Starwalk Manual En
... If you have an iPhone 3GS/4/4S/5/5s/5c, iPad or iPad mini, tilt your device and the Star Spotter function will be activated. Star Walk™ uses the digital compass to learn which way you are looking. A live representation of what you see in the sky will appear on your display and the sky will start fol ...
... If you have an iPhone 3GS/4/4S/5/5s/5c, iPad or iPad mini, tilt your device and the Star Spotter function will be activated. Star Walk™ uses the digital compass to learn which way you are looking. A live representation of what you see in the sky will appear on your display and the sky will start fol ...
Astro 102 Practice Test 3
... 8. As a star begin to form the initial energy source is from a. nuclear fusion. b. nuclear fission. c. gravitational potential energy. d. magnetic fields. 9. The energy emitted from the surface of a main sequence star is ____ the energy generated in the core. a. greater than b. less than c. equal to ...
... 8. As a star begin to form the initial energy source is from a. nuclear fusion. b. nuclear fission. c. gravitational potential energy. d. magnetic fields. 9. The energy emitted from the surface of a main sequence star is ____ the energy generated in the core. a. greater than b. less than c. equal to ...
POSTERS SESSION I: Atmospheres of Massive Stars
... rate of massive stars to trace their evolutionary tracks adequately. The rotational velocity of OB stars can be directly measured from the Doppler broadening of their photospheric lines. In Wolf-Rayet (WR) stars, however, such measurements are impossible, since their continuum emission is formed in ...
... rate of massive stars to trace their evolutionary tracks adequately. The rotational velocity of OB stars can be directly measured from the Doppler broadening of their photospheric lines. In Wolf-Rayet (WR) stars, however, such measurements are impossible, since their continuum emission is formed in ...
Word - Stefan`s Florilegium
... work performed on a mass by gravity, and celestial devices that relied upon the regularity of the rotation of the earth about the sun and its own axis. When studying the development of time keeping it is also illuminating to ask the question why time keeping devices were even considered necessary at ...
... work performed on a mass by gravity, and celestial devices that relied upon the regularity of the rotation of the earth about the sun and its own axis. When studying the development of time keeping it is also illuminating to ask the question why time keeping devices were even considered necessary at ...
The Galactic evolution of phosphorus
... therein). This is not the case for phosphorus, that, before this work, had never been analysed systematically in cool stars. The reason why was already given by Struve (1930): no P i line is available in the “ordinary” range of the observed spectra of stars of spectral type F, G, or K. Some P ii and ...
... therein). This is not the case for phosphorus, that, before this work, had never been analysed systematically in cool stars. The reason why was already given by Struve (1930): no P i line is available in the “ordinary” range of the observed spectra of stars of spectral type F, G, or K. Some P ii and ...
How to Build an Astrolabe
... Deneb (α Cygni): the brightest star in the constellation of Cygnus, the Swan. Its names comes from the Arabic for “tail”. Other traditional names included Arided, Aridif and Gallina. Procyon (α Canis Minoris): the seventh brightest star in the sky, and the brightest star in the small constellation o ...
... Deneb (α Cygni): the brightest star in the constellation of Cygnus, the Swan. Its names comes from the Arabic for “tail”. Other traditional names included Arided, Aridif and Gallina. Procyon (α Canis Minoris): the seventh brightest star in the sky, and the brightest star in the small constellation o ...
The HERMES GALAH survey: overview
... around us in the old thin disk, the thick disk, the stellar halo, the inner bulge, and in satellite dwarf galaxies. We are coming into a new era of Galactic investigation, in which one can study the fossil remnants of the early days of the Galaxy, not only in the halo but throughout the major lumino ...
... around us in the old thin disk, the thick disk, the stellar halo, the inner bulge, and in satellite dwarf galaxies. We are coming into a new era of Galactic investigation, in which one can study the fossil remnants of the early days of the Galaxy, not only in the halo but throughout the major lumino ...
