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Cepheids PowerPoint PPT Presentation
Cepheids - Absolute Magnitudes between -1 and -6. Variations of between ... Runs through the entire H-R diagram. Characterized by pulsating stars with unstable envelopes ...
Absolute Magnitudes between -1 and -6. Variations of between ... Runs through the entire H-R diagram. Characterized by pulsating stars with unstable envelopes ...
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A Theoretical Investigation into Period-Color Relations for Cepheids in the Small Magellanic Cloud PowerPoint PPT Presentation
A Theoretical Investigation into Period-Color Relations for Cepheids in the Small Magellanic Cloud - Title: Cyberinfrastructure to Support Science and Data Management for the Dark Energy Survey Author: Choong Ngeow and Joe Mohr Last modified by
Title: Cyberinfrastructure to Support Science and Data Management for the Dark Energy Survey Author: Choong Ngeow and Joe Mohr Last modified by
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Understanding the Universe Summary Lecture PowerPoint PPT Presentation
Understanding the Universe Summary Lecture - distance ladder: parallax, Cepheids, SuperNova Type Ia ... nearby stars with parallax (up to 1kpc) - nearby galaxies with variable stars (Cepheids) ...
distance ladder: parallax, Cepheids, SuperNova Type Ia ... nearby stars with parallax (up to 1kpc) - nearby galaxies with variable stars (Cepheids) ...
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20th century cosmology PowerPoint PPT Presentation
20th century cosmology - brightest stars in galaxies as calibrated by Cepheids ... Hubble Wars. reasonable convergence only in last decade see later. PHY306. 13 ...
brightest stars in galaxies as calibrated by Cepheids ... Hubble Wars. reasonable convergence only in last decade see later. PHY306. 13 ...
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Object classification and physical parametrization with GAIA and other large surveys PowerPoint PPT Presentation
Object classification and physical parametrization with GAIA and other large surveys - Use all data (photometric, spectroscopic, astrometric) ... photometric variability (can exploit: Cepheids, ... photometric variability (pulsating stars, quasars) ...
Use all data (photometric, spectroscopic, astrometric) ... photometric variability (can exploit: Cepheids, ... photometric variability (pulsating stars, quasars) ...
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The Magellanic System: A History of Discovery PowerPoint PPT Presentation
The Magellanic System: A History of Discovery - The MS in History (very abridged) Henrietta Leavitt and the SMC Cepheids ... And dust: 1% of ISM mass 0.1mm. heating/cooling. catalyst for molecule formation ...
The MS in History (very abridged) Henrietta Leavitt and the SMC Cepheids ... And dust: 1% of ISM mass 0.1mm. heating/cooling. catalyst for molecule formation ...
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Disk Aware Discord Discovery: PowerPoint PPT Presentation
Disk Aware Discord Discovery: - The American Association of Variable Star Observers has a database of over 10.5 ... Three classes of light-curves. Eclipsed binaries. Cepheids. RR Lyrae ...
The American Association of Variable Star Observers has a database of over 10.5 ... Three classes of light-curves. Eclipsed binaries. Cepheids. RR Lyrae ...
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Powers of ten notation PowerPoint PPT Presentation
Powers of ten notation - We can observe Cepheids in the Andromeda galaxy. ... we just use the redshift of Andromeda along with its distance to figure out ...
We can observe Cepheids in the Andromeda galaxy. ... we just use the redshift of Andromeda along with its distance to figure out ...
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The Core of M87 (at the center of Virgo) PowerPoint PPT Presentation
The Core of M87 (at the center of Virgo) - The motion is only apparent Local structure interferes with Hubble flow Galactic Redshifts The Hubble Constant and the Age of the Universe Cepheids are the ...
The motion is only apparent Local structure interferes with Hubble flow Galactic Redshifts The Hubble Constant and the Age of the Universe Cepheids are the ...
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Stellar Evolution PowerPoint PPT Presentation
Stellar Evolution - ... is the expected main-sequence life time of the sun? 10 million years. 100 ... all have approximately the same age! ... from a Cepheid's absolute magnitude? ...
