Introduction to Stars: Their Properties
... Define brightness (see text), apparent magnitude, absolute magnitude. ...
... Define brightness (see text), apparent magnitude, absolute magnitude. ...
How Far Can You See?
... The nearest such spiral galaxy to our own is the Andromeda Galaxy, which is about 21⁄2 million light-years away. It is visible to the unaided eye as a faint smudge in the autumn sky (see page 30). It may not look like much, but consider this: when the light hitting your eye left the Andromeda Galaxy ...
... The nearest such spiral galaxy to our own is the Andromeda Galaxy, which is about 21⁄2 million light-years away. It is visible to the unaided eye as a faint smudge in the autumn sky (see page 30). It may not look like much, but consider this: when the light hitting your eye left the Andromeda Galaxy ...
PDF Version
... The final step in calculating the size of the universe is using the red shift of galaxies. The red shift is a result of the Doppler effect, in which waves emitted by a source that is moving away from you have a longer apparent wavelength. (You can illustrate the Doppler effect using sound by noticin ...
... The final step in calculating the size of the universe is using the red shift of galaxies. The red shift is a result of the Doppler effect, in which waves emitted by a source that is moving away from you have a longer apparent wavelength. (You can illustrate the Doppler effect using sound by noticin ...
Star Groups and Big Bang Power Point
... constellations come from Latin. Some constellations are named for real or imaginary animals, such as Ursa Major (the great bear) or ancient gods or legendary heroes, such as Hercules or Orion. ...
... constellations come from Latin. Some constellations are named for real or imaginary animals, such as Ursa Major (the great bear) or ancient gods or legendary heroes, such as Hercules or Orion. ...
The Night Sky This Month - Usk Astronomical Society
... Some say that the constellation of the Bull was depicted in caves by humans tens of thousands of years ago to the extent that even the Pleiades were shown. What is certain is that Taurus the Bull, with the Scorpion and the Lion, was portrayed over 6000 years ago in the Euphrates Valley, in ancient M ...
... Some say that the constellation of the Bull was depicted in caves by humans tens of thousands of years ago to the extent that even the Pleiades were shown. What is certain is that Taurus the Bull, with the Scorpion and the Lion, was portrayed over 6000 years ago in the Euphrates Valley, in ancient M ...
Solutions 5
... In the spectrum of a particular star, the Balmer line H α has a wavelength of 656.41 nm. The laboratory value for the wavelength of H α is 656.28 nm. (A) Find the star’s radial velocity. (B) Is this star approaching us or moving away? Explain. (C) Find the wavelength at which you would expect to fin ...
... In the spectrum of a particular star, the Balmer line H α has a wavelength of 656.41 nm. The laboratory value for the wavelength of H α is 656.28 nm. (A) Find the star’s radial velocity. (B) Is this star approaching us or moving away? Explain. (C) Find the wavelength at which you would expect to fin ...
Bellringer - Madison County Schools
... Astronomers use parallax. They measure how far a star seems to move when Earth moves from one side of the sun to the other. The distance the star seems to move tells an astronomer how far the star is from Earth. ...
... Astronomers use parallax. They measure how far a star seems to move when Earth moves from one side of the sun to the other. The distance the star seems to move tells an astronomer how far the star is from Earth. ...
Solutions
... of these Galaxies. Comment on what this says about how often you might expect to see galaxy/galaxy collisions in the Universe compared to star/star collisions in our Galaxy. (For the size of our Galaxy and the distance to the Andromeda Galaxy, refer to the Reading Assignment from September 17.) The ...
... of these Galaxies. Comment on what this says about how often you might expect to see galaxy/galaxy collisions in the Universe compared to star/star collisions in our Galaxy. (For the size of our Galaxy and the distance to the Andromeda Galaxy, refer to the Reading Assignment from September 17.) The ...
Stars and Galaxies
... 24. Astronomers use spectrographs to study the ___________________ of stars to identify properties of stars. 25. Spectrographs break ______________________ into its component colors. 26. Dark lines are in the spectrum of a star. 27. The dark lines are caused by _____________________ in the star’s at ...
... 24. Astronomers use spectrographs to study the ___________________ of stars to identify properties of stars. 25. Spectrographs break ______________________ into its component colors. 26. Dark lines are in the spectrum of a star. 27. The dark lines are caused by _____________________ in the star’s at ...
CONSTELLATION CEPHEUS, KING OF ETHIOPIA Cepheus is a
... descent from the nymph Io, one of the loves of Zeus – and having Zeus as a relative was always an advantage when it came to being commemorated among the constellations. It was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations. ...
... descent from the nymph Io, one of the loves of Zeus – and having Zeus as a relative was always an advantage when it came to being commemorated among the constellations. It was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations. ...
Astronomy Review revised Key
... yellow, 5000-6000 degrees C in temperature, average in brightness, main sequence, average star. ...
... yellow, 5000-6000 degrees C in temperature, average in brightness, main sequence, average star. ...
Highlights of the Month - Bridgend Astronomical Society
... wealth of stars and clusters to observe. Just to the left of the line joining Deneb and Sadr, the star at the centre of the outstretched wings, you may, under very clear dark skies, see a region which is darker than the surroundings. This is called the Cygnus Rift and is caused by the obscuration of ...
... wealth of stars and clusters to observe. Just to the left of the line joining Deneb and Sadr, the star at the centre of the outstretched wings, you may, under very clear dark skies, see a region which is darker than the surroundings. This is called the Cygnus Rift and is caused by the obscuration of ...
HR Diagram - Geneva 304
... 52. Stars are at enormous distances, yet we can see thousands in our night sky; they are extremely luminous!!! What is the source of their enormous energy? 53. Why does nuclear fusion produce so much energy? 54. Explain why stars favor fusion reactions over fission reactions. 55. Describe what condi ...
