H-R Diagram
... absolute magnitude. From such a diagram, other information about a star's properties and life cycle can be determined. A simplified H-R diagram appears in your textbook. In this laboratory, you will construct an H-R diagram using data on the 20 stars that are nearest to our sun (Figure 21.1) and the ...
... absolute magnitude. From such a diagram, other information about a star's properties and life cycle can be determined. A simplified H-R diagram appears in your textbook. In this laboratory, you will construct an H-R diagram using data on the 20 stars that are nearest to our sun (Figure 21.1) and the ...
Beyond the Solar System Homework for Geology 8
... stars can be additional colors as well, depending upon their surface temperatures. 46. Only the most massive stars evolve to become black dwarfs. 47. Hot stars evolve much more rapidly than do cool stars. 48. Degenerate matter is highly condensed material, where even the electrons of atoms are pushe ...
... stars can be additional colors as well, depending upon their surface temperatures. 46. Only the most massive stars evolve to become black dwarfs. 47. Hot stars evolve much more rapidly than do cool stars. 48. Degenerate matter is highly condensed material, where even the electrons of atoms are pushe ...
Integrative Studies 410 Our Place in the Universe
... • A relation between the rotation speed of a spiral galaxy and its luminosity • The more mass a galaxy has the brighter it is the faster it rotates the wider the spectral lines are • Measuring rotation speed allows us to estimate luminosity; comparing to observed (apparent) brightness then tell ...
... • A relation between the rotation speed of a spiral galaxy and its luminosity • The more mass a galaxy has the brighter it is the faster it rotates the wider the spectral lines are • Measuring rotation speed allows us to estimate luminosity; comparing to observed (apparent) brightness then tell ...
reach for the stars
... older Pop II stars formed when there was little in the Universe but H and He. After these stars had fused H and He into heavier elements, they often scattered material back into space (through supernovae and planetary nebula). The younger Pop I stars then formed out of gaseous clouds of H, He, and t ...
... older Pop II stars formed when there was little in the Universe but H and He. After these stars had fused H and He into heavier elements, they often scattered material back into space (through supernovae and planetary nebula). The younger Pop I stars then formed out of gaseous clouds of H, He, and t ...
annie jump cannon
... brightness changes of these stars can range from a thousandth of a magnitude to as much as twenty magnitudes over periods of a fraction of a second to years, depending on the type of variable star.” ...
... brightness changes of these stars can range from a thousandth of a magnitude to as much as twenty magnitudes over periods of a fraction of a second to years, depending on the type of variable star.” ...
Star Birth
... What steps are involved in forming a star like the Sun? When a star forms, why does it end up with only a fraction of the available matter? What do star clusters tell us about the formation of stars? Where in the Galaxy does star formation take place? How can the death of one star trigger the birth ...
... What steps are involved in forming a star like the Sun? When a star forms, why does it end up with only a fraction of the available matter? What do star clusters tell us about the formation of stars? Where in the Galaxy does star formation take place? How can the death of one star trigger the birth ...
18 are exactly the same ones as for galactic star clusters of early
... The colour-magnitude array shows the usual blue sequence deviating upwards in a way which suggests a conventional age similar to that of the Pleiades, but NGC 6067 is 15-20 times richer. The cluster has red supergiants brighter than those in the otherwise similar cluster Mil. A few supergiants strad ...
... The colour-magnitude array shows the usual blue sequence deviating upwards in a way which suggests a conventional age similar to that of the Pleiades, but NGC 6067 is 15-20 times richer. The cluster has red supergiants brighter than those in the otherwise similar cluster Mil. A few supergiants strad ...
stars & galaxies
... Our galaxy is a spiral galaxy, in which the sun is one in a billion stars that are found inside. All the stars in the Milky Way have their own motion, some are moving towards the sun while others are moving away from our sun. Our sun is located on one of the spiral arms. It is rotating around the nu ...
... Our galaxy is a spiral galaxy, in which the sun is one in a billion stars that are found inside. All the stars in the Milky Way have their own motion, some are moving towards the sun while others are moving away from our sun. Our sun is located on one of the spiral arms. It is rotating around the nu ...
