Ch. 15 Notes
... – Easily identifiable by the three stars of his belt during the fall and winter – Betelgeuse, the hunter’s right shoulder, is a red supergiant star. If it was in our sun’s place it would extend to the orbit of Jupiter. It will explode in a supernova explosion sometime in the next 1000 years. When th ...
... – Easily identifiable by the three stars of his belt during the fall and winter – Betelgeuse, the hunter’s right shoulder, is a red supergiant star. If it was in our sun’s place it would extend to the orbit of Jupiter. It will explode in a supernova explosion sometime in the next 1000 years. When th ...
Why Study Binary Stars?
... The amount of light lost depends on eclipsed area & temperature The area covered at each minimum is the same Depth of the minimum depends on eclipsed star’s temperature Primary eclipse is always when the hotter star is behind the cooler star ...
... The amount of light lost depends on eclipsed area & temperature The area covered at each minimum is the same Depth of the minimum depends on eclipsed star’s temperature Primary eclipse is always when the hotter star is behind the cooler star ...
• This chapter concentrates on five goals:
... At the bend of the handle of the Big Dipper lies a pair of stars, Mizar and Alcor. Through a telescope you can discover that Mizar has a fainter companion and so is a member of a visual binary system. Adaptive optics observations have discovered a faint close companion of Alcor, not pictured in thi ...
... At the bend of the handle of the Big Dipper lies a pair of stars, Mizar and Alcor. Through a telescope you can discover that Mizar has a fainter companion and so is a member of a visual binary system. Adaptive optics observations have discovered a faint close companion of Alcor, not pictured in thi ...
Chapter 12 Stellar Evolution
... Which of the following are old stars with no current nuclear reactions? A. red giants B. main sequence stars C. white dwarfs D. proto stars ...
... Which of the following are old stars with no current nuclear reactions? A. red giants B. main sequence stars C. white dwarfs D. proto stars ...
Small images
... interesting systems can be created in which one star is a white dwarf, neutron star, or black hole, with another more ordinary star spilling matter onto it. Classical novae Type Ia supernovae X-ray binaries ...
... interesting systems can be created in which one star is a white dwarf, neutron star, or black hole, with another more ordinary star spilling matter onto it. Classical novae Type Ia supernovae X-ray binaries ...
Stars
... 3. Matter in the gas cloud will begin to condense into a dense region called a protostar 4. Protostar continues to condense, it heats up ...
... 3. Matter in the gas cloud will begin to condense into a dense region called a protostar 4. Protostar continues to condense, it heats up ...
CASPEC Observations of the Most Metal-Deficient Main
... estimated to be at the main-sequence turnoff for old halo stars. In Figure 1 the spectral region around the Mgl triplet is shown for this star and a sequence of stars with decreasing values of [MgIH]. The stars are main-sequence turnoff stars and have about the same effective temperature as CS 22876 ...
... estimated to be at the main-sequence turnoff for old halo stars. In Figure 1 the spectral region around the Mgl triplet is shown for this star and a sequence of stars with decreasing values of [MgIH]. The stars are main-sequence turnoff stars and have about the same effective temperature as CS 22876 ...
science - Amazon Web Services
... Man has always been fascinated by the universe. Astronomy is the science that studies the composition, motions, positions, dimensions, and destinies of the planets, stars, and other heavenly bodies in our universe. Man has known or conjectured about our solar system for many years through mathematic ...
... Man has always been fascinated by the universe. Astronomy is the science that studies the composition, motions, positions, dimensions, and destinies of the planets, stars, and other heavenly bodies in our universe. Man has known or conjectured about our solar system for many years through mathematic ...
Stars and Constellations
... and animals. The early Greeks gave names to these star-shaped figures from their religious and cultural stories. These stories are known today as myths. For centuries men have looked up at the night sky and wondered whether those numberless specks could affect their lives. People who studied the st ...
... and animals. The early Greeks gave names to these star-shaped figures from their religious and cultural stories. These stories are known today as myths. For centuries men have looked up at the night sky and wondered whether those numberless specks could affect their lives. People who studied the st ...
HR Diagram of Messier 80 using Hubble Space Telescope Data
... www.openoffice.org. It can do all those things and more. Now open the F814W data in Excel. On both data sets, we want to delete all the columns except “ID” and “TotMag”. (i.e. the identification number of the star and its magnitude.) These are columns 5 and 13. Be VERY careful how you separate them ...
