スライド 1 - STScI
... monitoring an area of 3 square degrees along the bar in the LMC, and also an area of 1 square degree in the central part of the SMC. In the last 10 years, we observed these areas about 80-90 and 100-110 times for LMC and SMC, respectively. As a result, we obtained time series data with more than 3,0 ...
... monitoring an area of 3 square degrees along the bar in the LMC, and also an area of 1 square degree in the central part of the SMC. In the last 10 years, we observed these areas about 80-90 and 100-110 times for LMC and SMC, respectively. As a result, we obtained time series data with more than 3,0 ...
doc - Pocket Stars
... are performed for proper motions and parallax. Planet ephemeris data from Jet Propulsion Laboratory using the DE405 database. DE405 is JPL’s latest planetary ephemeris with correction for both nutations and librations. DE405 uses the J2000 International Celestial Reference Frame (ICRF). The portion ...
... are performed for proper motions and parallax. Planet ephemeris data from Jet Propulsion Laboratory using the DE405 database. DE405 is JPL’s latest planetary ephemeris with correction for both nutations and librations. DE405 uses the J2000 International Celestial Reference Frame (ICRF). The portion ...
Your Star: _____________________ d = 1 / p
... Winter Stars – The brightest and most spectacular stars in the sky belong to the winter. Betelgeuse, the ridiculously huge supergiant mentioned in lecture; Meissa, a rare superhot O star in Orion's belt; and dog star Sirius: the brightest of all stars are all winter stars. These stars are already vi ...
... Winter Stars – The brightest and most spectacular stars in the sky belong to the winter. Betelgeuse, the ridiculously huge supergiant mentioned in lecture; Meissa, a rare superhot O star in Orion's belt; and dog star Sirius: the brightest of all stars are all winter stars. These stars are already vi ...
Contents ISP 205 Section 2 Study Guide for Test 3 28 March 2007
... forever. 15. Why are elements with 12, 16, 20, 24, 28 nuclei more abundant in the universe? They are made by adding helium4 to the parent nucleus. 16. When will the earth be too hot for humans? In 1-4Byr, when sun is still a MS star. ...
... forever. 15. Why are elements with 12, 16, 20, 24, 28 nuclei more abundant in the universe? They are made by adding helium4 to the parent nucleus. 16. When will the earth be too hot for humans? In 1-4Byr, when sun is still a MS star. ...
Chapter 17 Star Stuff How does a star`s mass affect nuclear fusion
... carbon in a shell around the carbon core, and H fuses to He in a shell around the helium layer • This double-shell burning stage never reaches equilibrium—fusion rate periodically spikes upward in a series of thermal pulses • With each spike, convection dredges carbon up from core and transports it ...
... carbon in a shell around the carbon core, and H fuses to He in a shell around the helium layer • This double-shell burning stage never reaches equilibrium—fusion rate periodically spikes upward in a series of thermal pulses • With each spike, convection dredges carbon up from core and transports it ...
Chapter 17 Star Stuff
... carbon in a shell around the carbon core, and H fuses to He in a shell around the helium layer • This double-shell burning stage never reaches equilibrium—fusion rate periodically spikes upward in a series of thermal pulses • With each spike, convection dredges carbon up from core and transports it ...
... carbon in a shell around the carbon core, and H fuses to He in a shell around the helium layer • This double-shell burning stage never reaches equilibrium—fusion rate periodically spikes upward in a series of thermal pulses • With each spike, convection dredges carbon up from core and transports it ...
If you wish to a copy of this months Night Sky News
... having a separation of only 6.4 million km. Both are class-A main sequence stars, about twice the size of the sun. They can be separated with a good small telescope. Castor B is now also known to be a spectroscopic binary whose components are even closer, at only 4.5 million km distance and having a ...
... having a separation of only 6.4 million km. Both are class-A main sequence stars, about twice the size of the sun. They can be separated with a good small telescope. Castor B is now also known to be a spectroscopic binary whose components are even closer, at only 4.5 million km distance and having a ...
Astronomy 200 Problem Set No
... a set of axes that will be filled with a spectrum after clicking on "Start/Resume Count". Click on Start and watch what happens. You should see the spectrum build up as photons are collected. You need to record the star’s name, and apparent magnitude. Save the spectrum and note the filename. Plan on ...
... a set of axes that will be filled with a spectrum after clicking on "Start/Resume Count". Click on Start and watch what happens. You should see the spectrum build up as photons are collected. You need to record the star’s name, and apparent magnitude. Save the spectrum and note the filename. Plan on ...
