Introduction to Astronomy
... as 1 millisecond • Also faintly visible at other wavelengths • A few hundred are now known • What are they? Rapidly spinning neutron stars, whose strong magnetic fields accelerate plasma to produce the beam of radio waves ...
... as 1 millisecond • Also faintly visible at other wavelengths • A few hundred are now known • What are they? Rapidly spinning neutron stars, whose strong magnetic fields accelerate plasma to produce the beam of radio waves ...
Hinsdale Astro TEST
... 14. Is this a young star or an old star? Image H 15. Give the proper name of this substellar brown dwarf. 16. What type of radiation does this type of object mainly emit? ...
... 14. Is this a young star or an old star? Image H 15. Give the proper name of this substellar brown dwarf. 16. What type of radiation does this type of object mainly emit? ...
Revolutionary Times: Copernicus and Tycho Brahe
... before Star B, then Star A is to the West of Star B (by a measurable amount, given by the difference in time). (The third coordinate, the star’s distance from us, is ...
... before Star B, then Star A is to the West of Star B (by a measurable amount, given by the difference in time). (The third coordinate, the star’s distance from us, is ...
2007-8 Astronomy Outline
... **Night Sky Journal Entry 1 Example** Date: Time: (try to go out around the same time each night) Light Conditions: (here is where you state how dark it is; cloud cover; how much light is coming in from other houses aka light pollution) Location: where you are and the direction you are facing Observ ...
... **Night Sky Journal Entry 1 Example** Date: Time: (try to go out around the same time each night) Light Conditions: (here is where you state how dark it is; cloud cover; how much light is coming in from other houses aka light pollution) Location: where you are and the direction you are facing Observ ...
Ursa Major, the Great Bear
... M81 belongs to a group of galaxies known as the M81 Group with it as the brightest member. M81 has a well-defined spiral arms surrounding a bright central mass of stars. M81 sometimes is called the Bode's Galaxy because it was originally discovered by Johann Elert Bode, in 1774. M81 can be found b ...
... M81 belongs to a group of galaxies known as the M81 Group with it as the brightest member. M81 has a well-defined spiral arms surrounding a bright central mass of stars. M81 sometimes is called the Bode's Galaxy because it was originally discovered by Johann Elert Bode, in 1774. M81 can be found b ...
MIDTERM #1 AST209 - The Cosmos Feb 10, 2012 50 minutes
... D) It is impossible to say with only the information provided E) The one with the higher mass. 29. Why is it summer in the Northern Hemisphere when it is winter in the Southern Hemisphere? A) The Northern Hemisphere is tilted away from the Sun and receives more indirect sunlight. B) The Northern Hem ...
... D) It is impossible to say with only the information provided E) The one with the higher mass. 29. Why is it summer in the Northern Hemisphere when it is winter in the Southern Hemisphere? A) The Northern Hemisphere is tilted away from the Sun and receives more indirect sunlight. B) The Northern Hem ...
the california planet survey. i. four new giant exoplanets
... * The host star, HD 13931, is also similar to the Sun in mass (M= 1.02 M⊙) and metallicity. HD 13931 b is one of only four known RV-detected planets with orbital periods longer than 10 yr. The other such planets are all in multi-planet systems. GJ 179 b * Is a Jovian-mass (M sin i = 0.82 MJup ) plan ...
... * The host star, HD 13931, is also similar to the Sun in mass (M= 1.02 M⊙) and metallicity. HD 13931 b is one of only four known RV-detected planets with orbital periods longer than 10 yr. The other such planets are all in multi-planet systems. GJ 179 b * Is a Jovian-mass (M sin i = 0.82 MJup ) plan ...
M = 5.5 - The Millstone
... Absolute Magnitude, we must have a measure of the stellar distance (by other means). Absolute magnitude, M, expresses the brightness of a star as it would be if it were placed 10 parsecs away. Since all stars would be placed at the same distance, absolute magnitudes show differences in actual lumino ...
... Absolute Magnitude, we must have a measure of the stellar distance (by other means). Absolute magnitude, M, expresses the brightness of a star as it would be if it were placed 10 parsecs away. Since all stars would be placed at the same distance, absolute magnitudes show differences in actual lumino ...
Ages of Star Clusters - Indiana University Astronomy
... sequence sooner. In a cluster in which all the stars formed at the same time, the stars “peel off” the main sequence from the top, leaving only progressively less and less massive stars remaining on the main sequence as time goes by. The main sequence turnoff is the point on the main sequence for wh ...
... sequence sooner. In a cluster in which all the stars formed at the same time, the stars “peel off” the main sequence from the top, leaving only progressively less and less massive stars remaining on the main sequence as time goes by. The main sequence turnoff is the point on the main sequence for wh ...
1 Star Formation and Main Sequence Evolution Condensation
... but fragments into clumps with a range of masses ...
... but fragments into clumps with a range of masses ...
Which object is closest to Earth
... between Mars and Jupiter. Each dust particle dates back to the days when our solar system was created. So in a way, each tiny speck of dust holds clues to how our solar system formed. All the space dust produced by comets and asteroids in our solar system is drawn to the Sun by its gravitational for ...