... www.openoffice.org. It can do all those things and more. Now open the F814W data in Excel. On both data sets, we want to delete all the columns except “ID” and “TotMag”. (i.e. the identification number of the star and its magnitude.) These are columns 5 and 13. Be VERY careful how you separate them ...
Stars and Galaxies
... • Mass of massive stars 6x that of sun • Take same path as medium-sized stars except for after red giant stage they do not become white dwarfs • Carbon atoms continue to fuse creating heavier elements like oxygen & nitrogen • Core of massive star so hot that fusion continues until the heavy element ...
... • Mass of massive stars 6x that of sun • Take same path as medium-sized stars except for after red giant stage they do not become white dwarfs • Carbon atoms continue to fuse creating heavier elements like oxygen & nitrogen • Core of massive star so hot that fusion continues until the heavy element ...
Lecture 13 (pdf from the powerpoint)
... If we know that a group of stars are at the same distance we can plot the following two parameters in place of Luminosity and Temperature on the H-R diagram a) Period and luminosity b) Surface gravity and color c) Brightness and color d) Diameter and brightness e) None of the above ...
... If we know that a group of stars are at the same distance we can plot the following two parameters in place of Luminosity and Temperature on the H-R diagram a) Period and luminosity b) Surface gravity and color c) Brightness and color d) Diameter and brightness e) None of the above ...
Star Evolution
... • If the star is well separated from its Roche Lobe then it is spherical and evolves like a single star • Eclipsing pair of brown dwarfs ...
... • If the star is well separated from its Roche Lobe then it is spherical and evolves like a single star • Eclipsing pair of brown dwarfs ...
Answers
... a. At which stage in its lifecycle will the Sun be at its brightest? Red Giant stage b. How old (in Myr) will the Sun be at this point? About 10,301.800 million years 4. Look at the thermometer tab: a. At which stage in its lifecycle will the Sun be at its hottest? Just before white dwarf stage b. W ...
... a. At which stage in its lifecycle will the Sun be at its brightest? Red Giant stage b. How old (in Myr) will the Sun be at this point? About 10,301.800 million years 4. Look at the thermometer tab: a. At which stage in its lifecycle will the Sun be at its hottest? Just before white dwarf stage b. W ...
Eclipses, Distance, Parallax, Small Angle, and Magnitude (Professor
... Description of a lunar eclipse • As the Moon enters the Earth’s penumbra, the disk shows only a small amount of change. • When the Moon enters the Earth’s Umbra, the Lunar disk will appear to get smaller. Before the disk is completely dark it will become slightly redder,due to the scattering of lig ...
... Description of a lunar eclipse • As the Moon enters the Earth’s penumbra, the disk shows only a small amount of change. • When the Moon enters the Earth’s Umbra, the Lunar disk will appear to get smaller. Before the disk is completely dark it will become slightly redder,due to the scattering of lig ...
Crux The Southern Cross
... locked together gravitationally to form a binary star system. Sometimes double stars may only appear close together from our vantage point on earth. If in reality they do not interact then we call this an optical double. It is possible, but rarer for 4 or 6 stars to be grouped into Computer simulati ...
... locked together gravitationally to form a binary star system. Sometimes double stars may only appear close together from our vantage point on earth. If in reality they do not interact then we call this an optical double. It is possible, but rarer for 4 or 6 stars to be grouped into Computer simulati ...
2017 Div. C (High School) Astronomy Help Session
... They are red giants – very late stages of stellar evolution for low mass stars, on the asymptotic giant branch, – will expel their outer envelopes as planetary nebulae and become white dwarfs within a few million years. Massive enough that they have undergone helium fusion in their cores but are les ...
... They are red giants – very late stages of stellar evolution for low mass stars, on the asymptotic giant branch, – will expel their outer envelopes as planetary nebulae and become white dwarfs within a few million years. Massive enough that they have undergone helium fusion in their cores but are les ...
Science Olympiad 2008 Reach for the Stars Division B
... B) Less than one solar mass C) around 1 solar mass D) 1 to 3 solar masses E) More than 3 solar masses 95. Suppose that Betelgeuse were to become a supernova and be observed from Earth. What would it look like to the naked eye? A) Because the supernova event destroys the star, Betelgeuse would sudden ...
... B) Less than one solar mass C) around 1 solar mass D) 1 to 3 solar masses E) More than 3 solar masses 95. Suppose that Betelgeuse were to become a supernova and be observed from Earth. What would it look like to the naked eye? A) Because the supernova event destroys the star, Betelgeuse would sudden ...
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.