... is the expected main-sequence life time of the sun? 10 million years. 100 ... all have approximately the same age! ... from a Cepheid's absolute magnitude? ...
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StarForming Dwarf Galaxies with Extreme Properties of Cosmological Relevance: an ACSFUSE Perspective PowerPoint PPT Presentation
StarForming Dwarf Galaxies with Extreme Properties of Cosmological Relevance: an ACSFUSE Perspective - Star-Forming Dwarf Galaxies with Extreme Properties of Cosmological Relevance: ... The Rosetta Stone without a Distance: Hunting for Cepheids in I ZW 18 ...
Star-Forming Dwarf Galaxies with Extreme Properties of Cosmological Relevance: ... The Rosetta Stone without a Distance: Hunting for Cepheids in I ZW 18 ...
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Announcements PowerPoint PPT Presentation
Announcements - The distribution of galaxies in space. The discovery that the universe is expanding ... Distances to other galaxies were measured using type I Cepheids ' ...
The distribution of galaxies in space. The discovery that the universe is expanding ... Distances to other galaxies were measured using type I Cepheids ' ...
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Light Curve of XXCyg PowerPoint PPT Presentation
Light Curve of XXCyg - Zeus Leda. Orpheus. Cygnus. Chinese Mythology. The Subject: XXCyg. Pulsating variable star of SX PHE type. Ultrashort period dwarf Cepheids ...
Zeus Leda. Orpheus. Cygnus. Chinese Mythology. The Subject: XXCyg. Pulsating variable star of SX PHE type. Ultrashort period dwarf Cepheids ...
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bbbb PowerPoint PPT Presentation
bbbb - B star seismology. W.A. Dziembowski, Warsaw University Obsevatory ... the most important task for B star seismology. B-type pulsators: progenitors of Cepheids, ...
B star seismology. W.A. Dziembowski, Warsaw University Obsevatory ... the most important task for B star seismology. B-type pulsators: progenitors of Cepheids, ...
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An Empirical Investigation of the Effect of Metallicity on Linear vs. NonLinear Cepheid PeriodLumino PowerPoint PPT Presentation
An Empirical Investigation of the Effect of Metallicity on Linear vs. NonLinear Cepheid PeriodLumino - ... distances to other galaxies and hence the size of the Universe via the Hubble relation. ... Cepheids in M31 (the Andromeda galaxy) and IC 1613 to study such ...
... distances to other galaxies and hence the size of the Universe via the Hubble relation. ... Cepheids in M31 (the Andromeda galaxy) and IC 1613 to study such ...
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INAF PowerPoint PPT Presentation
INAF - INAF Osservatorio Astronomico di Brera Universit degli Studi di Milano Photometry of the galaxy NGC 6822 searching for Cepheid variable stars
INAF Osservatorio Astronomico di Brera Universit degli Studi di Milano Photometry of the galaxy NGC 6822 searching for Cepheid variable stars
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Pulsating Variables PowerPoint PPT Presentation
Pulsating Variables - 0 Pulsating Variables Cepheid Variables Cepheid Variables: The Period-Luminosity Relation Cepheid Variables as Distance Indicators The Instability Strip Stellar ...
0 Pulsating Variables Cepheid Variables Cepheid Variables: The Period-Luminosity Relation Cepheid Variables as Distance Indicators The Instability Strip Stellar ...
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Caratterizzazione della variabilita' in Gaia PowerPoint PPT Presentation
Caratterizzazione della variabilita' in Gaia - Vincenzo Ripepi INAF-Osservatorio Astronomico di Capodimonte - Italy on behalf of the Italian-based CU7 members: G. Clementini INAF-OABO ...
Vincenzo Ripepi INAF-Osservatorio Astronomico di Capodimonte - Italy on behalf of the Italian-based CU7 members: G. Clementini INAF-OABO ...
