Lecture - Ann Arbor Earth Science
... spectrum of a star that is moving away from the Earth. Notice how the entire pattern of black lines has been shifted toward the red end of the spectrum. If the bottom band had been a star that is moving toward the Earth, then the pattern of black lines would have been shifted toward the blue end of ...
... spectrum of a star that is moving away from the Earth. Notice how the entire pattern of black lines has been shifted toward the red end of the spectrum. If the bottom band had been a star that is moving toward the Earth, then the pattern of black lines would have been shifted toward the blue end of ...
Today`s Powerpoint
... Composition unknown. Probably mostly exotic particles that don't interact with ordinary matter at all (except gravity). Some may be brown dwarfs, dead white dwarfs … Most likely it's a dark halo surrounding the Milky Way. ...
... Composition unknown. Probably mostly exotic particles that don't interact with ordinary matter at all (except gravity). Some may be brown dwarfs, dead white dwarfs … Most likely it's a dark halo surrounding the Milky Way. ...
Galaxies
... Distant galaxies are moving away from our Milky way, with a recession velocity, vr, proportional to their distance d: ...
... Distant galaxies are moving away from our Milky way, with a recession velocity, vr, proportional to their distance d: ...
Document
... study different parts of the interstellar medium? • Although all the Milky Way’s interstellar gas has roughly the same composition — about 70% hydrogen, 28% helium, and 2% heavy elements (by mass) — gas in different stages of the stargas-star cycle produces different kinds of radiation. Molecules in ...
... study different parts of the interstellar medium? • Although all the Milky Way’s interstellar gas has roughly the same composition — about 70% hydrogen, 28% helium, and 2% heavy elements (by mass) — gas in different stages of the stargas-star cycle produces different kinds of radiation. Molecules in ...
Lecture notes on Coordinte systems
... sphere really exists but its useful to have this in mind - a scientific model. • Earth or the observer is at the center of the Celestial sphere. • Dont need to know how far away objects are, just concerned about the angles subtended by these objects on the Earth. • Coordinates on a sphere – A sphere ...
... sphere really exists but its useful to have this in mind - a scientific model. • Earth or the observer is at the center of the Celestial sphere. • Dont need to know how far away objects are, just concerned about the angles subtended by these objects on the Earth. • Coordinates on a sphere – A sphere ...
Life and Death of Stars - UM Research Repository
... they are so hot, the bigger stars actually have shorter live span than the small and cool ones. The life cycles of star depends upon its initial mass and chemical composition. Their life cycles changes in every stages are following y this explanations: Birth of Stars: Stars are born in giant clouds ...
... they are so hot, the bigger stars actually have shorter live span than the small and cool ones. The life cycles of star depends upon its initial mass and chemical composition. Their life cycles changes in every stages are following y this explanations: Birth of Stars: Stars are born in giant clouds ...
Astrobiology: The Search for Extraterrestrial Life
... detections and so typically any exoplanet detected using the transit method requires additional confirmation, usually from the radial-velocity method. The main advantage of using the transit-method is that the size of the planet can be determined from the produced light curve. When combining both th ...
... detections and so typically any exoplanet detected using the transit method requires additional confirmation, usually from the radial-velocity method. The main advantage of using the transit-method is that the size of the planet can be determined from the produced light curve. When combining both th ...
exemplars and commentary
... thought to be 10 billion years old and older than our galaxy. It must have been captured from elsewhere. Bernard’s star is travelling towards us at a very high speed. It will become closer to us than Proxima Centauri. Barnard’s star emits most of its radiation as infrared light and emits almost no u ...
... thought to be 10 billion years old and older than our galaxy. It must have been captured from elsewhere. Bernard’s star is travelling towards us at a very high speed. It will become closer to us than Proxima Centauri. Barnard’s star emits most of its radiation as infrared light and emits almost no u ...
ppt
... M 32 and M 110 are two companion galaxies of M 31. M110 is located one degree northwest of M31 and M32 can be found half a degree south of M31. M32 is a dwarf elliptical galaxy. It requires a substantial amount of magnification to reveal any detail. M110 is a bright E5 elliptical galaxy. ...
... M 32 and M 110 are two companion galaxies of M 31. M110 is located one degree northwest of M31 and M32 can be found half a degree south of M31. M32 is a dwarf elliptical galaxy. It requires a substantial amount of magnification to reveal any detail. M110 is a bright E5 elliptical galaxy. ...
