Hot-plate model of stars March 14 − Observed properties of stars
... Hot-plate model of a star Hertzsprung-Russell Diagram Dwarfs, giants, & white dwarfs ...
... Hot-plate model of a star Hertzsprung-Russell Diagram Dwarfs, giants, & white dwarfs ...
Bill Nye – Outer Space Worksheet
... c. 540 million kilometers 14. It will take light at least forty years to reach the nearest star. b. False ...
... c. 540 million kilometers 14. It will take light at least forty years to reach the nearest star. b. False ...
Neutron Stars
... B. Yes, neutron stars always give off pulses of light which we can detect with sensitive enough telescopes. C. No, some neutron stars don’t spin. D. No, it depends on the orientation of the neutron star’s magnetic field. ...
... B. Yes, neutron stars always give off pulses of light which we can detect with sensitive enough telescopes. C. No, some neutron stars don’t spin. D. No, it depends on the orientation of the neutron star’s magnetic field. ...
Chapter 3: Elements and the Periodic Table
... produce elements heavier than oxygen • Eventually, shrinks and its elements blow away o Forms a nebula – cloudlike region of gases. ...
... produce elements heavier than oxygen • Eventually, shrinks and its elements blow away o Forms a nebula – cloudlike region of gases. ...
Document
... Note: Numerical modeling is often used in the study of stellar structure and evolution - the timescale over which a star is evolves is too long for us to follow the evolution of any one star. Also, numerical modeling allows us to build up a picture of things that we cannot see (such as the core of a ...
... Note: Numerical modeling is often used in the study of stellar structure and evolution - the timescale over which a star is evolves is too long for us to follow the evolution of any one star. Also, numerical modeling allows us to build up a picture of things that we cannot see (such as the core of a ...
3.5-star-id
... Northern horizon • The Big Dipper (in Ursa Major) is the most easily recognized asterism (it’s not a constellation!) • Use it to find The Little Dipper (Ursa Minor), Polaris (Ursa Minor), Cassiopeia, Arcturus (Bootes), Vega (Lyra), Deneb (Cygus), Altair (Aquila). • Deneb is part of the asterism, Th ...
... Northern horizon • The Big Dipper (in Ursa Major) is the most easily recognized asterism (it’s not a constellation!) • Use it to find The Little Dipper (Ursa Minor), Polaris (Ursa Minor), Cassiopeia, Arcturus (Bootes), Vega (Lyra), Deneb (Cygus), Altair (Aquila). • Deneb is part of the asterism, Th ...
December 2015 - Hermanus Astronomy
... dune Curiosity will investigate is as tall as a two-story building and as broad as a football field. The Bagnold Dunes are active — images from orbit indicate some of them are migrating as much as about 1m per Earth year. No active dunes have been visited anywhere in the solar system besides Earth. ...
... dune Curiosity will investigate is as tall as a two-story building and as broad as a football field. The Bagnold Dunes are active — images from orbit indicate some of them are migrating as much as about 1m per Earth year. No active dunes have been visited anywhere in the solar system besides Earth. ...
January 2013 - astronomy for beginners
... It can be found below the line of three stars of his belt normal orbit to a higher orbit. After a very short time the where there is a vertical line of stars forming his sword electron jumps back to its original orbit and emits a flash of (hanging from his belt). About half way down the line light. ...
... It can be found below the line of three stars of his belt normal orbit to a higher orbit. After a very short time the where there is a vertical line of stars forming his sword electron jumps back to its original orbit and emits a flash of (hanging from his belt). About half way down the line light. ...
Announcements Evolution of High-Mass Stars: Red Supergiants
... • To map the Milky Way Galaxy, we need to measure distances to stars. • Parallax only works for nearby stars (within about 1000 light years) • For more distant stars, we use Standard Candles Car Headlights are standard candles: We use them to determine the car’s distance ...
... • To map the Milky Way Galaxy, we need to measure distances to stars. • Parallax only works for nearby stars (within about 1000 light years) • For more distant stars, we use Standard Candles Car Headlights are standard candles: We use them to determine the car’s distance ...
