Lecture 13
... different telescopes and instruments all over the world • When imaging astronomical objects, it is common to place one of several different filters (conceptually, a colored piece of glass) in the optical system to measure the color of an object quantitatively • Once enough astronomers began to make ...
... different telescopes and instruments all over the world • When imaging astronomical objects, it is common to place one of several different filters (conceptually, a colored piece of glass) in the optical system to measure the color of an object quantitatively • Once enough astronomers began to make ...
Star
... • Apparent motion is caused by the movement of Earth. • The rotation of Earth causes the apparent motion of stars sees as though the stars are moving counter-clockwise around the North Star. • Earth’s revolution around the sun causes the stars to appear to shift slightly to the west ...
... • Apparent motion is caused by the movement of Earth. • The rotation of Earth causes the apparent motion of stars sees as though the stars are moving counter-clockwise around the North Star. • Earth’s revolution around the sun causes the stars to appear to shift slightly to the west ...
Lecture 12: Galaxies View of the Galaxy from within Comparison to
... • Our Galaxy contains around 2x1011 stars. • It has a disk about 25 kpc (80,000 ly) in radius and about 600 pc thick, with interstellar dust and gas strongly concentrated in the disk plane. • The Sun orbits around the Galactic centre at a speed of about 220 km s-1. • It takes about 220 million y ...
... • Our Galaxy contains around 2x1011 stars. • It has a disk about 25 kpc (80,000 ly) in radius and about 600 pc thick, with interstellar dust and gas strongly concentrated in the disk plane. • The Sun orbits around the Galactic centre at a speed of about 220 km s-1. • It takes about 220 million y ...
Extra-Solar Life: Habitable Zones
... • If planet is close in, orbit will be unstable and chaotic • Moving in/out of HZ is probably hard on life development • If planet is far away (orbiting BOTH stars), orbit is stable, but typically outside the HZ (!) ...
... • If planet is close in, orbit will be unstable and chaotic • Moving in/out of HZ is probably hard on life development • If planet is far away (orbiting BOTH stars), orbit is stable, but typically outside the HZ (!) ...
High Mass Stellar Evolution
... To know: How high mass stars evolve. The defining properties of supernovae, neutron stars and black holes. ...
... To know: How high mass stars evolve. The defining properties of supernovae, neutron stars and black holes. ...
explaining the seasons and locating the north and south celestial
... If one takes a time exposure of the northern sky, the stars will be noticed to move in circles about the north star Polaris. Once found, one has the direction of true north. Also measuring the altitude above the horizon yields the latitude LAT of the place in the northern hemisphere where one is obs ...
... If one takes a time exposure of the northern sky, the stars will be noticed to move in circles about the north star Polaris. Once found, one has the direction of true north. Also measuring the altitude above the horizon yields the latitude LAT of the place in the northern hemisphere where one is obs ...
OUR UNIVERSE Problem Set 7 Solutions Question A1 Question A2
... whereby hydrogen fuses to helium. At this point the new star settles onto the main sequence. The radiation pressure from the fusing core is able to support the star halting the collapse. The star is held to a reasonably constant size for ca 1010 years via self regulation. That is, if the star tries ...
... whereby hydrogen fuses to helium. At this point the new star settles onto the main sequence. The radiation pressure from the fusing core is able to support the star halting the collapse. The star is held to a reasonably constant size for ca 1010 years via self regulation. That is, if the star tries ...
Excerpt from Aristotle`s “On the Heavens”
... Aristotle’s On the Heavens; Book II 4 · The shape of the heaven is of necessity spherical; for that is the shape most appropriate to its substance and also by nature primary. … That there is one heaven, then, only, and that it is ungenerated and eternal, and further that its movement is regular, has ...
... Aristotle’s On the Heavens; Book II 4 · The shape of the heaven is of necessity spherical; for that is the shape most appropriate to its substance and also by nature primary. … That there is one heaven, then, only, and that it is ungenerated and eternal, and further that its movement is regular, has ...
High velocity clouds (v > 90 km/s), up to 108 M_sun in total Seen at
... HI profile caused by several, distinct clouds along line of sight.! ...
... HI profile caused by several, distinct clouds along line of sight.! ...
The Superhero's Universe: Observing the Cosmos with X-ray Vision and Beyond
... Galaxy: Centaurus A ★ Discovered in 1847 ★ 14 million light-years away ★ 5th brightest visible galaxy ...
... Galaxy: Centaurus A ★ Discovered in 1847 ★ 14 million light-years away ★ 5th brightest visible galaxy ...
Mercury venus and jupiter in March 2014
... This week all Planets including Mercury Venus and Jupiter in March 2014 Many a times we see Bright Venus in day light as well. But hardly we have seen Jupiter in day Light. But since last week we been observing Jupiter in a day light just before Sun Sets. Best time to locate those planets in day Lig ...
... This week all Planets including Mercury Venus and Jupiter in March 2014 Many a times we see Bright Venus in day light as well. But hardly we have seen Jupiter in day Light. But since last week we been observing Jupiter in a day light just before Sun Sets. Best time to locate those planets in day Lig ...
Earth`s Rotation
... Shade this diagram – leave the intended path (the straight arrows) black. Highlight the apparent path (the curved arrows). The apparent path of motion (the curved arrows) shows the Coriolis Effect – proof that Earth is rotating. ...
... Shade this diagram – leave the intended path (the straight arrows) black. Highlight the apparent path (the curved arrows). The apparent path of motion (the curved arrows) shows the Coriolis Effect – proof that Earth is rotating. ...
Working with the Illinois Learning Standards: A Constructivist
... Stars evolve much as animals evolve. The source of energy of the stars is unknown. As stars shrink due to gravity, they change from red to blue. Red stars are hot; blue stars are cool. Stars are all roughly the same size. Stars change little over their life spans. Stars can only last thousands or mi ...
