Star Types
... For example, if the mass of a star is doubled, its luminosity increases by a factor 23.5 ~ 11. Thus, stars like Sirius that are about twice as massive as the Sun are about 11 times as luminous. The more massive a Main Sequence star is, the hotter (bluer), and more luminous. The Main Sequence is a ma ...
... For example, if the mass of a star is doubled, its luminosity increases by a factor 23.5 ~ 11. Thus, stars like Sirius that are about twice as massive as the Sun are about 11 times as luminous. The more massive a Main Sequence star is, the hotter (bluer), and more luminous. The Main Sequence is a ma ...
Deep Space Mystery Note Form 3
... 1885 observation of supernova S Andromedae in the Andromeda galaxy was the first to be observed with a telescope. Provide info on cosmological distances In the 1960s some astromomers discovered the maximum intensities of supernova explosions could be used as a standered candles. Recent super ...
... 1885 observation of supernova S Andromedae in the Andromeda galaxy was the first to be observed with a telescope. Provide info on cosmological distances In the 1960s some astromomers discovered the maximum intensities of supernova explosions could be used as a standered candles. Recent super ...
70 Thousand Million, Million, Million Stars in Space
... The pollution from large cities and industrialization makes it difficult for us to get a clear view of the stars and planets in the night sky. This was not such a problem for astronomers in the past, who began mapping the universe from what they could see with the naked eye. In the 1600s, the invent ...
... The pollution from large cities and industrialization makes it difficult for us to get a clear view of the stars and planets in the night sky. This was not such a problem for astronomers in the past, who began mapping the universe from what they could see with the naked eye. In the 1600s, the invent ...
16. Properties of Stars
... But the Universe is 1.37 x 1010 yr old! Every M dwarf that was ever created is still on the main sequence!! ...
... But the Universe is 1.37 x 1010 yr old! Every M dwarf that was ever created is still on the main sequence!! ...
Data Mining Challenges and Opportunities in
... • Combined with similar efforts in Europe, this will lead to a Global Virtual Observatory • For details and links, see ...
... • Combined with similar efforts in Europe, this will lead to a Global Virtual Observatory • For details and links, see ...
Presentation (PowerPoint File)
... • Combined with similar efforts in Europe, this will lead to a Global Virtual Observatory • For details and links, see ...
... • Combined with similar efforts in Europe, this will lead to a Global Virtual Observatory • For details and links, see ...
Stars - WhatisOutThere
... Around how many stars are in the sky each night? The number of stars in the sky still remains a mystery to this day, because there are just too many to count. Stars are not spread out everywhere in space but are grouped together in galaxies. Instead of counting the stars individually, scientists lo ...
... Around how many stars are in the sky each night? The number of stars in the sky still remains a mystery to this day, because there are just too many to count. Stars are not spread out everywhere in space but are grouped together in galaxies. Instead of counting the stars individually, scientists lo ...
Mr. Traeger`s Light and Stars PowerPoint
... A cosmological red-shift indicates that stars and galaxies are moving away from us. As Mr. Auld pointed out, this means that our Universe is expanding, or moving outwards. ...
... A cosmological red-shift indicates that stars and galaxies are moving away from us. As Mr. Auld pointed out, this means that our Universe is expanding, or moving outwards. ...
ILÍDIO LOPES ()
... There are several mechanisms driving the oscillations in stars. Two of the most important are the κ-mechanism (related with changes in opacity) and the stochastic driving. The κ-mechanism acts like an heat engine, converting thermal into mechanical energy. The stochastic driving is the main mechanis ...
... There are several mechanisms driving the oscillations in stars. Two of the most important are the κ-mechanism (related with changes in opacity) and the stochastic driving. The κ-mechanism acts like an heat engine, converting thermal into mechanical energy. The stochastic driving is the main mechanis ...
Extra-Solar Life: Habitable Zones
... Mercury/Venus too hot Earth – just right Mars – was OK once (?), but now cold Jupiter, Saturn, Uranus, Neptune too cold (though some moons may be OK) ...
... Mercury/Venus too hot Earth – just right Mars – was OK once (?), but now cold Jupiter, Saturn, Uranus, Neptune too cold (though some moons may be OK) ...
Constellations - Sierra Star Gazers
... is also known as the Cygnus Loop. Composed of NGC 6960, 6992 and 6995, this large collection of nebulosity is the result of a supernova explosion about 2,500 light years distant that occurred some 15,000 years ago. This type II supernova marked the final chapter in the life of a supergiant star with ...
... is also known as the Cygnus Loop. Composed of NGC 6960, 6992 and 6995, this large collection of nebulosity is the result of a supernova explosion about 2,500 light years distant that occurred some 15,000 years ago. This type II supernova marked the final chapter in the life of a supergiant star with ...
Handout from Allaire Star Party
... in our galaxy, dating almost to the formation of the universe 13.7 billion years ...
... in our galaxy, dating almost to the formation of the universe 13.7 billion years ...
_____ 1. Which of the following statements is NOT true about stars
... a. A star begins its life as a ball of gas and dust. b. As stars get older, they lose some of their material. c. Stars last forever. d. New stars form from the material of old stars. 2. During a star’s life cycle, hydrogen changes to helium in a process called __________________ __________________. ...
... a. A star begins its life as a ball of gas and dust. b. As stars get older, they lose some of their material. c. Stars last forever. d. New stars form from the material of old stars. 2. During a star’s life cycle, hydrogen changes to helium in a process called __________________ __________________. ...
3.6 spectral classes
... • Absorption spectra are used to classify stars into nine principal types, called spectral classes. • Hydrogen lines are much stronger in the spectra of some stars than in the Sun’s spectrum. • Astronomers once mistakenly thought that these stars had more hydrogen than other stars. • They classified ...
