Stargazing Rules 01162013
... 4. All stars, except “circumpolar” stars, rise in the east and set in the west. 5. Some stars never rise or set, but are visible every night of the year, all night long. This is due to their proximity to Polaris, the North Star. These are called "circumpolar stars." (Example, the Little Dipper.) Cir ...
... 4. All stars, except “circumpolar” stars, rise in the east and set in the west. 5. Some stars never rise or set, but are visible every night of the year, all night long. This is due to their proximity to Polaris, the North Star. These are called "circumpolar stars." (Example, the Little Dipper.) Cir ...
Can We Make A Star?
... • We might need to make a star so that in the future life may continue to progress on Earth • Just in case our Sun immediately burns out • And just so we could be cool like Star Wars ...
... • We might need to make a star so that in the future life may continue to progress on Earth • Just in case our Sun immediately burns out • And just so we could be cool like Star Wars ...
H-R diagram worksheet
... Mark each of the following on the H-R diagram and label it as indicated. You may use page 15 of your ESRT to help you. 6. Draw and label a long diagonal line showing the approximate location of the main sequence. 7. A large circle indicating the area where you find the biggest diameter stars, labele ...
... Mark each of the following on the H-R diagram and label it as indicated. You may use page 15 of your ESRT to help you. 6. Draw and label a long diagonal line showing the approximate location of the main sequence. 7. A large circle indicating the area where you find the biggest diameter stars, labele ...
Stars and Galaxies part 3
... Stellar Parallax • Because the parallax angle gets increasingly small the further away the star is, parallax can only be used to calculate the distance to stars closer than 400 light-years away, and is most accurate for close stars. • FYI: Hipparcos was a satellite that operated between 1989 and 19 ...
... Stellar Parallax • Because the parallax angle gets increasingly small the further away the star is, parallax can only be used to calculate the distance to stars closer than 400 light-years away, and is most accurate for close stars. • FYI: Hipparcos was a satellite that operated between 1989 and 19 ...
Why Star Positions?
... These subdivisions into sixty are the same as those used to carve up and so describe the passage of time. We still happily cling to our day divided into hours, minutes, and seconds, the only common measure to have firmly resisted metrication. These byzantine subdivisions are, to be sure, terribly cu ...
... These subdivisions into sixty are the same as those used to carve up and so describe the passage of time. We still happily cling to our day divided into hours, minutes, and seconds, the only common measure to have firmly resisted metrication. These byzantine subdivisions are, to be sure, terribly cu ...
FLIGHT International, 7 March 1963 347 satellite camera are stored
... photographic plate. This brings the image into a flat field, instead of the spherical field normally associated with a Schmidt System, and thereby simplifies the measurement of the plate. The optical system has a field of 10° and is achromatized between wave-lengths 4,800 and 6,000A. This band was c ...
... photographic plate. This brings the image into a flat field, instead of the spherical field normally associated with a Schmidt System, and thereby simplifies the measurement of the plate. The optical system has a field of 10° and is achromatized between wave-lengths 4,800 and 6,000A. This band was c ...
Measuring Stars
... So they are like standard candles, wherever they occur, they have the same intrinsic luminosity. If we see a type Ia supernova somewhere (in another galaxy), by comparing its observed brightness to intrinsic brightness we can estimate the distance to it using the inverse square law. (The inverse squ ...
... So they are like standard candles, wherever they occur, they have the same intrinsic luminosity. If we see a type Ia supernova somewhere (in another galaxy), by comparing its observed brightness to intrinsic brightness we can estimate the distance to it using the inverse square law. (The inverse squ ...
Barium Stars Observed with the Coude Echelle Spectrometer
... Nevertheless, the CES/reticon system is very efficient and versatile, and it makes much fun to work with it. High-quality spectra call for adequate analytical techniques. Most of the earlier analyses of Ba stars employed curveof-grawth methods. Furthermore, most oscillator strengths available at tha ...
... Nevertheless, the CES/reticon system is very efficient and versatile, and it makes much fun to work with it. High-quality spectra call for adequate analytical techniques. Most of the earlier analyses of Ba stars employed curveof-grawth methods. Furthermore, most oscillator strengths available at tha ...
SR Stellar Properties
... H-R Diagram Scientists began to learn about stars by observing properties of stars, including brightness and color. Astronomers tried to make sense of the star data by grouping together stars with similar properties. The Hertzsprung-Russell diagram provides a way to group similar stars. The H-R diag ...
... H-R Diagram Scientists began to learn about stars by observing properties of stars, including brightness and color. Astronomers tried to make sense of the star data by grouping together stars with similar properties. The Hertzsprung-Russell diagram provides a way to group similar stars. The H-R diag ...
10.1 The Solar Neighborhood Barnard`s Star
... -Most stars are in binary pairs -determine mass by measuring orbital motion -visual binaries observed directly -spectroscopic binaries measured by doppler effect -eclipsing binaries can be measured using intensity variations ...
