Lecture 5
... A spectrum binary appears to be a single star but has a spectrum with the absorption lines for two distinctly different spectral types A spectroscopic binary has spectral lines that shift back and forth in wavelength This is caused by the Doppler effect, as the orbits of the stars carry them first t ...
... A spectrum binary appears to be a single star but has a spectrum with the absorption lines for two distinctly different spectral types A spectroscopic binary has spectral lines that shift back and forth in wavelength This is caused by the Doppler effect, as the orbits of the stars carry them first t ...
Star Patterns - Lincoln-Sudbury Regional High School
... each zodiacal constellation are not the same as the dates commonly quoted for “star signs”. In the next Activity, we will investigate why this is so. Another question may have occurred to you: For example, when the Sun is “in” Aquarius, Aquarius can’t be seen because it is up at the same time as the ...
... each zodiacal constellation are not the same as the dates commonly quoted for “star signs”. In the next Activity, we will investigate why this is so. Another question may have occurred to you: For example, when the Sun is “in” Aquarius, Aquarius can’t be seen because it is up at the same time as the ...
Stars Chapter 21
... light from a distant star into its characteristic color • SPECTRUM: the band of colors that forms as light passes through a prism • Used to see if galaxies are moving away or toward the earth ...
... light from a distant star into its characteristic color • SPECTRUM: the band of colors that forms as light passes through a prism • Used to see if galaxies are moving away or toward the earth ...
Chasing the Pole — Howard L. Cohen
... In fact, did you know Polaris has an eighth magnitude companion, Alf UMi B, 18 arc seconds away? This star may have an orbit about Polaris that requires tens of thousands of years to complete once. (This dim star was first seen by William Herschel in 1780.) Try observing this faint double even if yo ...
... In fact, did you know Polaris has an eighth magnitude companion, Alf UMi B, 18 arc seconds away? This star may have an orbit about Polaris that requires tens of thousands of years to complete once. (This dim star was first seen by William Herschel in 1780.) Try observing this faint double even if yo ...
Life Cycle of Stars
... than 1 (like 2 or 3) The upper star is drawn larger only to represent the fact that it is brighter, not necessarily that it is ...
... than 1 (like 2 or 3) The upper star is drawn larger only to represent the fact that it is brighter, not necessarily that it is ...
Unit 4: Astronomy
... 3. Describe a couple of ways that our atmosphere interferes with the observation of objects in space and a couple of ways that astronomers can reduce or eliminate this interference. 4. What is a “non-optical telescope”? Describe a couple of advantages to using one of these in addition to an optical ...
... 3. Describe a couple of ways that our atmosphere interferes with the observation of objects in space and a couple of ways that astronomers can reduce or eliminate this interference. 4. What is a “non-optical telescope”? Describe a couple of advantages to using one of these in addition to an optical ...
Pitt County Schools
... a mirror can serve the same purpose as an objective lens, and why most modern telescopes are reflectors rather than refractors. Analyze the three “powers” of a telescope: (1) light-gathering power, (2) resolving power, and (3) magnification. 1.07 Analyze the observations of the universe made in di ...
... a mirror can serve the same purpose as an objective lens, and why most modern telescopes are reflectors rather than refractors. Analyze the three “powers” of a telescope: (1) light-gathering power, (2) resolving power, and (3) magnification. 1.07 Analyze the observations of the universe made in di ...
Why are Binary Stars so Important for the Theory
... modern model-simulation method by Wood. The two independent methods give consistent results and the radii of the two components are determined better than 1 %. The surface gravities are then also known very precisely (2 %). The temperature difference is small and weil defined. 80th of the components ...
... modern model-simulation method by Wood. The two independent methods give consistent results and the radii of the two components are determined better than 1 %. The surface gravities are then also known very precisely (2 %). The temperature difference is small and weil defined. 80th of the components ...
Feb 2015 - Bays Mountain Park
... These public programs will be here before we know it. It will be great to have more members help with this wonderful set of public programs. I hope you will consider being part of it. I will have the sign up sheets at the meeting as well. If the weather is not good enough to be outside for the progr ...
... These public programs will be here before we know it. It will be great to have more members help with this wonderful set of public programs. I hope you will consider being part of it. I will have the sign up sheets at the meeting as well. If the weather is not good enough to be outside for the progr ...
m02a01
... You may have noticed that the dates corresponding to each zodiacal constellation are not the same as the dates commonly quoted for “star signs”. In the next Activity, we will investigate why this is so. Another question may have occurred to you: when the Sun is “in” Aquarius, for example, Aquarius ...
... You may have noticed that the dates corresponding to each zodiacal constellation are not the same as the dates commonly quoted for “star signs”. In the next Activity, we will investigate why this is so. Another question may have occurred to you: when the Sun is “in” Aquarius, for example, Aquarius ...
