Lab Writeup
... eyepiece of our refractor telescopes. At least two eyepieces will be used. The first will have a fairly large field of view. The second will have higher magnification, and has a scale which allows you to fairly accurately measure small angles. The focal length of the Orion 80 “short tube” refractor ...
... eyepiece of our refractor telescopes. At least two eyepieces will be used. The first will have a fairly large field of view. The second will have higher magnification, and has a scale which allows you to fairly accurately measure small angles. The focal length of the Orion 80 “short tube” refractor ...
Writer`s Workshop Series The Art of Science Fiction - Sci Fi
... What we need is a more easily understood coordinate system. Coordinate System Transformation (Spherical to Cartesian) This, then, is the problem I faced when I first became a writer. I searched my various astronomy books for stars that might conceivably support terrestrial planets, then tried to fig ...
... What we need is a more easily understood coordinate system. Coordinate System Transformation (Spherical to Cartesian) This, then, is the problem I faced when I first became a writer. I searched my various astronomy books for stars that might conceivably support terrestrial planets, then tried to fig ...
Abundances of RGB stars in NGC 6752 Grundahl
... of ∼100 per pixel (∼4 pixels per spatial resolution element) at 6700 Å. In total 21 stars were observed, under generally excellent seeing conditions. The spectrograph slit orientation was chosen such that no other visible stars would enter it. We used the ESO pipeline reduced spectra for the abunda ...
... of ∼100 per pixel (∼4 pixels per spatial resolution element) at 6700 Å. In total 21 stars were observed, under generally excellent seeing conditions. The spectrograph slit orientation was chosen such that no other visible stars would enter it. We used the ESO pipeline reduced spectra for the abunda ...
http://webcache.googleusercontent.com/search?q=cache
... its position behind Ursa Major) to be like Jupiter and Mars. [3] This is a 1st magnitude, golden red star, located on the left knee of the figure. It is the 4th brightest star in the heavens and was one of the few stars to be assigned a name by Ptolemy and Manilius. Albiruni informs us that it was s ...
... its position behind Ursa Major) to be like Jupiter and Mars. [3] This is a 1st magnitude, golden red star, located on the left knee of the figure. It is the 4th brightest star in the heavens and was one of the few stars to be assigned a name by Ptolemy and Manilius. Albiruni informs us that it was s ...
Student Exploration Sheet: Growing Plants
... High atmospheric pressures in a star cause spectral lines to be broadened, or “smeared out.” Giant stars, which have relatively low atmospheric pressures, are characterized by narrow spectral lines. ...
... High atmospheric pressures in a star cause spectral lines to be broadened, or “smeared out.” Giant stars, which have relatively low atmospheric pressures, are characterized by narrow spectral lines. ...
Studying the Stars
... Pogson assigned the brightest stars the first order of magnitude (magnitude = 1), and dimmer stars were 2nd, 3rd, 4th order, etc. (magnitudes = 2, 3, 4, etc.) Now that we can be more accurate in our measurements, stars can have more specific magnitudes like 1.5, 6.73, etc. and even negative numbers ...
... Pogson assigned the brightest stars the first order of magnitude (magnitude = 1), and dimmer stars were 2nd, 3rd, 4th order, etc. (magnitudes = 2, 3, 4, etc.) Now that we can be more accurate in our measurements, stars can have more specific magnitudes like 1.5, 6.73, etc. and even negative numbers ...
Magnitude scale theory
... Consider two stars A and B. Star A appears to be brighter than star B. In other words the intensity of the light reaching the observer from star A is greater than that from star B. ...
... Consider two stars A and B. Star A appears to be brighter than star B. In other words the intensity of the light reaching the observer from star A is greater than that from star B. ...
Turbulence Layers - Facultad de Ciencias
... wavelength, polarization state and arrival time for every incoming photon over the largest field of view. In fact using 3D spectroscopy, the wavelength and the incoming direction in a 2D field of view are recorded in a (x,y,λ) data cube, in contrast with standard techniques which either do imaging o ...
