Comets in ancient India
... In vedic texts, nakshatras or ‘lunar mansion’ (bright stars and constellations lying along Moon’s path) have an exalted status (Subbarayappa 2008). Krittika (Pleiades) is often listed as the first asterism among the 27 or 28 nakshatras, which according to Jacobi (1909), was due to its rising on the ...
... In vedic texts, nakshatras or ‘lunar mansion’ (bright stars and constellations lying along Moon’s path) have an exalted status (Subbarayappa 2008). Krittika (Pleiades) is often listed as the first asterism among the 27 or 28 nakshatras, which according to Jacobi (1909), was due to its rising on the ...
File - South Sevier High School
... the Big Dipper’s handle. These are called the pointer stars. Draw a mental line through these stars leading away from the table, as shown in Figure 1-2. The first moderately bright star you then encounter is Polaris, also called the North Star because it is located almost directly over the Earth’s n ...
... the Big Dipper’s handle. These are called the pointer stars. Draw a mental line through these stars leading away from the table, as shown in Figure 1-2. The first moderately bright star you then encounter is Polaris, also called the North Star because it is located almost directly over the Earth’s n ...
Astronomy Astrophysics Circumstellar emission in Be/X-ray binaries of the Magellanic
... wavelength. 3) Thermal Bremsstrahlung also makes the star appear brighter, compared to a B star of the same luminosity class. Other mechanisms can help to modify even further the brightness of the system. Thomson scattering in the envelope, for example, could add photons into the observer’s line of ...
... wavelength. 3) Thermal Bremsstrahlung also makes the star appear brighter, compared to a B star of the same luminosity class. Other mechanisms can help to modify even further the brightness of the system. Thomson scattering in the envelope, for example, could add photons into the observer’s line of ...
Science in Contact with Art:
... the interconnection of his person with the stars, and justified his atypical career to himself and those around him. From a family of minor Czech Brethren aristocracy in a re-catholicising empire he managed to become the highest grandee after the emperor, from a deserter from the Estates army the c ...
... the interconnection of his person with the stars, and justified his atypical career to himself and those around him. From a family of minor Czech Brethren aristocracy in a re-catholicising empire he managed to become the highest grandee after the emperor, from a deserter from the Estates army the c ...
Principal Features of the Sky
... variety of this term appears. The expression became synonymous with the North, or northern regions, but originally meant the seven plow oxen. R.H. Allen (1963) says that the Big Dipper was known as a coffin in parts of the Mideast, a wagon or bear in Greece, and a bull’s thigh in preHellenistic Egyp ...
... variety of this term appears. The expression became synonymous with the North, or northern regions, but originally meant the seven plow oxen. R.H. Allen (1963) says that the Big Dipper was known as a coffin in parts of the Mideast, a wagon or bear in Greece, and a bull’s thigh in preHellenistic Egyp ...
Principal Features of the Sky - Beck-Shop
... variety of this term appears. The expression became synonymous with the North, or northern regions, but originally meant the seven plow oxen. R.H. Allen (1963) says that the Big Dipper was known as a coffin in parts of the Mideast, a wagon or bear in Greece, and a bull’s thigh in preHellenistic Egyp ...
... variety of this term appears. The expression became synonymous with the North, or northern regions, but originally meant the seven plow oxen. R.H. Allen (1963) says that the Big Dipper was known as a coffin in parts of the Mideast, a wagon or bear in Greece, and a bull’s thigh in preHellenistic Egyp ...
Is there a Supermassive Black Hole at the Center of the Milky Way?
... galaxies indicated a galactic link. In the 1960s, sensitive radio interferometers confirmed the previously circumstantial case by detecting faint trails (called “jets”) of radio emission from the lobes back toward the parent galaxy. Radio jets often lead back to a point-like source at the precise ce ...
... galaxies indicated a galactic link. In the 1960s, sensitive radio interferometers confirmed the previously circumstantial case by detecting faint trails (called “jets”) of radio emission from the lobes back toward the parent galaxy. Radio jets often lead back to a point-like source at the precise ce ...
Chemical abundances and winds of massive stars in M31: a Btype
... B- and A-type supergiants in Local Group galaxies with welldefined distances will, therefore, allow us to test the concept of the WLR and its applicability for distance determinations. Numerous surveys have identified OB and WR stars beyond the Magellanic Clouds, e.g. Massey et al. (1986) and Moffat ...
... B- and A-type supergiants in Local Group galaxies with welldefined distances will, therefore, allow us to test the concept of the WLR and its applicability for distance determinations. Numerous surveys have identified OB and WR stars beyond the Magellanic Clouds, e.g. Massey et al. (1986) and Moffat ...
Order of Magnitude Icebreaker
... ★ Use your physical intuition, not google! ★ Remember: Multiple approaches possible! ...
... ★ Use your physical intuition, not google! ★ Remember: Multiple approaches possible! ...
Using time to measure distance - AS-A2
... and the Sun. This is called an ‘opposition’. It also means that the two planets were both at the same time at their closest to the Earth. At this time Jupiter was the brightest object in the night sky apart from the Moon. Saturn was very bright too, though not as bright as Canis Major (Sirius or the ...
... and the Sun. This is called an ‘opposition’. It also means that the two planets were both at the same time at their closest to the Earth. At this time Jupiter was the brightest object in the night sky apart from the Moon. Saturn was very bright too, though not as bright as Canis Major (Sirius or the ...
The Stars - Springer
... Some are old stars, while there are a few that are relatively young. How were these things discovered? Furthermore, even to the untrained naked eye a few stars have a perceptible color – Betelgeuse (a Orionis)1 is most definitely red, Capella (a Aurigae) is yellow, and Vega (a Lyrae) is steely blue. ...
... Some are old stars, while there are a few that are relatively young. How were these things discovered? Furthermore, even to the untrained naked eye a few stars have a perceptible color – Betelgeuse (a Orionis)1 is most definitely red, Capella (a Aurigae) is yellow, and Vega (a Lyrae) is steely blue. ...
sections 19-22 instructor notes
... being warped north of b = 0° towards l ≈ 90° and south of b = 0° towards l = 270°, by perhaps 0.8 kpc at 1.5 R0. It is usually explained as the result of an interaction of the Galaxy with the Large Magellanic Cloud, the Small Magellanic Cloud, and the other objects in the Magellanic Stream. The feat ...
... being warped north of b = 0° towards l ≈ 90° and south of b = 0° towards l = 270°, by perhaps 0.8 kpc at 1.5 R0. It is usually explained as the result of an interaction of the Galaxy with the Large Magellanic Cloud, the Small Magellanic Cloud, and the other objects in the Magellanic Stream. The feat ...
Life Histories Of Some Stars
... 5. Give each group the list of stars attached and the HR diagram attached. Instead of height and weight, the information is in Luminosity (compared to sun) and Surface Temperature (in K). The chart also gives the star’s current status as either a main sequence star* (adulthood for stars), a giant (b ...
... 5. Give each group the list of stars attached and the HR diagram attached. Instead of height and weight, the information is in Luminosity (compared to sun) and Surface Temperature (in K). The chart also gives the star’s current status as either a main sequence star* (adulthood for stars), a giant (b ...
The Chemical Composition of Carbon-Rich, Very Metal
... put forward to account for the moderately metal-poor classical CH stars ([Fe/H]∼ −1.5). These are usually explained by a model involving mass transfer from a carbon-enhanced asymptotic giant branch (AGB) star (one that has since evolved to the white dwarf stage and cannot now be seen) to its lower-m ...
... put forward to account for the moderately metal-poor classical CH stars ([Fe/H]∼ −1.5). These are usually explained by a model involving mass transfer from a carbon-enhanced asymptotic giant branch (AGB) star (one that has since evolved to the white dwarf stage and cannot now be seen) to its lower-m ...
Summary of Talks at Growing Black Holes 2004 in Garching
... to estimates of quasar lifetimes. At z < 2.5, SDSS clustering scale is about 7 Mpc. There is now preliminary, tentative evidence for correlation length to increase with redshift. Spectra of emission lines in high z quasars & Continuum shape consistent with lower z objects -> implication : rapid ch ...
... to estimates of quasar lifetimes. At z < 2.5, SDSS clustering scale is about 7 Mpc. There is now preliminary, tentative evidence for correlation length to increase with redshift. Spectra of emission lines in high z quasars & Continuum shape consistent with lower z objects -> implication : rapid ch ...
Nulling Interferometer
... Dispersion Compensation allows out-of band light to be used to sense phase (Angel and Woolf 1997) 31 Jan. 2000 ...
... Dispersion Compensation allows out-of band light to be used to sense phase (Angel and Woolf 1997) 31 Jan. 2000 ...
Lecture 2 Understand the sky we see from the Earth
... Constellations • Most official constellation names come from antiquity. Some southern hemisphere constellations were named by European explorers in the 17th & 18th centuries. • The patterns of stars have no physical significance! Stars that appear close together may lie at very different distances. ...
... Constellations • Most official constellation names come from antiquity. Some southern hemisphere constellations were named by European explorers in the 17th & 18th centuries. • The patterns of stars have no physical significance! Stars that appear close together may lie at very different distances. ...
Hot Horizontal Branch Stars in the Galactic Bulge. I
... in metal-poor systems. Theoretical production of metal-rich sdB’s from single-star evolution can be achieved with a rapid increase at [Fe/H] > 0 in either helium abundance (Bressan, Chiosi, & Fagotto 1994; Yi, Demarque, & Oemler 1998) or mass loss (Dorman, O’Connell, & Rood 1995; D’Cruz et al. 1996) ...
... in metal-poor systems. Theoretical production of metal-rich sdB’s from single-star evolution can be achieved with a rapid increase at [Fe/H] > 0 in either helium abundance (Bressan, Chiosi, & Fagotto 1994; Yi, Demarque, & Oemler 1998) or mass loss (Dorman, O’Connell, & Rood 1995; D’Cruz et al. 1996) ...
Ursa Major
Ursa Major /ˈɜrsə ˈmeɪdʒər/ (also known as the Great Bear and Charles' Wain) is a constellation in the northern celestial hemisphere. One of the 48 constellations listed by Ptolemy (second century AD), it remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its name, Latin for ""the greater (or larger) she-bear"", stands as a reference to and in direct contrast with Ursa Minor, ""the smaller she-bear"", with which it is frequently associated in mythology and amateur astronomy. The constellation's most recognizable asterism, a group of seven relatively bright stars commonly known as the ""Big Dipper"", ""the Wagon"" or ""the Plough"" (among others), both mimicks the shape of the lesser bear (the ""Little Dipper"") and is commonly used as a navigational pointer towards the current northern pole star, Polaris in Ursa Minor. The Big Dipper and the constellation as a whole have mythological significance in numerous world cultures, usually as a symbol of the north.The third largest constellation in the sky, Ursa Major is home to many deep-sky objects including seven Messier objects, four other NGC objects and I Zwicky 18, the youngest known galaxy in the visible universe.