Review Packet
... _____ Heat and pressure build in the core of the protostar until nuclear fusion takes place. _____ The force of gravity pulls a nebula together forming clumps called protostars. _____ Hydrogen atoms are fused together generating an enormous amount of energy igniting the star causing it to shine. ...
... _____ Heat and pressure build in the core of the protostar until nuclear fusion takes place. _____ The force of gravity pulls a nebula together forming clumps called protostars. _____ Hydrogen atoms are fused together generating an enormous amount of energy igniting the star causing it to shine. ...
the May 2017 Newsletter!
... For a change Michael Poll started the meeting off with What’s Up for the month of May and thereafter went straight into his topic for the monthly Beginners Corner. This was a discussion of the crater Copernicus. Crater morphology is divided into simplex or complex craters. The crater at Tswaing near ...
... For a change Michael Poll started the meeting off with What’s Up for the month of May and thereafter went straight into his topic for the monthly Beginners Corner. This was a discussion of the crater Copernicus. Crater morphology is divided into simplex or complex craters. The crater at Tswaing near ...
Stars, Galaxies & Universe
... Classifying Stars • Stars are classified by size, temperature, and brightness. • Temperature of a star is indicated by color, hot stars are blue & cooler stars are red. • Apparent brightness is the brightness of a star as observed from earth. • Absolute magnitude is the brightness of a star observe ...
... Classifying Stars • Stars are classified by size, temperature, and brightness. • Temperature of a star is indicated by color, hot stars are blue & cooler stars are red. • Apparent brightness is the brightness of a star as observed from earth. • Absolute magnitude is the brightness of a star observe ...
Death of Stars
... and the CNO cycle both involve fusion of four Hydrogen nuclei to form a He nucleus and conversion of mass to energy The energy appears as K.E of the particles formed, high energy gamma rays and neutrinos The temperature of the star’s core determines which process will dominate The P-P process domina ...
... and the CNO cycle both involve fusion of four Hydrogen nuclei to form a He nucleus and conversion of mass to energy The energy appears as K.E of the particles formed, high energy gamma rays and neutrinos The temperature of the star’s core determines which process will dominate The P-P process domina ...
Chapter19
... yet had time to reach the main sequence. Cluster 1 is older because its K stars have had time to reach the main sequence. They have hydrogen fusion taking place in their cores. The most massive main sequence stars are about 20 times as hot, 600 times as massive, 150 times as large, and a billion tim ...
... yet had time to reach the main sequence. Cluster 1 is older because its K stars have had time to reach the main sequence. They have hydrogen fusion taking place in their cores. The most massive main sequence stars are about 20 times as hot, 600 times as massive, 150 times as large, and a billion tim ...
Deep Space Mystery Note Form 2
... A supernova can also be created when a white dwarf star has drawn enough material from a companion star to raise its core temperature enough to ignite carbon fusion. The violent explosion of a massive star makes the expanding gases to glow briefly and brightly. During this short interval, a superno ...
... A supernova can also be created when a white dwarf star has drawn enough material from a companion star to raise its core temperature enough to ignite carbon fusion. The violent explosion of a massive star makes the expanding gases to glow briefly and brightly. During this short interval, a superno ...
Galileo Galilei From The Starry Messenger (1610) and The Assayer
... to the unaided vision, adding countless more which have never before been seen, exposing these plainly to the eye in numbers ten times exceeding the old and familiar stars. It is a very beautiful thing, and most gratifying to the sight, to behold the body of the moon, distant from us almost sixty ea ...
... to the unaided vision, adding countless more which have never before been seen, exposing these plainly to the eye in numbers ten times exceeding the old and familiar stars. It is a very beautiful thing, and most gratifying to the sight, to behold the body of the moon, distant from us almost sixty ea ...
LAB: Star Classification
... break them up into their different parts just like you can use a prism to break sunlight into all the colors of a rainbow. The rainbow that we see is actually the spectrum produced by the Sun, and it’s different for different stars depending on their temperature. A cooler star will have a spectrum t ...
... break them up into their different parts just like you can use a prism to break sunlight into all the colors of a rainbow. The rainbow that we see is actually the spectrum produced by the Sun, and it’s different for different stars depending on their temperature. A cooler star will have a spectrum t ...
Star Constellations
... some stars are smaller than our Sun, and some are larger. Except for our own Sun, all stars are so far away that they only look like single points—even through a telescope. Constellations ...
... some stars are smaller than our Sun, and some are larger. Except for our own Sun, all stars are so far away that they only look like single points—even through a telescope. Constellations ...
Universe 19
... LUMINOSITY is POWER, or Energy/time, measured in joules per second The Stefan-Boltzman constant, s = 5.67 X 10-8 W m-2 K-4 ...
... LUMINOSITY is POWER, or Energy/time, measured in joules per second The Stefan-Boltzman constant, s = 5.67 X 10-8 W m-2 K-4 ...
Distances farther out
... If binary eclipses , from light curve get angle of inclination and hence accurate masses. Eg of eclipsing binary K stars: 1) ζ Aurigae (faintest of the ‘kids’ of Cappella): magnitude = 3.8. Every 972 days B8 5 component blocked by K4 II giant and intensity decreases by 0.2 mag. Period of eclipse = 2 ...
... If binary eclipses , from light curve get angle of inclination and hence accurate masses. Eg of eclipsing binary K stars: 1) ζ Aurigae (faintest of the ‘kids’ of Cappella): magnitude = 3.8. Every 972 days B8 5 component blocked by K4 II giant and intensity decreases by 0.2 mag. Period of eclipse = 2 ...
Stellar Magnitudes and Distances
... • Take the difference in magnitudes between two stars. • Raise 2.512 to that power. • Example: How many times brighter is Polaris (a 2nd magnitude star) than a barely-visible 6th magnitude star? • 6 - 2 = 4. So 2.5124 = 39.8 times. Polaris is almost 40 times brighter than the faintest visible star! ...
... • Take the difference in magnitudes between two stars. • Raise 2.512 to that power. • Example: How many times brighter is Polaris (a 2nd magnitude star) than a barely-visible 6th magnitude star? • 6 - 2 = 4. So 2.5124 = 39.8 times. Polaris is almost 40 times brighter than the faintest visible star! ...
REACH FOR THE STARS MLK 2009
... How many AU does light travel in one year? _____________ What are Hayashi tracks? ______________________________________________________________ What causes a sun like star to suddenly contract in diameter? ___________________________________ How many times will a blue giant orbit the center of the ...
... How many AU does light travel in one year? _____________ What are Hayashi tracks? ______________________________________________________________ What causes a sun like star to suddenly contract in diameter? ___________________________________ How many times will a blue giant orbit the center of the ...
Cassiopeia (constellation)
Cassiopeia is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivalled beauty. Cassiopeia was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy, and it remains one of the 88 modern constellations today. It is easily recognizable due to its distinctive 'M' shape when in upper culmination but in higher northern locations when near lower culminations in spring and summer it has a 'W' shape, formed by five bright stars. It is bordered by Andromeda to the south, Perseus to the southeast, and Cepheus to the north. It is opposite the Big Dipper.In northern locations above 34ºN latitude it is visible year-round and in the (sub)tropics it can be seen at its clearest from September to early November in its characteristic 'M' shape. Even in low southern latitudes below 25ºS is can be seen low in the North.