Procedurally Generating an Artificial Galaxy
... actually used. Among them, the linear congruential generator is the most common. In the same way that you can choose how many times to run the seeds through the middle-square algorithm, the linear congruential generator can be configured in different ways with different results, some of which are be ...
... actually used. Among them, the linear congruential generator is the most common. In the same way that you can choose how many times to run the seeds through the middle-square algorithm, the linear congruential generator can be configured in different ways with different results, some of which are be ...
How Close is our Nearest Neighbor
... When Shapley did his experiment, he had to measure the distances to globular clusters. To do this, he used Henrietta Leavitt’s discovery that certain variable stars obeyed a period-luminosity law so that their luminosities could be determined by measuring their periods of variation. These variable s ...
... When Shapley did his experiment, he had to measure the distances to globular clusters. To do this, he used Henrietta Leavitt’s discovery that certain variable stars obeyed a period-luminosity law so that their luminosities could be determined by measuring their periods of variation. These variable s ...
PPT - El Camino College
... • Event horizon / escape speed – What happens if further away than event horizon? ...
... • Event horizon / escape speed – What happens if further away than event horizon? ...
constellations are not real!
... For example, the bright red star in the shoulder region of the constellation Orion (the Hunter) is called Betelgeuse, which comes from Arabic and means (roughly) "the armpit of the mighty one" (see adjacent figure). The brightest star in Orion is a blue-white star called Rigel that is situated at th ...
... For example, the bright red star in the shoulder region of the constellation Orion (the Hunter) is called Betelgeuse, which comes from Arabic and means (roughly) "the armpit of the mighty one" (see adjacent figure). The brightest star in Orion is a blue-white star called Rigel that is situated at th ...
Modified True/False - Indicate whether the statement is true or false
... ____ 21. HS-ESS1-1 Which of the following stages is the earliest in the development of a star? a. Nebula c. Neutron star b. Protostar d. Giant ____ 22. HS-ESS1-1 All stars, including the Sun, have the following identical composition: a. 73 percent hydrogen; 25 percent helium; and 2 percent oxygen b. ...
... ____ 21. HS-ESS1-1 Which of the following stages is the earliest in the development of a star? a. Nebula c. Neutron star b. Protostar d. Giant ____ 22. HS-ESS1-1 All stars, including the Sun, have the following identical composition: a. 73 percent hydrogen; 25 percent helium; and 2 percent oxygen b. ...
The Stars education kit - Student activities 11-20
... disk. Material closer to the black hole is spinning faster than the material at the edge of the accretion disk. This generates friction, heating the disk to temperatures over 100 million degrees C. Matter this hot emits X-ray radiation. Black holes can also be found if a star is discovered to be orb ...
... disk. Material closer to the black hole is spinning faster than the material at the edge of the accretion disk. This generates friction, heating the disk to temperatures over 100 million degrees C. Matter this hot emits X-ray radiation. Black holes can also be found if a star is discovered to be orb ...
The Life And Times Of A Star
... 10,000 times weaker (because the surface is over 100 times farther from the center). The escape velocity from the sun’s surface is reduced by 10 times. The fastest moving gas atoms at the sun’s surface can now easily escape into space. ...
... 10,000 times weaker (because the surface is over 100 times farther from the center). The escape velocity from the sun’s surface is reduced by 10 times. The fastest moving gas atoms at the sun’s surface can now easily escape into space. ...
Sample Final #1
... discoveries or phenomena did he not yet know about, which would change the calculated ages of these objects dramatically?) ...
... discoveries or phenomena did he not yet know about, which would change the calculated ages of these objects dramatically?) ...
HR DIAGRAM (Page 1) - McDonald Observatory
... instance, the faintest stars our eyes alone may see are apparent magnitude 6. A fairly bright star like Sirius is magnitude -1.4, while the sun is a blinding -26. For each single step up or down on the magnitude scale, the brightness changes by a factor of 2.512. And for every five steps, the bright ...
... instance, the faintest stars our eyes alone may see are apparent magnitude 6. A fairly bright star like Sirius is magnitude -1.4, while the sun is a blinding -26. For each single step up or down on the magnitude scale, the brightness changes by a factor of 2.512. And for every five steps, the bright ...
Nebulae
... The Sun is just a star, an average star. It just looks so big and bright, because it is so close, compared with other stars. ...
... The Sun is just a star, an average star. It just looks so big and bright, because it is so close, compared with other stars. ...
