PPT
... • The overall range of stellar masses runs from 0.08 times the mass of the Sun to about 150 times the mass of the Sun. • Masses are only known for stars that form binary systems, but about half of all stars are in fact in binary systems! – 0.08 MSun is approximately 80 MJupiter ...
... • The overall range of stellar masses runs from 0.08 times the mass of the Sun to about 150 times the mass of the Sun. • Masses are only known for stars that form binary systems, but about half of all stars are in fact in binary systems! – 0.08 MSun is approximately 80 MJupiter ...
Theories of Cosmic Evolution - DigitalCommons@University of
... the vast majority of these nebulre are of the peculiar type known as spiral. And where the structure can be at all made out, they are two-armed spirals; that is, they consist of a brighter central nucleus, from which emerge, at exactly opposite sides, two fainter arms or coils, which wind around the ...
... the vast majority of these nebulre are of the peculiar type known as spiral. And where the structure can be at all made out, they are two-armed spirals; that is, they consist of a brighter central nucleus, from which emerge, at exactly opposite sides, two fainter arms or coils, which wind around the ...
Habitable worlds with JWST: transit spectroscopy of the TRAPPIST
... The infrared James Webb Space Telescope (JWST ), due to launch in 2018, is predicted to dramatically change our understanding of exoplanet atmospheres. Included in this is the tantalising possibility that, if a suitable target is obtained, JWST might provide the first atmospheric data for an Earth-s ...
... The infrared James Webb Space Telescope (JWST ), due to launch in 2018, is predicted to dramatically change our understanding of exoplanet atmospheres. Included in this is the tantalising possibility that, if a suitable target is obtained, JWST might provide the first atmospheric data for an Earth-s ...
Chapter 16 - The Solar System
... • Largest known volcano in the Solar System • Earth - Mauna Loa about 9 km ...
... • Largest known volcano in the Solar System • Earth - Mauna Loa about 9 km ...
Astronomy 12 - hrsbstaff.ednet.ns.ca
... (ii) The Sun's principal reaction is the proton-proton (p-p) chain reaction, in which 4 hydrogen atoms (protons) are converted into a 4-He nucleus (alpha particle). Each p-p reaction releases 4.2x10-12 Joules of energy. Use this number and the luminosity of the Sun to calculate how many p-p reaction ...
... (ii) The Sun's principal reaction is the proton-proton (p-p) chain reaction, in which 4 hydrogen atoms (protons) are converted into a 4-He nucleus (alpha particle). Each p-p reaction releases 4.2x10-12 Joules of energy. Use this number and the luminosity of the Sun to calculate how many p-p reaction ...
Theoretical Problem 3
... the ratio of mass M to radius R is the same and depends only on physical constants. Find the equation for the ratio M / R for stars fusing hydrogen. ...
... the ratio of mass M to radius R is the same and depends only on physical constants. Find the equation for the ratio M / R for stars fusing hydrogen. ...
Stellar Evolution - Lick Observatory
... telescopes we are observing the various stages of protostar contraction. • The presence of disks was predicted long ago and verified for the first time about ten years ago. We got lucky in that the disks were a little larger than expected. ...
... telescopes we are observing the various stages of protostar contraction. • The presence of disks was predicted long ago and verified for the first time about ten years ago. We got lucky in that the disks were a little larger than expected. ...
Chapter 30 Notes
... until it cannot be pressed further together. A hot, extremely dense core of matter is left behind. This mass is called a white dwarf and can shine for billions of years before it cools completely. Stars more massive than our sun do not become white dwarfs. Novas and Supernovas Nova- a star that sudd ...
... until it cannot be pressed further together. A hot, extremely dense core of matter is left behind. This mass is called a white dwarf and can shine for billions of years before it cools completely. Stars more massive than our sun do not become white dwarfs. Novas and Supernovas Nova- a star that sudd ...
Fulltext PDF - Indian Academy of Sciences
... Of whose true fixed and resting quality There is no fellow in the firmament. One important practice of scientists is to keep a log of what they do and observe. Nowhere has this been done with greater devotion than in astronomy where, since ancient times, one has been keeping accurate records of the ...
... Of whose true fixed and resting quality There is no fellow in the firmament. One important practice of scientists is to keep a log of what they do and observe. Nowhere has this been done with greater devotion than in astronomy where, since ancient times, one has been keeping accurate records of the ...
A Unique Environmental Studies Program
... The Clouds of Magellan. These clouds were first described by the explorer Magellan, and they are actually two satellites of our own Milky Way galaxy. These clouds are easily seen on a clear night, and they lie about 150,000 light years from earth. Close to the Small Mageflanic Cloud you may see what ...
... The Clouds of Magellan. These clouds were first described by the explorer Magellan, and they are actually two satellites of our own Milky Way galaxy. These clouds are easily seen on a clear night, and they lie about 150,000 light years from earth. Close to the Small Mageflanic Cloud you may see what ...
Exoplanets
... important requirement being the presence of liquid water. We will assume that if the temperature of the planet is right, there will be liquid water. Hydrogen and oxygen are common elements throughout space and so when planets form they usually contain water. If they don't, comets soon deliver water ...
... important requirement being the presence of liquid water. We will assume that if the temperature of the planet is right, there will be liquid water. Hydrogen and oxygen are common elements throughout space and so when planets form they usually contain water. If they don't, comets soon deliver water ...
