read in advance to speed your work
... stars in Orion (Table II). Plot the MV values (MV again is simply absolute magnitude, M, with the subscript indicating that the magnitude is measured in the visual part of the spectrum) against the spectral classification for the first 8 stars in Table II. Make carefully positioned round points just ...
... stars in Orion (Table II). Plot the MV values (MV again is simply absolute magnitude, M, with the subscript indicating that the magnitude is measured in the visual part of the spectrum) against the spectral classification for the first 8 stars in Table II. Make carefully positioned round points just ...
Volume 20 Number 4 March 2012 - Forsyth Astronomical Society
... Peering deep inside the hub of the Andromeda galaxy, the Hubble Space Telescope has uncovered a large, rare population of hot, bright stars. Blue is typically an indicator of hot, young stars but these stellar oddities are aging, Sun-like stars that have prematurely cast off their outer layers of ma ...
... Peering deep inside the hub of the Andromeda galaxy, the Hubble Space Telescope has uncovered a large, rare population of hot, bright stars. Blue is typically an indicator of hot, young stars but these stellar oddities are aging, Sun-like stars that have prematurely cast off their outer layers of ma ...
formation1
... • It takes the Sun about 250 million years to orbit the Galaxy once. • The circumference of the orbit is about 200,000 light years. Let just call it 250,000 light years. (for ease of calculation) • If an O-star forms that has the same orbit as the Sun but has a total lifetime of 1 million years. • ...
... • It takes the Sun about 250 million years to orbit the Galaxy once. • The circumference of the orbit is about 200,000 light years. Let just call it 250,000 light years. (for ease of calculation) • If an O-star forms that has the same orbit as the Sun but has a total lifetime of 1 million years. • ...
Slide 1 - Physics @ IUPUI
... • RR Lyrae – lower mass stars after they undergo their Helium flash (the sun will do this someday). • RR Lyrae are Horizontal Branch stars. • Metal rich and Metal poor Cepheid variables (Type I and II). • These are the higher mass stars which pass back and forth through the instability strip. ...
... • RR Lyrae – lower mass stars after they undergo their Helium flash (the sun will do this someday). • RR Lyrae are Horizontal Branch stars. • Metal rich and Metal poor Cepheid variables (Type I and II). • These are the higher mass stars which pass back and forth through the instability strip. ...
Star Types
... Most stars appear on the Main Sequence, where stars appear to obey a Mass-Luminosity relation: L M3.5 For example, if the mass of a star is doubled, its luminosity increases by a factor 23.5 ~ 11. Thus, stars like Sirius that are about twice as massive as the Sun are about 11 times as luminous. Th ...
... Most stars appear on the Main Sequence, where stars appear to obey a Mass-Luminosity relation: L M3.5 For example, if the mass of a star is doubled, its luminosity increases by a factor 23.5 ~ 11. Thus, stars like Sirius that are about twice as massive as the Sun are about 11 times as luminous. Th ...
Lecture 12
... spectral flux density of a source. – Allows for easy comparison of sources with immense ranges in flux density. – The magnitude system, let’s be honest, is not readily intuitive. ...
... spectral flux density of a source. – Allows for easy comparison of sources with immense ranges in flux density. – The magnitude system, let’s be honest, is not readily intuitive. ...
Homework #9 - Solutions - Department of Physics and Astronomy
... in the Pleiades star cluster The Pleiades star cluster is a young open star cluster located in the spiral arms, thus we would expect population I stars. d) in intergalactic space (beyond the halo) We would expect to see only old extreme population II stars (and possibly population III stars which ar ...
... in the Pleiades star cluster The Pleiades star cluster is a young open star cluster located in the spiral arms, thus we would expect population I stars. d) in intergalactic space (beyond the halo) We would expect to see only old extreme population II stars (and possibly population III stars which ar ...
Stars, Galaxies & Universe
... History of the Universe • Edwin Hubble discovered that the farther away a galaxy is from us, the faster it is moving away from ...
... History of the Universe • Edwin Hubble discovered that the farther away a galaxy is from us, the faster it is moving away from ...
here in Powerpoint format
... bA is the apparent brightness of star A bB is the apparent brightness of star B mA is the apparent magnitude of star A mB is the apparent magnitude of star B ...
... bA is the apparent brightness of star A bB is the apparent brightness of star B mA is the apparent magnitude of star A mB is the apparent magnitude of star B ...
Epsilon Aurigae Mystery and Opportunity
... began "regular" observing once every few years around 1842-1843, and the data from both men showed that the star became significantly fainter around 1847. • Observers later in the 19th Century recorded another dimming event in 1874-1875, and another in 19011902. ...
... began "regular" observing once every few years around 1842-1843, and the data from both men showed that the star became significantly fainter around 1847. • Observers later in the 19th Century recorded another dimming event in 1874-1875, and another in 19011902. ...
