THE HR DIAGRAM
... leaving a very dense core of carbon. The outer layers drift off to become what is called a planetary nebula, which is a ring of burning hydrogen that looks like a smoke ring. The dense core is called a white dwarf. It is white because it is very hot, but a dwarf because it has a very small radius. I ...
... leaving a very dense core of carbon. The outer layers drift off to become what is called a planetary nebula, which is a ring of burning hydrogen that looks like a smoke ring. The dense core is called a white dwarf. It is white because it is very hot, but a dwarf because it has a very small radius. I ...
e - Leon County Schools
... frequency: the number of cycles per unit time (usually sec) -- unit is Hz, or s–1 ...
... frequency: the number of cycles per unit time (usually sec) -- unit is Hz, or s–1 ...
Lund Observatory Department of Astronomy and Theoretical Physics
... Department of Astronomy and Theoretical Physics LUND ...
... Department of Astronomy and Theoretical Physics LUND ...
Tutorial - TIL BIRNSTIEL
... • You can notice that the angular distance is proportional to semimajor axis of the planet. Does this always imply that planets far from the host star are easier to detect? What other limit is there in real observations? • Consider the Jupiter-Sun system. Assuming an astrometric precision of 100 µas ...
... • You can notice that the angular distance is proportional to semimajor axis of the planet. Does this always imply that planets far from the host star are easier to detect? What other limit is there in real observations? • Consider the Jupiter-Sun system. Assuming an astrometric precision of 100 µas ...
HNRS 227 Lecture #2 Chapters 2 and 3
... Kepler’s Second Law of Planetary Motion planets sweep out equal areas in equal times travel faster when closer, slower when farther ...
... Kepler’s Second Law of Planetary Motion planets sweep out equal areas in equal times travel faster when closer, slower when farther ...
Bright Quasar 3C 273 Encyclopedia of Astronomy & Astrophysics eaa.iop.org Thierry J-L Courvoisier
... 3C 273 is clearly a very luminous object indeed. Its light output corresponds to 1014 times that of the Sun. Most quasars do not radiate substantially in the radio part of the electromagnetic spectrum, and are called radio quiet quasars. A small fraction, of which 3C 273 is a member, do, however. Th ...
... 3C 273 is clearly a very luminous object indeed. Its light output corresponds to 1014 times that of the Sun. Most quasars do not radiate substantially in the radio part of the electromagnetic spectrum, and are called radio quiet quasars. A small fraction, of which 3C 273 is a member, do, however. Th ...
The Life of a Star
... a red super giant. After this stage things become more violent. Instead of gentle billowing gas shells being ejected into space (a planetary nebula) the red super giant tears itself apart in an unbelievably violent explosion called a supernova. As the radiation and debris clear, a neutron star emerg ...
... a red super giant. After this stage things become more violent. Instead of gentle billowing gas shells being ejected into space (a planetary nebula) the red super giant tears itself apart in an unbelievably violent explosion called a supernova. As the radiation and debris clear, a neutron star emerg ...
The Hidden Lives of Galaxies NSTA 2001
... energy is the nuclear fusion of hydrogen to form helium in the star’s core. ...
... energy is the nuclear fusion of hydrogen to form helium in the star’s core. ...
Light problems
... b. wavelength of electromagnetic energy gained by an atom. c. minimum quantity of energy that can be lost or gained by an atom. d. continuous spectrum of energy given off by an atom. 9.____ A form of energy that exhibits wave behavior as it travels through space is a. microwave radiation. b. ultravi ...
... b. wavelength of electromagnetic energy gained by an atom. c. minimum quantity of energy that can be lost or gained by an atom. d. continuous spectrum of energy given off by an atom. 9.____ A form of energy that exhibits wave behavior as it travels through space is a. microwave radiation. b. ultravi ...
Astronomy Solar System Formation Sun and Stellar Evolution
... 7. Describe how temperature changes as you move from the core to the corona. 8. Identify and explain characteristics of an active Sun a. Granulation b. Sunspots c. Filaments d. Prominences e. Flares f. Coronal Holes and coronal mass ejections g. Limb darkening 9. Be prepared to visually identify the ...