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Cepheid PowerPoint PPT Presentation
Cepheid - Cepheid iftlerinde K tle Oran
Cepheid iftlerinde K tle Oran
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ET at the Scince Cafe PowerPoint PPT Presentation
ET at the Scince Cafe - Look for artifacts in our solar neighborhood. Etcetera . Our new idea: Neutrino ... here, consider big picture. Guess at energy input: take deposition time ...
Look for artifacts in our solar neighborhood. Etcetera . Our new idea: Neutrino ... here, consider big picture. Guess at energy input: take deposition time ...
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Galaxies and Cosmology PowerPoint PPT Presentation
Galaxies and Cosmology - Galaxies and Cosmology. Key figures in relativistic cosmology. Friedman de Sitter ... Peebles Dicke. Herman Gamow Alpher. Wilson Penzias. Cosmic Background ...
Galaxies and Cosmology. Key figures in relativistic cosmology. Friedman de Sitter ... Peebles Dicke. Herman Gamow Alpher. Wilson Penzias. Cosmic Background ...
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Planetary Nebulae and the Extragalactic Distance Scale PowerPoint PPT Presentation
Planetary Nebulae and the Extragalactic Distance Scale - Planetary Nebulae and the Extragalactic Distance Scale. Robin Ciardullo. Why Measure ... Collisional de-excitation of forbidden emission in young, dense nebulae ...
Planetary Nebulae and the Extragalactic Distance Scale. Robin Ciardullo. Why Measure ... Collisional de-excitation of forbidden emission in young, dense nebulae ...
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Interferometric Studies of Binary Stars PowerPoint PPT Presentation
Interferometric Studies of Binary Stars - Interferometric Studies of Binary Stars
Interferometric Studies of Binary Stars
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Measuring the distance to Galaxies PowerPoint PPT Presentation
Measuring the distance to Galaxies - Measuring the distance to Galaxies Henrietta Leavitt and the Cepheid Variable Star The Great Distances of Space Many of the challenges in understanding the universe ...
Measuring the distance to Galaxies Henrietta Leavitt and the Cepheid Variable Star The Great Distances of Space Many of the challenges in understanding the universe ...
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Development of A Near-Infrared Camera for use at RBO PowerPoint PPT Presentation
Development of A Near-Infrared Camera for use at RBO - Atmospheric H2O absorption defines near-infrared bands. Filters designed to fit in atmospheric windows ... BIRCAM Cryostat ...
Atmospheric H2O absorption defines near-infrared bands. Filters designed to fit in atmospheric windows ... BIRCAM Cryostat ...
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Detailed Astrophysical Properties of Lyman Break Galaxies PowerPoint PPT Presentation
Detailed Astrophysical Properties of Lyman Break Galaxies - Henrietta Swann Leavitt (1868-1921), a 'computer' at Harvard College Observatory ... Leavitt found that the period of pulsation is related to the brightness: 'A ...
Henrietta Swann Leavitt (1868-1921), a 'computer' at Harvard College Observatory ... Leavitt found that the period of pulsation is related to the brightness: 'A ...
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Cepheid Variables: Measuring the distance of Galaxies PowerPoint PPT Presentation
Cepheid Variables: Measuring the distance of Galaxies - Time in days. Apparent Brightness in Magnitudes. Data Table. HV 837. HV ... Absolute magnitude is what the apparent magnitude of the same star at 10 parsecs ...
Time in days. Apparent Brightness in Magnitudes. Data Table. HV 837. HV ... Absolute magnitude is what the apparent magnitude of the same star at 10 parsecs ...
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The Milky Way and Beyond: Archives: Ch 21,22, 48 and 49, Secrets: Ch 38,43,53 PowerPoint PPT Presentation
The Milky Way and Beyond: Archives: Ch 21,22, 48 and 49, Secrets: Ch 38,43,53 - The Milky Way and Beyond: Archives: Ch 21,22, 48 and 49, Secrets: Ch 38,43,53 What is the Milky Way? What is its extent? What were the spiral nebulae?
The Milky Way and Beyond: Archives: Ch 21,22, 48 and 49, Secrets: Ch 38,43,53 What is the Milky Way? What is its extent? What were the spiral nebulae?
