The colour-magnitude diagram
... Spectral types and colours Different effective temperatures correspond to: • different spectral types • different colours ...
... Spectral types and colours Different effective temperatures correspond to: • different spectral types • different colours ...
Name
... Locate Mercury and try it. Was it any different from your prediction? ______________________ How often does Mercury do this? __________________ Is it different from Saturn? Display the zodiacal constellations. The reason for this loopy behavior is more apparent if you show the sun as well as Mercury ...
... Locate Mercury and try it. Was it any different from your prediction? ______________________ How often does Mercury do this? __________________ Is it different from Saturn? Display the zodiacal constellations. The reason for this loopy behavior is more apparent if you show the sun as well as Mercury ...
3Nov_2014
... • The Stefan-Boltzmann Law links a star’s temperature to the amount of light the star emits – Hotter stars emit more! – Larger stars emit more! ...
... • The Stefan-Boltzmann Law links a star’s temperature to the amount of light the star emits – Hotter stars emit more! – Larger stars emit more! ...
Integrative Studies 410 Our Place in the Universe
... respect to the plane of its orbit around the sun • This means the path of the sun among the stars (called ecliptic) is a circle tilted 23½° wrt the celestial equator Rotation axis pointing to NCP, not SCP Path around sun ...
... respect to the plane of its orbit around the sun • This means the path of the sun among the stars (called ecliptic) is a circle tilted 23½° wrt the celestial equator Rotation axis pointing to NCP, not SCP Path around sun ...
The 22 First Magnitude Stars
... • Find the Great Square of Pegasus • Northeast corner is Alpha Andromedae • Count two stars along each “string” of Andromeda • Follow “pointers” north the same distance, and there you are ...
... • Find the Great Square of Pegasus • Northeast corner is Alpha Andromedae • Count two stars along each “string” of Andromeda • Follow “pointers” north the same distance, and there you are ...
Earths Place in the Universe
... Stars expand as they grow old. As the core runs out of hydrogen and then helium, the core contacts and the outer layers expand, cool, and become less bright. It will eventually collapse and explode. Its fate is determined by the original mass of the star; it will become either a black dwarf ...
... Stars expand as they grow old. As the core runs out of hydrogen and then helium, the core contacts and the outer layers expand, cool, and become less bright. It will eventually collapse and explode. Its fate is determined by the original mass of the star; it will become either a black dwarf ...
Slide 1 - Personal.psu.edu
... Summary of Chapter 19 (cont.) • The protostar continues to collapse; when the core is dense and hot enough, fusion begins • The star continues to collapse until the inward force of gravity is balanced by the outward pressure from the core. The star is now on the Main Sequence • More massive stars f ...
... Summary of Chapter 19 (cont.) • The protostar continues to collapse; when the core is dense and hot enough, fusion begins • The star continues to collapse until the inward force of gravity is balanced by the outward pressure from the core. The star is now on the Main Sequence • More massive stars f ...
The life of Stars
... Mira Stars • Mira (=wonderful, lat.) [o Ceti]: sometimes visible with bare eye, sometimes faint • Long period variable star: 332 days period • Cool red giants • Sometimes periodic, sometimes irregular • some eject gas into space ...
... Mira Stars • Mira (=wonderful, lat.) [o Ceti]: sometimes visible with bare eye, sometimes faint • Long period variable star: 332 days period • Cool red giants • Sometimes periodic, sometimes irregular • some eject gas into space ...
Final review - Physics and Astronomy
... Denoted by lower-case letters, e.g., mV or mB • Absolute magnitude = apparent magnitude the star would have if placed at a standard distance (10 pc) from the Earth = dependent on luminosity only ...
... Denoted by lower-case letters, e.g., mV or mB • Absolute magnitude = apparent magnitude the star would have if placed at a standard distance (10 pc) from the Earth = dependent on luminosity only ...
Laboratory Procedure (Word Format)
... Mentally, draw a line connecting the two stars Merak and Dubhe and extend this line approximately 5 lengths (25o), and it will reach Polaris. Polaris, the pole star, is the end star in the tail of Ursa Minor or the end of the handle of the Little Dipper. On a sheet of paper record the orientation of ...
... Mentally, draw a line connecting the two stars Merak and Dubhe and extend this line approximately 5 lengths (25o), and it will reach Polaris. Polaris, the pole star, is the end star in the tail of Ursa Minor or the end of the handle of the Little Dipper. On a sheet of paper record the orientation of ...
Lecture 17 Review
... The question is, what if the mass is greater than about 50 solar masses? If the forming star is too large, the gas cloud condenses quite fast, is unstable, gets very hot, and either explodes or fragments into smaller clouds which form individual stars. A second question is, can the mass of the gas ...
... The question is, what if the mass is greater than about 50 solar masses? If the forming star is too large, the gas cloud condenses quite fast, is unstable, gets very hot, and either explodes or fragments into smaller clouds which form individual stars. A second question is, can the mass of the gas ...
13 - Joe Griffin Media Ministries
... teaches that the starry story begins with Virgo (virgin birth) and ends with Leo (Second Advent) and in between is the angelic conflict being resolved by fulfillment of the Lord’s prophecy in Genesis 3:15. It is quite possible that the stars (including planets, moon, and sun) continue to transmit “s ...
... teaches that the starry story begins with Virgo (virgin birth) and ends with Leo (Second Advent) and in between is the angelic conflict being resolved by fulfillment of the Lord’s prophecy in Genesis 3:15. It is quite possible that the stars (including planets, moon, and sun) continue to transmit “s ...
