How Far is far ?
... easier to spot in distant galaxies • Some types of Supernova have an intrinsic brightness which can be compared to their actual brightness observed on Earth to judge distance. • But Supernova are not all the same... ...
... easier to spot in distant galaxies • Some types of Supernova have an intrinsic brightness which can be compared to their actual brightness observed on Earth to judge distance. • But Supernova are not all the same... ...
Nov13Guide - East-View
... High in the sky looking southwards, the square of Pegasus is still the group of stars which catches the eye, but the square is joined to the east by the ancient constellation of Andromeda. Andromeda was the mythological daughter of Queen Cassiopeia and King Cepheus who was rescued from Cetus, the se ...
... High in the sky looking southwards, the square of Pegasus is still the group of stars which catches the eye, but the square is joined to the east by the ancient constellation of Andromeda. Andromeda was the mythological daughter of Queen Cassiopeia and King Cepheus who was rescued from Cetus, the se ...
Lecture 17: General Relativity and Black Holes
... 1. The Sun is located at the center of the Milky Way Galaxy. True or false 2. Shapley overestimated the dimensions of the Milky Way Galaxy because he failed to account for interstellar extinction by dust. True or false 3. The Herschels attempted to determine the galaxy's structure by (a) looking for ...
... 1. The Sun is located at the center of the Milky Way Galaxy. True or false 2. Shapley overestimated the dimensions of the Milky Way Galaxy because he failed to account for interstellar extinction by dust. True or false 3. The Herschels attempted to determine the galaxy's structure by (a) looking for ...
Star Name __Direction ___ Degrees
... 21. Name three stars that are second magnitude or brighter. Give their location in direction and degrees above the horizon on the celestial sphere. Star Name __Direction Example: Polaris North ___________ ____________ ...
... 21. Name three stars that are second magnitude or brighter. Give their location in direction and degrees above the horizon on the celestial sphere. Star Name __Direction Example: Polaris North ___________ ____________ ...
Table Number: _____
... distance to the cluster in parsecs. Then convert your answer to light years. Show all work in the ...
... distance to the cluster in parsecs. Then convert your answer to light years. Show all work in the ...
Instrumentation for Cosmology
... Just strings of stars? No, because they would be tightly wound up. Suppose the age of the galaxy is 10 billion years. Its inner regions rotate once in 200 million years… Therefore, we’d expect about 50 turns. The galaxy would look like a clock spring. ...
... Just strings of stars? No, because they would be tightly wound up. Suppose the age of the galaxy is 10 billion years. Its inner regions rotate once in 200 million years… Therefore, we’d expect about 50 turns. The galaxy would look like a clock spring. ...
Extension worksheet – Topic 6 - Cambridge Resources for the IB
... paths of these two stars with reference to a ...
... paths of these two stars with reference to a ...
Test#4
... a) star formation regions b) very compact globular clusters c) clusters of neutron stars d) black hole 37. Einstein’s ring is a) a planetary nebula b) when the image of one galaxy gravitationally distorts the image of another c) the effect that people living on the surface of a “balloon” can look al ...
... a) star formation regions b) very compact globular clusters c) clusters of neutron stars d) black hole 37. Einstein’s ring is a) a planetary nebula b) when the image of one galaxy gravitationally distorts the image of another c) the effect that people living on the surface of a “balloon” can look al ...
Review Quiz No. 22
... is located as distances of less than 100 pc from us. is located in galaxies other than the Milky Way. does not belong to a particular galaxy at all. ...
... is located as distances of less than 100 pc from us. is located in galaxies other than the Milky Way. does not belong to a particular galaxy at all. ...
LT 9: I can describe how a protostar becomes a star.
... – Pulsating stars: change in brightness as they expand (cool, dim) and contract (hot, bright) – Cepheid variables: the longer their cycle is the larger their absolute magnitude is – Eclipsing binary: 2 stars of unequal brightness that revolve around each other and appear to change brightness Pulsa ...
... – Pulsating stars: change in brightness as they expand (cool, dim) and contract (hot, bright) – Cepheid variables: the longer their cycle is the larger their absolute magnitude is – Eclipsing binary: 2 stars of unequal brightness that revolve around each other and appear to change brightness Pulsa ...