Barium Stars Observed with the Coude Echelle Spectrometer
... The Optical Pulsar H 2252-035 (AO Psc) M. KUbiak, Warsaw University Observatory, Poland, and Hoher List Observatorium, FRG The optical counterpart of the pulsating X-ray source H 2252035 appeared to be an interesting object for optical astronomers also. In the X-ray domain it shows the same characte ...
... The Optical Pulsar H 2252-035 (AO Psc) M. KUbiak, Warsaw University Observatory, Poland, and Hoher List Observatorium, FRG The optical counterpart of the pulsating X-ray source H 2252035 appeared to be an interesting object for optical astronomers also. In the X-ray domain it shows the same characte ...
"Stars" pdf file
... To discover the system which is able to heat so much gas and for such a long time we have to dive into the microscopic world of atomic nuclei. Atoms have a precise structure: they have a nucleus formed by particles called protons and neutrons, around which orbits a cloud of smaller particles called ...
... To discover the system which is able to heat so much gas and for such a long time we have to dive into the microscopic world of atomic nuclei. Atoms have a precise structure: they have a nucleus formed by particles called protons and neutrons, around which orbits a cloud of smaller particles called ...
Sample pages 2 PDF
... some aspects of the current understanding of the history of the universe. Evidence arising from observations of the rate at which stars and galaxies are receding from the earth indicates that, approximately 14 billion years ago (the exact time remains in some dispute) the universe as we observe it w ...
... some aspects of the current understanding of the history of the universe. Evidence arising from observations of the rate at which stars and galaxies are receding from the earth indicates that, approximately 14 billion years ago (the exact time remains in some dispute) the universe as we observe it w ...
Picture: Alnitak is the left-hand star in Orion`s Belt. Image: NASA
... carbon/oxygen ratios that are typically four to five times higher than those of normal red giants and show little trace of the light metal oxide bands that are the usual red giant hallmark. They resemble S stars in their relative proportion of heavy and light metals, but contain far more carbon in t ...
... carbon/oxygen ratios that are typically four to five times higher than those of normal red giants and show little trace of the light metal oxide bands that are the usual red giant hallmark. They resemble S stars in their relative proportion of heavy and light metals, but contain far more carbon in t ...
btg_2016_astromony
... constellation Orion, are blue. Others, like Altair in Aquila, are white. Arcturus, a bright star in the northern spring sky, is yellow-orange. Yet others, like Betelguese in Orion or Antares in Scorpius are a deeper orange-red. The closest neighboring stars to our sun Alpha (one of the pointer stars ...
... constellation Orion, are blue. Others, like Altair in Aquila, are white. Arcturus, a bright star in the northern spring sky, is yellow-orange. Yet others, like Betelguese in Orion or Antares in Scorpius are a deeper orange-red. The closest neighboring stars to our sun Alpha (one of the pointer stars ...
Astronomy Assignment #1
... In the core of a main sequence stars core h-burning is happening…that is the fusion of hydrogen into helium through the p-p chain in the core. The main sequence stars are so stable, only very slowly changing their luminosity, radius and temperature while on the main sequence, because of the natural ...
... In the core of a main sequence stars core h-burning is happening…that is the fusion of hydrogen into helium through the p-p chain in the core. The main sequence stars are so stable, only very slowly changing their luminosity, radius and temperature while on the main sequence, because of the natural ...
Encyclopedia of Optical Engineering Stellar Evolution
... In this configuration, the electrons become closely ‘‘stacked’’ in space, separated by the Pauli exclusion principle: No two electrons can have the same four quantum numbers relating to energy and motion in a very tiny volume. Basically, the electrons can only be pushed so close together. The electr ...
... In this configuration, the electrons become closely ‘‘stacked’’ in space, separated by the Pauli exclusion principle: No two electrons can have the same four quantum numbers relating to energy and motion in a very tiny volume. Basically, the electrons can only be pushed so close together. The electr ...
Lab 4
... objects to determine the objects’ properties. Two properties you will investigate later are distance and age. The objects you will use are stars in various clusters in the Milky Way galaxy and beyond. This is known as the Color Index method of distance determination. As you will see, the color of a ...
... objects to determine the objects’ properties. Two properties you will investigate later are distance and age. The objects you will use are stars in various clusters in the Milky Way galaxy and beyond. This is known as the Color Index method of distance determination. As you will see, the color of a ...
Lect16-3-28-and-30-1..
