Night Sky Checklist April–May–June Unaided Eye Astronomy
... The following information may help you understand why these objects are on the Night Sky Checklists. Constellations and asterisms (Astronomers recognize 88 official constellations, but asterisms are unofficial and made from parts of one or more constellation. All are imaginary dot-to-dot drawings in ...
... The following information may help you understand why these objects are on the Night Sky Checklists. Constellations and asterisms (Astronomers recognize 88 official constellations, but asterisms are unofficial and made from parts of one or more constellation. All are imaginary dot-to-dot drawings in ...
W > 1 - The Open University
... target for Webcam imaging. See separate observing sheet. Use Jupiter to locate gamma Virginis – see separate sheet. ...
... target for Webcam imaging. See separate observing sheet. Use Jupiter to locate gamma Virginis – see separate sheet. ...
Johnathan - WordPress.com
... The Big Dipper (also known as the Plough) is an asterism consisting of the seven brightest stars of the constellation Ursa Major. Four define a "bowl" or "body" and three define a "handle" or "head". It is recognized as a distinct grouping in many cultures. The North Star (Polaris), the current nort ...
... The Big Dipper (also known as the Plough) is an asterism consisting of the seven brightest stars of the constellation Ursa Major. Four define a "bowl" or "body" and three define a "handle" or "head". It is recognized as a distinct grouping in many cultures. The North Star (Polaris), the current nort ...
here - ESA Science
... spiral arms. The times that these traverses occurred appear to coincide with extended cold periods on Earth. Perhaps the densely-filled star and gas environment of the spiral arms have an effect on the Earth’s climate. Mapping the positions and motions of stars allows astronomers to develop a frame ...
... spiral arms. The times that these traverses occurred appear to coincide with extended cold periods on Earth. Perhaps the densely-filled star and gas environment of the spiral arms have an effect on the Earth’s climate. Mapping the positions and motions of stars allows astronomers to develop a frame ...
Stars-Chapter 18
... If the remaining mass of the star is more than about three times that of the Sun, it will collapse so completely that it will literally disappear from the universe. What is left behind is an intense region of gravity called a black hole ...
... If the remaining mass of the star is more than about three times that of the Sun, it will collapse so completely that it will literally disappear from the universe. What is left behind is an intense region of gravity called a black hole ...
PTYS/ASTR 206 – Section 2 - Lunar and Planetary Laboratory
... PART 1 (25 pts total): Conceptual. Please provide a concise short answer (not more than a few sentences) for each of the following. # 1. (5 pts) (Chapters 5) What is a blackbody? What is a blackbody spectrum? Why are these concepts useful to planetary scientists? A blackbody is an idealized object t ...
... PART 1 (25 pts total): Conceptual. Please provide a concise short answer (not more than a few sentences) for each of the following. # 1. (5 pts) (Chapters 5) What is a blackbody? What is a blackbody spectrum? Why are these concepts useful to planetary scientists? A blackbody is an idealized object t ...
Gingin Observatory July 2015 Newsletter
... known as greatest illuminated extent by astronomers, it is defined as when the planets illuminated portion or dayside covers the greatest square area of our sky. At this time we see Venus just one quarter (25%) illuminated just like a 3 or 4 day old Moon. Postal Address: PO Box 2695 Clarkson WA 6030 ...
... known as greatest illuminated extent by astronomers, it is defined as when the planets illuminated portion or dayside covers the greatest square area of our sky. At this time we see Venus just one quarter (25%) illuminated just like a 3 or 4 day old Moon. Postal Address: PO Box 2695 Clarkson WA 6030 ...
Physical Science Laboratory: Skyglobe
... . to be able to describe the difference in the stars’ apparent movement throughout the night from the equator and from the poles. . to be able to identify Polaris, Vega, Sirius, and other prominent stars. . to be able to describe the Sun’s movement across the sky during the equinoxes and solstices. ...
... . to be able to describe the difference in the stars’ apparent movement throughout the night from the equator and from the poles. . to be able to identify Polaris, Vega, Sirius, and other prominent stars. . to be able to describe the Sun’s movement across the sky during the equinoxes and solstices. ...