![David`s Mapping the Heavens[1]](http://s1.studyres.com/store/data/008084229_1-877ead4b57cbb51d927fdcd6d06ce5c8-300x300.png)
David`s Mapping the Heavens[1]
... Luminosity – The amount of energy radiated into space every second by a star. Luminosity depends on: ...
... Luminosity – The amount of energy radiated into space every second by a star. Luminosity depends on: ...
galaxy.
... April 1920: the Curtis-Shapely debate Shapely (Harvard): Argued that spiral nebulae were inside our galaxy for several reasons • Galaxy was huge (he didn’t know about dust). • van Maanen’s observations showed that one spiral nebula, M 101, could be observed to rotate. It it were outside our galaxy, ...
... April 1920: the Curtis-Shapely debate Shapely (Harvard): Argued that spiral nebulae were inside our galaxy for several reasons • Galaxy was huge (he didn’t know about dust). • van Maanen’s observations showed that one spiral nebula, M 101, could be observed to rotate. It it were outside our galaxy, ...
NASAexplores 9-12 Lesson: Classified Stars - Science
... you while gazing into the night sky. The absolute magnitude and luminosity are used for that. They give you the relative brightness based on all of the stars being the same distance away from the earth. On this diagram, you do not see all of the individual stars. Since there are so many stars, only ...
... you while gazing into the night sky. The absolute magnitude and luminosity are used for that. They give you the relative brightness based on all of the stars being the same distance away from the earth. On this diagram, you do not see all of the individual stars. Since there are so many stars, only ...
Constellations - Sierra Star Gazers
... in the sky. In fact it is somewhat nearer to us, at a distance of 5,000 light years. M20 is considerably smaller than the Lagoon. Look for an object about 20’ in extent. In my 4” scope at 23x, I can view both M8 and M20 in the same field of view. Commonly known as the Trifid Nebula, close inspection ...
... in the sky. In fact it is somewhat nearer to us, at a distance of 5,000 light years. M20 is considerably smaller than the Lagoon. Look for an object about 20’ in extent. In my 4” scope at 23x, I can view both M8 and M20 in the same field of view. Commonly known as the Trifid Nebula, close inspection ...
Week 11 Concept Summary
... found there. There is no gas and dust, and what stars are there have very low concentrations of heavy elements. They also orbit randomly in the gallaxy. 2. Interstellar Medium: This is the gas and dust that floats freely about the galaxy. It is what blocks visible light and only allows us to see nea ...
... found there. There is no gas and dust, and what stars are there have very low concentrations of heavy elements. They also orbit randomly in the gallaxy. 2. Interstellar Medium: This is the gas and dust that floats freely about the galaxy. It is what blocks visible light and only allows us to see nea ...
Topics for Today`s Class Luminosity Equation The Heart of
... – Luminosity (or absolute magnitude) versus temperature (or spectral type) ...
... – Luminosity (or absolute magnitude) versus temperature (or spectral type) ...
Hertzsprung-Russell Diagram
... A star has a high luminosity (100 solar luminosities) and a surface temperature of 3500 K. What type of star is it? ...
... A star has a high luminosity (100 solar luminosities) and a surface temperature of 3500 K. What type of star is it? ...
Photons
... Fig. 3. The filter sets used in the present work. From top to bottom, we show the filter+detector transmission curves S λ for the systems: (1) HST/NICMOS, (2) HST/WFPC2, (3) Washington, (4) ESO/EMMI, (5) ESO/WFI U BVRIZ + ESO/SOFI JHK, and (6) Johnson-CousinsGlass. All references are given in Sect. ...
... Fig. 3. The filter sets used in the present work. From top to bottom, we show the filter+detector transmission curves S λ for the systems: (1) HST/NICMOS, (2) HST/WFPC2, (3) Washington, (4) ESO/EMMI, (5) ESO/WFI U BVRIZ + ESO/SOFI JHK, and (6) Johnson-CousinsGlass. All references are given in Sect. ...
Reach for the Stars B
... 4. What will eventually cause the dust and gas in this DSO to dissipate? 5. Which DSO, a very bright radio source, is depicted in Image [3]? 6. Why might this DSO not have been visible in the past? 7. Which DSO, a massive star-forming region, is depicted in Image [4]? 8. [T10] What is the common nic ...
