question - UW Canvas
... (actual data). Which cluster is the younger one? a. NGC 1960 b. NGC 2355 c. They are both the same age. d. Not enough information is given to answer this question. ...
... (actual data). Which cluster is the younger one? a. NGC 1960 b. NGC 2355 c. They are both the same age. d. Not enough information is given to answer this question. ...
A0620-00 poster
... As the brightest dwarf nova and one of the brightest cataclysmic variables of any kind, SS Cygni has been extensively observed. Its outbursts, for example, have been continuously monitored since 1896 and their properties are the gold standard against which accretion disk instability models for dwarf ...
... As the brightest dwarf nova and one of the brightest cataclysmic variables of any kind, SS Cygni has been extensively observed. Its outbursts, for example, have been continuously monitored since 1896 and their properties are the gold standard against which accretion disk instability models for dwarf ...
- EPJ Web of Conferences
... given a distance to each star and a reddening law along the line of sight. The resulting radii, masses, magnitudes, and limb darkening coefficients, together with the eclipse ephemeris, the inclination angle of the eclipsing system and the eccentricity and argument of periastron are input into ebop ...
... given a distance to each star and a reddening law along the line of sight. The resulting radii, masses, magnitudes, and limb darkening coefficients, together with the eclipse ephemeris, the inclination angle of the eclipsing system and the eccentricity and argument of periastron are input into ebop ...
Workbook IAC
... together; one was in France and one was in America. They were each looking through telescopes. Both astronomers spotted the comet and reported their finding. The comet they found was not a big, bright comet. It is so small that it can only be seen with a telescope. The comet Tempel-Tuttle is about t ...
... together; one was in France and one was in America. They were each looking through telescopes. Both astronomers spotted the comet and reported their finding. The comet they found was not a big, bright comet. It is so small that it can only be seen with a telescope. The comet Tempel-Tuttle is about t ...
presentation source
... What Happened around 1950? HR Diagram comes into focus • Globular cluster stars clearly very old (>few Gyr) • T Tauri and other “pre-main-sequence”stars clearly very young (few Myr) • Real admitted need for star formation ...
... What Happened around 1950? HR Diagram comes into focus • Globular cluster stars clearly very old (>few Gyr) • T Tauri and other “pre-main-sequence”stars clearly very young (few Myr) • Real admitted need for star formation ...
The Southern Fall PDF - Treasures of the Southern Sky
... The vast Carina Nebula contains over a dozen stars with masses between 50 to 100 times that of the Sun, and these are the main source of illumination of the nebula itself. However, by far the most exotic star here is Eta Carinae. It is shrouded in a tiny nebula — the expanding, dumbbell-shaped Homu ...
... The vast Carina Nebula contains over a dozen stars with masses between 50 to 100 times that of the Sun, and these are the main source of illumination of the nebula itself. However, by far the most exotic star here is Eta Carinae. It is shrouded in a tiny nebula — the expanding, dumbbell-shaped Homu ...
Stellar Evolution
... • A core with remaining mass of 1.4 to 3 M, composed of tightly packed neutrons. • These tiny stars are much smaller than planet Earth -- in fact, they are about the diameter of a large city (~20 km). • One cubic centimeter (like a sugar cube) of a neutron star, would have a mass of about 1011 kg! ...
... • A core with remaining mass of 1.4 to 3 M, composed of tightly packed neutrons. • These tiny stars are much smaller than planet Earth -- in fact, they are about the diameter of a large city (~20 km). • One cubic centimeter (like a sugar cube) of a neutron star, would have a mass of about 1011 kg! ...
Globular Clusters
... are stars that have passed the red giant phase, lost much of their outer shell, and are now small, hot, blue stars, fusing helium. They are considerably dimmer than the brightest red giants, but they can still be visible in photographs or with large telescopes. Blue Stragglers Dimmer yet, but still ...
... are stars that have passed the red giant phase, lost much of their outer shell, and are now small, hot, blue stars, fusing helium. They are considerably dimmer than the brightest red giants, but they can still be visible in photographs or with large telescopes. Blue Stragglers Dimmer yet, but still ...
Chapter 19. Mapping the Universe from Herschel to Sloan
... Making a map requires the ability to plot something (e.g. a star) in three dimensions. It is easy to get two of those dimensions from the location of the star on the sky. This can be given, for example, in the celestial equivalent of the Earth’s latitude and longitude system. Astronomers refer to th ...
... Making a map requires the ability to plot something (e.g. a star) in three dimensions. It is easy to get two of those dimensions from the location of the star on the sky. This can be given, for example, in the celestial equivalent of the Earth’s latitude and longitude system. Astronomers refer to th ...
death_low_mass
... • Stars form in clusters, with all types of stars forming. O,B,A,F,G,K,M • Spiral arms barely move, but gas clouds and stars orbit around the galaxy moving in and out of spiral arms • From the HR diagram, by far the most luminous stars are the O-type stars. Their luminosity can be 100,000 times the ...
... • Stars form in clusters, with all types of stars forming. O,B,A,F,G,K,M • Spiral arms barely move, but gas clouds and stars orbit around the galaxy moving in and out of spiral arms • From the HR diagram, by far the most luminous stars are the O-type stars. Their luminosity can be 100,000 times the ...