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Towards a 3% Geometric Distance to NGC 4258 PowerPoint PPT Presentation
Towards a 3% Geometric Distance to NGC 4258 - Towards a 3% Geometric Distance to NGC 4258 ... The Big Picture ... X-ray absorbing layer (nH ~ 1023 cm-2) radius = 0.29 pc where disk crosses line ...
Towards a 3% Geometric Distance to NGC 4258 ... The Big Picture ... X-ray absorbing layer (nH ~ 1023 cm-2) radius = 0.29 pc where disk crosses line ...
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15.2 Distances of Galaxies PowerPoint PPT Presentation
15.2 Distances of Galaxies - 15.2 Distances of Galaxies Our Goals for Learning How do we measure the distances to galaxies? What is Hubble s Law? How do distance measurements tell ...
15.2 Distances of Galaxies Our Goals for Learning How do we measure the distances to galaxies? What is Hubble s Law? How do distance measurements tell ...
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Sulfur, manganese PowerPoint PPT Presentation
Sulfur, manganese - Sulfur, manganese in the Galaxy Mishenina T.V., Gorbaneva T.I., Paramonova O.P., Basak N.Yu., Kovtyukh V.V., Korotin S.A., Chekhonadskih F. +
Sulfur, manganese in the Galaxy Mishenina T.V., Gorbaneva T.I., Paramonova O.P., Basak N.Yu., Kovtyukh V.V., Korotin S.A., Chekhonadskih F. +
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Period Changes in Delta Scuti stars PowerPoint PPT Presentation
Period Changes in Delta Scuti stars - Periods of tens of minutes to 0.3 days. From pre- to post ... Percy et al. (1980), Rodriguez et al. (1995), Breger & Pamyatnykh (1998)... It's NOT evolution! ...
Periods of tens of minutes to 0.3 days. From pre- to post ... Percy et al. (1980), Rodriguez et al. (1995), Breger & Pamyatnykh (1998)... It's NOT evolution! ...
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Today in Astronomy 241: radial stellar pulsation PowerPoint PPT Presentation
Today in Astronomy 241: radial stellar pulsation - Jack Thomas (UR) 'Galileo: A Literary Master in XVII Century Italy' ... Annie Jump Cannon, Dorothy Black, Arville Walker, Frank Hinkely, and ...
Jack Thomas (UR) 'Galileo: A Literary Master in XVII Century Italy' ... Annie Jump Cannon, Dorothy Black, Arville Walker, Frank Hinkely, and ...
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P1246341509KMDgc PowerPoint PPT Presentation
P1246341509KMDgc - The first Parallax of the star 61 Cygni was measured by F. Bessel in 1838. ... A little thought will show that this also works for stars whose ...
The first Parallax of the star 61 Cygni was measured by F. Bessel in 1838. ... A little thought will show that this also works for stars whose ...
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Trumpeting the Success of the Abbey Ridge Observatory: Stellar Discoveries from Nova Scotia PowerPoint PPT Presentation
Trumpeting the Success of the Abbey Ridge Observatory: Stellar Discoveries from Nova Scotia - Trumpeting the Success of the Abbey Ridge Observatory: Stellar Discoveries from Nova Scotia
Trumpeting the Success of the Abbey Ridge Observatory: Stellar Discoveries from Nova Scotia
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The Milky Way PowerPoint PPT Presentation
The Milky Way - The Milky Way
The Milky Way
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The Cosmological Distance Ladder PowerPoint PPT Presentation
The Cosmological Distance Ladder - Title: PowerPoint Presentation Author: Chris Murray Last modified by: Chris Murray Created Date: 3/22/2000 2:51:09 PM Document presentation format
Title: PowerPoint Presentation Author: Chris Murray Last modified by: Chris Murray Created Date: 3/22/2000 2:51:09 PM Document presentation format
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Stellar Fuel, Nuclear Energy and Elements PowerPoint PPT Presentation
Stellar Fuel, Nuclear Energy and Elements - Stellar Fuel, Nuclear Energy and Elements How do stars shine? E = mc2 How did matter come into being? Big bang stellar nucleosynthesis How did different elements form?
