Formation of Solar System
... a magnetic field associated with it. Matter close to the nucleus was also partially ionised and moved with it. T for disc fell as we moved away from the nucleus so that more and more electrically neutral molecules would have been found as we moved out from the centre. As the charged particles were ...
... a magnetic field associated with it. Matter close to the nucleus was also partially ionised and moved with it. T for disc fell as we moved away from the nucleus so that more and more electrically neutral molecules would have been found as we moved out from the centre. As the charged particles were ...
ASTR3007/4007/6007: Part I: Stars Semester 1, 2017 Problem set 1
... 20◦ C. At what wavelength does the emission peak, and in what part of the electromagnetic spectrum does this lie? (d) [5 points] Given you answer to part (c), why is the basketball orange? 2. Measuring Stellar Masses Using Spectroscopic Binaries. [20 points] For spectroscopic binaries, we can direct ...
... 20◦ C. At what wavelength does the emission peak, and in what part of the electromagnetic spectrum does this lie? (d) [5 points] Given you answer to part (c), why is the basketball orange? 2. Measuring Stellar Masses Using Spectroscopic Binaries. [20 points] For spectroscopic binaries, we can direct ...
F p = Fraction of good stars with planets
... Graphical The message consists of 1679 bits, arranged into 73 lines of 23 characters per line (these are both prime numbers, and may help the aliens decode the message). It consists, among other things, of the Arecibo telescope, our solar system, DNA, a stick figure of a human, and some of the bioc ...
... Graphical The message consists of 1679 bits, arranged into 73 lines of 23 characters per line (these are both prime numbers, and may help the aliens decode the message). It consists, among other things, of the Arecibo telescope, our solar system, DNA, a stick figure of a human, and some of the bioc ...
12/08/14-- Student ID ______ TA Name
... 4. Superman left the planet Krypton as an infant 27 years ago just before its destruction. Krypton orbited the star Caph, a spectral type F star. Caph is 54 light years away; thus Superman could have looked back in time and seen his home blow up. Here’s the question: The full spectrum of light was e ...
... 4. Superman left the planet Krypton as an infant 27 years ago just before its destruction. Krypton orbited the star Caph, a spectral type F star. Caph is 54 light years away; thus Superman could have looked back in time and seen his home blow up. Here’s the question: The full spectrum of light was e ...
X-ray emission and the incidence of magnetic fields in the massive
... angle of the rotation axis, β is the angle between the magnetic axis and the rotation axis, φ is the rotational phase and B is the polar field strength. For each configuration, we calculated the reduced χ2 of the model fit to the observed LSD Stokes V profiles. Assuming that only the phase may chang ...
... angle of the rotation axis, β is the angle between the magnetic axis and the rotation axis, φ is the rotational phase and B is the polar field strength. For each configuration, we calculated the reduced χ2 of the model fit to the observed LSD Stokes V profiles. Assuming that only the phase may chang ...
Science 09 Space Review 1. Know what a light year is
... b) Our sun is in adulthood http://sunshine.chpc.utah.edu/Labs/StarLife/starlife_main.html c) A red giant fuses helium into carbon and this requires higher temperatures than fusing hydrogen into helium which is what our sun does d) Once a star runs out of fuel for fusion, the thermal pressure outward ...
... b) Our sun is in adulthood http://sunshine.chpc.utah.edu/Labs/StarLife/starlife_main.html c) A red giant fuses helium into carbon and this requires higher temperatures than fusing hydrogen into helium which is what our sun does d) Once a star runs out of fuel for fusion, the thermal pressure outward ...
ASTR 105 Intro Astronomy: The Solar System
... Our view from Stony Brook • Stars near the north celestial pole are circumpolar and never set. • We cannot see stars near the south celestial pole. • All other stars (and Sun, Moon, planets) rise in east and set in west. This star is up some of the time and down ...
... Our view from Stony Brook • Stars near the north celestial pole are circumpolar and never set. • We cannot see stars near the south celestial pole. • All other stars (and Sun, Moon, planets) rise in east and set in west. This star is up some of the time and down ...
A time travel of 14 billion years
... known that some spiral nebulae (fuzzy clouds of light on the night sky) contained individual stars, but there was no consensus as to whether these were relatively small collections of stars within our own galaxy, the 'Milky Way' that stretches right across the sky, or whether these could be separate ...
... known that some spiral nebulae (fuzzy clouds of light on the night sky) contained individual stars, but there was no consensus as to whether these were relatively small collections of stars within our own galaxy, the 'Milky Way' that stretches right across the sky, or whether these could be separate ...
Celestial Motions - Stony Brook Astronomy
... • What does the universe look like from Earth? • Why do stars rise and set? • How does the sky change with latitude and over the year? ...
... • What does the universe look like from Earth? • Why do stars rise and set? • How does the sky change with latitude and over the year? ...
The Hubble Space Telescope - the first 10 years
... • Aim, to measure the expansion rate of the Universe => the age of the universe! • To do this we need a very accurate distance measurement, the velocity we already know • But how do we measure distances ? • Well some stars are known to pulsate at a rate which depends on their brightness. • We can us ...
... • Aim, to measure the expansion rate of the Universe => the age of the universe! • To do this we need a very accurate distance measurement, the velocity we already know • But how do we measure distances ? • Well some stars are known to pulsate at a rate which depends on their brightness. • We can us ...