Betelgeuse: an unauthorized biography
... the rule of listing stars in constellations by decreasing apparent brightness. It is HD 39801, HR2061, classified as spectral type M2 Iab or M1-M2 Ia-Iab (Keenan and McNeil 1989). Betelgeuse is a Long Period Variable. The visible magnitude has been observed to vary by about 0.6 to 1.1 (with occasion ...
... the rule of listing stars in constellations by decreasing apparent brightness. It is HD 39801, HR2061, classified as spectral type M2 Iab or M1-M2 Ia-Iab (Keenan and McNeil 1989). Betelgeuse is a Long Period Variable. The visible magnitude has been observed to vary by about 0.6 to 1.1 (with occasion ...
NSDL/NSTA Web Seminar: Celebrating Astronomy: A Star`s Story
... http://www.compadre.org/Astronomy Hubble Space Telescope http://hubblesite.org International Year of Astronomy 2009 http://astronomy2009.us http://astronomy2009.org ...
... http://www.compadre.org/Astronomy Hubble Space Telescope http://hubblesite.org International Year of Astronomy 2009 http://astronomy2009.us http://astronomy2009.org ...
Celebrating Astronomy: The Life of a Star
... http://www.compadre.org/Astronomy Hubble Space Telescope http://hubblesite.org International Year of Astronomy 2009 http://astronomy2009.us http://astronomy2009.org ...
... http://www.compadre.org/Astronomy Hubble Space Telescope http://hubblesite.org International Year of Astronomy 2009 http://astronomy2009.us http://astronomy2009.org ...
Interacting Galaxies
... miles per hour. Hubble’s view of galactic collisions gives scientists an idea of what the Milky Way will experience when its inevitable merger with Andromeda occurs. Although the visual results of galactic interactions are very different depending on what types of galaxies are involved, from what an ...
... miles per hour. Hubble’s view of galactic collisions gives scientists an idea of what the Milky Way will experience when its inevitable merger with Andromeda occurs. Although the visual results of galactic interactions are very different depending on what types of galaxies are involved, from what an ...
Comprehensive Census and Complete Characterization of Nearby
... Final Combined Sam ple of High Fidelity Infrared Excess Stars (excluding duplicates) 516 ...
... Final Combined Sam ple of High Fidelity Infrared Excess Stars (excluding duplicates) 516 ...
Pluto Challenge - Cedar Amateur Astronomers
... the telescope’s field of view (FOV). Stars are very, very distance objects and as a result do not move within the FOV over time. However, objects within the solar system are relatively close and always in motion around the Sun. If photographs taken at different times include solar system objects suc ...
... the telescope’s field of view (FOV). Stars are very, very distance objects and as a result do not move within the FOV over time. However, objects within the solar system are relatively close and always in motion around the Sun. If photographs taken at different times include solar system objects suc ...
Galaxies
... protogalactic clouds that were able to cool and form stars before gas settled into a disk ...
... protogalactic clouds that were able to cool and form stars before gas settled into a disk ...
Cygnus (constellation)
Cygnus /ˈsɪɡnəs/ is a northern constellation lying on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan. The swan is one of the most recognizable constellations of the northern summer and autumn, it features a prominent asterism known as the Northern Cross (in contrast to the Southern Cross). Cygnus was among the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations.Cygnus contains Deneb, one of the brightest stars in the night sky and one corner of the Summer Triangle, as well as some notable X-ray sources and the giant stellar association of Cygnus OB2. One of the stars of this association, NML Cygni, is one of the largest stars currently known. The constellation is also home to Cygnus X-1, a distant X-ray binary containing a supergiant and unseen massive companion that was the first object widely held to be a black hole. Many star systems in Cygnus have known planets as a result of the Kepler Mission observing one patch of the sky, the patch is the area around Cygnus. In addition, most of the eastern part of Cygnus is dominated by the Hercules–Corona Borealis Great Wall, a giant galaxy filament that is the largest known structure in the observable universe; covering most of the northern sky.