A-level Physics (Specification A) Teacher guide Teacher guide
... Chapter 2 develops the ideas of chapter 1 by studying how information from some of the other parts of the electromagnetic spectrum can be gathered. Comparisons are made between the devices in terms of their design and application. Having seen how the information is obtained, in chapter 3 students ha ...
... Chapter 2 develops the ideas of chapter 1 by studying how information from some of the other parts of the electromagnetic spectrum can be gathered. Comparisons are made between the devices in terms of their design and application. Having seen how the information is obtained, in chapter 3 students ha ...
File
... This unusual long arm shows lots of young blue star clusters. But NGC 772 also possesses many weak, tightly coiled arms which, although well formed, are relatively smooth, indicating only a small current rate of star formation. The relatively smooth multiple arms on the opposite side from the promin ...
... This unusual long arm shows lots of young blue star clusters. But NGC 772 also possesses many weak, tightly coiled arms which, although well formed, are relatively smooth, indicating only a small current rate of star formation. The relatively smooth multiple arms on the opposite side from the promin ...
HR Diagram Explorer
... An actual HR Diagram is provided in the upper right panel with an active location indicated by a red x. This active location can be dragged around the diagram. The options panel allows you control the variables plotted on the x-axis: (temperature, B-V, or spectral type) and those plotted on the y-ax ...
... An actual HR Diagram is provided in the upper right panel with an active location indicated by a red x. This active location can be dragged around the diagram. The options panel allows you control the variables plotted on the x-axis: (temperature, B-V, or spectral type) and those plotted on the y-ax ...
Post main sequence evolution
... -All stars in the cluster have the same age (were born at the same time) -Massive stars run out of fuel (leave the main sequence) sooner than less massive stars. The position of the “turn off point” is what tells us the age of a cluster. This is due to the fact that mass is related to the lifetime o ...
... -All stars in the cluster have the same age (were born at the same time) -Massive stars run out of fuel (leave the main sequence) sooner than less massive stars. The position of the “turn off point” is what tells us the age of a cluster. This is due to the fact that mass is related to the lifetime o ...
November News Letter - Boise Astronomical Society
... stars located in the middle of the rectangle of Orion’s body; this is Orion’s Belt. If you have a pair of binoculars handy, then scan downward from the middle star in Orion’s Belt. These stars represent his sword and the second star in the sword should look a little fuzzy. That fuzzy spot is located ...
... stars located in the middle of the rectangle of Orion’s body; this is Orion’s Belt. If you have a pair of binoculars handy, then scan downward from the middle star in Orion’s Belt. These stars represent his sword and the second star in the sword should look a little fuzzy. That fuzzy spot is located ...
High-Speed Ballistic Stellar Interlopers
... can pick up enough energy through gravitational interaction with the others to be thrown from the system. Determining how many stars have been ejected from their neighbors is important to conducting an accurate census of the various types of stars born in an interstellar cloud. Scientists try to und ...
... can pick up enough energy through gravitational interaction with the others to be thrown from the system. Determining how many stars have been ejected from their neighbors is important to conducting an accurate census of the various types of stars born in an interstellar cloud. Scientists try to und ...
FROM MOLECULAR CLOUDS TO STARS 1 Star formation and the
... density enhancements in relatively small, cold regions called ”Dense Cores”. Stars form inside these cores and the mass of the dense cores settles the upper limit of the star masses. The masses of the Dense Cores have a lower limit given by the Jeans Mass (see § 3), that depends on the temperature o ...
... density enhancements in relatively small, cold regions called ”Dense Cores”. Stars form inside these cores and the mass of the dense cores settles the upper limit of the star masses. The masses of the Dense Cores have a lower limit given by the Jeans Mass (see § 3), that depends on the temperature o ...
a MS Word version.
... 6. How are the colors of stars related to their surface temperatures? What is the color index of a star and how does it measure the color (and therefore the temperature) of a star? Who developed the spectral classification system for stars? What are the spectral classes of stars and how are they re ...
... 6. How are the colors of stars related to their surface temperatures? What is the color index of a star and how does it measure the color (and therefore the temperature) of a star? Who developed the spectral classification system for stars? What are the spectral classes of stars and how are they re ...
Name:
... temperature. Note, too, that the luminosity is in terms of solar luminosities (Lo). That is, if a star has a luminosity of 10Lo, it will be ten times brighter than our sun. The temperature is given in Kelvins (K), a temperature scale very similar to the Celsius scale with a different zero point. Kel ...
... temperature. Note, too, that the luminosity is in terms of solar luminosities (Lo). That is, if a star has a luminosity of 10Lo, it will be ten times brighter than our sun. The temperature is given in Kelvins (K), a temperature scale very similar to the Celsius scale with a different zero point. Kel ...
Encyclopedia of Optical Engineering Stellar Evolution
... response, the outer layers initially expanded to increase the potential energy, and later they continued to expand due to the increase in energy generation by the hydrogenburning shell. As the outer layers expand to 10 – 20 R , convective currents increase in the outer layers and the surface temper ...