Homework 1 - Course Pages of Physics Department
... using energy conservation. Denote the total energy (kinetic + potential) of a galaxy per unit mass by κ. Show that K ≡ −2κ/r(t0 )2 has the same value for each galaxy, regardless of the value of r(t0 ). Relate H(t) to ρ(t0 ), K, and a(t). Whether the expansion continues forever, or stops and turns in ...
... using energy conservation. Denote the total energy (kinetic + potential) of a galaxy per unit mass by κ. Show that K ≡ −2κ/r(t0 )2 has the same value for each galaxy, regardless of the value of r(t0 ). Relate H(t) to ρ(t0 ), K, and a(t). Whether the expansion continues forever, or stops and turns in ...
Exam 03
... B) decreases linearly with a star's apparent brightness: a magnitude 1 star appears twice as bright as a magnitude 2 star. C) increases exponentially with a star’s apparent brightness: a magnitude 2 star appears 10 times as bright as a magnitude 1 star. D) decreases logarithmically as a star’s appar ...
... B) decreases linearly with a star's apparent brightness: a magnitude 1 star appears twice as bright as a magnitude 2 star. C) increases exponentially with a star’s apparent brightness: a magnitude 2 star appears 10 times as bright as a magnitude 1 star. D) decreases logarithmically as a star’s appar ...
answers2006_07_BC
... been created in a dense environment at one particular time in the past (good for Big Bang, bad for Steady State) near-uniformity over the whole sky this is surprising because different “sides” of the sky should never have exchanged photons, and therefore do not know each other’s temperature – it is ...
... been created in a dense environment at one particular time in the past (good for Big Bang, bad for Steady State) near-uniformity over the whole sky this is surprising because different “sides” of the sky should never have exchanged photons, and therefore do not know each other’s temperature – it is ...
Document
... • C is incorrect because Barnard’s Star has the biggest apparent magnitude in the chart, so it is the dimmest object listed. • D is incorrect because Alpha Centauri has a bigger apparent magnitude than the full moon and Venus, so it is dimmer. ...
... • C is incorrect because Barnard’s Star has the biggest apparent magnitude in the chart, so it is the dimmest object listed. • D is incorrect because Alpha Centauri has a bigger apparent magnitude than the full moon and Venus, so it is dimmer. ...
Lives of stars HR
... of a pulsar, a rapidly rotating stellar remnant which can appear to blink hundreds or thousands of times per second. The most famous pulsar is in the Crab nebula ...
... of a pulsar, a rapidly rotating stellar remnant which can appear to blink hundreds or thousands of times per second. The most famous pulsar is in the Crab nebula ...
Are Cool Stars Popular? Better Ask Sol
... Understanding how this activity affects planets in our solar system is important for determining if far away planet systems could support life. Yet, 70% of the observable universe is made up of red stars that are too dim to see with the naked eye, because they have cooler surfaces and are less than ...
... Understanding how this activity affects planets in our solar system is important for determining if far away planet systems could support life. Yet, 70% of the observable universe is made up of red stars that are too dim to see with the naked eye, because they have cooler surfaces and are less than ...
Life Cycle of a Star - Intervention Worksheet
... _____ Stars start out as diffused clouds of gas and dust drifting through space. A single one of these clouds is called a nebula _____ What happens next depends on the mass of the star. _____ Heat and pressure build in the core of the protostar until nuclear fusion takes place. _____ The force of gr ...
... _____ Stars start out as diffused clouds of gas and dust drifting through space. A single one of these clouds is called a nebula _____ What happens next depends on the mass of the star. _____ Heat and pressure build in the core of the protostar until nuclear fusion takes place. _____ The force of gr ...
Set 1
... 2. The declination of a star is 42 57’ N and its proper motion components are: = -0.”0374, = 1”.21. Calculate its total proper motion. If the spectrum reveals a blueshift of 7.6 km s-1 and the parallax is 0.”376, calculate its space velocity relative to the Sun and its total proper motion at t ...
... 2. The declination of a star is 42 57’ N and its proper motion components are: = -0.”0374, = 1”.21. Calculate its total proper motion. If the spectrum reveals a blueshift of 7.6 km s-1 and the parallax is 0.”376, calculate its space velocity relative to the Sun and its total proper motion at t ...
Astronomy and Space Science
... Taking log and rearranging, we have M = MSun + 2.5 log10(LSun/L). For the Sun, the absolute magnitude is 4.8 and luminosity is 3.83×1026W. We have M = 71.3 - 2.5 log10(L), where L is in W. More: Using this and earlier formulae, we can see how the physical quantities m, d, M, L, R, T are related. Bot ...
... Taking log and rearranging, we have M = MSun + 2.5 log10(LSun/L). For the Sun, the absolute magnitude is 4.8 and luminosity is 3.83×1026W. We have M = 71.3 - 2.5 log10(L), where L is in W. More: Using this and earlier formulae, we can see how the physical quantities m, d, M, L, R, T are related. Bot ...
Our Solar System
... 1. Universe- contains everything that may or may not exist in space 2. Galaxy- system of stars held together by gravity. 3 types: Spiral, Elliptical, and Irregular. Ex: Milky Way 3. Nebula= interstellar cloud of gas 4. Star- self luminous sphere of gas. Ex: sun 5. Planet- celestial object moving in ...
... 1. Universe- contains everything that may or may not exist in space 2. Galaxy- system of stars held together by gravity. 3 types: Spiral, Elliptical, and Irregular. Ex: Milky Way 3. Nebula= interstellar cloud of gas 4. Star- self luminous sphere of gas. Ex: sun 5. Planet- celestial object moving in ...
The Properties of Stars
... sequence and then moves off the sequence when it runs out of fuel. • How long it stays on the main sequence and where it moves to depends on size. ...
... sequence and then moves off the sequence when it runs out of fuel. • How long it stays on the main sequence and where it moves to depends on size. ...
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.