Stellar Fuel, Nuclear Energy and Elements How do stars shine? E = mc2 How did matter come into being? Big bang stellar nucleosynthesis How did different elements form?
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Pulsating Variables PowerPoint PPT Presentation
Pulsating Variables - The variability period P of a Cepheid variable is positively correlated with its ... II; horizontal-branch; nearly standard-candle luminosity! ...
The variability period P of a Cepheid variable is positively correlated with its ... II; horizontal-branch; nearly standard-candle luminosity! ...
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NOTES: PowerPoint PPT Presentation
NOTES: - NOTES: Cepheid Variable Stars: John Goodrick (1784) discovered Delta-Cephei. Henrietta Leavitt (1908)--Period Luminosity Relation: (overlay). Stars varying in ...
NOTES: Cepheid Variable Stars: John Goodrick (1784) discovered Delta-Cephei. Henrietta Leavitt (1908)--Period Luminosity Relation: (overlay). Stars varying in ...
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A Spiral Nebula as a Stellar System, Messier 31 PowerPoint PPT Presentation
A Spiral Nebula as a Stellar System, Messier 31 - A Spiral Nebula as a Stellar System, Messier 31. By Edwin Hubble. Not So Easy Astronomy ... Stanek and Garnavich 1998 found the distance to be ~780kpc ...
A Spiral Nebula as a Stellar System, Messier 31. By Edwin Hubble. Not So Easy Astronomy ... Stanek and Garnavich 1998 found the distance to be ~780kpc ...
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Videoconference April 28th PowerPoint PPT Presentation
Videoconference April 28th - Videoconference April 28th
Videoconference April 28th
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But I am constant as the Northern Star Of whose truefixed and resting quality There is no fellow in PowerPoint PPT Presentation
But I am constant as the Northern Star Of whose truefixed and resting quality There is no fellow in - But I am constant as the Northern Star Of whose truefixed and resting quality There is no fellow in
But I am constant as the Northern Star Of whose truefixed and resting quality There is no fellow in
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Chapter 15 A Universe of Galaxies PowerPoint PPT Presentation
Chapter 15 A Universe of Galaxies - Chapter 15 A Universe of Galaxies 15.1 Islands of Stars Our Goals for Learning What are the three major types of galaxies? Beyond the three main galaxy types Dwarf ...
Chapter 15 A Universe of Galaxies 15.1 Islands of Stars Our Goals for Learning What are the three major types of galaxies? Beyond the three main galaxy types Dwarf ...
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Stellar Evolution and Galaxies PowerPoint PPT Presentation
Stellar Evolution and Galaxies - key com.apple.print.ticket.creator /key string com.apple.printingmanager /string ... key com.apple.print.ticket.creator /key string com.apple.print.pm. ...
key com.apple.print.ticket.creator /key string com.apple.printingmanager /string ... key com.apple.print.ticket.creator /key string com.apple.print.pm. ...
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Newton first guessed that Sirius was 1 000 000 AUs by comparing its luminosity to that of Saturn it PowerPoint PPT Presentation
Newton first guessed that Sirius was 1 000 000 AUs by comparing its luminosity to that of Saturn it - Use a combination of 'Triangulation' and 'Parallax' ... Longest baseline is earth's orbit - parallax is used to calculate the angles. ...
Use a combination of 'Triangulation' and 'Parallax' ... Longest baseline is earth's orbit - parallax is used to calculate the angles. ...
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Presentazione di PowerPoint PowerPoint PPT Presentation
Presentazione di PowerPoint - Along with Sagittarius , it is the only dSph known to host globular clusters. ... possess mean characteristics intermediate between the two Oosterhoff groups ...
Along with Sagittarius , it is the only dSph known to host globular clusters. ... possess mean characteristics intermediate between the two Oosterhoff groups ...
