Scientific Method
... • Ionization: the process by which an atom loses electrons • Ion: an atom that has become electrically charged due to the loss of one or more electrons. Note that isolated atoms are electronically neutral – i.e, they have the same number of protons & neutrons – unless they are ...
... • Ionization: the process by which an atom loses electrons • Ion: an atom that has become electrically charged due to the loss of one or more electrons. Note that isolated atoms are electronically neutral – i.e, they have the same number of protons & neutrons – unless they are ...
astronomy timeline
... J. Hartmann finds interstellar absorption lines. Hartmann found a very narrow line of calcium that didn't change in wavelength as the spectral lines from the two stars in a binary star system shifted back and forth. ...
... J. Hartmann finds interstellar absorption lines. Hartmann found a very narrow line of calcium that didn't change in wavelength as the spectral lines from the two stars in a binary star system shifted back and forth. ...
Diapositiva 1
... Side View of the Milky Way The “halo” is really the “stellar halo” – turns out there’s actually a larger halo we can’t even see! ...
... Side View of the Milky Way The “halo” is really the “stellar halo” – turns out there’s actually a larger halo we can’t even see! ...
Before Humankind - Salem State University
... What existed before the universe came into existence remains unknown. However, the various stages that led from the moment when the first tiny speck appeared 13.7 billion years ago to now have become clear. It began with a flowing forth of trillions-of-degrees hot energy and matter moving faster tha ...
... What existed before the universe came into existence remains unknown. However, the various stages that led from the moment when the first tiny speck appeared 13.7 billion years ago to now have become clear. It began with a flowing forth of trillions-of-degrees hot energy and matter moving faster tha ...
Lecture Notes - NMSU Astronomy
... • Photosphere is dense enough to radiate light but not too dense so that photons can escape; thus it is where spectrum of star is emitted and where the absorption lines arise. • Chromosphere is active, hotter and lower density than photosphere is where emission occurs (hot, low density gas). This ...
... • Photosphere is dense enough to radiate light but not too dense so that photons can escape; thus it is where spectrum of star is emitted and where the absorption lines arise. • Chromosphere is active, hotter and lower density than photosphere is where emission occurs (hot, low density gas). This ...
Coursework 6 File
... The luminosity of the Sun is L = 3.8 × 1026 W, but when it evolves to the red-giant phase it will reach a value approximately 1000 times larger than the present-day value. Mars orbits the Sun at a distance amars ≈ 1.5 AU (where 1 AU = 1.5 × 1011 m). The radius of Mars is Rmars = 3400 km. The Stefan ...
... The luminosity of the Sun is L = 3.8 × 1026 W, but when it evolves to the red-giant phase it will reach a value approximately 1000 times larger than the present-day value. Mars orbits the Sun at a distance amars ≈ 1.5 AU (where 1 AU = 1.5 × 1011 m). The radius of Mars is Rmars = 3400 km. The Stefan ...
Untitled
... These clouds will collapse to form stars and planetary systems Typical Sizes of MCs • 30 to 300 parsec • 100 to 1000 light years ...
... These clouds will collapse to form stars and planetary systems Typical Sizes of MCs • 30 to 300 parsec • 100 to 1000 light years ...
Measuring the Masses of Galaxies in the Sloan Digital Sky Survey
... knowing the orbital velocity of the Earth around the Sun (v), and also the distance between the Earth and the Sun (R), we can measure the mass of the Sun (M) M = (Δv)2R / G (G is Newton’s gravitational constant) exactly the same technique can be used to measure the mass of a galaxy ...
... knowing the orbital velocity of the Earth around the Sun (v), and also the distance between the Earth and the Sun (R), we can measure the mass of the Sun (M) M = (Δv)2R / G (G is Newton’s gravitational constant) exactly the same technique can be used to measure the mass of a galaxy ...
Powerpoint for today
... So if the Sun's lifetime is 10 billion years, the smallest 0.1 MSun star's lifetime is 1 trillion years. ...
... So if the Sun's lifetime is 10 billion years, the smallest 0.1 MSun star's lifetime is 1 trillion years. ...
mass of star
... So if the Sun's lifetime is 10 billion years, the smallest 0.1 MSun star's lifetime is 1 trillion years. ...