1” “Sky-Notes” of the Open University Astronomy Club. September
... It may just be possible to glimpse the elusive planet low in the dawn skies during the first days of the month. Magnitude increases from –1.1 (diameter 5.8”, phase 0.783) on the 2nd to –1.3 (diameter 5.4”, phase 0.913) on the 7th. ...
... It may just be possible to glimpse the elusive planet low in the dawn skies during the first days of the month. Magnitude increases from –1.1 (diameter 5.8”, phase 0.783) on the 2nd to –1.3 (diameter 5.4”, phase 0.913) on the 7th. ...
astrocoursespring2012lec4
... measured by looking for the stars that are just beginning to enter the giant star stage. This forms a "knee" in the HR diagram, bending to the upper right from the main-sequence line. The absolute magnitude at this bend is directly a function of the age of globular cluster, so an age scale can be pl ...
... measured by looking for the stars that are just beginning to enter the giant star stage. This forms a "knee" in the HR diagram, bending to the upper right from the main-sequence line. The absolute magnitude at this bend is directly a function of the age of globular cluster, so an age scale can be pl ...
Star Types
... - all main sequence stars fuse H into He in their cores - this is the defining characteristic of a main sequence star. ...
... - all main sequence stars fuse H into He in their cores - this is the defining characteristic of a main sequence star. ...
slides
... Julian calendar was very successful for many centuries, but later on a flaw began to appear. – the solar year is shorter than 365 ¼ days by 11 minutes 12 seconds which had been adding up (one day in 130 years). Over the span of a millennia it added up to be significant. Calendar was again out of syn ...
... Julian calendar was very successful for many centuries, but later on a flaw began to appear. – the solar year is shorter than 365 ¼ days by 11 minutes 12 seconds which had been adding up (one day in 130 years). Over the span of a millennia it added up to be significant. Calendar was again out of syn ...
Goals of the day Clickers Order of Magnitude Astronomy
... • When dealing with really big quantities, the small details become trivial – For example, when we say that the nearest galaxy is 2 million (2,000,000) light-years away, does it really matter if its actually 2,000,001? 2,000,100? – How far is it to drive from here to Los Angeles? (centimeters won ...
... • When dealing with really big quantities, the small details become trivial – For example, when we say that the nearest galaxy is 2 million (2,000,000) light-years away, does it really matter if its actually 2,000,001? 2,000,100? – How far is it to drive from here to Los Angeles? (centimeters won ...
Feb 2017 - What`s Out Tonight?
... tens of thousands stars held together by their mutual gravity. All Galilean moons and cloud bands, easily visible at 50x. It is posof the globulars that can be seen in the sky are part of our Milky sible to see the moons with well-focused binoculars. Saturn is Way Galaxy, and there are about 200 of ...
... tens of thousands stars held together by their mutual gravity. All Galilean moons and cloud bands, easily visible at 50x. It is posof the globulars that can be seen in the sky are part of our Milky sible to see the moons with well-focused binoculars. Saturn is Way Galaxy, and there are about 200 of ...
The Sun: Source of heat and light
... The lightyear is a particularly useful unit because it reminds us that what we see actually happened a while back, when the light left the star (or planet) that we are looking at. Let’s imagine that three stars A, B and C are all “born” at about the same time. Because the stars are at different dist ...
... The lightyear is a particularly useful unit because it reminds us that what we see actually happened a while back, when the light left the star (or planet) that we are looking at. Let’s imagine that three stars A, B and C are all “born” at about the same time. Because the stars are at different dist ...
Which Constellation is Which?
... How Do Astronomers Use Constellations? Astronomers divide the sky into 88 constellations. Astronomers name objects after their constellation. The Andromeda galaxy and the Orion nebula are examples. Earth sometimes passes through showers of meteors. The showers are named after the constellations from ...
... How Do Astronomers Use Constellations? Astronomers divide the sky into 88 constellations. Astronomers name objects after their constellation. The Andromeda galaxy and the Orion nebula are examples. Earth sometimes passes through showers of meteors. The showers are named after the constellations from ...
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.