... 4. What will eventually cause the dust and gas in this DSO to dissipate? 5. Which DSO, a very bright radio source, is depicted in Image [3]? 6. Why might this DSO not have been visible in the past? 7. Which DSO, a massive star-forming region, is depicted in Image [4]? 8. [T10] What is the common nic ...
October 2011
... Between 9:20 and 11:15, we looked at three planetary nebulae, NGC 6543 (The Cat’s Eye Nebula), NGC 6826 (the Blinking Nebula), and NGC 7009 (the Saturn Nebula). The Cat’s Eye and the Saturn Nebulae were both impressive, but the Cat’s Eye was not as good as I have seen it in the past from Mount Wilso ...
... Between 9:20 and 11:15, we looked at three planetary nebulae, NGC 6543 (The Cat’s Eye Nebula), NGC 6826 (the Blinking Nebula), and NGC 7009 (the Saturn Nebula). The Cat’s Eye and the Saturn Nebulae were both impressive, but the Cat’s Eye was not as good as I have seen it in the past from Mount Wilso ...
Directed Reading A
... _____ 18. left side of modern H-R diagram 19. Place these stars in order from earliest in life cycle to oldest in life cycle: red giant, white dwarf, main-sequence star. _______________________________________________________________ _______________________________________________________________ __ ...
... _____ 18. left side of modern H-R diagram 19. Place these stars in order from earliest in life cycle to oldest in life cycle: red giant, white dwarf, main-sequence star. _______________________________________________________________ _______________________________________________________________ __ ...
Midterm Study Game
... Galileo), you notice there are actually TWO stars. This is called a Binary Star System or MULTIPLE Star system. Together, describe the absolute magnitude of EACH star, compared to the apparent magnitude of the two together. The absolute magnitude of each star is less than the total absolute magnitud ...
... Galileo), you notice there are actually TWO stars. This is called a Binary Star System or MULTIPLE Star system. Together, describe the absolute magnitude of EACH star, compared to the apparent magnitude of the two together. The absolute magnitude of each star is less than the total absolute magnitud ...
star
... closer to Earth than other stars. In fact, the sun is really a star of only average brightness. Apparent brightness-‐ the brightness of a star as it appears from Earth. ...
... closer to Earth than other stars. In fact, the sun is really a star of only average brightness. Apparent brightness-‐ the brightness of a star as it appears from Earth. ...
Astron 104 Laboratory #9 Cepheid Variable Stars
... • The apparent magnitude of the star, which is a measure of how much light we receive on Earth (i.e., how bright do we measure the star to be). • The absolute magnitude of the star, which is a measure of how much light it is actually radiating into space (i.e, how bright it actually is). • The star’ ...
... • The apparent magnitude of the star, which is a measure of how much light we receive on Earth (i.e., how bright do we measure the star to be). • The absolute magnitude of the star, which is a measure of how much light it is actually radiating into space (i.e, how bright it actually is). • The star’ ...
Aries (constellation)
Aries is one of the constellations of the zodiac. It is located in the northern celestial hemisphere between Pisces to the west and Taurus to the east. The name Aries is Latin for ram, and its symbol is 20px (Unicode ♈), representing a ram's horns. It is one of the 48 constellations described by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations. It is a mid-sized constellation, ranking 39th overall size, with an area of 441 square degrees (1.1% of the celestial sphere).Although Aries came to represent specifically the ram whose fleece became the Golden Fleece of Ancient Greek mythology, it has represented a ram since late Babylonian times. Before that, the stars of Aries formed a farmhand. Different cultures have incorporated the stars of Aries into different constellations including twin inspectors in China and a porpoise in the Marshall Islands. Aries is a relatively dim constellation, possessing only four bright stars: Hamal (Alpha Arietis, second magnitude), Sheratan (Beta Arietis, third magnitude), Mesarthim (Gamma Arietis, fourth magnitude), and 41 Arietis (also fourth magnitude). The few deep-sky objects within the constellation are quite faint and include several pairs of interacting galaxies. Several meteor showers appear to radiate from Aries, including the Daytime Arietids and the Epsilon Arietids.