Pretty Pictures of the Cosmos
... layers of a Sun-like star only 10,000 years ago. The inner filaments visible are being ejected by strong wind of particles from the central star. The outer disk contains unusual light-year long orange filaments. The Eskimo Nebula lies about 5000 light-years away in the constellation of Gemini. ...
... layers of a Sun-like star only 10,000 years ago. The inner filaments visible are being ejected by strong wind of particles from the central star. The outer disk contains unusual light-year long orange filaments. The Eskimo Nebula lies about 5000 light-years away in the constellation of Gemini. ...
supplemental educational materials PDF
... • Summer constellations include the zodiacal constellations of Sagittarius, the Archer; Capricorn, the Sea Goat; and Aquarius, the Water Bearer. Other familiar summer constellations include Pegasus, the Flying Horse, and Cygnus, the Swan. • The fall constellations include the zodiacal constellations ...
... • Summer constellations include the zodiacal constellations of Sagittarius, the Archer; Capricorn, the Sea Goat; and Aquarius, the Water Bearer. Other familiar summer constellations include Pegasus, the Flying Horse, and Cygnus, the Swan. • The fall constellations include the zodiacal constellations ...
Recomendación de una estrategia
... final phase of stellar evolution. A total of 58 hours of exposure time have gone in to creating this deep view of the nebula. The white dot at the Helix's center is this Planetary Nebula's hot, central star. ...
... final phase of stellar evolution. A total of 58 hours of exposure time have gone in to creating this deep view of the nebula. The white dot at the Helix's center is this Planetary Nebula's hot, central star. ...
![Lectures 10 & 11 powerpoint (stellar formation) [movie below]](http://s1.studyres.com/store/data/008083226_1-fec717da713794a7feea61d4eec0ceb1-300x300.png)
Lectures 10 & 11 powerpoint (stellar formation) [movie below]
... • Hot intercloud medium: Hot (T ~ a few 1000 K), ionized hydrogen (HII); low density (n ~ 0.1 atom/cm3); gas can remain ionized because of very low density. ...
... • Hot intercloud medium: Hot (T ~ a few 1000 K), ionized hydrogen (HII); low density (n ~ 0.1 atom/cm3); gas can remain ionized because of very low density. ...
Lecture Notes-PPT
... When stars are born they develop from large clouds of molecular gas. After the remnant gas is heated and blow away, the stars collect together by gravity. During the exchange of energy between the stars, some stars reach escape velocity from the protocluster and become runaway stars. The rest become ...
... When stars are born they develop from large clouds of molecular gas. After the remnant gas is heated and blow away, the stars collect together by gravity. During the exchange of energy between the stars, some stars reach escape velocity from the protocluster and become runaway stars. The rest become ...
Description of Pictures In the Dome
... stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky. Pleiades has several meanings in different cultures and traditions. The cluster is dominated by hot blue and extremely luminous stars that h ...
... stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky. Pleiades has several meanings in different cultures and traditions. The cluster is dominated by hot blue and extremely luminous stars that h ...
Constellation Information
... On July evenings, giant beasts and giant men stand on the north-south meridian of the sky. But even more fascinating than the mythology attached to these constellations are the sights we can see in them with modern optical aid. Brightest of the beasts is Scorpius, the Scorpion. This big, glittering ...
... On July evenings, giant beasts and giant men stand on the north-south meridian of the sky. But even more fascinating than the mythology attached to these constellations are the sights we can see in them with modern optical aid. Brightest of the beasts is Scorpius, the Scorpion. This big, glittering ...
14 The Interstellar Medium and Star Formation
... created by UV radiation from hot stars ionizing neutral hydrogen. This induces a shock wave front which emanates from a star and penetrates the neutral hydrogen cloud until the energy of the ...
... created by UV radiation from hot stars ionizing neutral hydrogen. This induces a shock wave front which emanates from a star and penetrates the neutral hydrogen cloud until the energy of the ...
CloudsToSolarSystems_EXES
... Cloud complex at 300 light years away - but it is smaller and only lowmass stars are produced in it. Orion is the nearest site that is large enough to produce massive stars. ...