... 7. Describe how temperature changes as you move from the core to the corona. 8. Identify and explain characteristics of an active Sun a. Granulation b. Sunspots c. Filaments d. Prominences e. Flares f. Coronal Holes and coronal mass ejections g. Limb darkening 9. Be prepared to visually identify the ...
The genesis and characteristics of black holes
... Different phases: ◦ hydrogen burning ◦ helium burning ◦ carbon, neon, oxygen, silicate burning ...
... Different phases: ◦ hydrogen burning ◦ helium burning ◦ carbon, neon, oxygen, silicate burning ...
Space Key Word Search
... of a super-massive star. CELESTIAL SPHERE - system of mapping the space around the Earth; an imaginary sphere surrounding Earth. CIRCUMPOLAR - circling the pole star (Polaris). COMET - chunk of dirty, dark ice mixed with dust, rocks, and gases which revolves around the Sun in an elliptical orbit; em ...
... of a super-massive star. CELESTIAL SPHERE - system of mapping the space around the Earth; an imaginary sphere surrounding Earth. CIRCUMPOLAR - circling the pole star (Polaris). COMET - chunk of dirty, dark ice mixed with dust, rocks, and gases which revolves around the Sun in an elliptical orbit; em ...
Life Cycle of a Star
... Shows the relationship between a star’s surface temperature and absolute magnitude Used to study the lives of stars Most stars lie along the main sequence portion of the diagram ...
... Shows the relationship between a star’s surface temperature and absolute magnitude Used to study the lives of stars Most stars lie along the main sequence portion of the diagram ...
Linking Asteroids and Meteorites through Reflectance Spectroscopy
... • She proposed that most stars were made up of Hydrogen and Helium • Her 1925 PhD Harvard thesis on these topics was voted best Astronomy thesis of the 20th century ...
... • She proposed that most stars were made up of Hydrogen and Helium • Her 1925 PhD Harvard thesis on these topics was voted best Astronomy thesis of the 20th century ...
Document
... This is piecewise, time-weighted summation in an AgeFlux table for stars Ψ(k,j) is the birth rate function of stars of type k in the ...
... This is piecewise, time-weighted summation in an AgeFlux table for stars Ψ(k,j) is the birth rate function of stars of type k in the ...
Star Life Cycle
... 1. How far across is our galaxy, the Milky Way? 2. How can one locate the center of our galaxy as we orbit the sun and the sun orbits the galaxy? 3. Is our solar system moving away from the center of our galaxy? 4. How many years does it take the sun to orbit the center of the galaxy? 5. The Milky W ...
... 1. How far across is our galaxy, the Milky Way? 2. How can one locate the center of our galaxy as we orbit the sun and the sun orbits the galaxy? 3. Is our solar system moving away from the center of our galaxy? 4. How many years does it take the sun to orbit the center of the galaxy? 5. The Milky W ...
Bruemmer-Dark Matter
... The disk of the Milky Way is confirmed to be more or less free of dark matter ...
... The disk of the Milky Way is confirmed to be more or less free of dark matter ...
Star Life Cycle
... Galaxies had so many shapes that Hubble found that three types were not enough. He had to further break down these three according to a slight variation in shape between each type of galaxy in each category. For the "E" or 5)_________________galaxies, he used the amount of flattening or 6)__________ ...
... Galaxies had so many shapes that Hubble found that three types were not enough. He had to further break down these three according to a slight variation in shape between each type of galaxy in each category. For the "E" or 5)_________________galaxies, he used the amount of flattening or 6)__________ ...
Unit 8 Astronomy
... A neutron star is an imploded core of an exploded star made up almost entirely of neutrons. A teaspoon of their material would weigh more than all of automobiles in the U.S. together The most massive stars become supernovae and die as: ______________________ BLACK HOLE A black hole is an extremely m ...
... A neutron star is an imploded core of an exploded star made up almost entirely of neutrons. A teaspoon of their material would weigh more than all of automobiles in the U.S. together The most massive stars become supernovae and die as: ______________________ BLACK HOLE A black hole is an extremely m ...
Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other hot celestial objects. Spectroscopy can be used to derive many properties of distant stars and galaxies, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements.