ph507-16-1exo2
... inner edge begins around 25 AU away, farther than the average orbital distance of Uranus in the Solar System. Theoretically, this disk should have lasted for only around 10 million years. That it has persisted for the 20 to 200 million year lifetime of Beta Pictoris may be due to the presence of lar ...
... inner edge begins around 25 AU away, farther than the average orbital distance of Uranus in the Solar System. Theoretically, this disk should have lasted for only around 10 million years. That it has persisted for the 20 to 200 million year lifetime of Beta Pictoris may be due to the presence of lar ...
key - Scioly.org
... B0IVe. Which of the following inferences about the two stars is incorrect? [2] (a) Cygnus OB2-12 is younger than Gamma Cassiopeiea (b) Cygnus OB2-12 is a variable star, whereas Gamma Cassiopeiea is not (c) Gamma Cassiopeiea has a circumstellar disk, while Cygnus OB2-12 does not (d) Gamma Cassiopeiea ...
... B0IVe. Which of the following inferences about the two stars is incorrect? [2] (a) Cygnus OB2-12 is younger than Gamma Cassiopeiea (b) Cygnus OB2-12 is a variable star, whereas Gamma Cassiopeiea is not (c) Gamma Cassiopeiea has a circumstellar disk, while Cygnus OB2-12 does not (d) Gamma Cassiopeiea ...
Basics of Astrophysics
... are wavelength dependent, which greatly affects the signal received. The spectral response (tranmission function) of the atmosphere is shown above (section A.1), only radio and optical observations are conducted ...
... are wavelength dependent, which greatly affects the signal received. The spectral response (tranmission function) of the atmosphere is shown above (section A.1), only radio and optical observations are conducted ...
The Properties of Stars Early in its history, the universe organized
... appear in groups. One such group runs from the lower-right-hand corner (cool, lowluminosity stars) to the upper-left-hand corner (hot, high-luminosity stars). This should seem quite reasonable; in general, stars with hotter surfaces might be expected to be more luminous. This diagonal on the diagram ...
... appear in groups. One such group runs from the lower-right-hand corner (cool, lowluminosity stars) to the upper-left-hand corner (hot, high-luminosity stars). This should seem quite reasonable; in general, stars with hotter surfaces might be expected to be more luminous. This diagonal on the diagram ...
May - Hawaiian Astronomical Society
... co-discovered by Gene Shoemaker, was broken apart by a close pass by Jupiter. Many pieces of that comet, ShoemakerLevy 9, struck Jupiter over a period of days in 1994. Although the impactors were destroyed by their collisions with Jupiter’s atmosphere long before they could reach whatever solid surf ...
... co-discovered by Gene Shoemaker, was broken apart by a close pass by Jupiter. Many pieces of that comet, ShoemakerLevy 9, struck Jupiter over a period of days in 1994. Although the impactors were destroyed by their collisions with Jupiter’s atmosphere long before they could reach whatever solid surf ...
Birth of Stars - High Energy Physics at Wayne State
... Low mass stars are more common. For main sequence stars, mass and luminosity are related such that high mass stars have high luminosity and low mass stars have low luminosity. Galaxies, like the Milky Way, contain enough gas and dust to create billions of new stars. February 14, 2006 ...
... Low mass stars are more common. For main sequence stars, mass and luminosity are related such that high mass stars have high luminosity and low mass stars have low luminosity. Galaxies, like the Milky Way, contain enough gas and dust to create billions of new stars. February 14, 2006 ...
Similarities Between Electric and Gravitational Forces • Coulomb’s force: q F
... H-R Diagram – Spectra of Stars ...
... H-R Diagram – Spectra of Stars ...
11 Celestial Objects and Events Every Stargazer Should See
... a passing star starts a comet on a long journey towards the inner solar system. Although a half-dozen or more comets come to the inner solar system each year, most are too faint to see without a telescope. But if the timing and mechanics are right, such a comet may put on a spectacular celestial sho ...
... a passing star starts a comet on a long journey towards the inner solar system. Although a half-dozen or more comets come to the inner solar system each year, most are too faint to see without a telescope. But if the timing and mechanics are right, such a comet may put on a spectacular celestial sho ...
PowerPoint
... • Quantum mechanics– electrons can be wave-like – Electrons around nucleus have certain orbits– defines emission and absorption of each atom – When excited, atoms emit certain lines (like in class)– fingerprint or barcode of atom ...
... • Quantum mechanics– electrons can be wave-like – Electrons around nucleus have certain orbits– defines emission and absorption of each atom – When excited, atoms emit certain lines (like in class)– fingerprint or barcode of atom ...
Earth passes between
... Jupiter is sometimes called a failed star. So when the sun goes down on this March night, you might — if you’re fanciful enough — imagine bright Jupiter as a tiny sun all night long But you would need at least 80 Jupiters – rolled into a ball – to be hot enough inside for thermonuclear reactions to ...
... Jupiter is sometimes called a failed star. So when the sun goes down on this March night, you might — if you’re fanciful enough — imagine bright Jupiter as a tiny sun all night long But you would need at least 80 Jupiters – rolled into a ball – to be hot enough inside for thermonuclear reactions to ...
The ISM
... Temperatures 10 – 100 K. In such a cloud: – If a star’s worth of matter should clump together in a denser region than the rest of the cloud: – Gravitational attraction will win out over their combined pressure. – The clump will begin to collapse. – The cold cloud will fragment. ...
... Temperatures 10 – 100 K. In such a cloud: – If a star’s worth of matter should clump together in a denser region than the rest of the cloud: – Gravitational attraction will win out over their combined pressure. – The clump will begin to collapse. – The cold cloud will fragment. ...
Astron 104 Laboratory #11 The Scale of the Milky Way
... of each galaxy. Don’t worry about the direction (left/right/up/down) for each galaxy; just place a dot an appropriate distance from the Sun. Galaxy Distance from the Sun (lt-yr) Sagittarius Dwarf Galaxy (closest to Milky Way) ...
... of each galaxy. Don’t worry about the direction (left/right/up/down) for each galaxy; just place a dot an appropriate distance from the Sun. Galaxy Distance from the Sun (lt-yr) Sagittarius Dwarf Galaxy (closest to Milky Way) ...
Spectral Variations of Three RV Tauri Stars Donald K. Walter
... these stars including observations from 2003 to the present. Changes on the order of several spectral types and luminosity classes are observed. We discuss each object’s shift in position on the L vs. T diagram as a function of the phase of their light curve. Our photometric data is taken from the A ...
... these stars including observations from 2003 to the present. Changes on the order of several spectral types and luminosity classes are observed. We discuss each object’s shift in position on the L vs. T diagram as a function of the phase of their light curve. Our photometric data is taken from the A ...
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.