... wavelength, polarization state and arrival time for every incoming photon over the largest field of view. In fact using 3D spectroscopy, the wavelength and the incoming direction in a 2D field of view are recorded in a (x,y,λ) data cube, in contrast with standard techniques which either do imaging o ...
Star - Astrophysics
... These stellar explosions are extremely luminous, with absolute magnitudes MB around -16 to -20, the same as a whole small to moderate sized galaxy. Most are seen in external galaxies (e.g. SN1987A in the Large Magellanic Cloud). We expect around 1 every 30 years in our Galaxy, though none has been s ...
... These stellar explosions are extremely luminous, with absolute magnitudes MB around -16 to -20, the same as a whole small to moderate sized galaxy. Most are seen in external galaxies (e.g. SN1987A in the Large Magellanic Cloud). We expect around 1 every 30 years in our Galaxy, though none has been s ...
Sky Maps Teacher`s Guide - Northern Stars Planetarium
... the ocean. What luck! That meant that the bear could not smell him. This was his chance to prove his manhood. He told the dogs to stop and lie down. Taking his father's spear, he slowly crept out onto the ice floe to get close enough to throw the spear and kill the great beast. Finally, when he dare ...
... the ocean. What luck! That meant that the bear could not smell him. This was his chance to prove his manhood. He told the dogs to stop and lie down. Taking his father's spear, he slowly crept out onto the ice floe to get close enough to throw the spear and kill the great beast. Finally, when he dare ...
Unit 4 Space
... Our solar system is full of planets, moons, asteroids and comets, all of which revolve around the Sun at the center. When a star forms from a nebula, gravity pulls most of the material into the new star, but some may also clump together to form objects in a solar system. • A planet is a celestial bo ...
... Our solar system is full of planets, moons, asteroids and comets, all of which revolve around the Sun at the center. When a star forms from a nebula, gravity pulls most of the material into the new star, but some may also clump together to form objects in a solar system. • A planet is a celestial bo ...
Annual report 2004 - Département d`Astrophysique, Géophysique et
... In the framework of a long-term spectroscopic and photometric monitoring of slowly pulsating B stars we studied thoroughly the northern target star HD 147394. We performed an end-to-end analysis, consisting of a frequency analysis, a mode identification from line-profile variations and a comparison ...
... In the framework of a long-term spectroscopic and photometric monitoring of slowly pulsating B stars we studied thoroughly the northern target star HD 147394. We performed an end-to-end analysis, consisting of a frequency analysis, a mode identification from line-profile variations and a comparison ...
Solutions
... the energy levels to the ground state. High energy is required to ionize the hydrogen and this energy is supplied by the newly formed OB Association stars that emit most of their energy as high-energy short-wavelength hardUV photons. The photons from the OB Association stars “power up” the HII regio ...
... the energy levels to the ground state. High energy is required to ionize the hydrogen and this energy is supplied by the newly formed OB Association stars that emit most of their energy as high-energy short-wavelength hardUV photons. The photons from the OB Association stars “power up” the HII regio ...
Color and Temperature of Stars
... absorbs light rays that would have produced the corresponding green colors. Although all stars have absorption lines in the visible band of the electromagnetic spectrum, emission lines are more common in other parts of the spectrum. For instance, nitrogen in the sun's atmosphere emits powerful radia ...
... absorbs light rays that would have produced the corresponding green colors. Although all stars have absorption lines in the visible band of the electromagnetic spectrum, emission lines are more common in other parts of the spectrum. For instance, nitrogen in the sun's atmosphere emits powerful radia ...
Earth Motions and the Heavens
... You go out tonight and see the brightest star in the constellation Orion just rising above your eastern horizon at 10 PM. One week later at 10 PM this ...
