Differential photometry of delta Scuti stars on Maidanak Observatory
... Abstract Several delta Scuti stars (V350 Peg, V2455 Cyg, V459 Cep) were observed on Maidanak observatory in Uzbekistan in frame of Russian-Uzbek scientific collaboration on asteroseismology. Differential photometry data were obtained on two 60 cm telescopes using CCD. These are pilot observation aimed ...
... Abstract Several delta Scuti stars (V350 Peg, V2455 Cyg, V459 Cep) were observed on Maidanak observatory in Uzbekistan in frame of Russian-Uzbek scientific collaboration on asteroseismology. Differential photometry data were obtained on two 60 cm telescopes using CCD. These are pilot observation aimed ...
“Beautiful and cantankerous instruments”: telescopes, technology
... These new tools slowly helped re-define the astronomer’s interaction with the telescope. Things like auto-guiders and image intensifiers made observations easier and more efficient. But the telescope’s complexity increased because now astronomers had to modify all the things that they used to do by ...
... These new tools slowly helped re-define the astronomer’s interaction with the telescope. Things like auto-guiders and image intensifiers made observations easier and more efficient. But the telescope’s complexity increased because now astronomers had to modify all the things that they used to do by ...
d - Haus der Astronomie
... By averaging, we find the approximate distance to the Andromeda Galaxy: (2,52 ± 0,14) 10 lyly ...
... By averaging, we find the approximate distance to the Andromeda Galaxy: (2,52 ± 0,14) 10 lyly ...
25 light years from Earth, there`s a planet about the size of our own
... The star is a pulsar, PSR 1257+12, the seething-hot core of a supernova that exploded millions of years ago. Its planets are bathed not in gentle, life-giving sunshine but instead a blistering torrent of X-rays and high-energy particles. "It would be like trying to live next to Chernobyl," says Char ...
... The star is a pulsar, PSR 1257+12, the seething-hot core of a supernova that exploded millions of years ago. Its planets are bathed not in gentle, life-giving sunshine but instead a blistering torrent of X-rays and high-energy particles. "It would be like trying to live next to Chernobyl," says Char ...
a new era in astronomical imaging and telescope control
... This exciting new package includes the following features and more* for only ...
... This exciting new package includes the following features and more* for only ...
Big bang and Stars
... Energy released from nuclear fusion counteracts inward force of gravity. Throughout its life, these two forces determine the stages of a star’s life. ...
... Energy released from nuclear fusion counteracts inward force of gravity. Throughout its life, these two forces determine the stages of a star’s life. ...
ppt document - FacStaff Home Page for CBU
... observers will measure different times, distances and masses based on the observers’ relative speeds. In particular, lifetimes and masses of particles differ if they are stationary compared to when they are moving. These effects are only noticeable as the speeds approach the speed of light (~670 mil ...
... observers will measure different times, distances and masses based on the observers’ relative speeds. In particular, lifetimes and masses of particles differ if they are stationary compared to when they are moving. These effects are only noticeable as the speeds approach the speed of light (~670 mil ...
ASTR220 Collisions in Space
... Early days of X-ray astronomy. Crude X-ray observatories placed on rockets (get few minutes of data while rocket above atmosphere). ...
... Early days of X-ray astronomy. Crude X-ray observatories placed on rockets (get few minutes of data while rocket above atmosphere). ...
Stars Part 2 - westscidept
... • Absolute magnitude is a measure of how bright a star would be if the star were 32.6 light-years away from Earth. • The absolute magnitude of the sun is +4.8. But because the sun is so close to Earth, its apparent magnitude is -26.8, which makes it the brightest object in the sky. ...
... • Absolute magnitude is a measure of how bright a star would be if the star were 32.6 light-years away from Earth. • The absolute magnitude of the sun is +4.8. But because the sun is so close to Earth, its apparent magnitude is -26.8, which makes it the brightest object in the sky. ...
