day04
... • Edmond Halley predicted a comet would return in 1758 and every 76 years after that. (seen in 1910, 1986, and will return in 2061) Halley’s comet has an elliptical orbit extending out past Neptune. • William Herschel discovered Uranus in 1781 by accident. • After 50 years it was seen to deviate fro ...
... • Edmond Halley predicted a comet would return in 1758 and every 76 years after that. (seen in 1910, 1986, and will return in 2061) Halley’s comet has an elliptical orbit extending out past Neptune. • William Herschel discovered Uranus in 1781 by accident. • After 50 years it was seen to deviate fro ...
Stellar Winds and Mass Loss
... The advantage is that they will from at large distances from the star, 104R*. CO J=1→0 lines are typically used The velocities at this range are much lower than the escape speed of the star, but they still indicate mass loss Knapp and Morris derived an expression for the CO mass loss rate in 1985 ...
... The advantage is that they will from at large distances from the star, 104R*. CO J=1→0 lines are typically used The velocities at this range are much lower than the escape speed of the star, but they still indicate mass loss Knapp and Morris derived an expression for the CO mass loss rate in 1985 ...
Solar System where_are_we
... the satellite COBE. The disk and center region of our Galaxy are readily recognizable. This image makes the Milky Way appear much more galaxylike and less like the smudge of stars we see stretching across our night sky. It is possible to imagine what our Milky Way might look like looking down on it ...
... the satellite COBE. The disk and center region of our Galaxy are readily recognizable. This image makes the Milky Way appear much more galaxylike and less like the smudge of stars we see stretching across our night sky. It is possible to imagine what our Milky Way might look like looking down on it ...
ASTR 101 Scale of the Universe: an Overview
... What is the shape of the milky way? Where is the Sun’s location in it? What is the estimated number of stars in the Milky way, what is its diameter? Can we see all of the Milky way galaxy from Earth? What is the reason we see Milky way as a luminous cloud? What is most distant object in the universe ...
... What is the shape of the milky way? Where is the Sun’s location in it? What is the estimated number of stars in the Milky way, what is its diameter? Can we see all of the Milky way galaxy from Earth? What is the reason we see Milky way as a luminous cloud? What is most distant object in the universe ...
lecture11
... However, a big cold object can emit the same or more energy (depending on how big it is) than a small, hotter one ...
... However, a big cold object can emit the same or more energy (depending on how big it is) than a small, hotter one ...
Discovering Asteroids Using
... from meteors in space whose mutual gravity causes them to form a small bunch. b. from a trail of debris left behind by a comet. c. from groups of meteors that have randomly bunched together. d. from a very large meteor that was long ago pulverized in a collision. a. ...
... from meteors in space whose mutual gravity causes them to form a small bunch. b. from a trail of debris left behind by a comet. c. from groups of meteors that have randomly bunched together. d. from a very large meteor that was long ago pulverized in a collision. a. ...
ph709-08-3b - Centre for Astrophysics and Planetary Science
... mode, which is used for targets in the brightness range 6.5>=V>=13. We describe the photometric reduction techniques for this mode of observing, in particular the corrections for stray earthshine. We do not detect the secondary eclipse in the MOST data, to a limit in depth of 0.053 mmag (1 sigma). W ...
... mode, which is used for targets in the brightness range 6.5>=V>=13. We describe the photometric reduction techniques for this mode of observing, in particular the corrections for stray earthshine. We do not detect the secondary eclipse in the MOST data, to a limit in depth of 0.053 mmag (1 sigma). W ...
The Birth of Stars and Planets
... 5. Which role do stellar winds play? 6. What are the structure and geometry of the accreting protostar? How is the star interacting with its surrounding circumstellar disk? 7. How do disks interact with one another in young multiple stellar systems? 8. Do young massive stars have circumstellar disks ...
... 5. Which role do stellar winds play? 6. What are the structure and geometry of the accreting protostar? How is the star interacting with its surrounding circumstellar disk? 7. How do disks interact with one another in young multiple stellar systems? 8. Do young massive stars have circumstellar disks ...
Study Guide #3 Answer Key
... Each spiral arm describes a logarithmic spiral (as do the arms of all spiral galaxies) with a pitch of approximately 12 degrees. There are believed to be four major spiral arms which all start near the Galaxy's center. These are named as follows, according to the image at right: The galactic disk is ...
... Each spiral arm describes a logarithmic spiral (as do the arms of all spiral galaxies) with a pitch of approximately 12 degrees. There are believed to be four major spiral arms which all start near the Galaxy's center. These are named as follows, according to the image at right: The galactic disk is ...
The Sun
... together and that orbit a common center of mass. – More than half of the stars in the sky are either binary stars or members of multiple-star systems. – Astronomers are able to identify binary stars through several methods. • Accurate measurements can show that its position shifts back and forth as ...
... together and that orbit a common center of mass. – More than half of the stars in the sky are either binary stars or members of multiple-star systems. – Astronomers are able to identify binary stars through several methods. • Accurate measurements can show that its position shifts back and forth as ...