... Cloud complex at 300 light years away - but it is smaller and only lowmass stars are produced in it. Orion is the nearest site that is large enough to produce massive stars. ...
Orion- The Swordsman of the Sky - A Winter Constellation from the
... Orion’s most famous marking is Orion’s Belt, consisting of 3 stars in a row (from left to right, Alnitak, Alnilam, and Mintaka). Off to the centre of his belt, is his sword, which has many treasures, one of which you can see in a pair of binoculars. Messier Object number 42 (or M42 the Orion Nebula) ...
... Orion’s most famous marking is Orion’s Belt, consisting of 3 stars in a row (from left to right, Alnitak, Alnilam, and Mintaka). Off to the centre of his belt, is his sword, which has many treasures, one of which you can see in a pair of binoculars. Messier Object number 42 (or M42 the Orion Nebula) ...
THE LIFE CYCLE OF A STAR
... A protostar is a large mass that forms by contraction out of the gas of a giant molecular cloud in the interstellar medium. The protostellar phase is an early stage in the process of star formation. For a one solar-mass star it lasts about 100,000 years. It starts with a core of increased density in ...
... A protostar is a large mass that forms by contraction out of the gas of a giant molecular cloud in the interstellar medium. The protostellar phase is an early stage in the process of star formation. For a one solar-mass star it lasts about 100,000 years. It starts with a core of increased density in ...
Constellations
... A. The number of months in a year B. The number of days in a month C. The number of weeks in a year D. The number of years in a decade 3. Astronomers recognize the Orion Nebula as a large celestial body. What can you infer about the Orion Nebula from its name? A. It is a star in the constellation Or ...
... A. The number of months in a year B. The number of days in a month C. The number of weeks in a year D. The number of years in a decade 3. Astronomers recognize the Orion Nebula as a large celestial body. What can you infer about the Orion Nebula from its name? A. It is a star in the constellation Or ...
The Great Nebula in Orion
... cool and fade from view, and unseen brown dwarfs represent an unknown fraction of the mass of the universe. In Orion, we can estimate the fraction of brown dwarfs in the general star-formation process, which can be used to constrain their total mass in the universe. We also see many circumstellar di ...
... cool and fade from view, and unseen brown dwarfs represent an unknown fraction of the mass of the universe. In Orion, we can estimate the fraction of brown dwarfs in the general star-formation process, which can be used to constrain their total mass in the universe. We also see many circumstellar di ...
proposed october viewing list
... OBJECT DESCRIPTIONS M11 Known as the Wild Duck cluster, this open cluster in the constellation Scutum, (SKEW-tum) is seen best with the 4” refractor at low magnification. It contains more than 2900 stars and is estimated to be about 250 million years old. M11 is receding from us at a speed of 27 km ...
... OBJECT DESCRIPTIONS M11 Known as the Wild Duck cluster, this open cluster in the constellation Scutum, (SKEW-tum) is seen best with the 4” refractor at low magnification. It contains more than 2900 stars and is estimated to be about 250 million years old. M11 is receding from us at a speed of 27 km ...
NS2-M3C17_-_The_Stars_Exam
... The position and temperature of other nearby stars in the universe. Thermonuclear fusion products drawn from other stars. Gravitational attraction of nearby stars. Amount of gases and cosmic dust which it gathers in formative stages. ...
... The position and temperature of other nearby stars in the universe. Thermonuclear fusion products drawn from other stars. Gravitational attraction of nearby stars. Amount of gases and cosmic dust which it gathers in formative stages. ...
Star Formation
... If the star-forming region is too hot, the elements (HII, dust, etc.) are moving too fast for gravity to overcome Sometimes one big star gets started before its neighbors, and it heats the region up so no other stars can form – However, if the first stars to turn on aren’t too hot, their solar winds ...
... If the star-forming region is too hot, the elements (HII, dust, etc.) are moving too fast for gravity to overcome Sometimes one big star gets started before its neighbors, and it heats the region up so no other stars can form – However, if the first stars to turn on aren’t too hot, their solar winds ...
