HR Diagram Lab Handout
... Russell Diagram. Background: You are about to create your own HR Diagram, a chart that revolutionized the study of stars. You will have a labeled chart and a series of points to plot. From these points, you can deduce a lot of information about stars! Please read the directions in each step of the a ...
... Russell Diagram. Background: You are about to create your own HR Diagram, a chart that revolutionized the study of stars. You will have a labeled chart and a series of points to plot. From these points, you can deduce a lot of information about stars! Please read the directions in each step of the a ...
this article as a PDF
... By far, the most popular celestial gem in the constellation of Orion is M42, The Great Orion Nebula. Although it is 1500 light-years away, M42 is a great target to view in small telescopes. This is due not only to its brightness, but also to its wonderful cloud structure, which in telescopes takes o ...
... By far, the most popular celestial gem in the constellation of Orion is M42, The Great Orion Nebula. Although it is 1500 light-years away, M42 is a great target to view in small telescopes. This is due not only to its brightness, but also to its wonderful cloud structure, which in telescopes takes o ...
Q1. Describe, in as much detail as you can: • the evidence that the
... Explain, as fully as you can, how cosmic microwave background radiation fits in with the idea that the Universe, as it now is, began with a big bang. ...
... Explain, as fully as you can, how cosmic microwave background radiation fits in with the idea that the Universe, as it now is, began with a big bang. ...
AST 443
... a main-sequence star is proportional to the fourth power of the star’s mass, what mass star is just now leaving the main sequence in a cluster that formed (a) ...
... a main-sequence star is proportional to the fourth power of the star’s mass, what mass star is just now leaving the main sequence in a cluster that formed (a) ...
The highest resolution near infrared spectrum of the imaged
... Direct-imaging searches for planets reveal wide orbit planets amenable to spectroscopy, and their atmospheres represent an important comparison to the irradiated atmospheres of Hot Jupiters. Using AO integral field spectroscopy of 2M1207 b, the shape of the continuum emission over the J, H, and K ba ...
... Direct-imaging searches for planets reveal wide orbit planets amenable to spectroscopy, and their atmospheres represent an important comparison to the irradiated atmospheres of Hot Jupiters. Using AO integral field spectroscopy of 2M1207 b, the shape of the continuum emission over the J, H, and K ba ...
Nature template - PC Word 97 - European Southern Observatory
... volume mixing ratio is dominated by the uncertainty in the planet’s pressuretemperature profile, and by the uncertainty in the level of masking of CO by CH4 in the atmosphere. The amplitude of the cross-correlation signal is a factor 2.8 stronger than the signal expected from our initial transmissio ...
... volume mixing ratio is dominated by the uncertainty in the planet’s pressuretemperature profile, and by the uncertainty in the level of masking of CO by CH4 in the atmosphere. The amplitude of the cross-correlation signal is a factor 2.8 stronger than the signal expected from our initial transmissio ...
PRESENTATION: Evolution of the elements through the lifecycles of
... -These most simple elements are formed because they are the simplest. The rate of immense heat cooling down quickly due to great expansion of the universe only allowed these simple one and two proton elements to form. -Trace amounts of Lithium and Beryllium also formed, elements 3 and 4, but in insi ...
... -These most simple elements are formed because they are the simplest. The rate of immense heat cooling down quickly due to great expansion of the universe only allowed these simple one and two proton elements to form. -Trace amounts of Lithium and Beryllium also formed, elements 3 and 4, but in insi ...
Chapter 4
... Rutherford model…It did not answer: Where the e- were located in the space outside the nucleus Why the e- did not crash into the nucleus Why atoms produce spectra at specific wavelengths ...
... Rutherford model…It did not answer: Where the e- were located in the space outside the nucleus Why the e- did not crash into the nucleus Why atoms produce spectra at specific wavelengths ...
Astronomy Quiz 12 “Stars
... A. white dwarfs / red giant C. red giants / blue dwarfs B. yellow dwarfs / red supergiant D. red dwarfs / blue supergiant _____3. The actual 3D motion of stars relative to each other in a rotating and swirling galaxy is called __ motion. A. radial B. proper C. real D. transverse _____4. How far away ...
... A. white dwarfs / red giant C. red giants / blue dwarfs B. yellow dwarfs / red supergiant D. red dwarfs / blue supergiant _____3. The actual 3D motion of stars relative to each other in a rotating and swirling galaxy is called __ motion. A. radial B. proper C. real D. transverse _____4. How far away ...
ASTRONOMY 0089: EXAM 2 Class Meets M,W,F, 1:00 PM Mar 22
... d. Its energy will be generated via the fusion of He into C in its inner core. e. It will have a surface temperature of around 3500K and hence, from the Stefan Boltzmann law, it follows that its Luminosity will be lower than the present Luminosity of the Sun. 18. In the H-R diagram, low mass main se ...