Time From the Perspective of a Particle Physicist
... • If we use well-understood close stars to determine the overall brightness scale of a specific class of star, then measuring the spectrum can be used to give the distance for stars > 500 LY away 1. Determine Surface Temperature + spectral class of star 2. Determine where on HR diagram should go 3. ...
... • If we use well-understood close stars to determine the overall brightness scale of a specific class of star, then measuring the spectrum can be used to give the distance for stars > 500 LY away 1. Determine Surface Temperature + spectral class of star 2. Determine where on HR diagram should go 3. ...
The Hertzsprung-Russell Diagram
... Equal Radius Lines In general the hotter the star is the brighter it will be. Thus you would expect stars of the same size but different temperatures to form a diagonal line called an equal radius line. Equal Radius lines can be added to an H-R diagram ...
... Equal Radius Lines In general the hotter the star is the brighter it will be. Thus you would expect stars of the same size but different temperatures to form a diagonal line called an equal radius line. Equal Radius lines can be added to an H-R diagram ...
Some space objects are visible to the human eye.
... A constellation is a group of stars that form a pattern in the sky. In the constellation Cygnus, for example, a group of bright stars form the shape of a flying swan. Any other objects in that area of the sky, such as galaxies, are said to be located in Cygnus, even if they are not parts of the swan ...
... A constellation is a group of stars that form a pattern in the sky. In the constellation Cygnus, for example, a group of bright stars form the shape of a flying swan. Any other objects in that area of the sky, such as galaxies, are said to be located in Cygnus, even if they are not parts of the swan ...
Sirius Astronomer - Orange County Astronomers
... are hotter, so the patches are known as “hot spots”. Exactly how these clearings form and why they’re only found near the planet’s equator have long been mysteries. Using archived images from Cassini when it passed Jupiter on its way to Saturn, scientists have studied the hot spots and determined th ...
... are hotter, so the patches are known as “hot spots”. Exactly how these clearings form and why they’re only found near the planet’s equator have long been mysteries. Using archived images from Cassini when it passed Jupiter on its way to Saturn, scientists have studied the hot spots and determined th ...
Intro To The Solar System
... Earth has diameter 0.3 mm. Sun: ~ size of a small plum. Mercury, Venus, Earth, Mars: ~ size of a grain of salt. Jupiter: ~ size of an apple seed. Saturn: ~ slightly smaller than Jupiter’s “apple seed”. ...
... Earth has diameter 0.3 mm. Sun: ~ size of a small plum. Mercury, Venus, Earth, Mars: ~ size of a grain of salt. Jupiter: ~ size of an apple seed. Saturn: ~ slightly smaller than Jupiter’s “apple seed”. ...
`Daniel` – The Colonization of Tiamat
... we find that stars are actually Jupiter-class gas giant planets, and “galaxies” are solar systems. As revealed by Hubble photographs, the cores of galaxies appear as single stars (sometimes doubles or multiples, mostly single). The encircling cloud of the Milky Way galaxy is just the outer rim of OU ...
... we find that stars are actually Jupiter-class gas giant planets, and “galaxies” are solar systems. As revealed by Hubble photographs, the cores of galaxies appear as single stars (sometimes doubles or multiples, mostly single). The encircling cloud of the Milky Way galaxy is just the outer rim of OU ...
The Hertzsprung-Russell Diagram
... 1. Use the chart above to determine the color of the stars on the H-R diagram. 2. Use the colored pencils to color each of the stars the color that represents its temperature. 3. Circle the long line of stars running diagonally through the middle of the diagram. 4. Label these stars as the “main seq ...
... 1. Use the chart above to determine the color of the stars on the H-R diagram. 2. Use the colored pencils to color each of the stars the color that represents its temperature. 3. Circle the long line of stars running diagonally through the middle of the diagram. 4. Label these stars as the “main seq ...
history of astro outline 2014
... Ancient Babylonians develop number system based on 60 (led to time-keeping and angular measurements) and 12month calendar. Ancient Egyptians separated a day-night period into 24 separate hours and the year into 365 days ...
... Ancient Babylonians develop number system based on 60 (led to time-keeping and angular measurements) and 12month calendar. Ancient Egyptians separated a day-night period into 24 separate hours and the year into 365 days ...
the star
... • The sun – a typical yellow dwarf star. Type G2 with 8 planets • Proxima Centauri – closest of the triplet of stars loosely known as alpha-Centauri Proxima Centauri is a faint red star that orbits Alpha-Centauri A and B with a period of about one million years. Proxima Centauri is 4.22 light ye ...
... • The sun – a typical yellow dwarf star. Type G2 with 8 planets • Proxima Centauri – closest of the triplet of stars loosely known as alpha-Centauri Proxima Centauri is a faint red star that orbits Alpha-Centauri A and B with a period of about one million years. Proxima Centauri is 4.22 light ye ...
Exhibit Scavenger Hunt - Friends of the Observatory
... What makes stars different colors? The color of a star is based upon its temperature. ...
... What makes stars different colors? The color of a star is based upon its temperature. ...
Way Milky the MAPPING
... would see that bulge, higher at each end and taking a slight dip in the middle, like an astrophysical saddle-back ridge. Or, as Alice Quillen, professor of physics and astronomy, likes to think of it: shaped like a peanut shell. How did the bulge get its shape? That’s a question Quillen, along with ...
... would see that bulge, higher at each end and taking a slight dip in the middle, like an astrophysical saddle-back ridge. Or, as Alice Quillen, professor of physics and astronomy, likes to think of it: shaped like a peanut shell. How did the bulge get its shape? That’s a question Quillen, along with ...