The Magnitude Scale
... are not "exact", in that celestial objects are often measured to a precision or 0.1 or 0.01 magnitude; for example, Sirius shines at V = -1.47 (Yale Bright Star Catalogue), and the planet Venus varies in brightness generally from magnitude -4.5 to -3.7. Note that a comet of magnitude 5 will not be a ...
... are not "exact", in that celestial objects are often measured to a precision or 0.1 or 0.01 magnitude; for example, Sirius shines at V = -1.47 (Yale Bright Star Catalogue), and the planet Venus varies in brightness generally from magnitude -4.5 to -3.7. Note that a comet of magnitude 5 will not be a ...
The Earth in the Universe
... bulge. They contain mostly blue stars, gas and dust. • The Earth is located in one of the spiral arms. • There are blue stars and red stars in our galaxy. • Blue stars are young and hot stars. • Red stars are old and cool stars. ...
... bulge. They contain mostly blue stars, gas and dust. • The Earth is located in one of the spiral arms. • There are blue stars and red stars in our galaxy. • Blue stars are young and hot stars. • Red stars are old and cool stars. ...
Galaxies Powerpoint
... • The largest galaxies contain more than a trillion stars. Smaller galaxies may have only a few million. • Scientists estimate the number of stars from the size and brightness of the galaxy. ...
... • The largest galaxies contain more than a trillion stars. Smaller galaxies may have only a few million. • Scientists estimate the number of stars from the size and brightness of the galaxy. ...
Main Types of Galaxies
... • The largest galaxies contain more than a trillion stars. Smaller galaxies may have only a few million. • Scientists estimate the number of stars from the size and brightness of the galaxy. ...
... • The largest galaxies contain more than a trillion stars. Smaller galaxies may have only a few million. • Scientists estimate the number of stars from the size and brightness of the galaxy. ...
Microlensing in NZ
... galaxy would contribute significantly to the frequency of detectable events. For, the associated pulses would be so weak and infrequent and of such fleeting duration – perhaps a few hours – as to defy detection.” ...
... galaxy would contribute significantly to the frequency of detectable events. For, the associated pulses would be so weak and infrequent and of such fleeting duration – perhaps a few hours – as to defy detection.” ...
The H-R Diagram
... • Thus, it follows the cooling curve of a white dwarf; down and to the right on the HR diagram • So, what we see is a hot stellar corpse surrounded by an expanding and thinning cloud of fluorescent gas = a Planetary Nebula ...
... • Thus, it follows the cooling curve of a white dwarf; down and to the right on the HR diagram • So, what we see is a hot stellar corpse surrounded by an expanding and thinning cloud of fluorescent gas = a Planetary Nebula ...
File
... flashlight, and you'll see the bright spot on the wall moving a little. Back away from the wall, and keep wiggling the flashlight just as much as before. The spot will move faster and further as you increase your distance from the wall. If you get far enough away, you can try to hold the light still ...
... flashlight, and you'll see the bright spot on the wall moving a little. Back away from the wall, and keep wiggling the flashlight just as much as before. The spot will move faster and further as you increase your distance from the wall. If you get far enough away, you can try to hold the light still ...
Leaving the Main Sequence
... 3. Red giant – Core begins to run out of hydrogen fuel, begins to contract and heats. Remaining hydrogen burns faster in the shell around core and generates extra energy, disrupting hydrostatic equilibrium and causing outer regions to expand and cool. Star turns red. – Core (helium) becomes a degene ...
... 3. Red giant – Core begins to run out of hydrogen fuel, begins to contract and heats. Remaining hydrogen burns faster in the shell around core and generates extra energy, disrupting hydrostatic equilibrium and causing outer regions to expand and cool. Star turns red. – Core (helium) becomes a degene ...
lecture11
... However, a big cold object can emit the same or more energy (depending on how big it is) than a small, hotter one ...
... However, a big cold object can emit the same or more energy (depending on how big it is) than a small, hotter one ...
Stellar Parallax Problems
... 6. A. The European Space Agency sent an exact copy of the Gaia mission to orbit Saturn and take parallax measurements, what would be the largest distance to a star that the Gaia spacecraft could measure from that orbit? ...
... 6. A. The European Space Agency sent an exact copy of the Gaia mission to orbit Saturn and take parallax measurements, what would be the largest distance to a star that the Gaia spacecraft could measure from that orbit? ...
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.