A star by any other name - Baruch Sterman
... In the Big Dipper, the dim companion to bright Mizar is named Alcor. (In ancient times, this pair functioned as a kind of eye chart, since only those with keen vision can discern that there are indeed two stars). The original name was Al Khiwwar (= chiver, faint). Sometimes the Hebrew link is more c ...
... In the Big Dipper, the dim companion to bright Mizar is named Alcor. (In ancient times, this pair functioned as a kind of eye chart, since only those with keen vision can discern that there are indeed two stars). The original name was Al Khiwwar (= chiver, faint). Sometimes the Hebrew link is more c ...
cassiopeia a - Chandra X
... debris field of hot gas and energetic particles created when a massive star explodes. WHERE: Cas A, at a distance of 11,000 light years from Earth, is in the constellation Cassiopeia. This constellation is widely known for its “W” shape that Greek and Roman mythology identified as a queen’s throne. ...
... debris field of hot gas and energetic particles created when a massive star explodes. WHERE: Cas A, at a distance of 11,000 light years from Earth, is in the constellation Cassiopeia. This constellation is widely known for its “W” shape that Greek and Roman mythology identified as a queen’s throne. ...
Constellations 1
... • Constellations- a pattern or group of stars in the sky • Star Chart- map of the stars in the night sky used as a way to identify constellations • Compass- used to locate direction in order to use a star chart correctly • Telescope- used to see far away objects in space ...
... • Constellations- a pattern or group of stars in the sky • Star Chart- map of the stars in the night sky used as a way to identify constellations • Compass- used to locate direction in order to use a star chart correctly • Telescope- used to see far away objects in space ...
constellations[1]
... • Constellations- a pattern or group of stars in the sky • Star Chart- map of the stars in the night sky used as a way to identify constellations • Compass- used to locate direction in order to use a star chart correctly • Telescope- used to see far away objects in space ...
... • Constellations- a pattern or group of stars in the sky • Star Chart- map of the stars in the night sky used as a way to identify constellations • Compass- used to locate direction in order to use a star chart correctly • Telescope- used to see far away objects in space ...
Calculating Main Sequence Lifetimes
... At the beginning of the twentieth century two astronomers, the Danish E. Hertzsprung and the American H. N. Russell, established a correlation between two important stellar parameters: brightness and color. Since ancient times, the brightness of a star is indicated by "magnitudes": 1, 2 and so on, w ...
... At the beginning of the twentieth century two astronomers, the Danish E. Hertzsprung and the American H. N. Russell, established a correlation between two important stellar parameters: brightness and color. Since ancient times, the brightness of a star is indicated by "magnitudes": 1, 2 and so on, w ...
Stars and Their Characteristics
... • Constellation- groups of stars that appear to form patterns – 88 constellations can be seen from n. and s. hemispheres – So far away that only after thousands of years might the motions be observed – Big Dipper- asterism (small-star grouping) • Part of Ursa Major- Great Bear ...
... • Constellation- groups of stars that appear to form patterns – 88 constellations can be seen from n. and s. hemispheres – So far away that only after thousands of years might the motions be observed – Big Dipper- asterism (small-star grouping) • Part of Ursa Major- Great Bear ...
TU Muscae and the Early-type Overcontact Binaries
... Double-lined spectroscopic binary: spectral lines of both stars are visible. ...
... Double-lined spectroscopic binary: spectral lines of both stars are visible. ...
User`s Guide to the Sky Notes
... Since the roots of our western culture were generally in the northern hemisphere (northern latitudes), stars visible in only the southern hemisphere were not originally included in any constellations. Some stars may have been included in more than one constellations, when constellations sometimes ov ...
... Since the roots of our western culture were generally in the northern hemisphere (northern latitudes), stars visible in only the southern hemisphere were not originally included in any constellations. Some stars may have been included in more than one constellations, when constellations sometimes ov ...
The Science behind the Stars ctY Astrophysics by Spencer McClung
... of images of light from a star and had to determine the mass of its binary companion. For an hour we used two sticks to monitor small changes in the star’s light and then used a very long series of calculations with very big numbers. In the end, we were off by a couple orders of magnitude, but this ...
... of images of light from a star and had to determine the mass of its binary companion. For an hour we used two sticks to monitor small changes in the star’s light and then used a very long series of calculations with very big numbers. In the end, we were off by a couple orders of magnitude, but this ...
Quick Reference - Objects in the skies
... These are patterns formed by prominent stars within apparent proximity to one another on Earth's night sky. There are 88 standard constellations recognized by the International Astronomical Union (IAU) since 1922. The majority of these go back to the 48 constellations defined by Ptolemy in his Almag ...
... These are patterns formed by prominent stars within apparent proximity to one another on Earth's night sky. There are 88 standard constellations recognized by the International Astronomical Union (IAU) since 1922. The majority of these go back to the 48 constellations defined by Ptolemy in his Almag ...
The Family of Stars
... that a star would have if it were at a distance of 10 pc. If we know a star’s absolute magnitude, we can infer its distance by comparing absolute and apparent magnitudes. ...
... that a star would have if it were at a distance of 10 pc. If we know a star’s absolute magnitude, we can infer its distance by comparing absolute and apparent magnitudes. ...
less than 1 million years
... 1. Today, scientists have _________ about how stars evolve, what makes them different from one another, and how they _____. 2. When __________ fuel is depleted , a star loses its _________ ___________ status. (2 words) 3. This (depletion of star’s hydrogen) can take less than 1 million years for the ...
... 1. Today, scientists have _________ about how stars evolve, what makes them different from one another, and how they _____. 2. When __________ fuel is depleted , a star loses its _________ ___________ status. (2 words) 3. This (depletion of star’s hydrogen) can take less than 1 million years for the ...
Properties of Stars
... • Very hot (30,000 K) stars emit their light in the blue spectrum, red stars are much cooler, stars with temperatures between 5000 and 6000 K appear yellow • Binary Stars – pairs of stars, pulled together by gravity, that orbit each other • Binary stars are used to determine the star property most d ...
... • Very hot (30,000 K) stars emit their light in the blue spectrum, red stars are much cooler, stars with temperatures between 5000 and 6000 K appear yellow • Binary Stars – pairs of stars, pulled together by gravity, that orbit each other • Binary stars are used to determine the star property most d ...
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.