Comet Lulin - indstate.edu
... Since Comet Lulin will be moving opposite the motion of the Earth, it will appear to approach us and move away especially fast. Beginning in February 2009, Comet Lulin will rise at about midnight local time, and will be about 6th or 7th magnitude. This won't be bright enough to go out and look at ...
... Since Comet Lulin will be moving opposite the motion of the Earth, it will appear to approach us and move away especially fast. Beginning in February 2009, Comet Lulin will rise at about midnight local time, and will be about 6th or 7th magnitude. This won't be bright enough to go out and look at ...
Supplemental Resources - Morehead Planetarium and Science
... The color of a star depends on its surface temperature. Our Sun’s surface temperature is about 6,000 Kelvin. Although it looks yellow from here on Earth, the light of the Sun would actually look very white from space. This white light coming off of the Sun is because its temperature is 6,000 Kelvin. ...
... The color of a star depends on its surface temperature. Our Sun’s surface temperature is about 6,000 Kelvin. Although it looks yellow from here on Earth, the light of the Sun would actually look very white from space. This white light coming off of the Sun is because its temperature is 6,000 Kelvin. ...
Word doc - UC-HiPACC - University of California, Santa Cruz
... Earth-like planets are low mass compared to stars. Even so, planets revolve not around a host star’s center (axis of rotation); instead, both star and planets revolve around the planetary system’s barycenter (center of mass). Like a smaller boy gamely wrestling a bigger one, the gravitational mass o ...
... Earth-like planets are low mass compared to stars. Even so, planets revolve not around a host star’s center (axis of rotation); instead, both star and planets revolve around the planetary system’s barycenter (center of mass). Like a smaller boy gamely wrestling a bigger one, the gravitational mass o ...
It`s Official! Instarmac is one of the UK`s Times TOP 100
... brands, is pleased to announce that they have officially been named in this year’s TIME TOP 100 companies to work for! The Times’s yearly awards are based on research conducted by Best Companies, where Instarmac were also awarded 2 Star status. Both accreditations are the tip of the iceberg for Inst ...
... brands, is pleased to announce that they have officially been named in this year’s TIME TOP 100 companies to work for! The Times’s yearly awards are based on research conducted by Best Companies, where Instarmac were also awarded 2 Star status. Both accreditations are the tip of the iceberg for Inst ...
Nucleus hydrogen helium Relative Mass 1.007825 4.0037 Helium
... star may eventually form a black hole. To gain full marks in this question you should write your ideas in good English. Put them into a sensible order and use the correct scientific words. ...
... star may eventually form a black hole. To gain full marks in this question you should write your ideas in good English. Put them into a sensible order and use the correct scientific words. ...
The Sun PPT
... great as the Earth's diameter. • About 1.3 million Earths could fit inside the sun. • The mass of the sun is 1.989 x 1030kilograms, about 332,000 times the mass of the Earth. • Volume of the Sun is about 1.5 million times that of Earth’s • Mean density of Sun = 1408 (kg/m3) • Mean density of Earth = ...
... great as the Earth's diameter. • About 1.3 million Earths could fit inside the sun. • The mass of the sun is 1.989 x 1030kilograms, about 332,000 times the mass of the Earth. • Volume of the Sun is about 1.5 million times that of Earth’s • Mean density of Sun = 1408 (kg/m3) • Mean density of Earth = ...
a Supernova!
... 1. The force of gravity is roughly constant as you fall, because your distance from the center of the Earth changes very little. So you accelerate steadily. 2. Eventually, air resistance becomes important and sets a limiting ‘terminal velocity.’( A parachute helps to make that a ...
... 1. The force of gravity is roughly constant as you fall, because your distance from the center of the Earth changes very little. So you accelerate steadily. 2. Eventually, air resistance becomes important and sets a limiting ‘terminal velocity.’( A parachute helps to make that a ...
Ch. 27 Notes
... OUR SUN A star like our sun began in a nebula. Friction and gravity pull elements together and a star is formed. Our star (the sun) is within the main ...
... OUR SUN A star like our sun began in a nebula. Friction and gravity pull elements together and a star is formed. Our star (the sun) is within the main ...
Galaxies - Indiana University Astronomy
... Part 7: Supernova in M51 At least two supernovae have been detected in recent years in the nearby Whirlpool Galaxy, Messier 51. M51 is located at a distance of about 31 million light years (about 10 megaparsecs) in the direction of the constellation Canes Venatici. Stars can explode as supernovae in ...
... Part 7: Supernova in M51 At least two supernovae have been detected in recent years in the nearby Whirlpool Galaxy, Messier 51. M51 is located at a distance of about 31 million light years (about 10 megaparsecs) in the direction of the constellation Canes Venatici. Stars can explode as supernovae in ...
7_Big_bang
... determine amounts of radioactive Thorium and Uranium in ancient stars in halo of Milky Way galaxy. This is done by observing spectral lines (particular frequencies of light) from U and Th in the star light. This gives a direct radioactive age of these stars of 12 +/- 3 B. years. Three independent wa ...
... determine amounts of radioactive Thorium and Uranium in ancient stars in halo of Milky Way galaxy. This is done by observing spectral lines (particular frequencies of light) from U and Th in the star light. This gives a direct radioactive age of these stars of 12 +/- 3 B. years. Three independent wa ...