12 The Milky Way - Journigan-wiki
... correctly placed the Sun within the galaxy, but he grossly overestimated the size. Kapteyn came closer to the actual size of our Galaxy. Neither knew of the attenuating effects of interstellar gases. Neither knew that there were two types of variable stars. Looking back at the controversy, it’s funn ...
... correctly placed the Sun within the galaxy, but he grossly overestimated the size. Kapteyn came closer to the actual size of our Galaxy. Neither knew of the attenuating effects of interstellar gases. Neither knew that there were two types of variable stars. Looking back at the controversy, it’s funn ...
Volume 1 (Issue 6), June 2012
... deep space objects including galaxies, nebulae and variable stars are also being initiated. Search for earth like planets is a hot topic in astrophysics nowadays. It is planned to conduct research studies in this field also. ...
... deep space objects including galaxies, nebulae and variable stars are also being initiated. Search for earth like planets is a hot topic in astrophysics nowadays. It is planned to conduct research studies in this field also. ...
Red supergiants and the past of Cygnus OB2
... at infrared wavelengths, with K < 3.6. Several compilations of intrinsic colors of M supergiants can be found in the literature, with published values covering a fairly wide range for a given spectral subtype. Straižys (1987) gave (J − K)0 values ranging from 0.91 to 1.20 in the M0I-M4I range, while ...
... at infrared wavelengths, with K < 3.6. Several compilations of intrinsic colors of M supergiants can be found in the literature, with published values covering a fairly wide range for a given spectral subtype. Straižys (1987) gave (J − K)0 values ranging from 0.91 to 1.20 in the M0I-M4I range, while ...
exo planets
... discovery of an Earth-sized planet orbiting in the Goldilocks Zone of another star. The planet may have the potential for life to exist. The world circles a red dwarf star in the constellation of Cygnus and is about 500 light years away. The planet is known as Kepler 186f and is about 10% larger tha ...
... discovery of an Earth-sized planet orbiting in the Goldilocks Zone of another star. The planet may have the potential for life to exist. The world circles a red dwarf star in the constellation of Cygnus and is about 500 light years away. The planet is known as Kepler 186f and is about 10% larger tha ...
Adrian Zielonka`s Space and Astro notes for May `17
... where the Sun sets and just 4½ degrees above the horizon. On the 27th at 10:00pm, Mars will be 12 degrees to the right and slightly lower than the height of the Moon. The Moon being just 6 degrees above the WNW horizon. An occultation of Regulus by the Moon is on the 31st. It too is in the dayt ...
... where the Sun sets and just 4½ degrees above the horizon. On the 27th at 10:00pm, Mars will be 12 degrees to the right and slightly lower than the height of the Moon. The Moon being just 6 degrees above the WNW horizon. An occultation of Regulus by the Moon is on the 31st. It too is in the dayt ...
Quiz Reviews - Orion Observatory
... 1. How did scientists first look for extrasolar planets? Why were their discoveries false? 2. How were their first extrasolar planets found? Why were scientists less interested in them? 3. How was the first extrasolar planet orbiting a main sequence star found? Who discovered it? Why was this discov ...
... 1. How did scientists first look for extrasolar planets? Why were their discoveries false? 2. How were their first extrasolar planets found? Why were scientists less interested in them? 3. How was the first extrasolar planet orbiting a main sequence star found? Who discovered it? Why was this discov ...
PPT
... (a) is in orbit around the Sun (b) has sufficient mass for its self-gravity to overcome rigid body forces, so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit. ...
... (a) is in orbit around the Sun (b) has sufficient mass for its self-gravity to overcome rigid body forces, so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit. ...
Size and Scale of the Universe
... • Need telescopes with high resolution, and must observe over several years • The Hipparchos satellite measured distances using this method for tens of thousands of stars within 1,500 light-years of the Sun ...
... • Need telescopes with high resolution, and must observe over several years • The Hipparchos satellite measured distances using this method for tens of thousands of stars within 1,500 light-years of the Sun ...
Size and Scale of the Universe
... • Need telescopes with high resolution, and must observe over several years • The Hipparchos satellite measured distances using this method for tens of thousands of stars within 1,500 light-years of the Sun ...
... • Need telescopes with high resolution, and must observe over several years • The Hipparchos satellite measured distances using this method for tens of thousands of stars within 1,500 light-years of the Sun ...
10 Measuring The Stars
... a) distance and surface temperature b) luminosity and surface temperature c) distance and luminosity d) mass and age e) distance and color ...
... a) distance and surface temperature b) luminosity and surface temperature c) distance and luminosity d) mass and age e) distance and color ...
Ursa Minor
Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.