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Asteroseismology of Gamma Doradus, Beta Cephei, Delta Scuti and other heatenginestars PowerPoint PPT Presentation
Asteroseismology of Gamma Doradus, Beta Cephei, Delta Scuti and other heatenginestars - Institut for Fysik og Astronomi, Aarhus Universitet. Dansk ... New (OPAL) opacity. Massive pulsators. Excitation calculation. Pamyatnykh (1999; Acta Astron. ...
Institut for Fysik og Astronomi, Aarhus Universitet. Dansk ... New (OPAL) opacity. Massive pulsators. Excitation calculation. Pamyatnykh (1999; Acta Astron. ...
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Emily AliceaMuoz PowerPoint PPT Presentation
Emily AliceaMuoz - Feast & Walker (1987): Fig. 3: Sandage & Tammann (1968) Distance indicators... Measure period (P) in days. Determine absolute magnitude (MV) from P-L relationship ...
Feast & Walker (1987): Fig. 3: Sandage & Tammann (1968) Distance indicators... Measure period (P) in days. Determine absolute magnitude (MV) from P-L relationship ...
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Size and Scale of the Universe PowerPoint PPT Presentation
Size and Scale of the Universe - The region of the Galaxy within about 32.6 light-years of the Sun (65 light ... The Milky Way Galaxy is a giant disk of stars 160,000 light-years across and 1, ...
The region of the Galaxy within about 32.6 light-years of the Sun (65 light ... The Milky Way Galaxy is a giant disk of stars 160,000 light-years across and 1, ...
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theres no place like home PowerPoint PPT Presentation
theres no place like home - Nature of the Spiral Nebulae and the Great Debate. Shapley ... Summary: Shapley's MWG was too big, and his distances to the spiral nebulae too small ...
Nature of the Spiral Nebulae and the Great Debate. Shapley ... Summary: Shapley's MWG was too big, and his distances to the spiral nebulae too small ...
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Lecture 15, Oct. 1An illustration of ideas, m,M, etc Cepheid Variables PowerPoint PPT Presentation
Lecture 15, Oct. 1An illustration of ideas, m,M, etc Cepheid Variables - Cepheid variables show periodic variations in brightness, up to a magnitude or so. ... Epsilon (4.19) Zeta (3.35) Lambda(5.04) Iota (3.52) ...
Cepheid variables show periodic variations in brightness, up to a magnitude or so. ... Epsilon (4.19) Zeta (3.35) Lambda(5.04) Iota (3.52) ...
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Lecture 14What spectroscopy tells us about the nature of the stars PowerPoint PPT Presentation
Lecture 14What spectroscopy tells us about the nature of the stars - A beautiful example of Kirchoff's Laws. But first, an illustration of how m (apparent magnitude), M ... Epsilon (4.19) Zeta (3.35) Lambda(5.04) Iota (3.52) ...
A beautiful example of Kirchoff's Laws. But first, an illustration of how m (apparent magnitude), M ... Epsilon (4.19) Zeta (3.35) Lambda(5.04) Iota (3.52) ...
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Stelle pulsanti classiche: problemi aperti e prospettive future Marcella Marconi INAF-Osservatorio Astronomico di Capodimonte PowerPoint PPT Presentation
Stelle pulsanti classiche: problemi aperti e prospettive future Marcella Marconi INAF-Osservatorio Astronomico di Capodimonte - It is important to construct as accurate distance scale ... RR Lyrae are important tracers of chemical and dynamical properties of old ...
It is important to construct as accurate distance scale ... RR Lyrae are important tracers of chemical and dynamical properties of old ...
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Avstander i rommet PowerPoint PPT Presentation
Avstander i rommet - Avstander i rommet Av Stein O. Wasb , Birger Andresen og Terje Bjerkg rd Innhold Avstander i rommet Solsystemet Melkeveien N re og fjerne galakser Hvorfor er ...
Avstander i rommet Av Stein O. Wasb , Birger Andresen og Terje Bjerkg rd Innhold Avstander i rommet Solsystemet Melkeveien N re og fjerne galakser Hvorfor er ...
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