Virtual HR Diagram Lab
... Draw an arrow showing the direction of increasing radius on the diagram. Label it R. (HINT: this mus be perpendicular to the isoradius lines.) ...
... Draw an arrow showing the direction of increasing radius on the diagram. Label it R. (HINT: this mus be perpendicular to the isoradius lines.) ...
of this release
... asteroid belt and a planet beyond our solar system have been found in a similar arrangement as our asteroid belt and Jupiter. Some researchers had reported that Epsilon Eridani b orbits in an exaggerated ellipse ranging between 1 and 5 astronomical units, but this means the planet would cross, and q ...
... asteroid belt and a planet beyond our solar system have been found in a similar arrangement as our asteroid belt and Jupiter. Some researchers had reported that Epsilon Eridani b orbits in an exaggerated ellipse ranging between 1 and 5 astronomical units, but this means the planet would cross, and q ...
Non-Optical Telescopes
... • Since stars form where there’s lots of dust, these scopes are great for looking inside dusty nebulas where new stars form. ...
... • Since stars form where there’s lots of dust, these scopes are great for looking inside dusty nebulas where new stars form. ...
Worksheet
... elements all the way up through uranium. This process is known as supernova nucleosynthesis. Exploding, the star seeds these elements into space. Some of the elements are picked up in second-generation stars. These will live for a shorter time since they start by bearing heavy elements within them. ...
... elements all the way up through uranium. This process is known as supernova nucleosynthesis. Exploding, the star seeds these elements into space. Some of the elements are picked up in second-generation stars. These will live for a shorter time since they start by bearing heavy elements within them. ...
The Science of Life in the Universe (Chap 2
... characteristic rate, known as its half-life, which can be measured in the laboratory. This is key to radioactive age dating, which is used to determine the ages of rocks. The oldest rocks found anywhere in the solar system are meteorites, the bits of meteoroids that survive passing through the Ear ...
... characteristic rate, known as its half-life, which can be measured in the laboratory. This is key to radioactive age dating, which is used to determine the ages of rocks. The oldest rocks found anywhere in the solar system are meteorites, the bits of meteoroids that survive passing through the Ear ...
H-R Diagram
... After the supernova blast blows off the outer layers of the star, all that is left is the central core. The core now contains a mass between 1.4 and 3.0 times the sun's mass but condensed into a volume 10- to 20km across - roughly the size of a small town on Earth. The matter in a neutron star would ...
... After the supernova blast blows off the outer layers of the star, all that is left is the central core. The core now contains a mass between 1.4 and 3.0 times the sun's mass but condensed into a volume 10- to 20km across - roughly the size of a small town on Earth. The matter in a neutron star would ...
At the Heart of the Matter: The Blue White Dwarf in M 57. Paul Temple
... spectrum is dominated by the signature of HeII, although H and higher elements may be observed in smaller amounts. DB This class may be regarded as an extension of the DO group into lower temperature regions (below around 30,000K). The cooler temperatures are insufficient to ionise helium, and so th ...
... spectrum is dominated by the signature of HeII, although H and higher elements may be observed in smaller amounts. DB This class may be regarded as an extension of the DO group into lower temperature regions (below around 30,000K). The cooler temperatures are insufficient to ionise helium, and so th ...
Exercises
... The most important way to transport energy form the interior of the star to the surface is by radiation, i.e. photons traveling from the center to the surface. (a) How long does it typically take for a photon to travel from the center of the Sun to the surface? [Hint: estimate the mean free path of ...
... The most important way to transport energy form the interior of the star to the surface is by radiation, i.e. photons traveling from the center to the surface. (a) How long does it typically take for a photon to travel from the center of the Sun to the surface? [Hint: estimate the mean free path of ...
Chapter 3 Notes
... characteristic rate, known as its half-life, which can be measured in the laboratory. This is key to radioactive age dating, which is used to determine the ages of rocks. The oldest rocks found anywhere in the solar system are meteorites, the bits of meteoroids that survive passing through the Ear ...
... characteristic rate, known as its half-life, which can be measured in the laboratory. This is key to radioactive age dating, which is used to determine the ages of rocks. The oldest rocks found anywhere in the solar system are meteorites, the bits of meteoroids that survive passing through the Ear ...
Ch 28 Class Notes
... _____________ ______________________________________________________________________________, by knowing the angle between two observed positions and the distance between the observation points. To express these measurements, astronomers use a special unit of distance called a ______________. A pars ...
... _____________ ______________________________________________________________________________, by knowing the angle between two observed positions and the distance between the observation points. To express these measurements, astronomers use a special unit of distance called a ______________. A pars ...
Distances of the Stars
... Q. How can we tell that some stars are relatively close to us? A) They appear to move back and forth against the background stars because of the Earth’s motion around the Sun. B) They appear to be very bright, so must be close. C) They are occasionally eclipsed by our moon, so they must be close. D ...