... d. Its energy will be generated via the fusion of He into C in its inner core. e. It will have a surface temperature of around 3500K and hence, from the Stefan Boltzmann law, it follows that its Luminosity will be lower than the present Luminosity of the Sun. 18. In the H-R diagram, low mass main se ...
Young Galaxies Grow - Astronomical Society of the Pacific
... • Spiral galaxies form from a spinning disk of matter. Their brightest component is a flat, dense disk, where most of their stars are formed along spiral arms. Our Milky Way is a spiral galaxy, • Such disk galaxies assembled mostly in earlier epochs, but they continue to form stars today from rema ...
... • Spiral galaxies form from a spinning disk of matter. Their brightest component is a flat, dense disk, where most of their stars are formed along spiral arms. Our Milky Way is a spiral galaxy, • Such disk galaxies assembled mostly in earlier epochs, but they continue to form stars today from rema ...
Monday, October 27
... • Then do the following Gedankenexperiment: – In your mind, put the star from its actual position to a position 10 pc away – If a star is actually closer than 10pc, its absolute magnitude will be a bigger number, i.e. it is intrinsically dimmer than it appears – If a star is farther than 10pc, its a ...
... • Then do the following Gedankenexperiment: – In your mind, put the star from its actual position to a position 10 pc away – If a star is actually closer than 10pc, its absolute magnitude will be a bigger number, i.e. it is intrinsically dimmer than it appears – If a star is farther than 10pc, its a ...
File
... within a molecular cloud caused by nearby supernovas or other forces. Most stars spend about 90% of their life-times as main sequence stars. During this time hydrogen is turned into helium by nuclear fusion at the star’s core. As the main sequence stage continues the luminosity, temperature and he ...
... within a molecular cloud caused by nearby supernovas or other forces. Most stars spend about 90% of their life-times as main sequence stars. During this time hydrogen is turned into helium by nuclear fusion at the star’s core. As the main sequence stage continues the luminosity, temperature and he ...
AST 301 Introduction to Astronomy - University of Texas Astronomy
... The more distant star (Spica) appears fainter. Since it is twice as distant as Canopus, it appears 4 times fainter, or ¼ as bright. We could use the magnitude system to describe how much fainter Spica is than Canopus, but I prefer to talk about fluxes instead of magnitudes. ...
... The more distant star (Spica) appears fainter. Since it is twice as distant as Canopus, it appears 4 times fainter, or ¼ as bright. We could use the magnitude system to describe how much fainter Spica is than Canopus, but I prefer to talk about fluxes instead of magnitudes. ...
Critical Content/Concept Web
... 11. All objects have a blackbody curve 12. How telescopes use the electromagnetic spectrum 13. The reason the moon has phases 14. Why eclipses occur and the earth has seasons 15. The cause of apparent celestial motion ...
... 11. All objects have a blackbody curve 12. How telescopes use the electromagnetic spectrum 13. The reason the moon has phases 14. Why eclipses occur and the earth has seasons 15. The cause of apparent celestial motion ...
From eclipse drawings to the coronagraph and spectroscopy
... ¾ the corona is magnetically structured ¾ the appearance of the corona changes with solar activity cycle ¾ 106 K is "quite natural": heat conduction acts as thermostat ¾ a static hot corona cannot exist expansion ¾ appearance the solar atmosphere changes dramatically with temperature ...
... ¾ the corona is magnetically structured ¾ the appearance of the corona changes with solar activity cycle ¾ 106 K is "quite natural": heat conduction acts as thermostat ¾ a static hot corona cannot exist expansion ¾ appearance the solar atmosphere changes dramatically with temperature ...
General relativity
... stars behind it. • A cluster of galaxies can also act as lens by deflecting light from galaxies behind it. • The mass of the galaxy cluster is obtained from faint arcs produced by a lens. ...
... stars behind it. • A cluster of galaxies can also act as lens by deflecting light from galaxies behind it. • The mass of the galaxy cluster is obtained from faint arcs produced by a lens. ...
Document
... =2 or 3, and their frequencies are less than two or three times the fundamental frequency (=1) because of anharmonicity. Typical energy spacings for vibrational levels are on the order of 10-20 J. from the Bolzmann distribution, it can be shown that at room temperature typically 1% or less of th ...
... =2 or 3, and their frequencies are less than two or three times the fundamental frequency (=1) because of anharmonicity. Typical energy spacings for vibrational levels are on the order of 10-20 J. from the Bolzmann distribution, it can be shown that at room temperature typically 1% or less of th ...
Basic Observations of the Night Sky
... • The Earth 'wobbles' like a top; this is known as precession. • It takes 26,000 years for the Earth to make one complete cycle – This means that Polaris was not always, nor will it remain, the North Star ...
... • The Earth 'wobbles' like a top; this is known as precession. • It takes 26,000 years for the Earth to make one complete cycle – This means that Polaris was not always, nor will it remain, the North Star ...
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.