HW #5 Answers (Due 9/29)
... make Helium, the protons have to over come the repulsive force between them. This means that they have to be moving extremely fast or their average kinetic energy has to be very large. That means a high temperature. Also, collisions have to be head-on collisions. If not the particles will just scatt ...
... make Helium, the protons have to over come the repulsive force between them. This means that they have to be moving extremely fast or their average kinetic energy has to be very large. That means a high temperature. Also, collisions have to be head-on collisions. If not the particles will just scatt ...
AST121 Introduction to Astronomy
... • Local space-time is curved by the presence of mass – light (and everything else) travels in a curved space-time. – objects left to themselves travel in straight lines – a straight-line on a curved surface is a geodesic, or great circle ...
... • Local space-time is curved by the presence of mass – light (and everything else) travels in a curved space-time. – objects left to themselves travel in straight lines – a straight-line on a curved surface is a geodesic, or great circle ...
Parallax - High Point University
... • Local space-time is curved by the presence of mass – light (and everything else) travels in a curved space-time. – objects left to themselves travel in straight lines – a straight-line on a curved surface is a geodesic, or great circle ...
... • Local space-time is curved by the presence of mass – light (and everything else) travels in a curved space-time. – objects left to themselves travel in straight lines – a straight-line on a curved surface is a geodesic, or great circle ...
Life Cycle of a Star
... A small mass star uses less fuel so it lasts longer so . . . The smaller the mass the longer it lasts ...
... A small mass star uses less fuel so it lasts longer so . . . The smaller the mass the longer it lasts ...
7th Grade Astronomy Study Guide
... a. to avoid interference from the Earth’s atmosphere b. to avoid noise pollution c. to reduce air pollution d. to get closer to objects in space ____ 27. An advantage of reflecting telescopes over refracting telescopes is that a. they use lenses to focus light. b. mirrors only reflect certain colors ...
... a. to avoid interference from the Earth’s atmosphere b. to avoid noise pollution c. to reduce air pollution d. to get closer to objects in space ____ 27. An advantage of reflecting telescopes over refracting telescopes is that a. they use lenses to focus light. b. mirrors only reflect certain colors ...
Supernovae, Neutron Stars, Black Holes
... While fusion of elements lighter than _______ produce energy, fusion of this element produces no energy, triggering the implosion of the core. ...
... While fusion of elements lighter than _______ produce energy, fusion of this element produces no energy, triggering the implosion of the core. ...
The coolest White Dwarf— older than the age of the universe?
... steadily loses its outer gasses and ends its life as a ball of compact degenerate electron gas or a White Dwarf (WD). It may begin this stage with a very high temperature, say 50,000 K and it steadily cools over time following a well-known cooling rate. Eventually this object will cool so much that ...
... steadily loses its outer gasses and ends its life as a ball of compact degenerate electron gas or a White Dwarf (WD). It may begin this stage with a very high temperature, say 50,000 K and it steadily cools over time following a well-known cooling rate. Eventually this object will cool so much that ...
Sample Midterm - IUPUI Physics
... 13) Most of the Carbon, Oxygen, and Nitrogen in out bodies comes from: A) the birth of our universe (big bang) B) cores of stars like our sun C) from the outer parts of massive stars thrown into space D) fairly equally from all of these three sources 14) When a 50 solar mass star dies what is left ...
... 13) Most of the Carbon, Oxygen, and Nitrogen in out bodies comes from: A) the birth of our universe (big bang) B) cores of stars like our sun C) from the outer parts of massive stars thrown into space D) fairly equally from all of these three sources 14) When a 50 solar mass star dies what is left ...
Life Cycle of a Star
... A small mass star uses less fuel so it lasts longer so . . . The smaller the mass the longer it lasts ...
... A small mass star uses less fuel so it lasts longer so . . . The smaller the mass the longer it lasts ...
ref H-R Spectral types
... Sirius A is a type A star, but it has a dwarf companion (Sirius B) which is a type O but is too small to see here. Other examples include Meissa, or Orionis lambda in the constellation Orion (actually, in Orion’s helmet!). ...
... Sirius A is a type A star, but it has a dwarf companion (Sirius B) which is a type O but is too small to see here. Other examples include Meissa, or Orionis lambda in the constellation Orion (actually, in Orion’s helmet!). ...
Down Under from North Florida
... No, one cannot see the Magellanic Clouds from Florida including the enormous Tarantula Nebula or the magnificent 47 Tucanae globular cluster. Yet with careful planning, several interesting and beautiful southern sky objects can be found in far southern skies. For example, the sky’s second brightest ...
... No, one cannot see the Magellanic Clouds from Florida including the enormous Tarantula Nebula or the magnificent 47 Tucanae globular cluster. Yet with careful planning, several interesting and beautiful southern sky objects can be found in far southern skies. For example, the sky’s second brightest ...
