Astronomy 103
... assistants and famously declared that his maid could do a better job. He was right. He hired his maid, Williamina Fleming, and later a bunch of other women around 1881. ...
... assistants and famously declared that his maid could do a better job. He was right. He hired his maid, Williamina Fleming, and later a bunch of other women around 1881. ...
Stars: Their Life and Afterlife
... Superbubbles are large cavities of hot, low-density plasma that are created by the collective effects of a large number of massive stars. We saw earlier in the lecture series that stars tend to form in clusters as a giant molecular cloud contracts. This means that they not only tend to form close to ...
... Superbubbles are large cavities of hot, low-density plasma that are created by the collective effects of a large number of massive stars. We saw earlier in the lecture series that stars tend to form in clusters as a giant molecular cloud contracts. This means that they not only tend to form close to ...
Photons
... The Wide Field Imager (WFI) at the MPG/ESO 2.2 m La Silla Bolometric corrections have been computed in the telescope provides imaging of excellent quality over a 34′ × 33′ field of view. It contains a peculiar set of broad-band filters, VEGAmag system assuming all Vega apparent magnitudes to very di ...
... The Wide Field Imager (WFI) at the MPG/ESO 2.2 m La Silla Bolometric corrections have been computed in the telescope provides imaging of excellent quality over a 34′ × 33′ field of view. It contains a peculiar set of broad-band filters, VEGAmag system assuming all Vega apparent magnitudes to very di ...
HW #02 Solutions
... 10. If our Sun has a surface temperature of 5840 K, how many times hotter than the Sun is the hottest Otype star? How many times cooler than the Sun is the coolest M-type star? The hottest O-type star has a temperature of about 50,000 K and this is approximately 10 times hotter than the Sun (5,800 K ...
... 10. If our Sun has a surface temperature of 5840 K, how many times hotter than the Sun is the hottest Otype star? How many times cooler than the Sun is the coolest M-type star? The hottest O-type star has a temperature of about 50,000 K and this is approximately 10 times hotter than the Sun (5,800 K ...
Stellar Spire in the Eagle Nebula
... gas that reside in chaotic neighborhoods, where energy from newborn stars sculpts fantasy-like landscapes in the gas. The tower is a giant incubator for these newborn stars. A torrent of ultraviolet light from a band of massive, hot, young stars [off the top of the image] is eroding the pillar. The ...
... gas that reside in chaotic neighborhoods, where energy from newborn stars sculpts fantasy-like landscapes in the gas. The tower is a giant incubator for these newborn stars. A torrent of ultraviolet light from a band of massive, hot, young stars [off the top of the image] is eroding the pillar. The ...
apparent magnitude - Harding University
... we see a star, we are actually seeing the light that was emitted from that star some time in the past. The nearest star, Proxima Centauri, is about 4.3 light years (or 4.08 x 1013 m) away from our Sun, which means it takes light 4.3 years to reach us from that star. Thus, if the star were to explo ...
... we see a star, we are actually seeing the light that was emitted from that star some time in the past. The nearest star, Proxima Centauri, is about 4.3 light years (or 4.08 x 1013 m) away from our Sun, which means it takes light 4.3 years to reach us from that star. Thus, if the star were to explo ...
Packet 3
... 7. Stars that are closer than 32.6 light-years away appear __________________________. Therefore those stars that are further than 32.6 light-years away appear ________________________. 8. How far away a star would be if it’s apparent magnitude and absolute magnitude were equal? _________ Match the ...
... 7. Stars that are closer than 32.6 light-years away appear __________________________. Therefore those stars that are further than 32.6 light-years away appear ________________________. 8. How far away a star would be if it’s apparent magnitude and absolute magnitude were equal? _________ Match the ...
REGIONAL exam 2013
... 5. Each question is worth one point. Tiebreaker questions are indicated with a (T#) in which the number indicates the order of consultation in the event of a tie. Tiebreaker questions count toward the overall raw score, and are only used as tiebreakers when there is a tie. In such cases, (T1) will b ...
... 5. Each question is worth one point. Tiebreaker questions are indicated with a (T#) in which the number indicates the order of consultation in the event of a tie. Tiebreaker questions count toward the overall raw score, and are only used as tiebreakers when there is a tie. In such cases, (T1) will b ...
Tutorial: Luminosity
... However, the “brightness” of a star decreases as one moves farther and farther away. If a sphere of radius d is drawn around the star, it should be clear that the energy/sec through the surface of this sphere is the same as the energy/sec emitted through the surface of the star, since there is no me ...
... However, the “brightness” of a star decreases as one moves farther and farther away. If a sphere of radius d is drawn around the star, it should be clear that the energy/sec through the surface of this sphere is the same as the energy/sec emitted through the surface of the star, since there is no me ...
Auriga (constellation)
Auriga is one of the 48 constellations listed by the 2nd-century astronomer Ptolemy and remains one of the 88 modern constellations. Located north of the celestial equator, its name is the Latin word for ""charioteer"", associating it with various mythological charioteers, including Erichthonius and Myrtilus. Auriga is most prominent during winter evenings in the Northern Hemisphere, along with the five other constellations that have stars in the Winter Hexagon asterism. Because of its northern declination, Auriga is only visible in its entirety as far as 34° south; for observers farther south it lies partially or fully below the horizon. A large constellation, with an area of 657 square degrees, it is half the size of the largest constellation, Hydra.Its brightest star, Capella, is an unusual multiple star system among the brightest stars in the night sky. Beta Aurigae is an interesting variable star in the constellation; Epsilon Aurigae, a nearby eclipsing binary with an unusually long period, has been studied intensively. Because of its position near the winter Milky Way, Auriga has many bright open clusters in its borders, including M36, M37, and M38, popular targets for amateur astronomers. In addition, it has one prominent nebula, the Flaming Star Nebula, associated with the variable star AE Aurigae.In Chinese mythology, Auriga's stars were incorporated into several constellations, including the celestial emperors' chariots, made up of the modern constellation's brightest stars. Auriga is home to the radiant for the Aurigids, Zeta Aurigids, Delta Aurigids, and the hypothesized Iota Aurigids.