The Mass Assembly of Galaxies
... There is a cluster of B stars in the central 1’’ of the galaxy, the so-called S-cluster. These high proper motion stars - in particular star S2 - show that Sgr A* is a black-hole of 3-4 million solar masses. Large numbers of young stars, in particular O supergiants and WR stars are observed within 2 ...
... There is a cluster of B stars in the central 1’’ of the galaxy, the so-called S-cluster. These high proper motion stars - in particular star S2 - show that Sgr A* is a black-hole of 3-4 million solar masses. Large numbers of young stars, in particular O supergiants and WR stars are observed within 2 ...
New science on the young sun, and Earth migration
... the light of extrasolar planet research, astronomers do not consider it outside the realm of possibility to propose that a planet could have existed in our own system that is no longer present today. Still, this requires believing in a planet for which there is no observational evidence. Moreover, t ...
... the light of extrasolar planet research, astronomers do not consider it outside the realm of possibility to propose that a planet could have existed in our own system that is no longer present today. Still, this requires believing in a planet for which there is no observational evidence. Moreover, t ...
January 14 - Astronomy
... 1. The Sun, being above the celestial equator, remains in the sky longer during the summer, the longest daylight time occurring on the summer solstice. 2. The Sun rays hit the earth more directly during the summer months, i.e. the ...
... 1. The Sun, being above the celestial equator, remains in the sky longer during the summer, the longest daylight time occurring on the summer solstice. 2. The Sun rays hit the earth more directly during the summer months, i.e. the ...
We especially need imagination in science. It is not all mathematics
... • How does the Sun influence the planets? • Its gravity regulates the orbits of the planets. • Its heat is the primary factor which determines the temperature of the planets. • It provides practically all of the visible light in the Solar ...
... • How does the Sun influence the planets? • Its gravity regulates the orbits of the planets. • Its heat is the primary factor which determines the temperature of the planets. • It provides practically all of the visible light in the Solar ...
Chapter 5 Galaxies and Star Systems
... nearby stars. Often one star in a binary star is much brighter and more massive than the other. Astronomers can sometimes detect a binary star even if only one of the stars can be seen from Earth. Astronomers can often tell that there is a dim star in a binary system by observing the effects of its ...
... nearby stars. Often one star in a binary star is much brighter and more massive than the other. Astronomers can sometimes detect a binary star even if only one of the stars can be seen from Earth. Astronomers can often tell that there is a dim star in a binary system by observing the effects of its ...
The universe is faster, colder, and wackier than anything we can
... question more carefully, what is the gentlest pull that any object in the universe exerts, and yet is still able to force another body to orbit it? Many small galaxies have correspondingly weak gravity. But if two low-mass galaxies can somehow come together in an isolated region of space such that t ...
... question more carefully, what is the gentlest pull that any object in the universe exerts, and yet is still able to force another body to orbit it? Many small galaxies have correspondingly weak gravity. But if two low-mass galaxies can somehow come together in an isolated region of space such that t ...
Teacher`s Guide - Discovery Education
... Find out how the solar system formed and observe a model illustrating its vast distances. The Planets Discover the differences between the inner and outer planets. Listen to scientists debate Pluto’s status as a planet, and observe photographs of Jupiter from spacecraft. Comets and Asteroid Check ou ...
... Find out how the solar system formed and observe a model illustrating its vast distances. The Planets Discover the differences between the inner and outer planets. Listen to scientists debate Pluto’s status as a planet, and observe photographs of Jupiter from spacecraft. Comets and Asteroid Check ou ...
8th Grade Science Midterm Review Put all answers on a separate
... the larger the size the smaller the gravity. This explains why Earth and Saturn have nearly the same amount of gravity. Saturn has much more mass, but it is cancelled out by its increased size. Jupiter is also a giant of a planet but it has so much more mass that it over comes the decrease in gravi ...
... the larger the size the smaller the gravity. This explains why Earth and Saturn have nearly the same amount of gravity. Saturn has much more mass, but it is cancelled out by its increased size. Jupiter is also a giant of a planet but it has so much more mass that it over comes the decrease in gravi ...
Student Worksheet - Indiana University Astronomy
... available from the 2 Micron All Sky Survey. The brightness of stars in IC 4665 for the wavelength regions B, V, I, J, H, and K are included in the table below. These measurements are published in the astronomical literature, as noted in the references below the table. Wavelengths are measured in nan ...
... available from the 2 Micron All Sky Survey. The brightness of stars in IC 4665 for the wavelength regions B, V, I, J, H, and K are included in the table below. These measurements are published in the astronomical literature, as noted in the references below the table. Wavelengths are measured in nan ...
Aquarius (constellation)
Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces. Its name is Latin for ""water-carrier"" or ""cup-carrier"", and its symbol is 20px (Unicode ♒), a representation of water.Aquarius is one of the oldest of the recognized constellations along the zodiac (the sun's apparent path). It was one of the 48 constellations listed by the 2nd century AD astronomer Ptolemy, and it remains one of the 88 modern constellations. It is found in a region often called the Sea due to its profusion of constellations with watery associations such as Cetus the whale, Pisces the fish, and Eridanus the river.