Activity 1: The Scientific Method
... 1) Start by becoming aware of your own biases. Do you believe any of the data is correlated? If so how? Relationship Example: radial motion of the stars and temperature Should state relationships that you believe might exist ...
... 1) Start by becoming aware of your own biases. Do you believe any of the data is correlated? If so how? Relationship Example: radial motion of the stars and temperature Should state relationships that you believe might exist ...
lecture11
... Analyzing Absorption Spectra • Each element produces a specific set of absorption (and emission) lines. • Comparing the relative strengths of these sets of lines, we can study the composition of gases. ...
... Analyzing Absorption Spectra • Each element produces a specific set of absorption (and emission) lines. • Comparing the relative strengths of these sets of lines, we can study the composition of gases. ...
Document
... Stars, density has been increasing. • As density increases, the force of gravity on the surface increases. • The greater the force, the higher the escape velocity: – How fast you need to go in order to escape the surface. ...
... Stars, density has been increasing. • As density increases, the force of gravity on the surface increases. • The greater the force, the higher the escape velocity: – How fast you need to go in order to escape the surface. ...
Galileo & the Telescope— Sept 20
... planets flying around the star of Jupiter at unequal intervals and periods with wonderful swiftness; which unknown by anyone until this day, the first author detected recently and decided to name Midicean Stars. Venice ...
... planets flying around the star of Jupiter at unequal intervals and periods with wonderful swiftness; which unknown by anyone until this day, the first author detected recently and decided to name Midicean Stars. Venice ...
Sun, Stars, HR Diagram
... white dwarf B) to shrink to a white dwarf then eventually expand to a red giant C) become hotter and expand into a blue supergiant D) to become a black hole 17. By using a spectroscope an astronomer can A) B) C) D) ...
... white dwarf B) to shrink to a white dwarf then eventually expand to a red giant C) become hotter and expand into a blue supergiant D) to become a black hole 17. By using a spectroscope an astronomer can A) B) C) D) ...
Star Types - University of Massachusetts Amherst
... No amount of pressure can stop the collapse, because in those extreme situations, pressure itself contributes more to gravity than it does of opposing it. It forms a singularity – a region in space with the mass of the parent material, but with virtually null volume and hence potentially infinite gr ...
... No amount of pressure can stop the collapse, because in those extreme situations, pressure itself contributes more to gravity than it does of opposing it. It forms a singularity – a region in space with the mass of the parent material, but with virtually null volume and hence potentially infinite gr ...
Climbing the Cosmic Distance Ladder: How Astronomers Measure
... Distances to very distant stars • This gave a way to obtain the absolute brightness for these stars, and hence observed distances. • Because Cepheids are so bright, this method works up to 13,000,000 light years, well beyond the Milky Way! Most galaxies are fortunate to have at least one ...
... Distances to very distant stars • This gave a way to obtain the absolute brightness for these stars, and hence observed distances. • Because Cepheids are so bright, this method works up to 13,000,000 light years, well beyond the Milky Way! Most galaxies are fortunate to have at least one ...
Stellar Evolution Lab
... Stage 1- Stars are born in clouds of gas and dust called Nebulas. Stage 2- The gas and dust spiral together and contract under their own gravity. The gas and dust will begin to heat up and start to glow forming Protostars. Stage 3- If a protostar contains enough matter, the central temperature will ...
... Stage 1- Stars are born in clouds of gas and dust called Nebulas. Stage 2- The gas and dust spiral together and contract under their own gravity. The gas and dust will begin to heat up and start to glow forming Protostars. Stage 3- If a protostar contains enough matter, the central temperature will ...
Are Earth-like exoplanets common?
... When multiplied by the number of source stars at ds, it gives the total number of lensing events at any given time of some baseline magnitude. ...
... When multiplied by the number of source stars at ds, it gives the total number of lensing events at any given time of some baseline magnitude. ...
Homework 1 SOLUTIONS - University of Colorado Boulder
... d). Is this accuracy good enough for the wayfinder to find Hawaii? Explain using your knowledge of the techniques for making “land fall” described in class. Yes, clouds can be seen over the Big Island for > 100 miles away. Specific types of birds fly out from their nests each morning and return each ...
... d). Is this accuracy good enough for the wayfinder to find Hawaii? Explain using your knowledge of the techniques for making “land fall” described in class. Yes, clouds can be seen over the Big Island for > 100 miles away. Specific types of birds fly out from their nests each morning and return each ...
August Skies
... lopsided house or, if someone insisted that it represent a primate type figure, I’d make it a gnome with a big pointy hat and name him Gulcifer. Given the choices, how would you describe this stellar grouping? ...
... lopsided house or, if someone insisted that it represent a primate type figure, I’d make it a gnome with a big pointy hat and name him Gulcifer. Given the choices, how would you describe this stellar grouping? ...