... between Mars and Jupiter. Each dust particle dates back to the days when our solar system was created. So in a way, each tiny speck of dust holds clues to how our solar system formed. All the space dust produced by comets and asteroids in our solar system is drawn to the Sun by its gravitational for ...
Black Hole
... A self-luminous celestial body consisting of a mass of gas held together by its own gravity in which the energy generated by nuclear reactions in the interior is balanced by the outflow of energy to the surface, and the inwarddirected gravitational forces are balanced by the outward-directed gas and ...
... A self-luminous celestial body consisting of a mass of gas held together by its own gravity in which the energy generated by nuclear reactions in the interior is balanced by the outflow of energy to the surface, and the inwarddirected gravitational forces are balanced by the outward-directed gas and ...
Finding Black Holes
... What We Have Learned In the MACHO project, astronomers monitored the behviour of about 12 million stars over the span of a decade or so. About a dozen certain microlensing events were detected (plus lots of previously unknown variable stars, a rich byproduct). This allowed the astronomers involved ...
... What We Have Learned In the MACHO project, astronomers monitored the behviour of about 12 million stars over the span of a decade or so. About a dozen certain microlensing events were detected (plus lots of previously unknown variable stars, a rich byproduct). This allowed the astronomers involved ...
Finding Black Holes Left Behind by Single Stars
... behviour of about 12 million stars over the span of a decade or so. About a dozen certain microlensing events were detected (plus lots of previously unknown variable stars, a rich byproduct). This allowed the astronomers involved to set some interesting limits on the numbers of black holes in the ha ...
... behviour of about 12 million stars over the span of a decade or so. About a dozen certain microlensing events were detected (plus lots of previously unknown variable stars, a rich byproduct). This allowed the astronomers involved to set some interesting limits on the numbers of black holes in the ha ...
I CAN SEE THE STARS IN YOUR EYES
... Your space craft begins to travel at the speed of light, taking you towards the sun. Traveling at this speed, the trip from Earth to the sun, a distance of 93 million miles, would take about 8 minutes, not very long for such a long trip! Yet, to get to the next closest star, Proxima Centauri, would ...
... Your space craft begins to travel at the speed of light, taking you towards the sun. Traveling at this speed, the trip from Earth to the sun, a distance of 93 million miles, would take about 8 minutes, not very long for such a long trip! Yet, to get to the next closest star, Proxima Centauri, would ...
![Lectures 10 & 11 powerpoint (stellar formation) [movie below]](http://s1.studyres.com/store/data/008083226_1-fec717da713794a7feea61d4eec0ceb1-300x300.png)
Lectures 10 & 11 powerpoint (stellar formation) [movie below]
... Infrared observations reveal the presence of cool, dusty gas. ...
... Infrared observations reveal the presence of cool, dusty gas. ...
Extrasolar planets
... First detection of any carbon-bearing molecule on a planet outside the Solar System! Swain et al., Nature, March 2008 Also confirmed previous discovery of water on this planet ...
... First detection of any carbon-bearing molecule on a planet outside the Solar System! Swain et al., Nature, March 2008 Also confirmed previous discovery of water on this planet ...
Russell County Schools Non-Traditional Instructional Expectations
... *Students will be contacted by a teacher on each NTI Day using the phone number provided on the Student Data Sheet. Please ensure that any changes in phone numbers are reported to the school throughout the year. ...
... *Students will be contacted by a teacher on each NTI Day using the phone number provided on the Student Data Sheet. Please ensure that any changes in phone numbers are reported to the school throughout the year. ...
Exercise 9
... Introduction: By looking at an apparently flat background of stars at night or at a star chart printed on a page, we often forget about the three-dimensional nature of the universe. In this exercise, you will construct (with welding rods and Styrofoam balls) a model of nearby space including many of ...
... Introduction: By looking at an apparently flat background of stars at night or at a star chart printed on a page, we often forget about the three-dimensional nature of the universe. In this exercise, you will construct (with welding rods and Styrofoam balls) a model of nearby space including many of ...
Quiz Maker - Geneva 304
... 85. What is wavelength? 86. What are the types of radiation that are just lower and just higher in wavelength than visible light? 87. The colors of the visible spectrum are represented by the acronym ROY G BV. What does this stand for? 88. Using what we know about the Doppler Effect, a train coming ...
... 85. What is wavelength? 86. What are the types of radiation that are just lower and just higher in wavelength than visible light? 87. The colors of the visible spectrum are represented by the acronym ROY G BV. What does this stand for? 88. Using what we know about the Doppler Effect, a train coming ...
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. ...
Lecture 5: The H-R diagram, standard candles and cosmic distances
... systems in which the two stars are close together • Some binaries can be detected and analysed, even though the two star images cannot be resolved • A spectrum binary appears to be a single star but has a spectrum with the absorption lines for two distinctly different spectral types • A spectrosc ...
... systems in which the two stars are close together • Some binaries can be detected and analysed, even though the two star images cannot be resolved • A spectrum binary appears to be a single star but has a spectrum with the absorption lines for two distinctly different spectral types • A spectrosc ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.