The Characteristics of Stars
... away. You may have noticed that luminous objects, such as flashlights and headlights, appear much brighter when they are closer to you than when they are farther away. This is because when the light source is farther away, the light spreads out over a larger area and becomes more diffuse. When the l ...
... away. You may have noticed that luminous objects, such as flashlights and headlights, appear much brighter when they are closer to you than when they are farther away. This is because when the light source is farther away, the light spreads out over a larger area and becomes more diffuse. When the l ...
The Hertzsprung-Russell Diagram
... Our sun is a main sequence star, as are many stars close to our solar system in our galaxy. Other stars, however, have characteristics that place them in other groups on the chart. Stars that are cool but very luminous must be very large. These we call red giants or super giants. Finally, there are ...
... Our sun is a main sequence star, as are many stars close to our solar system in our galaxy. Other stars, however, have characteristics that place them in other groups on the chart. Stars that are cool but very luminous must be very large. These we call red giants or super giants. Finally, there are ...
RS Oph
... RS Oph is the second brightest member of a rare class of cataclysmic variable star known as recurrent novae (Nr). These stars are novae where more than one outburst has been observed and appear to be intermediate in class between the classical novae (single major outburst) and dwarf novae (frequent ...
... RS Oph is the second brightest member of a rare class of cataclysmic variable star known as recurrent novae (Nr). These stars are novae where more than one outburst has been observed and appear to be intermediate in class between the classical novae (single major outburst) and dwarf novae (frequent ...
Sammy Nagel · Annie Jump Cannon
... Select one contribution and explain why this contribution was important. She discovered a system for describing how hot stars are. She used a mnemonic device to remember the letters. the letters were O B A F G K M. The mnemonic was "Oh, be a fine girlkiss me" The O is the hottest star. The M is the ...
... Select one contribution and explain why this contribution was important. She discovered a system for describing how hot stars are. She used a mnemonic device to remember the letters. the letters were O B A F G K M. The mnemonic was "Oh, be a fine girlkiss me" The O is the hottest star. The M is the ...
Astrophysics
... Black Hole: With very massive stars, the inner core collapses but continues to do so until it becomes nothing more than a point mass. Point mass singularity, and this breaks the laws of Physics. The strength of gravity inside a black hole is so massive that nothing can escape, not even light (whic ...
... Black Hole: With very massive stars, the inner core collapses but continues to do so until it becomes nothing more than a point mass. Point mass singularity, and this breaks the laws of Physics. The strength of gravity inside a black hole is so massive that nothing can escape, not even light (whic ...
Today`s Class: Measuring temperatures of stars Astronomer`s
... • Important: the different spectral lines seen are NOT primarily because stars are made of different elements ...
... • Important: the different spectral lines seen are NOT primarily because stars are made of different elements ...
18.1 NOTES How are stars formed? Objective: Describe how stars
... 18.1 NOTES How are stars formed? Objective: Describe how stars form. Name some characteristics of stars ...
... 18.1 NOTES How are stars formed? Objective: Describe how stars form. Name some characteristics of stars ...
1 WHY DO THE STARS IN ORION LOOK SO DIFFERENT FROM
... Luminosity shows the relationship of stars’ radii and surface temperature. Each of the stars in Table 1 is many times more luminous than our sun, and emits enormous amounts of energy. Luminosity is related to a stars surface area and temperature. Two stars having the same temperature and size will b ...
... Luminosity shows the relationship of stars’ radii and surface temperature. Each of the stars in Table 1 is many times more luminous than our sun, and emits enormous amounts of energy. Luminosity is related to a stars surface area and temperature. Two stars having the same temperature and size will b ...
If you wish to a copy of this months Night Sky News
... The Planets Mercury sets 40 minutes after the Sun in the beginning of the month. Mercury is at greatest eastern elongation on the 18th and is best observed at this time, when it sets 80 minutes after the Sun. Mercury presents itself more favourably later in the year. Venus is an unfavourable object ...
... The Planets Mercury sets 40 minutes after the Sun in the beginning of the month. Mercury is at greatest eastern elongation on the 18th and is best observed at this time, when it sets 80 minutes after the Sun. Mercury presents itself more favourably later in the year. Venus is an unfavourable object ...
Reading Preview
... ___________, only about 20 km in diameter. Stars differ in their chemical makeup. Most stars are about ____% hydrogen, ____% helium, and ____% other elements. Astronomers use a spectrograph, a device that breaks light into ________, to find out what elements are in a star. By comparing a star’s sp ...
... ___________, only about 20 km in diameter. Stars differ in their chemical makeup. Most stars are about ____% hydrogen, ____% helium, and ____% other elements. Astronomers use a spectrograph, a device that breaks light into ________, to find out what elements are in a star. By comparing a star’s sp ...
Charcteristic of Stars Powerpoint C
... • The brightness of a star depends on both its size and temperature. A larger star tends to be brighter than a smaller star. A hotter star tends to be brighter than a cooler star. • How bright a star appears depends on both its distance from Earth and how bright the star truly is. Because of these t ...
... • The brightness of a star depends on both its size and temperature. A larger star tends to be brighter than a smaller star. A hotter star tends to be brighter than a cooler star. • How bright a star appears depends on both its distance from Earth and how bright the star truly is. Because of these t ...
Constellation
... pressures. An Binary Star is a stellar system consisting of two stars orbiting about a common center of mass and often appearing as a single visual or telescopic object . In this constellation, and every single other constellation it has stars aligned in a shape. ...
... pressures. An Binary Star is a stellar system consisting of two stars orbiting about a common center of mass and often appearing as a single visual or telescopic object . In this constellation, and every single other constellation it has stars aligned in a shape. ...
Twinkle, Twinkle Little Star
... gas and dust in my Solar Nursery and begins to Shine! When the cool masses of dust and gas combine, a star has a temperature of 1,800,000 degrees F! http://www.virginmedia.com/images/ ...
... gas and dust in my Solar Nursery and begins to Shine! When the cool masses of dust and gas combine, a star has a temperature of 1,800,000 degrees F! http://www.virginmedia.com/images/ ...
SigAssignment
... Mizar is one of “the handle’s” stars. When looking at the Big Dipper it is the second one in from the left side (See Figure 2). Its name comes from the Arabic word meaning waistband or girdle. Mizar is the closet to us out of all the stars in the Big Dipper. It is about 78 light years away from Eart ...
... Mizar is one of “the handle’s” stars. When looking at the Big Dipper it is the second one in from the left side (See Figure 2). Its name comes from the Arabic word meaning waistband or girdle. Mizar is the closet to us out of all the stars in the Big Dipper. It is about 78 light years away from Eart ...
Review Questions for Chp 2
... 10. What is a quasar and why is it so important? 11. How did the universe form? Pick the theory that is supported with the most evidence. 12. Explain two other theories of how the universe formed? 13. The life cycle of a star depends on what? 14. After a white dwarf what is the next stage for this s ...
... 10. What is a quasar and why is it so important? 11. How did the universe form? Pick the theory that is supported with the most evidence. 12. Explain two other theories of how the universe formed? 13. The life cycle of a star depends on what? 14. After a white dwarf what is the next stage for this s ...
S90 U5 T3 Notes - Cochrane High School
... distance between two high or low points on a wave. Frequency is the measure of how many waves pass in a given time period. ...
... distance between two high or low points on a wave. Frequency is the measure of how many waves pass in a given time period. ...
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.