The Stellar Luminosity Function
... gives the distances in light years, the formula had to be modified to M =m+5-5 logD/3.26 . Th e absolute magnitudes were then rounded to the nearest whole magnitude and then plotted. (See fig.1 .) The sun's absolute magnitude is 4.8. It can be seen readily that there are only 3 stars within the 16 l ...
... gives the distances in light years, the formula had to be modified to M =m+5-5 logD/3.26 . Th e absolute magnitudes were then rounded to the nearest whole magnitude and then plotted. (See fig.1 .) The sun's absolute magnitude is 4.8. It can be seen readily that there are only 3 stars within the 16 l ...
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 ...
Milky Way
... would have sitting inside a disk of stars. – Consistent with the Sun towards an edge ...
... would have sitting inside a disk of stars. – Consistent with the Sun towards an edge ...
PDF copy
... years away from the earth. It contains a supergiant star, about 25 times as massive as our Sun, and a compressed dead partn about twice as massive as the Sun but compressed to a diameter of just about 30 km. the stars orbit around each other in 4.9 ...
... years away from the earth. It contains a supergiant star, about 25 times as massive as our Sun, and a compressed dead partn about twice as massive as the Sun but compressed to a diameter of just about 30 km. the stars orbit around each other in 4.9 ...
How do stars form?
... • Radiant energy produced by fusion causes the star to expand. • Gravity holds the star together. • Gas pressure/radiant energy is balanced by gravity, so the star is stable. • The Hertzsprung-Russell (H-R) Diagram shows these stars as the main sequence. ...
... • Radiant energy produced by fusion causes the star to expand. • Gravity holds the star together. • Gas pressure/radiant energy is balanced by gravity, so the star is stable. • The Hertzsprung-Russell (H-R) Diagram shows these stars as the main sequence. ...
Name the eight planets in order by increasing distance from the sun:
... comets are? A:Oort Cloud 18-Nearly all the mass of our solar system is where? A:the Sun 19-The distance between stars is measured using what unit? A: Light-Years 20-If there is a red shift in a galaxies spectrum in which way is the galaxy moving from Earth? A: Away 21-What are the three stipulations ...
... comets are? A:Oort Cloud 18-Nearly all the mass of our solar system is where? A:the Sun 19-The distance between stars is measured using what unit? A: Light-Years 20-If there is a red shift in a galaxies spectrum in which way is the galaxy moving from Earth? A: Away 21-What are the three stipulations ...
Chapter 28 – Stars and Galaxies
... 1. Mass is something that can not be observed directly. It can only be calculated based on other observations 2. Stellar mass is expressed as multiples of the sun’s mass Betelgeuse’s mass – 20 solar masses F. Temperature and Color 1. Blue stars are hot 2. Red stars are cool G. Luminosity 1. The ac ...
... 1. Mass is something that can not be observed directly. It can only be calculated based on other observations 2. Stellar mass is expressed as multiples of the sun’s mass Betelgeuse’s mass – 20 solar masses F. Temperature and Color 1. Blue stars are hot 2. Red stars are cool G. Luminosity 1. The ac ...
Multiple choice test questions 1, Winter Semester
... 7) Suppose you use the Southern Cross to determine that the south celestial pole appears 40 degrees above your horizon. Then you must be located at ________. A) latitude 40 degrees north B) latitude 50 degrees south C) latitude 40 degrees south D) longitude 40 degrees 8) During the period each year ...
... 7) Suppose you use the Southern Cross to determine that the south celestial pole appears 40 degrees above your horizon. Then you must be located at ________. A) latitude 40 degrees north B) latitude 50 degrees south C) latitude 40 degrees south D) longitude 40 degrees 8) During the period each year ...
Regents Earth Science – Unit 5: Astronomy
... the Sun produces energy by the process of nuclear fusion in its core the sun’s outer atmosphere “the corona” can be seen during a total solar eclipse the Sun has sunspots (cooler, dark in color) - spots associated with the its magnetic field these increase and decrease in a cyclic pattern the sun al ...