Stars are classified by their TEMPERATURE (color) SPECTRAL
... wavelengths it emits, we would expect luminosity plotted against temperature to make a straight line… There should be a one-to-one correlation between luminosity and temperature ...
... wavelengths it emits, we would expect luminosity plotted against temperature to make a straight line… There should be a one-to-one correlation between luminosity and temperature ...
22 pm - Starmap
... As a starting point, face North, holding the map in your eyesight direction, with its North down. As you change the direction, rotate the map accordingly. The objects listed on the first page can be observed with naked eyes, in clear skies, with moderate light pollution. Close your eyes one minute a ...
... As a starting point, face North, holding the map in your eyesight direction, with its North down. As you change the direction, rotate the map accordingly. The objects listed on the first page can be observed with naked eyes, in clear skies, with moderate light pollution. Close your eyes one minute a ...
Events: - Temecula Valley Astronomers
... plane of the Solar System. The dust particles originate from myriad collisions and disintegrations of asteroids, comets, and planets, going back to the origins of the Solar System several billion years ago. Related phenomena are the Kordylewski clouds. I’m betting that most of you have never heard o ...
... plane of the Solar System. The dust particles originate from myriad collisions and disintegrations of asteroids, comets, and planets, going back to the origins of the Solar System several billion years ago. Related phenomena are the Kordylewski clouds. I’m betting that most of you have never heard o ...
Recurring theme: conservation of energy
... The core has just started to burn a new element All nuclear burning is slowing down The inner core temperature is cooling The inner core is collapsing and heating up; shell burning is increasing ...
... The core has just started to burn a new element All nuclear burning is slowing down The inner core temperature is cooling The inner core is collapsing and heating up; shell burning is increasing ...
My power point presentation on spectroscopy of stars (ppt file)
... Some modelling results • For some stars the discrepancies are quite severe, and we get very uncertain parameter values • An example is the magnetic star HD 66318 in the open cluster NGC 2516 • This star shows strong Zeeman splitting in almost every spectral line, due to a magnetic field of 14.5 kG ...
... Some modelling results • For some stars the discrepancies are quite severe, and we get very uncertain parameter values • An example is the magnetic star HD 66318 in the open cluster NGC 2516 • This star shows strong Zeeman splitting in almost every spectral line, due to a magnetic field of 14.5 kG ...
star - Cloudfront.net
... 2a. Students know why the solar system is located in an outer edge of the disc-shaped Milky Way galaxy, which spans 100,000 light years. 2b. Students know galaxies are made of billions of stars and comprise most of the visible mass of the universe. 2c. Students know the evidence indicating that all ...
... 2a. Students know why the solar system is located in an outer edge of the disc-shaped Milky Way galaxy, which spans 100,000 light years. 2b. Students know galaxies are made of billions of stars and comprise most of the visible mass of the universe. 2c. Students know the evidence indicating that all ...
Fixed Stars
... Arcturus, it is not in the earthly catalog of starry astrological influences, for the time being. But the Creator God of this star seems to be very powerful on the Cosmic Mental Plane. The main influence here is from visiting or migrated humanlike intelligences from planets around Arcturus. Just as ...
... Arcturus, it is not in the earthly catalog of starry astrological influences, for the time being. But the Creator God of this star seems to be very powerful on the Cosmic Mental Plane. The main influence here is from visiting or migrated humanlike intelligences from planets around Arcturus. Just as ...
Spiral Galaxies - Astronomy Centre
... • Spiral disks are relatively blue due to light from hot, massive, young stars • Elliptical galaxies are relatively red due to the dominant population of older, lower-mass stars ...
... • Spiral disks are relatively blue due to light from hot, massive, young stars • Elliptical galaxies are relatively red due to the dominant population of older, lower-mass stars ...
Stellar kinematics
Stellar kinematics is the study of the movement of stars without needing to understand how they acquired their motion. This differs from stellar dynamics, which takes into account gravitational effects. The motion of a star relative to the Sun can provide useful information about the origin and age of a star, as well as the structure and evolution of the surrounding part of the Milky Way.In astronomy, it is widely accepted that most stars are born within molecular clouds known as stellar nurseries. The stars formed within such a cloud compose open clusters containing dozens to thousands of members. These clusters dissociate over time. Stars that separate themselves from the cluster's core are designated as members of the cluster's stellar association. If the remnant later drifts through the Milky Way as a coherent assemblage, then it is termed a moving group.