Volume 1 (Issue 6), June 2012
... Wilson, the book contains eight chapters giving information from the history of telescopes to amateur telescope makers. Along with these chapters, there are six complete projects for building small telescope up to 10 inch diameter (Primary Mirror). Not only reflectors are shown how to build but also ...
... Wilson, the book contains eight chapters giving information from the history of telescopes to amateur telescope makers. Along with these chapters, there are six complete projects for building small telescope up to 10 inch diameter (Primary Mirror). Not only reflectors are shown how to build but also ...
01-Syllabus
... class, Bring two pencils and a photo ID to each exam! Exams may include multiple-choice, short- answer, and essay questions. If you miss an exam, see the professor. All makeups are given on the same day. Date, time and place to be determined. Exam scores will be posted by your course and ID# on the ...
... class, Bring two pencils and a photo ID to each exam! Exams may include multiple-choice, short- answer, and essay questions. If you miss an exam, see the professor. All makeups are given on the same day. Date, time and place to be determined. Exam scores will be posted by your course and ID# on the ...
Stars, Galaxies & Universe
... Brightness- apparent brightness and absolute magnitude HR diagram shows temperature, brightness, color of stars and where the star is in its life cycle. Used to graph the surface temperature (x-axis) vs. brightness (yaxis) Hotter stars are on left side of graph; cooler stars on the right side of the ...
... Brightness- apparent brightness and absolute magnitude HR diagram shows temperature, brightness, color of stars and where the star is in its life cycle. Used to graph the surface temperature (x-axis) vs. brightness (yaxis) Hotter stars are on left side of graph; cooler stars on the right side of the ...
supplemental educational materials PDF
... they are “asterisms” – subsets or supersets of constellations. For example, the Big Dipper is part of the constellation Ursa Major and the Pleiades are found in Taurus. • Different constellations are visible at certain times of the year due to Earth’s orbit around the Sun. Each day our sky changes a ...
... they are “asterisms” – subsets or supersets of constellations. For example, the Big Dipper is part of the constellation Ursa Major and the Pleiades are found in Taurus. • Different constellations are visible at certain times of the year due to Earth’s orbit around the Sun. Each day our sky changes a ...
The Resounding Universe
... 322 BC) explains why mortals cannot hear these sounds. In fact, a sound or a noise can be perceived only when in contrast with its opposite, namely the absence of the sound itself. However, the sound of the planets is present since our birth and this explains why we cannot recognise it, not having t ...
... 322 BC) explains why mortals cannot hear these sounds. In fact, a sound or a noise can be perceived only when in contrast with its opposite, namely the absence of the sound itself. However, the sound of the planets is present since our birth and this explains why we cannot recognise it, not having t ...
Standard EPS Shell Presentation
... Irregular galaxies exhibit peculiar shapes and do not appear to rotate like those galaxies of other shapes. ...
... Irregular galaxies exhibit peculiar shapes and do not appear to rotate like those galaxies of other shapes. ...
Close Double Stars from Video
... Astronomical Research Institute of Thailand, andrea@narit.or.th • He worked before for a long time at the European Southern Observatory, where he still makes most of his observations • Most observations are recorded in the infrared, allowing higher S/N and even some daytime observations • Observatio ...
... Astronomical Research Institute of Thailand, andrea@narit.or.th • He worked before for a long time at the European Southern Observatory, where he still makes most of his observations • Most observations are recorded in the infrared, allowing higher S/N and even some daytime observations • Observatio ...
Chinese astronomy
Astronomy in China has a very long history, with historians indicating that the Chinese were the most persistent and accurate observers of celestial phenomena anywhere in the world before the Arabs. Star names later categorized in the twenty-eight mansions have been found on oracle bones unearthed at Anyang, dating back to the middle Shang Dynasty (Chinese Bronze Age), and the mansion (xiù:宿) system's nucleus seems to have taken shape by the time of the ruler Wu Ding (1339-1281 BC).Detailed records of astronomical observations began during the Warring States period (fourth century BC) and flourished from the Han period onward. Chinese astronomy was equatorial, centered as it was on close observation of circumpolar stars, and was based on different principles from those prevailing in traditional Western astronomy, where heliacal risings and settings of zodiac constellations formed the basic ecliptic framework.Some elements of Indian astronomy reached China with the expansion of Buddhism after the Eastern Han Dynasty (25–220 AD), but the most detailed incorporation of Indian astronomical thought occurred during the Tang Dynasty (618-907), when numerous Indian astronomers took up residence in the Chinese capital, and Chinese scholars, such as the great Tantric Buddhist monk and mathematician Yi Xing, mastered its system. Islamic astronomers collaborated closely with their Chinese colleagues during the Yuan Dynasty, and, after a period of relative decline during the Ming Dynasty, astronomy was revitalized under the stimulus of Western cosmology and technology after the Jesuits established their missions. The telescope was introduced in the seventeenth century. In 1669, the Peking observatory was completely redesigned and refitted under the direction of Ferdinand Verbiest. Today, China continues to be active in astronomy, with many observatories and its own space program.