The Northern sky - Visit Isle of Man
... The Plough, also known as the Big Dipper, is a collection of seven stars that has been recognised as a distinct grouping in many cultures for thousands of years. The stars that make up the Plough are the seven brightest stars of the Ursa Major constellation. In the days before we had compasses to na ...
... The Plough, also known as the Big Dipper, is a collection of seven stars that has been recognised as a distinct grouping in many cultures for thousands of years. The stars that make up the Plough are the seven brightest stars of the Ursa Major constellation. In the days before we had compasses to na ...
January 2013 Night Sky - Explore More - At
... Well, this is mostly true. Objects in the sky seem to twinkle because we’re seeing them though the Earth’s atmosphere. All those layers of air are moving, which distorts their light and gives the twinkling effect. The distant stars are very large but are so far away that to us they look like pin-pri ...
... Well, this is mostly true. Objects in the sky seem to twinkle because we’re seeing them though the Earth’s atmosphere. All those layers of air are moving, which distorts their light and gives the twinkling effect. The distant stars are very large but are so far away that to us they look like pin-pri ...
InternetArchive_ManagingBornDigitalData
... It has data on every part of the sky In every measured spectral band: optical, x-ray, radio.. As deep as the best instruments (2 years ago). It is up when you are up. The “seeing” is always great (no working at night, no clouds no moons no..). – It’s a smart telescope: links objects and data to lite ...
... It has data on every part of the sky In every measured spectral band: optical, x-ray, radio.. As deep as the best instruments (2 years ago). It is up when you are up. The “seeing” is always great (no working at night, no clouds no moons no..). – It’s a smart telescope: links objects and data to lite ...
HOMEWORK #1
... Just as brightness is related to apparent magnitude, luminosity is related to a term called “absolute magnitude.” Astronomers refer to a star’s “absolute magnitude (M)” as the apparent magnitude it would have at an arbitrary standardized distance of 10 parsecs (i.e., 32.6 light-years). #2. Combine ...
... Just as brightness is related to apparent magnitude, luminosity is related to a term called “absolute magnitude.” Astronomers refer to a star’s “absolute magnitude (M)” as the apparent magnitude it would have at an arbitrary standardized distance of 10 parsecs (i.e., 32.6 light-years). #2. Combine ...
Chapter 13 (Properties of Stars)
... 1. Which of the following properties of stars does NOT require knowledge of the earth-star distance to find it out? A. Mass. B. Luminosity. C. Density. D. Surface temperature. 2. The color of a star is MOST DIRECTLY related to its: A. mass. B. surface temperature. C. central (core) temperature. D. l ...
... 1. Which of the following properties of stars does NOT require knowledge of the earth-star distance to find it out? A. Mass. B. Luminosity. C. Density. D. Surface temperature. 2. The color of a star is MOST DIRECTLY related to its: A. mass. B. surface temperature. C. central (core) temperature. D. l ...
Word
... Just as brightness is related to apparent magnitude, luminosity is related to a term called “absolute magnitude.” Astronomers refer to a star’s “absolute magnitude (M)” as the apparent magnitude it would have at an arbitrary standardized distance of 10 parsecs (i.e., 32.6 light-years). #2. Combine ...
... Just as brightness is related to apparent magnitude, luminosity is related to a term called “absolute magnitude.” Astronomers refer to a star’s “absolute magnitude (M)” as the apparent magnitude it would have at an arbitrary standardized distance of 10 parsecs (i.e., 32.6 light-years). #2. Combine ...
distances of stars.
... You can best model the size and distance relationship of our Sun and the next nearest star using a) one tennis ball here and one on the Moon. b) two beach balls separated by 100 city blocks. c) two grains of sand 100 light-years apart. d) two golf balls 100 km apart. e) two baseballs 100 yards apart ...
... You can best model the size and distance relationship of our Sun and the next nearest star using a) one tennis ball here and one on the Moon. b) two beach balls separated by 100 city blocks. c) two grains of sand 100 light-years apart. d) two golf balls 100 km apart. e) two baseballs 100 yards apart ...
Hipparcos
Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993. It was the first space experiment devoted to precision astrometry, the accurate measurement of the positions of celestial objects on the sky. This permitted the accurate determination of proper motions and parallaxes of stars, allowing a determination of their distance and tangential velocity. When combined with radial-velocity measurements from spectroscopy, this pinpointed all six quantities needed to determine the motion of stars. The resulting Hipparcos Catalogue, a high-precision catalogue of more than 118,200 stars, was published in 1997. The lower-precision Tycho Catalogue of more than a million stars was published at the same time, while the enhanced Tycho-2 Catalogue of 2.5 million stars was published in 2000. Hipparcos ' follow-up mission, Gaia, was launched in 2013.The word ""Hipparcos"" is an acronym for High precision parallax collecting satellite and also a reference to the ancient Greek astronomer Hipparchus of Nicaea, who is noted for applications of trigonometry to astronomy and his discovery of the precession of the equinoxes.