... see an hourglass-shaped bubble being blown into space by the supernova’s progenitor star. The rings are probably on the surface of the hourglass shape. The hourglass was formed by a wind of slow-moving gas that was ejected by the star when it was a red supergiant, and a much faster wind of gas that ...
... see an hourglass-shaped bubble being blown into space by the supernova’s progenitor star. The rings are probably on the surface of the hourglass shape. The hourglass was formed by a wind of slow-moving gas that was ejected by the star when it was a red supergiant, and a much faster wind of gas that ...
Agenda - Relativity Group
... • Why are the life stories of close binary stars different from those of single, isolated stars? • The transfer of mass from one star to its companion affects the life history (evolution) of both stars. • What is the Algol Paradox? • The star Algol is a binary star in which the lower mass star is in ...
... • Why are the life stories of close binary stars different from those of single, isolated stars? • The transfer of mass from one star to its companion affects the life history (evolution) of both stars. • What is the Algol Paradox? • The star Algol is a binary star in which the lower mass star is in ...
Solutions to Homework #4, AST 203, Spring 2012
... aren’t defined, if important steps of explanation are missing, etc. If the answer is written down without *any* context whatsoever, take off 1/3 of the points. One point off per question for inappropriately high precision (which usually means more than 2 significant figures in this homework). No mor ...
... aren’t defined, if important steps of explanation are missing, etc. If the answer is written down without *any* context whatsoever, take off 1/3 of the points. One point off per question for inappropriately high precision (which usually means more than 2 significant figures in this homework). No mor ...
Jul - Wadhurst Astronomical Society
... the brightest in the constellation but compared in size, red Betelgeuse is by far the largest. We were told that Betelgeuse is predicted to become a super-nova soon and at 640 light years away, may already have done so, although the light hasn’t reached us yet. On the same size scale by comparison, ...
... the brightest in the constellation but compared in size, red Betelgeuse is by far the largest. We were told that Betelgeuse is predicted to become a super-nova soon and at 640 light years away, may already have done so, although the light hasn’t reached us yet. On the same size scale by comparison, ...
Chapter 3 Cosmology 3.1 The Doppler effect
... The Andromeda galaxy is the nearest large galaxy to the Milky Way. Andromeda can just about be seen by the unaided eye on a clear night. By taking photographs of Andromeda using a large telescope, Edwin Hubble was able to identify Cepheid variable stars in Andromeda. These stars vary in brightness w ...
... The Andromeda galaxy is the nearest large galaxy to the Milky Way. Andromeda can just about be seen by the unaided eye on a clear night. By taking photographs of Andromeda using a large telescope, Edwin Hubble was able to identify Cepheid variable stars in Andromeda. These stars vary in brightness w ...
Big Bang Theory
... Get the Gizmo ready: On the STARS tab, check that Region A: NGC 224 (Andromeda Galaxy) is selected. If not, click Return to map and select Region A. ...
... Get the Gizmo ready: On the STARS tab, check that Region A: NGC 224 (Andromeda Galaxy) is selected. If not, click Return to map and select Region A. ...
Slide 1
... diagram, a pattern begins to form: These are the 80 closest stars to us; note the dashed lines of constant radius. ...
... diagram, a pattern begins to form: These are the 80 closest stars to us; note the dashed lines of constant radius. ...
17_LectureOutline
... diagram, a pattern begins to form: These are the 80 closest stars to us; note the dashed lines of constant radius. ...
... diagram, a pattern begins to form: These are the 80 closest stars to us; note the dashed lines of constant radius. ...
Lyra
Lyra (/ˈlaɪərə/; Latin for lyre, from Greek λύρα) is a small constellation. It is one of 48 listed by the 2nd century astronomer Ptolemy, and is one of the 88 constellations recognized by the International Astronomical Union. Lyra was often represented on star maps as a vulture or an eagle carrying a lyre, and hence sometimes referred to as Aquila Cadens or Vultur Cadens. Beginning at the north, Lyra is bordered by Draco, Hercules, Vulpecula, and Cygnus. Lyra is visible from the northern hemisphere from spring through autumn, and nearly overhead, in temperate latitudes, during the summer months. From the southern hemisphere, it is visible low in the northern sky during the winter months.The lucida or brightest star—and one of the brightest stars in the sky—is the white main sequence star Vega, a corner of the Summer Triangle. Beta Lyrae is the prototype of a class of stars known as Beta Lyrae variables, binary stars so close to each other that they become egg-shaped and material flows from one to the other. Epsilon Lyrae, known informally as the Double Double, is a complex multiple star system. Lyra also hosts the Ring Nebula, the second-discovered and best-known planetary nebula.