AWG recommendation on Cosmic Vision
... After the first discovery of an extra-solar planet in 1995, there has been steady progress towards detecting planets with ever smaller masses, and towards the development of a broader suite of techniques to characterize their properties. There is no doubt that this trend will continue into the next ...
... After the first discovery of an extra-solar planet in 1995, there has been steady progress towards detecting planets with ever smaller masses, and towards the development of a broader suite of techniques to characterize their properties. There is no doubt that this trend will continue into the next ...
Stellarium Astronomy Software
... the stars near them. Use the constellations to guide you to the dimmer stars that can easily escape the casual observer. For easier star-watching, you will need to give your eyes time to adjust to the darkness. Astronomers call this becoming darkness adapted. You will see best after about 20 minutes ...
... the stars near them. Use the constellations to guide you to the dimmer stars that can easily escape the casual observer. For easier star-watching, you will need to give your eyes time to adjust to the darkness. Astronomers call this becoming darkness adapted. You will see best after about 20 minutes ...
The Sun
... – A binary star is two stars that are gravitationally bound together and that orbit a common center of mass. – More than half of the stars in the sky are either binary stars or members of multiple-star systems. – Astronomers are able to identify binary stars through several methods. • Accurate measu ...
... – A binary star is two stars that are gravitationally bound together and that orbit a common center of mass. – More than half of the stars in the sky are either binary stars or members of multiple-star systems. – Astronomers are able to identify binary stars through several methods. • Accurate measu ...
Terrestrial Planets
... This effect was used by Sir Arthur Eddington in 1919 to provide the first empirical evidence for General Relativity. In reality, even the most powerful Earth-bound telescope cannot resolve the separate images of the source star and the lensing star between them, seeing instead a single giant disk of ...
... This effect was used by Sir Arthur Eddington in 1919 to provide the first empirical evidence for General Relativity. In reality, even the most powerful Earth-bound telescope cannot resolve the separate images of the source star and the lensing star between them, seeing instead a single giant disk of ...
Volume 4 (Issue 3), March 2015
... photograph – the earliest really good picture, of an Andromedid, was taken by L. Weinek, from Prague, as long ago as 27 November 1885 – but meteor spectra are much more difficult, because one never knows Page no. 02 ...
... photograph – the earliest really good picture, of an Andromedid, was taken by L. Weinek, from Prague, as long ago as 27 November 1885 – but meteor spectra are much more difficult, because one never knows Page no. 02 ...
Classification_of_Stars_By_Luminosity
... produced by the star but is simply a measure of how bright it appears to be from Earth. • (Some bright stars are simply close neighbours while other giant stars may appear equally bright but are also very distant.) ...
... produced by the star but is simply a measure of how bright it appears to be from Earth. • (Some bright stars are simply close neighbours while other giant stars may appear equally bright but are also very distant.) ...
Powerpoint
... The stars Vega and Sirius are brighter than the Sun, and also hotter. Where would you put them? Where would you mark the Sun on the plot? ...
... The stars Vega and Sirius are brighter than the Sun, and also hotter. Where would you put them? Where would you mark the Sun on the plot? ...
The Night Sky
... Ask the students, “Do the stars move? (No.) “Why can the constellations be seen in different locations at different times of the night?” The stars seem to drift across the sky at night because the Earth is turning on its axis. During each 24-hour period, the part of the Earth you are on turns so tha ...
... Ask the students, “Do the stars move? (No.) “Why can the constellations be seen in different locations at different times of the night?” The stars seem to drift across the sky at night because the Earth is turning on its axis. During each 24-hour period, the part of the Earth you are on turns so tha ...
Planet-finding Activity Guide How do we find planets around other
... • All the other methods we’ve looked at detect some kind of a change in the star. Why do you think we can’t see the planets directly? • [Typical answers: too dim, too far away, too small, too close to the star, star is too bright] • [TIP: Many people do not understand how small planets are ...
... • All the other methods we’ve looked at detect some kind of a change in the star. Why do you think we can’t see the planets directly? • [Typical answers: too dim, too far away, too small, too close to the star, star is too bright] • [TIP: Many people do not understand how small planets are ...
Constellations - Mayo Dark Sky Park
... firing the arrow that killed Orion. The story goes like this… Apollo, her jealous brother, observed the giant Orion wading through the sea with his head just above water and challenged Diana to hit the black island in the distance. Diana took fatal aim and discharged the arrow, killing her beloved O ...
... firing the arrow that killed Orion. The story goes like this… Apollo, her jealous brother, observed the giant Orion wading through the sea with his head just above water and challenged Diana to hit the black island in the distance. Diana took fatal aim and discharged the arrow, killing her beloved O ...
The Stars education kit - Student activities 5-10
... expanding and contracting periodically. Astronomers can use the period of the star (or the time it takes to vary) and its luminosity to measure the distance to the star. The nuclear fusion reactions continue until all the helium in the core has been converted to carbon and oxygen. The nuclear reacti ...
... expanding and contracting periodically. Astronomers can use the period of the star (or the time it takes to vary) and its luminosity to measure the distance to the star. The nuclear fusion reactions continue until all the helium in the core has been converted to carbon and oxygen. The nuclear reacti ...