VOCAB astronomy File
... 1. SOLAR SYSTEM- a star (sun) and all the objects that orbit it 2. PLANET-an object that orbits the sun that is large enough for gravity to pull itself round 3. ORBIT- a path that an object takes during a revolution 4. TERRESTRIAL PLANET- an earth-like planet that has a rocky surface 5. ROTATION- On ...
... 1. SOLAR SYSTEM- a star (sun) and all the objects that orbit it 2. PLANET-an object that orbits the sun that is large enough for gravity to pull itself round 3. ORBIT- a path that an object takes during a revolution 4. TERRESTRIAL PLANET- an earth-like planet that has a rocky surface 5. ROTATION- On ...
eta carinae – nature`s own hadron collider
... ETA CARINAE IS ONE OF THE MOST MASSIVE STARS KNOWN. IT IS AROUND 100 SOLAR MASSES. THE UPPER LIMIT OF STAR SIZE IS THOUGHT TO BE AROUND 150 SOLAR MASSES. BECAUSE OF ITS SIZE, AND THE HIGH ENERGIES PRODUCED BECAUSE OF GRAVITY, IT IS UNSTABLE. ...
... ETA CARINAE IS ONE OF THE MOST MASSIVE STARS KNOWN. IT IS AROUND 100 SOLAR MASSES. THE UPPER LIMIT OF STAR SIZE IS THOUGHT TO BE AROUND 150 SOLAR MASSES. BECAUSE OF ITS SIZE, AND THE HIGH ENERGIES PRODUCED BECAUSE OF GRAVITY, IT IS UNSTABLE. ...
Astronomy Fall 2013 Final Exam History of Astronomy Know: speed
... The RR Lyrae stars all have periods of _0.5 to 1 day_____. ...
... The RR Lyrae stars all have periods of _0.5 to 1 day_____. ...
Stars Answers - Science Skool!
... 8. What happens to massive stars after the red super giant stage? Outer layers are thrown into space which scatters gas and dust into space and distributes the elements throughout space. The core left behind forms a neutron star or black hole if sufficient mass is left behind 9. Why do scientists be ...
... 8. What happens to massive stars after the red super giant stage? Outer layers are thrown into space which scatters gas and dust into space and distributes the elements throughout space. The core left behind forms a neutron star or black hole if sufficient mass is left behind 9. Why do scientists be ...
supernova!
... (They are too massive for Chandrasekhar to save them!) They should – and indeed do – collapse ...
... (They are too massive for Chandrasekhar to save them!) They should – and indeed do – collapse ...
Lecture 13 - Main Sequence Stars
... is that there is only one way to make a star with a given mass and chemical composition – if we start with a just formed protostar of a given mass and chemical composition, we can calculate how that star will evolve over its entire life. • This is extremely useful because it greatly simplifies the s ...
... is that there is only one way to make a star with a given mass and chemical composition – if we start with a just formed protostar of a given mass and chemical composition, we can calculate how that star will evolve over its entire life. • This is extremely useful because it greatly simplifies the s ...
Lab 8: Stellar Classification and the H
... extraordinarily luminous despite having low surface temperatures, and so they must have huge surface areas. These are called red giants. Stars at the lower left of the diagram are exceptionally faint even though they are very hot, so they must be small. They are called white dwarfs. Most stars are f ...
... extraordinarily luminous despite having low surface temperatures, and so they must have huge surface areas. These are called red giants. Stars at the lower left of the diagram are exceptionally faint even though they are very hot, so they must be small. They are called white dwarfs. Most stars are f ...
Star Maps and Constellations
... chases the bears around in circles, i.e. keeps them at the North pole ...
... chases the bears around in circles, i.e. keeps them at the North pole ...
Stars Crossword
... 4. a singularity whose gravity is so strong that nothing can escape - not even light 5. the area surrounding a blackhole where at that point nothing can escape 9. the middle age stage of a small star like ours 11. when a very large star's outer layer explodes outward with an amazing amount of force ...
... 4. a singularity whose gravity is so strong that nothing can escape - not even light 5. the area surrounding a blackhole where at that point nothing can escape 9. the middle age stage of a small star like ours 11. when a very large star's outer layer explodes outward with an amazing amount of force ...
Level 2 Earth and Space Science (91192) 2015
... Pleiades is known to us as Matariki, and is an open star cluster of over 1400 stars. Its appearance in the early morning sky marks the dawn of the Māori New Year. In this cluster there is a star named HD 23514, which has been observed with dust particles around it that are thought to be the beginnin ...
... Pleiades is known to us as Matariki, and is an open star cluster of over 1400 stars. Its appearance in the early morning sky marks the dawn of the Māori New Year. In this cluster there is a star named HD 23514, which has been observed with dust particles around it that are thought to be the beginnin ...
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.