Stars and constellations
... 1. The Pleiades is a small but bright cluster of stars that look very good in binoculars. 2. The Crab nebula can’t be seen without a telescope, but it is the remains of a huge explosion when a star blew itself to pieces nearly a thousand years ago. 3. The Orion nebula can just be seen in the country ...
... 1. The Pleiades is a small but bright cluster of stars that look very good in binoculars. 2. The Crab nebula can’t be seen without a telescope, but it is the remains of a huge explosion when a star blew itself to pieces nearly a thousand years ago. 3. The Orion nebula can just be seen in the country ...
Astronomy
... The outer layers of the star grow bigger and slowly drift out into space. This material rejoins a nebula to be recycled into a new star The blue-white hot core is left and the “dead” star that is left behind is a white dwarf The glow coming from the core is left-over energy from the old star. The co ...
... The outer layers of the star grow bigger and slowly drift out into space. This material rejoins a nebula to be recycled into a new star The blue-white hot core is left and the “dead” star that is left behind is a white dwarf The glow coming from the core is left-over energy from the old star. The co ...
ISM and star formation
... Some protostars not massive (< 0.08 MSun) enough to begin fusion. These are Brown Dwarfs or failed stars. Very difficult to detect because so faint. First seen in 1994 with Hubble. How many are there? ...
... Some protostars not massive (< 0.08 MSun) enough to begin fusion. These are Brown Dwarfs or failed stars. Very difficult to detect because so faint. First seen in 1994 with Hubble. How many are there? ...
August
... M13 At a distance of 25,100 light years, this globular cluster in the constellation Hercules (HER-cueleez) is about 145 light years in diameter. The age of M13 has been estimated at over 10 billion years. It contains over 300,000 stars. At the center, stars are about 500 times more concentrated than ...
... M13 At a distance of 25,100 light years, this globular cluster in the constellation Hercules (HER-cueleez) is about 145 light years in diameter. The age of M13 has been estimated at over 10 billion years. It contains over 300,000 stars. At the center, stars are about 500 times more concentrated than ...
Star Formation
... Clouds and nebula • The interstellar medium is not uniform, but varies by large factors in density and temperature. • The clumps in the interstellar medium are clouds or nebulae (one nebula, two nebulae). ...
... Clouds and nebula • The interstellar medium is not uniform, but varies by large factors in density and temperature. • The clumps in the interstellar medium are clouds or nebulae (one nebula, two nebulae). ...
Script - ESA/Hubble
... Next, the outer layers are puffed out, forming a dense cloud of gas and dust that totally obscures the visible light from the star. This stage, called a pre-planetary, or protoplanetary nebula, is tough to observe as it’s so faint — only dim infrared emissions from the dust cloud and reflected starl ...
... Next, the outer layers are puffed out, forming a dense cloud of gas and dust that totally obscures the visible light from the star. This stage, called a pre-planetary, or protoplanetary nebula, is tough to observe as it’s so faint — only dim infrared emissions from the dust cloud and reflected starl ...
20.1 A Solar System is Born
... increases and the stage is set for stars to form.” Solar nebula – the cloud of gas and dust that formed our solar system. ...
... increases and the stage is set for stars to form.” Solar nebula – the cloud of gas and dust that formed our solar system. ...
Orion Nebula
The Orion Nebula (also known as Messier 42, M42, or NGC 1976) is a diffuse nebula situated in the Milky Way, being south of Orion's Belt in the constellation of Orion. It is one of the brightest nebulae, and is visible to the naked eye in the night sky. M42 is located at a distance of 1,344 ± 20 light years and is the closest region of massive star formation to Earth. The M42 nebula is estimated to be 24 light years across. It has a mass of about 2000 times the mass of the Sun. Older texts frequently refer to the Orion Nebula as the Great Nebula in Orion or the Great Orion Nebula.The Orion Nebula is one of the most scrutinized and photographed objects in the night sky, and is among the most intensely studied celestial features. The nebula has revealed much about the process of how stars and planetary systems are formed from collapsing clouds of gas and dust. Astronomers have directly observed protoplanetary disks, brown dwarfs, intense and turbulent motions of the gas, and the photo-ionizing effects of massive nearby stars in the nebula.