... You go out tonight and see the brightest star in the constellation Orion just rising above your eastern horizon at 10 PM. One week later at 10 PM this ...
1) The following questions refer to the HR diagram
... 15) As a group, stars known as main sequence stars on an H-R diagram are best described as being: a. hotter. b. brighter. c. stable. d. larger. 16) Which is the same for all stars along a horizontal line on an HR diagram? (a) temperature (b) diameter (c) mass (d) luminosity ...
... 15) As a group, stars known as main sequence stars on an H-R diagram are best described as being: a. hotter. b. brighter. c. stable. d. larger. 16) Which is the same for all stars along a horizontal line on an HR diagram? (a) temperature (b) diameter (c) mass (d) luminosity ...
N5128PNSydney
... – 3P2 [O III]5007Å This strong line allows detection of PN; high [O III]/Hα ratio discriminates against H I I regions Other lines of H, He, N, Ne, Ar, S prominent in optical spectra of PN Line ratios dependent on Te, Ne and abundance Some line ratios of same species dependent on Te and/or Ne. Exampl ...
... – 3P2 [O III]5007Å This strong line allows detection of PN; high [O III]/Hα ratio discriminates against H I I regions Other lines of H, He, N, Ne, Ar, S prominent in optical spectra of PN Line ratios dependent on Te, Ne and abundance Some line ratios of same species dependent on Te and/or Ne. Exampl ...
light year - Otterbein University
... What kind of errors occurred? • There are systematic and random errors • To beat down random errors, measure the same thing many times, and the errors will even out, i.e. the overall error will be smaller • The systematic error can be reduced by doing a better experiment, or understanding your inst ...
... What kind of errors occurred? • There are systematic and random errors • To beat down random errors, measure the same thing many times, and the errors will even out, i.e. the overall error will be smaller • The systematic error can be reduced by doing a better experiment, or understanding your inst ...
Star Finder
... ecliptic fully around in 360 days ..Thus, we divide to this day, circles up into 360 degrees. Actually a year is ___________days and we can say the sun approximately travels on the ecliptic ______ degree(s) per day! MOTION SUMMARY: Facing the Star Finder with the North Horizon UP the sky rotates in ...
... ecliptic fully around in 360 days ..Thus, we divide to this day, circles up into 360 degrees. Actually a year is ___________days and we can say the sun approximately travels on the ecliptic ______ degree(s) per day! MOTION SUMMARY: Facing the Star Finder with the North Horizon UP the sky rotates in ...
AY5 Announcements
... A. It will be slightly more massive than the Sun as it will have converted the light-weight hydrogen into heavier helium B. It will have a slightly larger radius than the Sun because of its high temperature C. It will be enriched in He compared to the Sun D. It will be much more luminous than th ...
... A. It will be slightly more massive than the Sun as it will have converted the light-weight hydrogen into heavier helium B. It will have a slightly larger radius than the Sun because of its high temperature C. It will be enriched in He compared to the Sun D. It will be much more luminous than th ...
Hipparcos
Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993. It was the first space experiment devoted to precision astrometry, the accurate measurement of the positions of celestial objects on the sky. This permitted the accurate determination of proper motions and parallaxes of stars, allowing a determination of their distance and tangential velocity. When combined with radial-velocity measurements from spectroscopy, this pinpointed all six quantities needed to determine the motion of stars. The resulting Hipparcos Catalogue, a high-precision catalogue of more than 118,200 stars, was published in 1997. The lower-precision Tycho Catalogue of more than a million stars was published at the same time, while the enhanced Tycho-2 Catalogue of 2.5 million stars was published in 2000. Hipparcos ' follow-up mission, Gaia, was launched in 2013.The word ""Hipparcos"" is an acronym for High precision parallax collecting satellite and also a reference to the ancient Greek astronomer Hipparchus of Nicaea, who is noted for applications of trigonometry to astronomy and his discovery of the precession of the equinoxes.