... Stars evolve much as animals evolve. The source of energy of the stars is unknown. As stars shrink due to gravity, they change from red to blue. Red stars are hot; blue stars are cool. Stars are all roughly the same size. Stars change little over their life spans. Stars can only last thousands or mi ...
Some additional notes by Jena Griffiths on our call
... actually getting out there and doing it. (her masculine energy) On a man’s hand it’s to do with not bringing out his feminine energy. On the right hand it could be that he’s not getting enough support of the feminine out in the world - his partner or wife. (She is the mirror of him so he’s not getti ...
... actually getting out there and doing it. (her masculine energy) On a man’s hand it’s to do with not bringing out his feminine energy. On the right hand it could be that he’s not getting enough support of the feminine out in the world - his partner or wife. (She is the mirror of him so he’s not getti ...
Interstellar medium, birth and life of stars
... then to oxygen. In a massive giant, helium fusion begins gradually. In a less massive giant, it begins suddenly in a process called helium flash. The age of a stellar cluster can be estimated by plotting its stars on an H-R diagram. The upper portion of the main sequence disappears first, because ...
... then to oxygen. In a massive giant, helium fusion begins gradually. In a less massive giant, it begins suddenly in a process called helium flash. The age of a stellar cluster can be estimated by plotting its stars on an H-R diagram. The upper portion of the main sequence disappears first, because ...
test - Scioly.org
... 2) Clue: Strange collimated outflows of gas, imperfectly understood, from this very early stage planetary nebula. 3) Clue: A possible view into the future of our own Solar System. Early astronomers could have mistaken this body as a Planetary Disk. This particular sample might have two bodies at the ...
... 2) Clue: Strange collimated outflows of gas, imperfectly understood, from this very early stage planetary nebula. 3) Clue: A possible view into the future of our own Solar System. Early astronomers could have mistaken this body as a Planetary Disk. This particular sample might have two bodies at the ...
The galaxies that host powerful radio sources
... • Optically faint (R>25). • Faint at radio and IR wavelengths. These facts suggest they are distant and dusty. ...
... • Optically faint (R>25). • Faint at radio and IR wavelengths. These facts suggest they are distant and dusty. ...
The Hubble Space Telescope - the first 10 years
... • Cosmology and Astronomy is an exciting science entering a golden era of discovery. Soon we will know either the fate of the Universe or we’ll overturn the Big Bang model. Either way its an exciting time and an exciting place to be. ...
... • Cosmology and Astronomy is an exciting science entering a golden era of discovery. Soon we will know either the fate of the Universe or we’ll overturn the Big Bang model. Either way its an exciting time and an exciting place to be. ...
ON THE FORMATION OF MASSIVE STELLAR CLUSTERS
... properties have been inferred from HST-STIS observations of AGN (Colina et al. 2002), and from radio continuum measurements of ultracompact HII regions not visible in optical images, fact that points to the youngest, densest and most highly obscured star formation events ever found (Kobulnicky & Joh ...
... properties have been inferred from HST-STIS observations of AGN (Colina et al. 2002), and from radio continuum measurements of ultracompact HII regions not visible in optical images, fact that points to the youngest, densest and most highly obscured star formation events ever found (Kobulnicky & Joh ...
History of astronomy - Part I.
... east. This is called direct motion. Every so often a planet moves from east to west against the background of stars. This is called retrograde motion. The amount of time between occurrences of retrograde motion for any given planet is called the synodic period. ...
... east. This is called direct motion. Every so often a planet moves from east to west against the background of stars. This is called retrograde motion. The amount of time between occurrences of retrograde motion for any given planet is called the synodic period. ...
Name: Pd: _____ Ast: _____ Solar System Study Guide Vocabulary
... 1) Solar System - A star together with the group of planets and other celestial bodies that are held by its gravitational attraction and revolve around it 2) Celestial Objects - Objects such as planets, moons, and stars that are located in the sky or in space 3) Star - A ball of gas in space that pr ...
... 1) Solar System - A star together with the group of planets and other celestial bodies that are held by its gravitational attraction and revolve around it 2) Celestial Objects - Objects such as planets, moons, and stars that are located in the sky or in space 3) Star - A ball of gas in space that pr ...
Astronomical distance
... Astronomical distances Light travels at an enormous speed (300 000 km/s) but even so the distances between stars and between our galaxy and other galaxies are so vast that even light takes a long time to travel to us from these distant objects. As you know distances in astronomy can be measure in li ...
... Astronomical distances Light travels at an enormous speed (300 000 km/s) but even so the distances between stars and between our galaxy and other galaxies are so vast that even light takes a long time to travel to us from these distant objects. As you know distances in astronomy can be measure in li ...
Measuring Stars
... Once many stars are plotted on an H–R diagram, a pattern begins to form: These are the 80 closest stars to us The darkened curve is called the main sequence, as this is where most stars are. Also indicated is the white dwarf region; these stars are hot but not very luminous, as they are quite small. ...
... Once many stars are plotted on an H–R diagram, a pattern begins to form: These are the 80 closest stars to us The darkened curve is called the main sequence, as this is where most stars are. Also indicated is the white dwarf region; these stars are hot but not very luminous, as they are quite small. ...
Summary of Objectives for Test 1
... What is the zodiac? Why is it significant? How many constellations are in the zodiac? Why is it called the zodiac? Explain why you only see some of the constellations of the zodiac at a given time. ...
... What is the zodiac? Why is it significant? How many constellations are in the zodiac? Why is it called the zodiac? Explain why you only see some of the constellations of the zodiac at a given time. ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.