Lecture 22 - Star Formation from Molecular Clouds
... • We understand the physics of these processes (at least partially) • We believe the Sun formed like this. • What characteristic of the solar system can we see that is an indicator of the processes of contraction, jet formation, accretion disk formation, etc? ...
... • We understand the physics of these processes (at least partially) • We believe the Sun formed like this. • What characteristic of the solar system can we see that is an indicator of the processes of contraction, jet formation, accretion disk formation, etc? ...
The Life Cycle of a Star Webquest
... ______ The gas and dust compresses into a slowly rotating ball. ______ The gas ball begins to spin faster and cool. ______ A star begins to form from clouds of hydrogen gas and dust. ______ The ball separate into a core and spinning disks. 3. How long can a star stay a protostar? ___________________ ...
... ______ The gas and dust compresses into a slowly rotating ball. ______ The gas ball begins to spin faster and cool. ______ A star begins to form from clouds of hydrogen gas and dust. ______ The ball separate into a core and spinning disks. 3. How long can a star stay a protostar? ___________________ ...
Document
... In 1932, Karl Jansky discovered that the MW produced a broad range of radio emission. Later in 1951, several groups detected the 21-cm hyperfine transition of atomic hydrogen which allowed for precise line-of-sight velocities to be determined without the hindrance of dust absorption. •Gas is confin ...
... In 1932, Karl Jansky discovered that the MW produced a broad range of radio emission. Later in 1951, several groups detected the 21-cm hyperfine transition of atomic hydrogen which allowed for precise line-of-sight velocities to be determined without the hindrance of dust absorption. •Gas is confin ...
less than 1 million years
... 1. Today, scientists have _________ about how stars evolve, what makes them different from one another, and how they _____. 2. When __________ fuel is depleted , a star loses its _________ ___________ status. (2 words) 3. This (depletion of star’s hydrogen) can take less than 1 million years for the ...
... 1. Today, scientists have _________ about how stars evolve, what makes them different from one another, and how they _____. 2. When __________ fuel is depleted , a star loses its _________ ___________ status. (2 words) 3. This (depletion of star’s hydrogen) can take less than 1 million years for the ...
1/2016
... Description: Delta Cephei is the prototype of the Cepheid class of variable stars. With a change in visual magnitude of 3.5 to 4.4, delta Cephei’s entire range of variability can be observed with the unaided eye. Its period of 5.366 days makes it an attractive candidate for anyone anxious to obtain ...
... Description: Delta Cephei is the prototype of the Cepheid class of variable stars. With a change in visual magnitude of 3.5 to 4.4, delta Cephei’s entire range of variability can be observed with the unaided eye. Its period of 5.366 days makes it an attractive candidate for anyone anxious to obtain ...
chap17_s05_probs
... 2.5, you are asked to find the distance to the star. ANSWER: Stars appear fainter if located further away, just like any luminous object. The magnitude of a star represents its brightness, either its perceived brightness, known as its apparent magnitude, or its actual, true, brightness, known as its ...
... 2.5, you are asked to find the distance to the star. ANSWER: Stars appear fainter if located further away, just like any luminous object. The magnitude of a star represents its brightness, either its perceived brightness, known as its apparent magnitude, or its actual, true, brightness, known as its ...
White Dwarf star. Are
... So a star has a life similar to a battery that cannot be recharged. When the battery runs out of energy, it is finished. Our sun will run out of energy and it will be finished too. ...
... So a star has a life similar to a battery that cannot be recharged. When the battery runs out of energy, it is finished. Our sun will run out of energy and it will be finished too. ...
Theoretical Modeling of Massive Stars Mr. Russell University of Delaware
... suggests Eta Carinae is indeed a binary system ...
... suggests Eta Carinae is indeed a binary system ...
chap17_f04_probs
... 2.5, you are asked to find the distance to the star. ANSWER: Stars appear fainter if located further away, just like any luminous object. The magnitude of a star represents its brightness, either its perceived brightness, known as its apparent magnitude, or its actual, true, brightness, known as its ...
... 2.5, you are asked to find the distance to the star. ANSWER: Stars appear fainter if located further away, just like any luminous object. The magnitude of a star represents its brightness, either its perceived brightness, known as its apparent magnitude, or its actual, true, brightness, known as its ...