... Q. How can we tell that some stars are relatively close to us? A) They appear to move back and forth against the background stars because of the Earth’s motion around the Sun. B) They appear to be very bright, so must be close. C) They are occasionally eclipsed by our moon, so they must be close. D ...
What does the universe look like? - Harvard
... Does your galaxy image also contain stars in the field of view? Most galaxy images should also contain stars in the field of view. Which do you think is further away, the galaxy or the stars? Can you tell from your image? Many students think the stars are further away, because they appear smaller. B ...
... Does your galaxy image also contain stars in the field of view? Most galaxy images should also contain stars in the field of view. Which do you think is further away, the galaxy or the stars? Can you tell from your image? Many students think the stars are further away, because they appear smaller. B ...
PDF Version
... brightness that we can see ourselves, is equal to the intrinsic brightness divided by the square of the distance from us to the star. Astronomers used Cepheid variables in a nearby galaxy, which are all about the same distance from us, to find the correlation between the period and the intrinsic bri ...
... brightness that we can see ourselves, is equal to the intrinsic brightness divided by the square of the distance from us to the star. Astronomers used Cepheid variables in a nearby galaxy, which are all about the same distance from us, to find the correlation between the period and the intrinsic bri ...
Lecture 6-1: Schematic Evolution of Stars as seen from the core
... zones of nuclear burning: a core burning He(main) and a shell burning H (minor). When He is exhausted, the core will contract again and the envelope expands again, the AGB phase (track D) with a C,O core surrounded by a He burning shell, a He layer, and a H burning shell. ...
... zones of nuclear burning: a core burning He(main) and a shell burning H (minor). When He is exhausted, the core will contract again and the envelope expands again, the AGB phase (track D) with a C,O core surrounded by a He burning shell, a He layer, and a H burning shell. ...
Chapter 12: Measuring the Properties of Stars
... 1. An astrometric binary is an orbiting pair of stars in which the motion of one of the stars reveals the presence of the other. 2. A composite spectrum binary is a binary star system with stars having spectra different enough to distinguish them from one another. 12-6 Stellar Masses and Sizes from ...
... 1. An astrometric binary is an orbiting pair of stars in which the motion of one of the stars reveals the presence of the other. 2. A composite spectrum binary is a binary star system with stars having spectra different enough to distinguish them from one another. 12-6 Stellar Masses and Sizes from ...
ppt
... WGACAT “stars” (type unknown) re-classified; most are indeed stars, most in direction of LMC/SMC 53 new XRB candidates; 50% increase in number known in WGACAT. These are mostly high-mass XRB candidates with bright optical counterparts. IAU JD08, 2003-07-18 ...
... WGACAT “stars” (type unknown) re-classified; most are indeed stars, most in direction of LMC/SMC 53 new XRB candidates; 50% increase in number known in WGACAT. These are mostly high-mass XRB candidates with bright optical counterparts. IAU JD08, 2003-07-18 ...
The Celestial E-Sphere
... The program is written in C++ using the OpenGL graphics library. Data for 30,000 stars was read into an array from the HYG database (The Astronomy Nexus. http://astronexus.com/node/34). The stars’ positions were plotted using simple spherical geometry. They are modeled using a single star texture ma ...
... The program is written in C++ using the OpenGL graphics library. Data for 30,000 stars was read into an array from the HYG database (The Astronomy Nexus. http://astronexus.com/node/34). The stars’ positions were plotted using simple spherical geometry. They are modeled using a single star texture ma ...
1” “Sky-Notes” of the Open University Astronomy Club. September
... Although best placed in the predawn skies Mars is now presenting a large enough disc for useful observations and imaging to be made. The rotation of Mars is about half an hour slower than that of the Earth so that observations made at the same time on successive nights show only a small change in su ...
... Although best placed in the predawn skies Mars is now presenting a large enough disc for useful observations and imaging to be made. The rotation of Mars is about half an hour slower than that of the Earth so that observations made at the same time on successive nights show only a small change in su ...
Physical Science Laboratory: Skyglobe
... Turns animation on and off. When animation is on the screen automatically increments the time. Time progression can be reversed by pressing Shift-A. ...
... Turns animation on and off. When animation is on the screen automatically increments the time. Time progression can be reversed by pressing Shift-A. ...
June 2016 - Flint River Astronomy Club
... between your pupils, you can figure out how far away your thumb is. And while that measurement is unimportant, the same principle can be applied on a larger scale to distant stars and galaxies as seen from both sides of Earth’s orbit. Arc-seconds. An arc-second is a measure of distance, not time. On ...
... between your pupils, you can figure out how far away your thumb is. And while that measurement is unimportant, the same principle can be applied on a larger scale to distant stars and galaxies as seen from both sides of Earth’s orbit. Arc-seconds. An arc-second is a measure of distance, not time. On ...