... response, the outer layers initially expanded to increase the potential energy, and later they continued to expand due to the increase in energy generation by the hydrogenburning shell. As the outer layers expand to 10 – 20 R , convective currents increase in the outer layers and the surface temper ...
Advanced STARS - WordPress.com
... Saturn is the 6th planet from the sun and the most distant which can be seen with the naked eye It is the 2nd largest planet It is a gas giant composed of gases similar to hydrogen, helium, methane, among others It quickly rotates every 10 hours and 34 minutes Similar to Jupiter it’s upper atmospher ...
... Saturn is the 6th planet from the sun and the most distant which can be seen with the naked eye It is the 2nd largest planet It is a gas giant composed of gases similar to hydrogen, helium, methane, among others It quickly rotates every 10 hours and 34 minutes Similar to Jupiter it’s upper atmospher ...
Calculating Radial Velocities of Low Mass Eclipsing Binaries
... Measuring Radial Velocities of Low Mass Eclipsing Binaries Rebecca Rattray, Leslie Hebb, Keivan G. Stassun College of Arts and Science, Vanderbilt University Due to the complex nature of the spectra of low-mass M type stars, it is difficult to determine their metallicities and temperatures directly. ...
... Measuring Radial Velocities of Low Mass Eclipsing Binaries Rebecca Rattray, Leslie Hebb, Keivan G. Stassun College of Arts and Science, Vanderbilt University Due to the complex nature of the spectra of low-mass M type stars, it is difficult to determine their metallicities and temperatures directly. ...
educator guide - Michigan Science Center
... The Sun is humanity’s star. It is classified as a G2V star (see stellar classification) along the main sequence. The Sun was once considered to be a fairly dim star compared to most other stars in the universe. Recent discoveries have shown, however, that there are many more red dwarf stars than exp ...
... The Sun is humanity’s star. It is classified as a G2V star (see stellar classification) along the main sequence. The Sun was once considered to be a fairly dim star compared to most other stars in the universe. Recent discoveries have shown, however, that there are many more red dwarf stars than exp ...
A rocky planet transiting a nearby low-mass star
... CAUP, Rua das Estrelas, 4150-762 Porto, Portugal. ...
... CAUP, Rua das Estrelas, 4150-762 Porto, Portugal. ...
Agenda - Relativity Group
... What have we learned? • State several ways in which high-mass stars differ from low-mass stars. • High-mass stars live much shorter lives than low-mass stars. High-mass stars have convective cores but no other convective layers, while low-mass stars have convection layers that can extend from their ...
... What have we learned? • State several ways in which high-mass stars differ from low-mass stars. • High-mass stars live much shorter lives than low-mass stars. High-mass stars have convective cores but no other convective layers, while low-mass stars have convection layers that can extend from their ...
Astronomical units
... m1 = -2.5log F1 + constant m2 = -2.5log(0.01F1) + constant = -2.5log(0.01) - 2.5log F1 + constant = 5 - 2.5log F1 + constant = 5 + m1 Source that is 100 times fainter in flux is five magnitudes fainter (larger number). ...
... m1 = -2.5log F1 + constant m2 = -2.5log(0.01F1) + constant = -2.5log(0.01) - 2.5log F1 + constant = 5 - 2.5log F1 + constant = 5 + m1 Source that is 100 times fainter in flux is five magnitudes fainter (larger number). ...
AAVSO: Mu Cephei, October 2002 Variable Star Of The Month
... particular stress on the new appearance of the above stars; they are, however, such as do well deserve to have their places settled, while I shall leave it to others to determine how far they may think them to be new visitors to those starry regions that fall within the reach of our sight. Herschel ...
... particular stress on the new appearance of the above stars; they are, however, such as do well deserve to have their places settled, while I shall leave it to others to determine how far they may think them to be new visitors to those starry regions that fall within the reach of our sight. Herschel ...
TOOLS IN ASTRONOMY SPECTROSCOPY
... 1. Know that starlight is often broken up into component wavelengths with diffraction gratings to produce stellar spectra. 2. Understand how stellar spectra are classified as A, B, C, D, E and so on, based on prominent characteristics. 3. Understand how stellar spectra are related to composition and ...
... 1. Know that starlight is often broken up into component wavelengths with diffraction gratings to produce stellar spectra. 2. Understand how stellar spectra are classified as A, B, C, D, E and so on, based on prominent characteristics. 3. Understand how stellar spectra are related to composition and ...
Boötes
Boötes /boʊˈoʊtiːz/ is a constellation in the northern sky, located between 0° and +60° declination, and 13 and 16 hours of right ascension on the celestial sphere. The name comes from the Greek Βοώτης, Boōtēs, meaning herdsman or plowman (literally, ox-driver; from βοῦς bous “cow”). The ""ö"" in the name is a diaeresis, not an umlaut, meaning that each 'o' is to be pronounced separately.One of the 48 constellations described by the 2nd century astronomer Ptolemy, Boötes is now one of the 88 modern constellations. It contains the fourth brightest star in the night sky, the orange-hued Arcturus. Boötes is home to many other bright stars, including eight above the fourth magnitude and an additional 21 above the fifth magnitude, making a total of 29 stars easily visible to the naked eye.