The Hubble Space Telescope
... The bright orange spot in the center gathers dust and debris from the disk eventually nuclear fusion occurs and a STAR is BORN Heat and radiation create a stellar wind sweeping away lose matter, but some debris remains eventually clumping together to become ...
... The bright orange spot in the center gathers dust and debris from the disk eventually nuclear fusion occurs and a STAR is BORN Heat and radiation create a stellar wind sweeping away lose matter, but some debris remains eventually clumping together to become ...
7th Grade Astronomy Study Guide
... ____ 36. According to the big bang theory, the universe is about a. 4.7 billion years old. c. 470 billion years old. b. 13.7 billion years old. d. 500 billion years old. ____ 37. Scientists think that the Milky Way probably is a. an irregular galaxy. c. an elliptical galaxy. b. a spiral galaxy. d. a ...
... ____ 36. According to the big bang theory, the universe is about a. 4.7 billion years old. c. 470 billion years old. b. 13.7 billion years old. d. 500 billion years old. ____ 37. Scientists think that the Milky Way probably is a. an irregular galaxy. c. an elliptical galaxy. b. a spiral galaxy. d. a ...
Stars and Universe Test Review - Garnet Valley School District
... 22. _________________________ a graph that plots a star’s temperature (x axis) verses its brightness (y-axis) 23. _________________________ irregular shaped galaxies 24. _________________________ the distance from one wave crest to another 25. _________________________ the apparent change in positio ...
... 22. _________________________ a graph that plots a star’s temperature (x axis) verses its brightness (y-axis) 23. _________________________ irregular shaped galaxies 24. _________________________ the distance from one wave crest to another 25. _________________________ the apparent change in positio ...
Science 8
... 5. To measure parallax shift, astronomers look at the same star twice, when Earth is on different sides of the ____________________. ...
... 5. To measure parallax shift, astronomers look at the same star twice, when Earth is on different sides of the ____________________. ...
Life Cycles of Stars
... • At least 10 times the size of our Sun • When a high mass star runs out of fuel it collapses and expands to form a Supergiant • Supergiants end in a massive explosion called a supernova • End result: 1) cosmic debris - nebula 2) a neutron star (or pulsar) 3) a black hole ...
... • At least 10 times the size of our Sun • When a high mass star runs out of fuel it collapses and expands to form a Supergiant • Supergiants end in a massive explosion called a supernova • End result: 1) cosmic debris - nebula 2) a neutron star (or pulsar) 3) a black hole ...
Serpens
Serpens (""the Serpent"", Greek Ὄφις) is a constellation of the northern hemisphere. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations defined by the International Astronomical Union. It is unique among the modern constellations in being split into two non-contiguous parts, Serpens Caput (Serpent's Head) to the west and Serpens Cauda (Serpent's Tail) to the east. Between these two halves lies the constellation of Ophiuchus, the ""Serpent-Bearer"". In figurative representations, the body of the serpent is represented as passing behind Ophiuchus between Mu Serpentis in Serpens Caput and Nu Serpentis in Serpens Cauda.The brightest star in Serpens is the red giant star Alpha Serpentis, or Unukalhai, in Serpens Caput, with an apparent magnitude of 2.63. Also located in Serpens Caput are the naked-eye globular cluster Messier 5 and the naked-eye variables R Serpentis and Tau4 Serpentis. Notable extragalactic objects include Seyfert's Sextet, one of the densest galaxy clusters known; Arp 220, the prototypical ultraluminous infrared galaxy; and Hoag's Object, the most famous of the very rare class of galaxies known as ring galaxies.Part of the Milky Way's galactic plane passes through Serpens Cauda, which is therefore rich in galactic deep-sky objects, such as the Eagle Nebula (IC 4703) and its associated star cluster Messier 16. The nebula measures 70 light-years by 50 light-years and contains the Pillars of Creation, three dust clouds that became famous for the image taken by the Hubble Space Telescope. Other striking objects include the Red Square Nebula, one of the few objects in astronomy to take on a square shape; and Westerhout 40, a massive nearby star-forming region consisting of a molecular cloud and an H II region.