... So if the Sun's lifetime is 10 billion years, the smallest 0.1 MSun star's lifetime is 1 trillion years. ...
Birth of Stars - High Energy Physics at Wayne State
... Low mass stars are more common. For main sequence stars, mass and luminosity are related such that high mass stars have high luminosity and low mass stars have low luminosity. Galaxies, like the Milky Way, contain enough gas and dust to create billions of new stars. February 14, 2006 ...
... Low mass stars are more common. For main sequence stars, mass and luminosity are related such that high mass stars have high luminosity and low mass stars have low luminosity. Galaxies, like the Milky Way, contain enough gas and dust to create billions of new stars. February 14, 2006 ...
WHERE DO ELEMENTS COME FROM?
... • Prior to 10-6seconds, no matter, only energy • 10-6 seconds - quarks formed • By 1 second - all matter created – Tuniverse=1010 K – 7 protons for every 1 neutron – This results in 75% H and 25% He ...
... • Prior to 10-6seconds, no matter, only energy • 10-6 seconds - quarks formed • By 1 second - all matter created – Tuniverse=1010 K – 7 protons for every 1 neutron – This results in 75% H and 25% He ...
Looking for Signs of Life Answer Key
... Student answers will vary. Students may think that scientists should search for the gases that are present on Earth. Others may think that scientists should look for gases that were present on Earth when life was just starting. Others may suggest that the atmosphere could be entirely different becau ...
... Student answers will vary. Students may think that scientists should search for the gases that are present on Earth. Others may think that scientists should look for gases that were present on Earth when life was just starting. Others may suggest that the atmosphere could be entirely different becau ...
File
... now a fused stump, but even the first long-range photographs told us that here was the work of intelligence. A little later we detected the continent-wide pattern of radioactivity that had been buried in the rock. Even if the pylon above the Vault had been destroyed, this would have remained, an imm ...
... now a fused stump, but even the first long-range photographs told us that here was the work of intelligence. A little later we detected the continent-wide pattern of radioactivity that had been buried in the rock. Even if the pylon above the Vault had been destroyed, this would have remained, an imm ...
Integrative Studies 410 Our Place in the Universe
... distance ladder out as far as we can see Cepheids – about 50 million ly • In 1920 Hubble used this technique to measure the distance to Andromeda (about 2 million ly) • Works best for periodic variables ...
... distance ladder out as far as we can see Cepheids – about 50 million ly • In 1920 Hubble used this technique to measure the distance to Andromeda (about 2 million ly) • Works best for periodic variables ...
Can you figure out which of the stars shown here have planets
... Star name: Sun Star mass: 300,000 times the mass of Earth Distance: 8 light-minutes Planets known: 8 (plus dwarf planets and asteroids) Planet masses: from 5% to 300 times Earth Our sun is also a star, and we know of eight planets that orbit it. Can you name them all? You can see most of them in the ...
... Star name: Sun Star mass: 300,000 times the mass of Earth Distance: 8 light-minutes Planets known: 8 (plus dwarf planets and asteroids) Planet masses: from 5% to 300 times Earth Our sun is also a star, and we know of eight planets that orbit it. Can you name them all? You can see most of them in the ...
Constellations - Sierra Star Gazers
... Just rising over the northeastern horizon is the constellation Perseus. Between Perseus and Cassiopeia is found one the most interesting objects to be seen through a small to medium aperture scope. The best thing is that it so easy to locate. NGC 869 & 884, popularly known as the Double Cluster, are ...
... Just rising over the northeastern horizon is the constellation Perseus. Between Perseus and Cassiopeia is found one the most interesting objects to be seen through a small to medium aperture scope. The best thing is that it so easy to locate. NGC 869 & 884, popularly known as the Double Cluster, are ...
R136a1
RMC 136a1 (usually abbreviated to R136a1) is a Wolf-Rayet star located at the center of R136, the central condensation of stars of the large NGC 2070 open cluster in the Tarantula Nebula. It lies at a distance of about 50 kiloparsecs (163,000 light-years) in the Large Magellanic Cloud. It has the highest mass and luminosity of any known star, at 265 M☉ and 8.7 million L☉, and also one of the hottest at over 50,000 K.