Astronomy Assignment #10 Solutions
... 1. What does a magnitude interval of 5 correspond to in brightness? How about an interval of 1? How about an interval of 3? A magnitude interval of 5 corresponds to a factor of 100 in brightness. A magnitude interval of 1 corresponds to a factor of about 2.5 in brightness. A magnitude interval of 3c ...
... 1. What does a magnitude interval of 5 correspond to in brightness? How about an interval of 1? How about an interval of 3? A magnitude interval of 5 corresponds to a factor of 100 in brightness. A magnitude interval of 1 corresponds to a factor of about 2.5 in brightness. A magnitude interval of 3c ...
26.4 Groups of Stars
... A galaxy is a huge group of individual stars, star systems, star clusters, dust, and gas bound together by gravity. • There are billions of galaxies in the universe. • The largest galaxies consist of more than a trillion stars. Galaxies vary widely in size and ...
... A galaxy is a huge group of individual stars, star systems, star clusters, dust, and gas bound together by gravity. • There are billions of galaxies in the universe. • The largest galaxies consist of more than a trillion stars. Galaxies vary widely in size and ...
SOAR Telescope Photo Gallery
... The spiral galaxy NGC 4622 is located at a distance of about 100 million light-years, in the constellation of Centaurus. It exhibits extremely thin and smooth outer spiral arms, traced by young blue stars. It was recently discovered, by ground based plus Hubble Space Telescope observations, that the ...
... The spiral galaxy NGC 4622 is located at a distance of about 100 million light-years, in the constellation of Centaurus. It exhibits extremely thin and smooth outer spiral arms, traced by young blue stars. It was recently discovered, by ground based plus Hubble Space Telescope observations, that the ...
Deriving the Isoradius Lines (optional, mathematical
... An actual HR Diagram is provided in the upper right panel with an active location indicated by a red x. This active location can be dragged around the diagram. The options panel allows you to control the variables plotted on the x-axis: (temperature, BV, or spectral type) and those plotted on the y- ...
... An actual HR Diagram is provided in the upper right panel with an active location indicated by a red x. This active location can be dragged around the diagram. The options panel allows you to control the variables plotted on the x-axis: (temperature, BV, or spectral type) and those plotted on the y- ...
13.5 The HR Diagram By the early 1900s, astronomers had learned
... (A) The mass–luminosity relation shows that along the main sequence, moremassive stars are more luminous. The law does not work for red giants or white dwarfs. (B) On the HR diagram, highmass stars lie higher on the main sequence than lowmass stars. L = Luminosity of stars in solar units M = Mas ...
... (A) The mass–luminosity relation shows that along the main sequence, moremassive stars are more luminous. The law does not work for red giants or white dwarfs. (B) On the HR diagram, highmass stars lie higher on the main sequence than lowmass stars. L = Luminosity of stars in solar units M = Mas ...
CONSTELLATION URSA MAJOR, THE GREAT
... Being the third largest constellation in the night sky, with 1279.66 square degrees of surface area Ursa Major is home to many deep-sky objects including seven Messier objects, four other NGC objects and I Zwicky 18, the youngest known galaxy in the visible universe. The official constellation bound ...
... Being the third largest constellation in the night sky, with 1279.66 square degrees of surface area Ursa Major is home to many deep-sky objects including seven Messier objects, four other NGC objects and I Zwicky 18, the youngest known galaxy in the visible universe. The official constellation bound ...
constellations - Otterbein University
... - constellation shapes and names - star names and position in constellation - deep sky objects’ names and position • Quiz: You will be asked to find these objects on a star map. ...
... - constellation shapes and names - star names and position in constellation - deep sky objects’ names and position • Quiz: You will be asked to find these objects on a star map. ...
Flatfielding chapter for Calibration Volumes
... The following discussion assumes that we can control the telescope well enough to point it to a particular sub-pixel location reliably. If that is not the case, then we should simply command the telescope to move by a pixel or so between each exposure and take whatever random dithering we get. We wi ...
... The following discussion assumes that we can control the telescope well enough to point it to a particular sub-pixel location reliably. If that is not the case, then we should simply command the telescope to move by a pixel or so between each exposure and take whatever random dithering we get. We wi ...
SOFIA Science - Stratospheric Observatory for Infrared Astronomy
... What does SOFIA do that the Hubble Space Telescope can’t? ...
... What does SOFIA do that the Hubble Space Telescope can’t? ...
Celebrating the centennial of a celestial yardstick
... had abundant volcanic activity (and may have some ongoing activity today), which is involved in concentrating such elements. Yet the amounts of these elements, their distribution, and many other factors are completely unknown. The MESSENGER spacecraft is studying Mercury’s composition from orbit, bu ...
... had abundant volcanic activity (and may have some ongoing activity today), which is involved in concentrating such elements. Yet the amounts of these elements, their distribution, and many other factors are completely unknown. The MESSENGER spacecraft is studying Mercury’s composition from orbit, bu ...
Slide 1
... stars known as Westerlund 1. This cluster contains a hundred thousand or more stars in a region only 30 light years across, which suggests that all the stars were born in a single episode of star formation. Based on optical properties such as brightness and color some of the normal stars in the clus ...
... stars known as Westerlund 1. This cluster contains a hundred thousand or more stars in a region only 30 light years across, which suggests that all the stars were born in a single episode of star formation. Based on optical properties such as brightness and color some of the normal stars in the clus ...