STARS
... • The absence of pressure causes a neutron star or a black hole. • The explosion can be bright enough to see during the day! ...
... • The absence of pressure causes a neutron star or a black hole. • The explosion can be bright enough to see during the day! ...
Your Star: _____________________ d = 1 / p
... * Normally, we compare the brightness to another (distant) star instead of the Sun, since the Sun is obviously much brighter and closer than other stars. We use the Sun here because we want to use solar units throughout. ...
... * Normally, we compare the brightness to another (distant) star instead of the Sun, since the Sun is obviously much brighter and closer than other stars. We use the Sun here because we want to use solar units throughout. ...
knowledge quiz - Discovery Education
... in the middle where it has many stars. Where is the Milky Way brightest? A. in its middle B. on its edges C. It has the same brightness throughout. D. It’s not bright at all. 10. Galaxies are made up of billions of stars, all giving off light, but many galaxies can only be seen with powerful telesco ...
... in the middle where it has many stars. Where is the Milky Way brightest? A. in its middle B. on its edges C. It has the same brightness throughout. D. It’s not bright at all. 10. Galaxies are made up of billions of stars, all giving off light, but many galaxies can only be seen with powerful telesco ...
19Nov_2014
... • You may be asking, “If light cannot escape a black hole, how can we see one?” • If a black hole is in orbit around a companion star, the black hole can pull material away from it. ...
... • You may be asking, “If light cannot escape a black hole, how can we see one?” • If a black hole is in orbit around a companion star, the black hole can pull material away from it. ...
Which object is a meteor?
... • It’s not A because it only takes 8 light minutes to get to Earth from the Sun, a light-year is too far! • It’s not C because a kilometer is way too short… • It’s not D because the distance is only 93 MILLION miles, not 1 trillion miles. • CORRECT ANSWER: B 1 astronomical unit is defined as the av ...
... • It’s not A because it only takes 8 light minutes to get to Earth from the Sun, a light-year is too far! • It’s not C because a kilometer is way too short… • It’s not D because the distance is only 93 MILLION miles, not 1 trillion miles. • CORRECT ANSWER: B 1 astronomical unit is defined as the av ...
3 rd stage of a star`s life = red giant
... Hydrogen fuses together to make helium, releasing large amounts of energy—much in the form of heat & light. ...
... Hydrogen fuses together to make helium, releasing large amounts of energy—much in the form of heat & light. ...
characteristics of stars
... the disk. In the central bulge, the stars are so numerous that they appear very close even though they are separated by large distance. Most of the stars outside the bulge are arranged in long ____________, called _________ which curve around the bulge. The entire Milky Way rotates around this bulge ...
... the disk. In the central bulge, the stars are so numerous that they appear very close even though they are separated by large distance. Most of the stars outside the bulge are arranged in long ____________, called _________ which curve around the bulge. The entire Milky Way rotates around this bulge ...
printer-friendly sample test questions
... Students know the Sun is a medium-sized star located in the Milky Way Galaxy, part of which can be seen as a glowing band of light spanning the clear night sky. W/S Answers to Sample Test Questions 2. C, DOK level 1 3. B, DOK level 1 4. C, DOK level 1 5. D, DOK level 1 6. A, DOK level 2 7. B, DOK le ...
... Students know the Sun is a medium-sized star located in the Milky Way Galaxy, part of which can be seen as a glowing band of light spanning the clear night sky. W/S Answers to Sample Test Questions 2. C, DOK level 1 3. B, DOK level 1 4. C, DOK level 1 5. D, DOK level 1 6. A, DOK level 2 7. B, DOK le ...
File
... The length of a star’s life is determined by its mass. A star with a small mass will live longer than a star with a large mass because it burns less gas. The temperature of a star determines its color. The hottest stars are blue or white and the coolest stars are red or yellow. As a star goes throug ...
... The length of a star’s life is determined by its mass. A star with a small mass will live longer than a star with a large mass because it burns less gas. The temperature of a star determines its color. The hottest stars are blue or white and the coolest stars are red or yellow. As a star goes throug ...
un Facts About Venus F
... un Facts About Venus It’s named after the Roman goddess of love and beauty. It’s the only planet named after a female. It has no moons or rings Unlike most other planets, it rotates clockwise (retrograde rotation). Billions of years ago its climate may have been similar to Earth One day on Venus is ...
... un Facts About Venus It’s named after the Roman goddess of love and beauty. It’s the only planet named after a female. It has no moons or rings Unlike most other planets, it rotates clockwise (retrograde rotation). Billions of years ago its climate may have been similar to Earth One day on Venus is ...
Magnitude scale theory
... How bright a star looks is given by its apparent magnitude. This is different from its absolute magnitude. The absolute magnitude of a star is defined as the apparent magnitude that it would have if placed at a distance of 10 parsecs from the Earth. Consider two stars A and B. Star A appears to be b ...
... How bright a star looks is given by its apparent magnitude. This is different from its absolute magnitude. The absolute magnitude of a star is defined as the apparent magnitude that it would have if placed at a distance of 10 parsecs from the Earth. Consider two stars A and B. Star A appears to be b ...
Definitions
... Spectroscopy – is the systematic study of spectra and spectral lines Blackbody – is a hypothetical body that is a perfect absorber and emitter of EMR C spectrum – consists of a continuous range of frequencies w/o either bright or dark lines, appearing as a continuous range of colours E spectrum – co ...