... 52. Stars are at enormous distances, yet we can see thousands in our night sky; they are extremely luminous!!! What is the source of their enormous energy? 53. Why does nuclear fusion produce so much energy? 54. Explain why stars favor fusion reactions over fission reactions. 55. Describe what condi ...
Lucas - WordPress.com
... associating it with various mythological charioteers, including Erichthonius and Myrtilus. Auriga is most prominent in the northern Hemisphere winter sky, along with the five other constellations that have stars in the Winter Hexagon asterism. Auriga is half the size of the largest constellation, Hy ...
... associating it with various mythological charioteers, including Erichthonius and Myrtilus. Auriga is most prominent in the northern Hemisphere winter sky, along with the five other constellations that have stars in the Winter Hexagon asterism. Auriga is half the size of the largest constellation, Hy ...
Descriptions For Posters
... The Andromeda Galaxy (M31) is the closest large galaxy to the Milky Way and is one of a few galaxies that can be seen unaided from the Earth. In approximately 4.5 billion years the Andromeda Galaxy and the Milky Way are expected to collide and the result will be a giant elliptical galaxy. Andromeda ...
... The Andromeda Galaxy (M31) is the closest large galaxy to the Milky Way and is one of a few galaxies that can be seen unaided from the Earth. In approximately 4.5 billion years the Andromeda Galaxy and the Milky Way are expected to collide and the result will be a giant elliptical galaxy. Andromeda ...
Definitions of Magnitudes and Surface Brightness
... The quantity ------- has the physical units of W m – 2 and in galaxy studies is often represented in solar luminosities per square parsec and is given the symbol Σ - and is also called surface brightness. The reason for this definition lies in the origin of the magnitude system. For a given patch of ...
... The quantity ------- has the physical units of W m – 2 and in galaxy studies is often represented in solar luminosities per square parsec and is given the symbol Σ - and is also called surface brightness. The reason for this definition lies in the origin of the magnitude system. For a given patch of ...
JPL Small-Body Database Browser
... Proper Motion Proper motion was discovered by Edmund Halley. He compared the positions of bright stars that had been recorded by (Ptolemy). http://www.hwy.com.au/~sjquirk/images/film/barnard.html Barnard’s Star has the highest known proper motion of 10.3”/year. Even at that rate, Barnard’s Star wil ...
... Proper Motion Proper motion was discovered by Edmund Halley. He compared the positions of bright stars that had been recorded by (Ptolemy). http://www.hwy.com.au/~sjquirk/images/film/barnard.html Barnard’s Star has the highest known proper motion of 10.3”/year. Even at that rate, Barnard’s Star wil ...
Distances to the Stars in Leo
... The student determines the distances to seven of the brightest stars in the constellation Leo using the method of spectroscopic parallax and compares the results to the more accurate distances derived from measured trigonometric parallaxes. Background and Theory If the distance to the star is known ...
... The student determines the distances to seven of the brightest stars in the constellation Leo using the method of spectroscopic parallax and compares the results to the more accurate distances derived from measured trigonometric parallaxes. Background and Theory If the distance to the star is known ...
Astronomy Study Guide #2
... 37. What is the single-most important stellar parameter? 38. What is the ``main sequence'' and how is it described? 39. What determines the lifetime of a star? 40. What are the mass ranges of Main Sequence stars in solar masses ( in M0)? 41. Stars on the Main Sequence fall into what sizes compared t ...
... 37. What is the single-most important stellar parameter? 38. What is the ``main sequence'' and how is it described? 39. What determines the lifetime of a star? 40. What are the mass ranges of Main Sequence stars in solar masses ( in M0)? 41. Stars on the Main Sequence fall into what sizes compared t ...
PDF version (two pages, including the full text)
... Southern Cross and the Pointers (Alpha and Beta Centauri). Alpha Centauri is a triple system, with two sun like stars orbiting each other every 80 years and a dim red dwarf tagging along at a much larger distance. This star was discovered by Robert Innes at the Union Observatory in Johannesburg in 1 ...
... Southern Cross and the Pointers (Alpha and Beta Centauri). Alpha Centauri is a triple system, with two sun like stars orbiting each other every 80 years and a dim red dwarf tagging along at a much larger distance. This star was discovered by Robert Innes at the Union Observatory in Johannesburg in 1 ...
ted_2012_power_of_design
... Francisco–Oakland Bay Bridge was the ability to communicate to the general public how the world’s largest self-anchored suspension bridge would reshape the surrounding landscape. Engineering, manufacturing, and construction data was used to create contextual, photorealistic visualizations of the bri ...
... Francisco–Oakland Bay Bridge was the ability to communicate to the general public how the world’s largest self-anchored suspension bridge would reshape the surrounding landscape. Engineering, manufacturing, and construction data was used to create contextual, photorealistic visualizations of the bri ...
Small Wonders: Ursa Minor
... realize that the front/pointer stars of the Big Dipper (recognized the world over) point towards Polaris, many non astronomers who look up still manage to link the "little dipper" with M45 - the Pleiades. The true little dipper's origins are somewhat shrouded in mystery, but there's evidence that it ...
... realize that the front/pointer stars of the Big Dipper (recognized the world over) point towards Polaris, many non astronomers who look up still manage to link the "little dipper" with M45 - the Pleiades. The true little dipper's origins are somewhat shrouded in mystery, but there's evidence that it ...
Stars - TeacherWeb
... together by gravity and is composed of gas and emits light. • A star is born when the gases inside a nebula contract together. Inside the nebula you will find new starts. ...
... together by gravity and is composed of gas and emits light. • A star is born when the gases inside a nebula contract together. Inside the nebula you will find new starts. ...
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.