... • Absorption spectra are used to classify stars into nine principal types, called spectral classes. • Hydrogen lines are much stronger in the spectra of some stars than in the Sun’s spectrum. • Astronomers once mistakenly thought that these stars had more hydrogen than other stars. • They classified ...
The Milky Way – A Classic Galaxy
... bright open cluster M23 has a Cepheid. As of 1999, 29 more clusters now known to have Cepheids. • Cepheid PL relation has much less noise if brightnesses measured in the Infrared, which is what is always done these days. • By “Cepheids” I mean “Classical Cepheids”. There are also “Type II Cepheids” ...
... bright open cluster M23 has a Cepheid. As of 1999, 29 more clusters now known to have Cepheids. • Cepheid PL relation has much less noise if brightnesses measured in the Infrared, which is what is always done these days. • By “Cepheids” I mean “Classical Cepheids”. There are also “Type II Cepheids” ...
HR Diagram Lab
... Purpose: In this lab we will investigate the relationship between the temperature, brightness and diameter of stars. Introduction The H-R Diagram is a tool that astronomers use to classify stars based on their luminosity, magnitude, temperature, spectral class and evolutionary stage. The H-R Diagram ...
... Purpose: In this lab we will investigate the relationship between the temperature, brightness and diameter of stars. Introduction The H-R Diagram is a tool that astronomers use to classify stars based on their luminosity, magnitude, temperature, spectral class and evolutionary stage. The H-R Diagram ...
Infinity Express
... Patterns of the motion of the sun, moon, and stars in the sky can be observed, described, and predicted. (By end of grade 2). The sun is a star that appears larger and brighter than other stars because it is closer. Stars range greatly in their distance from Earth. (By end of grade 5). Patterns of t ...
... Patterns of the motion of the sun, moon, and stars in the sky can be observed, described, and predicted. (By end of grade 2). The sun is a star that appears larger and brighter than other stars because it is closer. Stars range greatly in their distance from Earth. (By end of grade 5). Patterns of t ...
Stella Finger Prints
... Describe the components of the universe (stars). Analyze and predict trends from data. Procedures: 1. Look at the two sets of spectra patterns. Identify the elements present in each of the stars by comparing the spectra of the stars to those of the elements. 2. Record the elements for each star ...
... Describe the components of the universe (stars). Analyze and predict trends from data. Procedures: 1. Look at the two sets of spectra patterns. Identify the elements present in each of the stars by comparing the spectra of the stars to those of the elements. 2. Record the elements for each star ...
CARBON STARS
... solar neighborhood (within a few 100 parsecs) • Seem to be more common than giants in this region ...
... solar neighborhood (within a few 100 parsecs) • Seem to be more common than giants in this region ...
Quantum Well Electron Gain Structures and Infrared
... Mercury/Venus too hot Earth – just right Mars – was OK once (?), but now cold Jupiter, Saturn, Uranus, Neptune too cold (though some moons may be OK) ...
... Mercury/Venus too hot Earth – just right Mars – was OK once (?), but now cold Jupiter, Saturn, Uranus, Neptune too cold (though some moons may be OK) ...
Lab 1: The Celestial Sphere
... 5. The Earth's rotational axis is not perpendicular to the ecliptic plane; instead, it is tilted by 23.5. As the Earth revolves around the Sun, its tilt causes the seasons. Think about the physical meanings of the equinoxes and solstices, and how they are caused by the Earth's tilt. On which of the ...
... 5. The Earth's rotational axis is not perpendicular to the ecliptic plane; instead, it is tilted by 23.5. As the Earth revolves around the Sun, its tilt causes the seasons. Think about the physical meanings of the equinoxes and solstices, and how they are caused by the Earth's tilt. On which of the ...
hires version 12.5MB - Department of Physics and Astronomy
... astrophotography. He pioneered the phot0Qfephie me-esuremehf °f Steher Positions (astrometry) and magnitudes (photometry). it is difficult to recall how tedious astronomy was at that time. Astronomers painstakingly measured stellar positions with transits and meridian circles. They drew maps of star ...
... astrophotography. He pioneered the phot0Qfephie me-esuremehf °f Steher Positions (astrometry) and magnitudes (photometry). it is difficult to recall how tedious astronomy was at that time. Astronomers painstakingly measured stellar positions with transits and meridian circles. They drew maps of star ...
Galaxy1
... • M 82 is smaller than M 81 yet it is producing stars at an enormous rate. Ten times faster than the Milky Way is producing stars. • Most of the erupted gas is coming from supernova explosions. This is star formation on steroids. • Why do you think this little galaxy is producing stars so rapidly? ...
... • M 82 is smaller than M 81 yet it is producing stars at an enormous rate. Ten times faster than the Milky Way is producing stars. • Most of the erupted gas is coming from supernova explosions. This is star formation on steroids. • Why do you think this little galaxy is producing stars so rapidly? ...
Constellation
In modern astronomy, a constellation is a specific area of the celestial sphere as defined by the International Astronomical Union (IAU). These areas had their origins in Western-traditional asterisms from which the constellations take their names. There are 88 officially recognized constellations, covering the entire sky.Thus, any given point in a celestial coordinate system can unambiguously be assigned to a constellation. It is usual in astronomy to give the constellation in which a given object is found along with its coordinates in order to convey a rough idea in which part of the sky it is located. For example, saying the Horsehead Nebula is near Orion's Belt in the constellation Orion immediately locates it just south of the ecliptic and conveys that it is best observable in winter from the Northern Hemisphere.