... Spectroscopy – is the systematic study of spectra and spectral lines Blackbody – is a hypothetical body that is a perfect absorber and emitter of EMR C spectrum – consists of a continuous range of frequencies w/o either bright or dark lines, appearing as a continuous range of colours E spectrum – co ...
Apparent Magnitude
... Why do stars in the night sky appear considerably different in brightness? The distances to stars are not all the same. ...
... Why do stars in the night sky appear considerably different in brightness? The distances to stars are not all the same. ...
Life Cycle of Stars - Faulkes Telescope Project
... they spend the rest of their lives slowly leaking out energy that was formed during it’s nuclear fusion phases. ...
... they spend the rest of their lives slowly leaking out energy that was formed during it’s nuclear fusion phases. ...
Astronomy Universe2
... What is a Main Sequence Star? • The H-R diagram represents a pattern that was discovered that allows stars to be compared by brightness and color. • The majority of stars are found in a band stretching diagonally across the diagram called the “Main Sequence”. • Stars start out in the Main Sequence ...
... What is a Main Sequence Star? • The H-R diagram represents a pattern that was discovered that allows stars to be compared by brightness and color. • The majority of stars are found in a band stretching diagonally across the diagram called the “Main Sequence”. • Stars start out in the Main Sequence ...
Morning Announcements
... how bright it appears at its true location. Betelgeuse has an absolute magnitude (M) of –5.5, which tells us how bright it would appear if we could move it to a distance of 10 parsecs (about 33 light-years). 11) Where would Betelgeuse appear brighter, in its true location or if it were at a distance ...
... how bright it appears at its true location. Betelgeuse has an absolute magnitude (M) of –5.5, which tells us how bright it would appear if we could move it to a distance of 10 parsecs (about 33 light-years). 11) Where would Betelgeuse appear brighter, in its true location or if it were at a distance ...
Measuring stars Part I
... If p is in arcsec and d is in parsecs A star with a parallax of 1 arcsec is 1 parsec distant ...
... If p is in arcsec and d is in parsecs A star with a parallax of 1 arcsec is 1 parsec distant ...
solution
... apparent magnitude of 13.25. Which star appears brighter? From this information alone, what can you conclude about the luminosities of these stars? Explain your answer. Zubenelgenubi appears to be brighter, since it has a lower apparent magnitude (remember that a negative apparent magnitude is very ...
... apparent magnitude of 13.25. Which star appears brighter? From this information alone, what can you conclude about the luminosities of these stars? Explain your answer. Zubenelgenubi appears to be brighter, since it has a lower apparent magnitude (remember that a negative apparent magnitude is very ...
Life Cycle of Stars
... 2. If one of those clouds of dust and gas is massive enough, it’s own gravity causes it to start to collapse so it folds in on itself towards the center of that cloud it gets denser and denser and hotter and hotter 3. Eventually, the particles of that the gas and the dust are made of are brought so ...
... 2. If one of those clouds of dust and gas is massive enough, it’s own gravity causes it to start to collapse so it folds in on itself towards the center of that cloud it gets denser and denser and hotter and hotter 3. Eventually, the particles of that the gas and the dust are made of are brought so ...
HNRS 227 Lecture #2 Chapters 2 and 3
... apparent brightness The absolute magnitude of a star is the apparent magnitude it would have if viewed from a distance of 10 parsecs ...
... apparent brightness The absolute magnitude of a star is the apparent magnitude it would have if viewed from a distance of 10 parsecs ...
OUSNMAR05 - The Open University
... orientation of the map may differ from that of the observed image of the Moon depending on the type of telescope used. If you find the Moon too bright use a filter to reduce the glare. At times features along different parts of the limb are better presented due the effect of libration – an apparent ...
... orientation of the map may differ from that of the observed image of the Moon depending on the type of telescope used. If you find the Moon too bright use a filter to reduce the glare. At times features along different parts of the limb are better presented due the effect of libration – an apparent ...
Solutions2
... lined up in a straight line with the Earth and Sun, bringing the planet as close as it can come to the Earth. Jupiter reaches opposition roughly every 13 months. Since its orbit (and Earth’s) is elliptical, the minimum distance varies between oppositions. On Oct. 29, 2011, Jupiter reaches opposition ...
... lined up in a straight line with the Earth and Sun, bringing the planet as close as it can come to the Earth. Jupiter reaches opposition roughly every 13 months. Since its orbit (and Earth’s) is elliptical, the minimum distance varies between oppositions. On Oct. 29, 2011, Jupiter reaches opposition ...
Teacher Sheet 1. What variables does the HR Diagram compare
... 14. Describe stars A, B, C, and D in terms of their brightness and temperature. Star A is red and therefore, cool. Its luminosity is 1/1000 of that of the sun; therefore, it is dim. Star B is a hot, blue star and very luminous. Both A and B are on the Main Sequence. Star C is also a hot, blue star. ...
... 14. Describe stars A, B, C, and D in terms of their brightness and temperature. Star A is red and therefore, cool. Its luminosity is 1/1000 of that of the sun; therefore, it is dim. Star B is a hot, blue star and very luminous. Both A and B are on the Main Sequence. Star C is also a hot, blue star. ...
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.