Old Final
... B) the star spins and beams of radio waves cross the Earth periodically C) the star accretes matter causing periodic runaway fusion that we observe as pulses D) the star's binary companion periodically blocks the pulsar's constant radio emission E) a black hole near the star absorbs the pulsar's ene ...
... B) the star spins and beams of radio waves cross the Earth periodically C) the star accretes matter causing periodic runaway fusion that we observe as pulses D) the star's binary companion periodically blocks the pulsar's constant radio emission E) a black hole near the star absorbs the pulsar's ene ...
Science Assessment Stage H--Performance Standard 12F-H
... Time requirements: 1 class period for initial star card activity; 1-2 class period(s) for preparation of graphic display for star data groupings; 1 class period for class presentation. Resources: • Star cards printed on stock or construction paper (yellow, orange, white, red, light and dark blue). • ...
... Time requirements: 1 class period for initial star card activity; 1-2 class period(s) for preparation of graphic display for star data groupings; 1 class period for class presentation. Resources: • Star cards printed on stock or construction paper (yellow, orange, white, red, light and dark blue). • ...
Highlights of the Month - Bridgend Astronomical Society
... swan. It is nearly 2000 light years away and appears so bright only because it gives out around 80,000 times as much light as our Sun. In fact if Deneb where as close as the brightest star in the northern sky, Sirius, it would appear as brilliant as the half moon and the sky would never be really da ...
... swan. It is nearly 2000 light years away and appears so bright only because it gives out around 80,000 times as much light as our Sun. In fact if Deneb where as close as the brightest star in the northern sky, Sirius, it would appear as brilliant as the half moon and the sky would never be really da ...
1 - Quia
... c. the Milky Way. b. an asteroid belt. d. the moon’s orbit. 26. Which of the following is not a characteristic of gas giants? a. thick, gaseous atmospheres c. ring structures b. many satellites d. rocky surfaces 27. The moon orbits Earth at a distance of about ____________ kilometers. a. 4000 c. 400 ...
... c. the Milky Way. b. an asteroid belt. d. the moon’s orbit. 26. Which of the following is not a characteristic of gas giants? a. thick, gaseous atmospheres c. ring structures b. many satellites d. rocky surfaces 27. The moon orbits Earth at a distance of about ____________ kilometers. a. 4000 c. 400 ...
The winter sky over Bosham
... the most recognisable constellations in the night sky. Unlike most constellations, which are mostly random groupings of stars that happen to appear together in the sky, the stars of Orion are almost all related, outlining one of the closest star-forming regions to Earth. The constellation contains t ...
... the most recognisable constellations in the night sky. Unlike most constellations, which are mostly random groupings of stars that happen to appear together in the sky, the stars of Orion are almost all related, outlining one of the closest star-forming regions to Earth. The constellation contains t ...
14_creationism
... • Birth: collapse of gas cloud forms protostar. • Main sequence: center of star becomes hot ...
... • Birth: collapse of gas cloud forms protostar. • Main sequence: center of star becomes hot ...
Document
... bright it looks from Earth, you can determine how far away it must be to look that faint. • For any star in the sky, we KNOW: – Apparent Magnitude (m) – Spectral Type (O, B, A, F, G, K, M) – Luminosity Class (Main Sequence, Giant, etc…). These are denoted by a roman numeral (V, III, I,…). ...
... bright it looks from Earth, you can determine how far away it must be to look that faint. • For any star in the sky, we KNOW: – Apparent Magnitude (m) – Spectral Type (O, B, A, F, G, K, M) – Luminosity Class (Main Sequence, Giant, etc…). These are denoted by a roman numeral (V, III, I,…). ...
Perseus (constellation)
Perseus, named after the Greek mythological hero Perseus, is a constellation in the northern sky. It was one of 48 listed by the 2nd-century astronomer Ptolemy and among the 88 modern constellations defined by the International Astronomical Union (IAU). It is located in the northern celestial hemisphere near several other constellations named after legends surrounding Perseus, including Andromeda to the west and Cassiopeia to the north. Perseus is also bordered by Aries and Taurus to the south, Auriga to the east, Camelopardalis to the north, and Triangulum to the west.The galactic plane of the Milky Way passes through Perseus but is mostly obscured by molecular clouds. The constellation's brightest star is the yellow-white supergiant Alpha Persei (also called Mirfak), which shines at magnitude 1.79. It and many of the surrounding stars are members of an open cluster known as the Alpha Persei Cluster. The best-known star, however, is Algol (Beta Persei), linked with ominous legends because of its variability, which is noticeable to the naked eye. Rather than being an intrinsically variable star, it is an eclipsing binary. Other notable star systems in Perseus include X Persei, a binary system containing a neutron star, and GK Persei, a nova that peaked at magnitude 0.2 in 1901. The Double Cluster, comprising two open clusters quite near each other in the sky, was known to the ancient Chinese. The constellation gives its name to the Perseus Cluster (Abell 426), a massive galaxy cluster located 250 million light-years from Earth. It hosts the radiant of the annual Perseids meteor shower—one of the most prominent meteor showers in the sky.