... the Sun produces energy by the process of nuclear fusion in its core the sun’s outer atmosphere “the corona” can be seen during a total solar eclipse the Sun has sunspots (cooler, dark in color) - spots associated with the its magnetic field these increase and decrease in a cyclic pattern the sun al ...
Binocular Universe: Bikini Bottom
... impresses me more as the bottom half of a bikini than a "sea-goat (whatever that is) plays host to brilliant Jupiter. The king of the planets draws the attention of everyone from all quarters to the wet quarter, whether you're in the heart of a city or somewhere out in the rural countryside. Binocul ...
... impresses me more as the bottom half of a bikini than a "sea-goat (whatever that is) plays host to brilliant Jupiter. The king of the planets draws the attention of everyone from all quarters to the wet quarter, whether you're in the heart of a city or somewhere out in the rural countryside. Binocul ...
Introduction to the Solar System
... The distance between stars (and galaxies) is HUGE so we measure it in light years. Light Years is the distance light will travel in a year **very important**: a light year is not a time, but a distance! ...
... The distance between stars (and galaxies) is HUGE so we measure it in light years. Light Years is the distance light will travel in a year **very important**: a light year is not a time, but a distance! ...
The Dual Nature of Light
... • GMT - 7x8.4m=24.5m in Chile, CA, Harvard, Texas, Arizona, Chicago, Australia, Korea ...
... • GMT - 7x8.4m=24.5m in Chile, CA, Harvard, Texas, Arizona, Chicago, Australia, Korea ...
University Lowbrow Astronomers Visit
... What does a telescope do? (Two functions: gather light and magnify.) Why do astronomers use telescopes? (Galileo used a telescope to look at the night sky 400 years ago.) How does a reflector telescope work? (By reflecting light with a mirror.) Students will be divided into several equal groups; one ...
... What does a telescope do? (Two functions: gather light and magnify.) Why do astronomers use telescopes? (Galileo used a telescope to look at the night sky 400 years ago.) How does a reflector telescope work? (By reflecting light with a mirror.) Students will be divided into several equal groups; one ...
Fingerprints in Sunlight
... No matter how good your telescope, a star is only a point of light We can’t get there from here Only/primary way of learning about distant objects is through their light (electromagnetic spectrum) Light has ‘fingerprints” which provide information about it How can we “read” these fingerprints and wh ...
... No matter how good your telescope, a star is only a point of light We can’t get there from here Only/primary way of learning about distant objects is through their light (electromagnetic spectrum) Light has ‘fingerprints” which provide information about it How can we “read” these fingerprints and wh ...
Slide 1
... Royal Society in 1666, "a system of the world very different from any yet received. It is founded on the following positions. 1. That all the heavenly bodies have not only a gravitation of their parts to their own proper centre, but that they also mutually attract each other within their spheres of ...
... Royal Society in 1666, "a system of the world very different from any yet received. It is founded on the following positions. 1. That all the heavenly bodies have not only a gravitation of their parts to their own proper centre, but that they also mutually attract each other within their spheres of ...
International Ultraviolet Explorer
The International Ultraviolet Explorer (IUE) was an astronomical observatory satellite primarily designed to take ultraviolet spectra. The satellite was a collaborative project between NASA, the UK Science Research Council and the European Space Agency (ESA). The mission was first proposed in early 1964, by a group of scientists in the United Kingdom, and was launched on January 26, 1978 aboard a NASA Delta rocket. The mission lifetime was initially set for 3 years, but in the end it lasted almost 18 years, with the satellite being shut down in 1996. The switch-off occurred for financial reasons, while the telescope was still functioning at near original efficiency.It was the first space observatory to be operated in real time by astronomers who visited the groundstations in the United States and Europe. Astronomers made over 104,000 observations using the IUE, of objects ranging from solar system bodies to distant quasars. Among the significant scientific results from IUE data were the first large scale studies of stellar winds, accurate measurements of the way interstellar dust absorbs light, and measurements of the supernova SN1987A which showed that it defied stellar evolution theories as they then stood. When the mission ended, it was considered the most successful astronomical satellite ever.