1 Name: Date: PARALLAX EXERCISE1 The goal of this
... The measurements that you made above are quite similar to those made by astronomers in order to measure the distances to nearby stars. The big difference is that even the nearest stars are quite far away compared to the diameter of the Earth’s orbit around the Sun. Because the stars are so far away, ...
... The measurements that you made above are quite similar to those made by astronomers in order to measure the distances to nearby stars. The big difference is that even the nearest stars are quite far away compared to the diameter of the Earth’s orbit around the Sun. Because the stars are so far away, ...
DTU9ePPTChap13 - Faculty Lounge : Astronomy
... star and usually has alternating intervals of steep and gradual declines in brightness. ...
... star and usually has alternating intervals of steep and gradual declines in brightness. ...
Hertzsprung-Russell Diagram Outline
... In 1911, Ejnar Hertzsprung investigated the relationship between luminosity and colors of stars in within clusters. ...
... In 1911, Ejnar Hertzsprung investigated the relationship between luminosity and colors of stars in within clusters. ...
January 2016 - Newbury Astronomical Society
... The constellation of Orion in the south at midnight in mid January As well as being one of the most spectacular and A star like our Sun will fuse Hydrogen into Helium and beautiful constellations, Orion is also very interesting towards the end of its life will begin to fuse some of the because we ca ...
... The constellation of Orion in the south at midnight in mid January As well as being one of the most spectacular and A star like our Sun will fuse Hydrogen into Helium and beautiful constellations, Orion is also very interesting towards the end of its life will begin to fuse some of the because we ca ...
Death of Stars notes
... • When massive stars end their lives in titanic explosions called supernovae, the chemical elements forged in the stars’ interiors-and created in the heat and pressure of the explosion--are released into space as a debris cloud of hot gas and dust. • Scientists had evidence of such dust formation, b ...
... • When massive stars end their lives in titanic explosions called supernovae, the chemical elements forged in the stars’ interiors-and created in the heat and pressure of the explosion--are released into space as a debris cloud of hot gas and dust. • Scientists had evidence of such dust formation, b ...
Document
... You do have a textbook, and for most of your uncertainties with the various topics, reading the text will help! ...
... You do have a textbook, and for most of your uncertainties with the various topics, reading the text will help! ...
Introduction: The History and Technique of Stellar Classification
... the spectral classes became O, B, A, F, G, K, and M, and though the letter designations have no meaning other than that imposed on them by history, the names have stuck to this day. Each spectral class is divided into tenths, so that a B0 star follows an O9, and an A0, a B9. In this scheme the sun i ...
... the spectral classes became O, B, A, F, G, K, and M, and though the letter designations have no meaning other than that imposed on them by history, the names have stuck to this day. Each spectral class is divided into tenths, so that a B0 star follows an O9, and an A0, a B9. In this scheme the sun i ...
Define the following terms in the space provided
... Describe or define the following key terms in the space provided. (1 points each for a total of 7 points) 1) Astronomical Unit (AU) The AU is the mean distance from the Earth to the Sun, about 150 million kilometers. 2) Right Ascension (RA) RA is the longitude-like coordinate on the celestial sphere ...
... Describe or define the following key terms in the space provided. (1 points each for a total of 7 points) 1) Astronomical Unit (AU) The AU is the mean distance from the Earth to the Sun, about 150 million kilometers. 2) Right Ascension (RA) RA is the longitude-like coordinate on the celestial sphere ...
Slide 1
... massive objects settle onto the main sequence, where they burned hydrogen into helium. After burning helium into carbon, stars run out of fuel and collapse into white dwarf stars, producing beautiful planetary nebulae in the process. ...
... massive objects settle onto the main sequence, where they burned hydrogen into helium. After burning helium into carbon, stars run out of fuel and collapse into white dwarf stars, producing beautiful planetary nebulae in the process. ...
Sun, Moon, Earth,
... – Neutron Stars: Forms from the remains of the old star. • Very very high density and very very small. – As much as three times the mass of our star in an area the size of a city. – Some give off regular pulses of radio waves and are called pulsars. (these were originally called LGMs). ...
... – Neutron Stars: Forms from the remains of the old star. • Very very high density and very very small. – As much as three times the mass of our star in an area the size of a city. – Some give off regular pulses of radio waves and are called pulsars. (these were originally called LGMs). ...
slides - Indico
... Require large samples of, in particular, r-process-enhanced, metal-poor stars in order to place constraints on the nature of the r-process, its site(s), examination of possible variation in abundance patterns from star to star, and of course… ...
... Require large samples of, in particular, r-process-enhanced, metal-poor stars in order to place constraints on the nature of the r-process, its site(s), examination of possible variation in abundance patterns from star to star, and of course… ...
Boötes
Boötes /boʊˈoʊtiːz/ is a constellation in the northern sky, located between 0° and +60° declination, and 13 and 16 hours of right ascension on the celestial sphere. The name comes from the Greek Βοώτης, Boōtēs, meaning herdsman or plowman (literally, ox-driver; from βοῦς bous “cow”). The ""ö"" in the name is a diaeresis, not an umlaut, meaning that each 'o' is to be pronounced separately.One of the 48 constellations described by the 2nd century astronomer Ptolemy, Boötes is now one of the 88 modern constellations. It contains the fourth brightest star in the night sky, the orange-hued Arcturus. Boötes is home to many other bright stars, including eight above the fourth magnitude and an additional 21 above the fifth magnitude, making a total of 29 stars easily visible to the naked eye.