Scales of the Universe
... • The Main Sequence is just a manifestation of the relationship between Mass and Luminosity: L ~ M3.5 • The more massive the star the larger its weight • The larger the weight, the larger the pressure • The larger the pressure, the higher the temperature • The higher the temperature, the more energe ...
... • The Main Sequence is just a manifestation of the relationship between Mass and Luminosity: L ~ M3.5 • The more massive the star the larger its weight • The larger the weight, the larger the pressure • The larger the pressure, the higher the temperature • The higher the temperature, the more energe ...
Big Bang Theory
... Occurs when sun is blocked by the moon Sun, moon, Earth If the moon is partially blocking the sun, a partial solar eclipse will occur ...
... Occurs when sun is blocked by the moon Sun, moon, Earth If the moon is partially blocking the sun, a partial solar eclipse will occur ...
Solutions
... by the newly formed OB Association stars that emit most of their energy as high-energy short-wavelength hardUV photons. The photons from the OB Association stars “power up” the HII region and keep it fluorescing. Thus the OB Association forms first and then the HII region is created around the vicin ...
... by the newly formed OB Association stars that emit most of their energy as high-energy short-wavelength hardUV photons. The photons from the OB Association stars “power up” the HII region and keep it fluorescing. Thus the OB Association forms first and then the HII region is created around the vicin ...
AST 301 Test #3 Friday Nov. 12 Name: 1. a) The Sun is in
... Energy generation by nuclear fusion inside the star balances energy radiated from the surface of the star. So it doesn’t change its temperature. b) Give an example of an equilibrium (not necessarily an astronomical example) different from hydrostatic and thermal equilibrium. Water flowing into a buc ...
... Energy generation by nuclear fusion inside the star balances energy radiated from the surface of the star. So it doesn’t change its temperature. b) Give an example of an equilibrium (not necessarily an astronomical example) different from hydrostatic and thermal equilibrium. Water flowing into a buc ...
Stars and Galaxies - Lunar and Planetary Institute
... from all directions at once radiation left over from the Big Bang In June 1995, scientists detected helium in the far reaches of the universe - consistent with an important aspect of the Big Bang theory that a mixture of hydrogen (75%) and helium (25%) was created at the beginning of the universe ...
... from all directions at once radiation left over from the Big Bang In June 1995, scientists detected helium in the far reaches of the universe - consistent with an important aspect of the Big Bang theory that a mixture of hydrogen (75%) and helium (25%) was created at the beginning of the universe ...
The Sun and other Stars
... coolest is: ______________________ A star’s spectral class is determined by the lines in its spectrum Hot objects are blue and cool objects are red. Class O & B stars are bluish, K & M stars are reddish. ...
... coolest is: ______________________ A star’s spectral class is determined by the lines in its spectrum Hot objects are blue and cool objects are red. Class O & B stars are bluish, K & M stars are reddish. ...
ONLINE practice exam
... 2. A supernova goes off in a galaxy whose cosmological redshift is z =0.2. From its maximum brightness, astronomers determine that it is located at a distance of 1000 Mpc. (a) What is the observed wavelength of the HI spectral line from this galaxy? (The rest wavelength is 21.1cm) (b) Use this info ...
... 2. A supernova goes off in a galaxy whose cosmological redshift is z =0.2. From its maximum brightness, astronomers determine that it is located at a distance of 1000 Mpc. (a) What is the observed wavelength of the HI spectral line from this galaxy? (The rest wavelength is 21.1cm) (b) Use this info ...
Earth in Space 19-1
... because it receives sunlight more directly than the poles. Without the tilt Earth would not have seasons. Summer and winter are not affected by changes in Earth's distance from the sun. In fact, when the Northern Hemisphere is having summer, Earth is at its greatest distance from the sun. ...
... because it receives sunlight more directly than the poles. Without the tilt Earth would not have seasons. Summer and winter are not affected by changes in Earth's distance from the sun. In fact, when the Northern Hemisphere is having summer, Earth is at its greatest distance from the sun. ...
star
... planet orbits • This means that the actual distance between the sun and each planet varies throughout the year NOT what causes the seasons ...
... planet orbits • This means that the actual distance between the sun and each planet varies throughout the year NOT what causes the seasons ...
NORTH SOUTH EAST WEST
... The interior planets Mercury and Venus don’t have oppositions from the sun but rather they have what is called an elongation. This means they are at their farthest distance from the sun in the sky from our perspective on Earth making it the best time to look for these two planets. Both planets are f ...
... The interior planets Mercury and Venus don’t have oppositions from the sun but rather they have what is called an elongation. This means they are at their farthest distance from the sun in the sky from our perspective on Earth making it the best time to look for these two planets. Both planets are f ...
Introduction to Astronomy
... electromagnetic energy of the photons: 8% kinetic energy of the neutrinos: 1% ...
... electromagnetic energy of the photons: 8% kinetic energy of the neutrinos: 1% ...
Homework 3 available
... c. (10 points) Only the central 10% of the mass of the Sun is close enough to the core, i.e., hot and dense enough, for thermonuclear fusion to take place. With this in mind (and remembering that only 75% of the mass of the Sun is hydrogen) calculate how long the Sun can shine with its current lumin ...
... c. (10 points) Only the central 10% of the mass of the Sun is close enough to the core, i.e., hot and dense enough, for thermonuclear fusion to take place. With this in mind (and remembering that only 75% of the mass of the Sun is hydrogen) calculate how long the Sun can shine with its current lumin ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.