. Describe the most probable physical cause for this dramatic difference between Venus and Earth. (c) ...
... (b) Despite having a molten core, Venus does not support a significant magnetic field. Describe the most probable physical cause for this dramatic difference between Venus and Earth. (c) ...
PH507 - University of Kent
... 3. Taking Deneb to have a surface temperature of 8,500K and a radius of 200 solar radii, determine the present spectral class and luminosity class of Deneb. Investigate and state the stages through which Deneb is expected to progress. State the name of the pre-main-sequence track that Deneb would ha ...
... 3. Taking Deneb to have a surface temperature of 8,500K and a radius of 200 solar radii, determine the present spectral class and luminosity class of Deneb. Investigate and state the stages through which Deneb is expected to progress. State the name of the pre-main-sequence track that Deneb would ha ...
Skymapper and Kepler K2: Finding the Origin of Hot Gas Giants
... Planet formation with migraiton where one set of initial conditions gives the solar system and another gives a solitary hot Jupiter. ...
... Planet formation with migraiton where one set of initial conditions gives the solar system and another gives a solitary hot Jupiter. ...
pdf - Starchitect
... to extinction events. Moons come next, since they are often formed over material that didn’t collapse into the main planet. There is a hidden Feat here: if a player tries to create a moon too close the plane it will be unable to form, and a ring system will result. This minimum distance is called th ...
... to extinction events. Moons come next, since they are often formed over material that didn’t collapse into the main planet. There is a hidden Feat here: if a player tries to create a moon too close the plane it will be unable to form, and a ring system will result. This minimum distance is called th ...
Homework 1
... Which of the following correctly lists our ‘cosmic address’ from small to large? (a) Earth, solar system, Milky Way Galaxy, Local Group, Local Supercluster, universe. ...
... Which of the following correctly lists our ‘cosmic address’ from small to large? (a) Earth, solar system, Milky Way Galaxy, Local Group, Local Supercluster, universe. ...
Rare Earth hypothesis
In planetary astronomy and astrobiology, the Rare Earth Hypothesis argues that the origin of life and the evolution of biological complexity such as sexually reproducing, multicellular organisms on Earth (and, subsequently, human intelligence) required an improbable combination of astrophysical and geological events and circumstances. The hypothesis argues that complex extraterrestrial life is a very improbable phenomenon and likely to be extremely rare. The term ""Rare Earth"" originates from Rare Earth: Why Complex Life Is Uncommon in the Universe (2000), a book by Peter Ward, a geologist and paleontologist, and Donald E. Brownlee, an astronomer and astrobiologist, both faculty members at the University of Washington.An alternative view point was argued by Carl Sagan and Frank Drake, among others. It holds that Earth is a typical rocky planet in a typical planetary system, located in a non-exceptional region of a common barred-spiral galaxy. Given the principle of mediocrity (also called the Copernican principle), it is probable that the universe teems with complex life. Ward and Brownlee argue to the contrary: that planets, planetary systems, and galactic regions that are as friendly to complex life as are the Earth, the Solar System, and our region of the Milky Way are very rare.