Stars
... It is about 2,100 times larger than the sun. It would fit about 9,261,000,000 suns in it. The smallest star known is the OGLE-TR-122B it is 12 solar radii. • That is about 167,ooo km (kilometers). ...
... It is about 2,100 times larger than the sun. It would fit about 9,261,000,000 suns in it. The smallest star known is the OGLE-TR-122B it is 12 solar radii. • That is about 167,ooo km (kilometers). ...
Constellations, Star Names, and Magnitudes
... names designated by the International Astronomical Union official, but the IAU has no true legal authority to name stars (or demote planets, for that matter). Companies that sell star names as gifts are a SCAM! ...
... names designated by the International Astronomical Union official, but the IAU has no true legal authority to name stars (or demote planets, for that matter). Companies that sell star names as gifts are a SCAM! ...
Astronomy Part 2 - Malvern Troop 7
... runs a distinctive line of three stars comprising Orion’s Belt. To the top right of Orion lies another prominent star, Alderbaran, which represents the eye of Taurus. Continue the line from Orion through Aldebaran brings you to the Pleiades, a star cluster. ...
... runs a distinctive line of three stars comprising Orion’s Belt. To the top right of Orion lies another prominent star, Alderbaran, which represents the eye of Taurus. Continue the line from Orion through Aldebaran brings you to the Pleiades, a star cluster. ...
The Sky - HiSPARC
... the University of Bristol to be exact.1 In this notation the number of degrees North (52) can be easily recognised. The second number in the first set (27) is the number of (arc)minutes. Like an hour, a degree can be divided into 60 (arc)minutes. You can now probably guess what the third number is, ...
... the University of Bristol to be exact.1 In this notation the number of degrees North (52) can be easily recognised. The second number in the first set (27) is the number of (arc)minutes. Like an hour, a degree can be divided into 60 (arc)minutes. You can now probably guess what the third number is, ...
Constellation, Star, and Deep Sky Object
... around the sun. 1 parsec = 3.262 light years Distance in astronomy is measured in light years, parsecs, or astronomical units. Metric prefix for AU and parsec, time for light-based. Deep Sky Objects Pulsar – supernova remnant ≈ 20 miles across with mass of 2-3 times our sun and composed completely o ...
... around the sun. 1 parsec = 3.262 light years Distance in astronomy is measured in light years, parsecs, or astronomical units. Metric prefix for AU and parsec, time for light-based. Deep Sky Objects Pulsar – supernova remnant ≈ 20 miles across with mass of 2-3 times our sun and composed completely o ...
Life Cycles of Stars
... Stars • Stars appear identical all over Earth • They do show slight parallax shift from opposite sides of Earth’s orbit ...
... Stars • Stars appear identical all over Earth • They do show slight parallax shift from opposite sides of Earth’s orbit ...
Document
... • How do we know the distance to stars and clusters in our galaxy? • Trigonometric parallax good out to 100 pc. • We believe galaxy is ~30 kpc wide. • How do we know? ...
... • How do we know the distance to stars and clusters in our galaxy? • Trigonometric parallax good out to 100 pc. • We believe galaxy is ~30 kpc wide. • How do we know? ...
Milky Way
... • From variable stars we know distances. • From Doppler shift we know rotation velocity. • Use Kepler’s Third Law (again) to get mass of the Milky Way. More than what we see. • M = 1011 x Msun ...
... • From variable stars we know distances. • From Doppler shift we know rotation velocity. • Use Kepler’s Third Law (again) to get mass of the Milky Way. More than what we see. • M = 1011 x Msun ...
Distance to Stars
... same distance from Earth in the night sky. • How do we know that they are not? – Parallax • Is the apparent change in position of an object when you look at it from different positions. ...
... same distance from Earth in the night sky. • How do we know that they are not? – Parallax • Is the apparent change in position of an object when you look at it from different positions. ...
11.1 Stars - St John Brebeuf
... in an obscure galaxy in the constellation Hercules. Never before have astronomers observed two of these powerful stellar explosions occurring in the same galaxy so close together in time. ...
... in an obscure galaxy in the constellation Hercules. Never before have astronomers observed two of these powerful stellar explosions occurring in the same galaxy so close together in time. ...
TU Muscae and the Early-type Overcontact Binaries
... Binary orbital plane is oriented so that the two stars pass in front of one another as seen from Earth. The light curve is rich in information about the two stars. ...
... Binary orbital plane is oriented so that the two stars pass in front of one another as seen from Earth. The light curve is rich in information about the two stars. ...
Shapes in the Sky
... 1. Practice seeing constellations without the lines by punching out holes in an opaque sheet of construction paper and putting them on a overhead transparency projector. What different things does your class see? Start out simple with triangles and squares. “How many dots does it take to make a tria ...
... 1. Practice seeing constellations without the lines by punching out holes in an opaque sheet of construction paper and putting them on a overhead transparency projector. What different things does your class see? Start out simple with triangles and squares. “How many dots does it take to make a tria ...
Study Guide - Experience Astronomy
... The Galilean Moons -‐ four largest moons of Jupiter: Europa, Io, Callisto, and Ganymede Geocentric Model – a model or understanding of the universe where the Earth is at the center, and the sun, moon, planets and stars revolve around the Earth Horizon – ...