Introduction to the sky
... The brightest stars were called stars of the first magnitude. Fainter stars were classified as being of second, third, fourth, or fifth magnitude. Now stars can be measured to +/- 0.01 magnitude. We have also expanded the scale to include negative values, and much larger positive values. Sirius, fo ...
... The brightest stars were called stars of the first magnitude. Fainter stars were classified as being of second, third, fourth, or fifth magnitude. Now stars can be measured to +/- 0.01 magnitude. We have also expanded the scale to include negative values, and much larger positive values. Sirius, fo ...
HABITABLE PLANETS For every star with planets, how many of
... 70 to 80 percent of all stars: If low-mass stars can have habitable planets with life, then they are the most common abodes for life in the universe, and we should be searching for signals from them. Also, they have very long main sequence lifetimes, so you could have civilizations as old as 1015 bi ...
... 70 to 80 percent of all stars: If low-mass stars can have habitable planets with life, then they are the most common abodes for life in the universe, and we should be searching for signals from them. Also, they have very long main sequence lifetimes, so you could have civilizations as old as 1015 bi ...
May 2013 - Joliet Junior College
... piece of space junk enters the atmosphere each day. Meanwhile, 100 tons of dust and rock fragments enter the Earth’s atmosphere each day as meteors. If you are concerned about the big rocks (asteroids) that may be passing the Earth this month, you can relax. 2004 BV102 (1.4 kilometers wide) will mis ...
... piece of space junk enters the atmosphere each day. Meanwhile, 100 tons of dust and rock fragments enter the Earth’s atmosphere each day as meteors. If you are concerned about the big rocks (asteroids) that may be passing the Earth this month, you can relax. 2004 BV102 (1.4 kilometers wide) will mis ...
Class Project Physics 1010-042, Physics 1010
... surrounding the heat engine (Tcold) is greater than 0, you will never achieve 100% efficiency. It is also impossible to raise the internal operating temperature of the heat engine to infinity. Question 13: If your car is not electric, it is a heat engine and is subject to the efficiency equation. Is ...
... surrounding the heat engine (Tcold) is greater than 0, you will never achieve 100% efficiency. It is also impossible to raise the internal operating temperature of the heat engine to infinity. Question 13: If your car is not electric, it is a heat engine and is subject to the efficiency equation. Is ...
1 Sep: 6.13am BST 15 Sep: 6.43am BST 30 Sep: 7.14am BST
... Looking southwest the sky is dominated by the constellations of Cygnus (the Swan), Lyra (the Lyre) and Aquila (the Eagle) whose brightest stars of Deneb, Vega and Altair respectively make up the Summer Triangle. The Swan’s beak is marked by Albireo and halfway between Albireo and Altair is Sagitta ( ...
... Looking southwest the sky is dominated by the constellations of Cygnus (the Swan), Lyra (the Lyre) and Aquila (the Eagle) whose brightest stars of Deneb, Vega and Altair respectively make up the Summer Triangle. The Swan’s beak is marked by Albireo and halfway between Albireo and Altair is Sagitta ( ...
Kerboodle Gravity Questions673 KB
... Institute for Extraterrestrial Physics (MPE) in Germany. An international team of astronomers photographed the star as it zoomed around the galactic centre at speeds ultimately exceeding 11 million mph (5,000 kilometres per second). Early this year, the star flitted precariously close to the black h ...
... Institute for Extraterrestrial Physics (MPE) in Germany. An international team of astronomers photographed the star as it zoomed around the galactic centre at speeds ultimately exceeding 11 million mph (5,000 kilometres per second). Early this year, the star flitted precariously close to the black h ...
Gravitational Collapse
... If density of gas is high, and temperature is low enough, H atoms can form H2. Unfortunately, no emission from H2 in the optical or radio bands. Therefore use, 1. Other molecules. For example, CO emits radiation at a wavelength of 2.6mm microwaves. 2. Dust. Dust (and molecules) are often found toget ...
... If density of gas is high, and temperature is low enough, H atoms can form H2. Unfortunately, no emission from H2 in the optical or radio bands. Therefore use, 1. Other molecules. For example, CO emits radiation at a wavelength of 2.6mm microwaves. 2. Dust. Dust (and molecules) are often found toget ...
The universe is faster, colder, and wackier than anything we can
... The coldest temperature allowed by the laws of physics is absolute zero, at –459.67°F (–273.15°C). Laboratory experiments have reached temperatures within a billionth of a degree of absolute zero, but to reach these unbelievably frigid depths requires complicated and expensive equipment. The natural ...
... The coldest temperature allowed by the laws of physics is absolute zero, at –459.67°F (–273.15°C). Laboratory experiments have reached temperatures within a billionth of a degree of absolute zero, but to reach these unbelievably frigid depths requires complicated and expensive equipment. The natural ...
Question 1 The star Regulus, in the constellation Leo, appears
... unit area varies with distance d according to which of the following laws (∝ means “proportional to”)? ...
... unit area varies with distance d according to which of the following laws (∝ means “proportional to”)? ...
1/2016
... age (estimates between 230 and 300 million years). Thirty stars are proven members and contained in a volume of about 7 light years diameter. Its apparent visual brightness of 4.6 magnitude corresponds to an absolute magnitude of -2.5, or an intrinsic luminosity of 830 suns. M39's brightest star is ...
... age (estimates between 230 and 300 million years). Thirty stars are proven members and contained in a volume of about 7 light years diameter. Its apparent visual brightness of 4.6 magnitude corresponds to an absolute magnitude of -2.5, or an intrinsic luminosity of 830 suns. M39's brightest star is ...
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.