... -Most stars are in binary pairs -determine mass by measuring orbital motion -visual binaries observed directly -spectroscopic binaries measured by doppler effect -eclipsing binaries can be measured using intensity variations ...
Measuring Stars
... •Stars fall into categories: •The Main Sequence contains about 90% of the bright stars •The Giants are rare but very ...
... •Stars fall into categories: •The Main Sequence contains about 90% of the bright stars •The Giants are rare but very ...
Winter - Dark Sky Discovery
... a V-shape of stars – Taurus’ head – and then a small group of faint stars – the Seven Sisters, or Pleaides cluster. If it’s really dark and clear, look for Orions nebula, a faint smudge on his sword, where new stars are being formed before your eyes! Follow the line of the belt left, and you come to ...
... a V-shape of stars – Taurus’ head – and then a small group of faint stars – the Seven Sisters, or Pleaides cluster. If it’s really dark and clear, look for Orions nebula, a faint smudge on his sword, where new stars are being formed before your eyes! Follow the line of the belt left, and you come to ...
STAR SYTEMS AND GALAXIES
... • Our sun is a single star but most stars are members of groups of two or more, called star systems. • Two star systems are called binary. Three star systems are called triple. • Proxima Centauri is probably a triple. Alpha Centauri A and Alpha Centauri B are part of a binary sytem. • In a binary s ...
... • Our sun is a single star but most stars are members of groups of two or more, called star systems. • Two star systems are called binary. Three star systems are called triple. • Proxima Centauri is probably a triple. Alpha Centauri A and Alpha Centauri B are part of a binary sytem. • In a binary s ...
Intro to Astronomy
... Typically, spacecraft will use the gravity of the Earth or other planets to send them farther out into space. The method is called “gravity assist” or “sling-shot”. Otherwise, spacecraft would have to be much larger to carry enough fuel and more powerful engines to get anywhere. Sling-shotting throu ...
... Typically, spacecraft will use the gravity of the Earth or other planets to send them farther out into space. The method is called “gravity assist” or “sling-shot”. Otherwise, spacecraft would have to be much larger to carry enough fuel and more powerful engines to get anywhere. Sling-shotting throu ...
Our Star - the Sun
... periodically eclipses the other • Detailed information about the stars in an eclipsing binary can be obtained from a study of the binary’s radial velocity curve and its light curve ...
... periodically eclipses the other • Detailed information about the stars in an eclipsing binary can be obtained from a study of the binary’s radial velocity curve and its light curve ...
HR Diagram
... 7. Astronomers can determine the __________________ ________________ of a star by observing the star with a spectrograph. 8. If Rigel and Betelgeuse were the same size, explain why Rigel would appear brighter. ...
... 7. Astronomers can determine the __________________ ________________ of a star by observing the star with a spectrograph. 8. If Rigel and Betelgeuse were the same size, explain why Rigel would appear brighter. ...
How Is a Star`s Color Related to Its Temperature?
... On a clear night you have surely noticed that some stars are brighter than others. But stars also have different colors. Rigel is blue, and Betelgeuse is red. Capella and our sun are yellow. In this activity you will make your own HertzsprungRussell diagram. You will see how star brightness, color, ...
... On a clear night you have surely noticed that some stars are brighter than others. But stars also have different colors. Rigel is blue, and Betelgeuse is red. Capella and our sun are yellow. In this activity you will make your own HertzsprungRussell diagram. You will see how star brightness, color, ...
Extension worksheet – Topic 6 - Cambridge Resources for the IB
... The average apparent magnitude of a Cepheid star is m 5.8 and the period of variation of its luminosity is 12 days. Using the relation M 2.83log10 T 1.81 between period T (in days) and average absolute magnitude M calculate the distance to this star. ...
... The average apparent magnitude of a Cepheid star is m 5.8 and the period of variation of its luminosity is 12 days. Using the relation M 2.83log10 T 1.81 between period T (in days) and average absolute magnitude M calculate the distance to this star. ...
Hipparcos
Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993. It was the first space experiment devoted to precision astrometry, the accurate measurement of the positions of celestial objects on the sky. This permitted the accurate determination of proper motions and parallaxes of stars, allowing a determination of their distance and tangential velocity. When combined with radial-velocity measurements from spectroscopy, this pinpointed all six quantities needed to determine the motion of stars. The resulting Hipparcos Catalogue, a high-precision catalogue of more than 118,200 stars, was published in 1997. The lower-precision Tycho Catalogue of more than a million stars was published at the same time, while the enhanced Tycho-2 Catalogue of 2.5 million stars was published in 2000. Hipparcos ' follow-up mission, Gaia, was launched in 2013.The word ""Hipparcos"" is an acronym for High precision parallax collecting satellite and also a reference to the ancient Greek astronomer Hipparchus of Nicaea, who is noted for applications of trigonometry to astronomy and his discovery of the precession of the equinoxes.