... The Galilean Moons -‐ four largest moons of Jupiter: Europa, Io, Callisto, and Ganymede Geocentric Model – a model or understanding of the universe where the Earth is at the center, and the sun, moon, planets and stars revolve around the Earth Horizon – ...
The Life Cycle of Stars
... For stars tens of times more massive than the sun, the outer layers of the star explode outwards (supernova: a stellar explosion that occurs at the end of a massive star’s life) After the explosion, the core left behind becomes a neutron star (the gravity of a neutron star is 300000times that of Ear ...
... For stars tens of times more massive than the sun, the outer layers of the star explode outwards (supernova: a stellar explosion that occurs at the end of a massive star’s life) After the explosion, the core left behind becomes a neutron star (the gravity of a neutron star is 300000times that of Ear ...
29.2 - Stars - s3.amazonaws.com
... • As stars evolve they begin to fuse Helium and burn hydrogen – High mass stars burn Hydrogen faster than low mass stars ...
... • As stars evolve they begin to fuse Helium and burn hydrogen – High mass stars burn Hydrogen faster than low mass stars ...
File
... Cosmic wreckage from the detonation of a massive star is the subject of this official first image from NASA's Chandra X-ray Observatory. ...
... Cosmic wreckage from the detonation of a massive star is the subject of this official first image from NASA's Chandra X-ray Observatory. ...
P10263v1.2 Lab 5 Text
... sky during the spring, there is a small asterism known as “The Pleiades”, which marks the location of a cluster of stars. In legend, the Pleiades are the seven sisters, daughters of Atlas, the titan who holds up the sky, and the Oceanid named Pleione. The sisters are Alcyone, Maia, Electra, Taygeta, ...
... sky during the spring, there is a small asterism known as “The Pleiades”, which marks the location of a cluster of stars. In legend, the Pleiades are the seven sisters, daughters of Atlas, the titan who holds up the sky, and the Oceanid named Pleione. The sisters are Alcyone, Maia, Electra, Taygeta, ...
The night sky in October and November
... It alternately fades and shines brightly. In 1572 an astronomer named Tycho Brahe saw a new bright star near Cassiopeia, and called it a “nova” or new. It only lasted a few days. He thought he had witnessed the first instance of this phenomenon. He was wrong as several other civilizations saw the sa ...
... It alternately fades and shines brightly. In 1572 an astronomer named Tycho Brahe saw a new bright star near Cassiopeia, and called it a “nova” or new. It only lasted a few days. He thought he had witnessed the first instance of this phenomenon. He was wrong as several other civilizations saw the sa ...
characteristics of stars
... the disk. In the central bulge, the stars are so numerous that they appear very close even though they are separated by large distance. Most of the stars outside the bulge are arranged in long ____________, called _________ which curve around the bulge. The entire Milky Way rotates around this bulge ...
... the disk. In the central bulge, the stars are so numerous that they appear very close even though they are separated by large distance. Most of the stars outside the bulge are arranged in long ____________, called _________ which curve around the bulge. The entire Milky Way rotates around this bulge ...
1 au d p = 1 au d
... Starting from the observed luminosity function, possible to derive an estimate for the Initial Mass Function (IMF). To define the IMF, imagine that we form a large number of stars. Then: the number of stars that have been x (M)DM = born with initial masses between M and M+DM (careful not to confuse ...
... Starting from the observed luminosity function, possible to derive an estimate for the Initial Mass Function (IMF). To define the IMF, imagine that we form a large number of stars. Then: the number of stars that have been x (M)DM = born with initial masses between M and M+DM (careful not to confuse ...
Activity 4
... There are a number of ways to measure distances to stars and galaxies. One of the most important methods for measuring stellar distances is parallax. Parallax is the apparent motion of stars as ...
... There are a number of ways to measure distances to stars and galaxies. One of the most important methods for measuring stellar distances is parallax. Parallax is the apparent motion of stars as ...
Word
... In recent years radio astronomers have tracked the angular position of the supermassive black hole (aka, Sgr A*) located at the center of our Milky Way galaxy with respect to a very distant, fixed background of quasars. That location seems to move because of the Sun’s orbital motion in our galaxy. I ...
... In recent years radio astronomers have tracked the angular position of the supermassive black hole (aka, Sgr A*) located at the center of our Milky Way galaxy with respect to a very distant, fixed background of quasars. That location seems to move because of the Sun’s orbital motion in our galaxy. I ...
No Slide Title
... collapses inward. This compression rapidly heats the gases to billions of degrees. This creates a huge explosion… ...
... collapses inward. This compression rapidly heats the gases to billions of degrees. This creates a huge explosion… ...
Great Astronomers of the 20th Century
... Jill Tarter • Joint appointment at UC Berkeley and SETI ...
... Jill Tarter • Joint appointment at UC Berkeley and SETI ...
Solutions2
... at different distances from us. Star A has parallax 10−3 ”, and radius 108 m. It appears 25 times brighter than Star B. a) What are the distances to stars A and B? Star A has d=1/p”=1000 parsecs. Star B is 25 times fainter, so must be 5 times farther away (inverse square law), 5000 parsecs. b) Star ...
... at different distances from us. Star A has parallax 10−3 ”, and radius 108 m. It appears 25 times brighter than Star B. a) What are the distances to stars A and B? Star A has d=1/p”=1000 parsecs. Star B is 25 times fainter, so must be 5 times farther away (inverse square law), 5000 parsecs. b) 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.