Comments from John Saunders.
... Although when we look up at the two pointers two the Southern Cross (Alpha & Beta Centauri – Alpha being the brightest) what we don’t realise is that Alpha Centauri is actually a double or binary star. In other words, it is not one but two stars and they rotate around each others centre of gravity e ...
... Although when we look up at the two pointers two the Southern Cross (Alpha & Beta Centauri – Alpha being the brightest) what we don’t realise is that Alpha Centauri is actually a double or binary star. In other words, it is not one but two stars and they rotate around each others centre of gravity e ...
Lab 2
... Vega (in Lyra). This is spectra type A0, served as the basis for the stellar magnitude system (its m() = 0 at all by definition. Albireo (in Cygnus). Put both members of this binary on the slit. HD 192183 (in Cygnus): The central star that ejected the nebula you reduced for Lab 1. NGC 6888. ...
... Vega (in Lyra). This is spectra type A0, served as the basis for the stellar magnitude system (its m() = 0 at all by definition. Albireo (in Cygnus). Put both members of this binary on the slit. HD 192183 (in Cygnus): The central star that ejected the nebula you reduced for Lab 1. NGC 6888. ...
Chapter 11
... a. About 40 weeks. b. About 30,000 years. c. About 30 million years. d. About 1 billion years. e. About 5 billion years. ...
... a. About 40 weeks. b. About 30,000 years. c. About 30 million years. d. About 1 billion years. e. About 5 billion years. ...
Project 3. Colour in Astronomy
... The first step is to obtain instrumental and absolute BVR magnitudes. This is accomplished by observing at least one standard star with known magnitudes on the standard system along with your night’s data and using it to determine the transformation equations. Often the st ...
... The first step is to obtain instrumental and absolute BVR magnitudes. This is accomplished by observing at least one standard star with known magnitudes on the standard system along with your night’s data and using it to determine the transformation equations. Often the st ...
key for the HR Diagram Lab Handout
... be surprised that stars come in so many. These observations will likely also include temperature, brightness, and lifespan information. If your students are not familiar with or confident in scientific notation, this is a good time to talk about what numbers like 104 and 1011 mean. ** 2. Work togeth ...
... be surprised that stars come in so many. These observations will likely also include temperature, brightness, and lifespan information. If your students are not familiar with or confident in scientific notation, this is a good time to talk about what numbers like 104 and 1011 mean. ** 2. Work togeth ...
Killer Skies
... billion Kelvin. This pattern of core ignition and shell ignition continues with a series of heavier nuclei as fusion fuel. At higher temperatures than carbon fusion, nuclei of oxygen, neon, and magnesium fuse to make silicon and sulfur. At even higher temperatures, silicon can fuse to make iron. Thu ...
... billion Kelvin. This pattern of core ignition and shell ignition continues with a series of heavier nuclei as fusion fuel. At higher temperatures than carbon fusion, nuclei of oxygen, neon, and magnesium fuse to make silicon and sulfur. At even higher temperatures, silicon can fuse to make iron. Thu ...
antarctic and associated exploration book collection
... through the roof of his house), and his measurement procedure (he made fewer than 10 observations over 6 months,). He also chose to measure star right ascension and declination rather than, more conveniently and accurately, differences in angular position of the star relative to another visually clo ...
... through the roof of his house), and his measurement procedure (he made fewer than 10 observations over 6 months,). He also chose to measure star right ascension and declination rather than, more conveniently and accurately, differences in angular position of the star relative to another visually clo ...
Krupp (1999) broadly defines the interdisciplinary field
... observation; sky lore and celestial myth; symbolic representation of celestial objects, concepts, and events; astronomical orientation of tombs, temples, shrines, and urban centers;” and other, similar trappings of culture. While some of these aspects might better be classified as “ethnoastronomy,” ...
... observation; sky lore and celestial myth; symbolic representation of celestial objects, concepts, and events; astronomical orientation of tombs, temples, shrines, and urban centers;” and other, similar trappings of culture. While some of these aspects might better be classified as “ethnoastronomy,” ...
Methods for the detection of exoplanets
... and evolution of life. • Giordano Bruno: “There are countless suns and earths all rotating around their suns in exactly the same way as the seven planets of our system..” (1584) • First confirmed planet – 51 Pegasi on October 1995 by Mayor and Queloz (1995) ...
... and evolution of life. • Giordano Bruno: “There are countless suns and earths all rotating around their suns in exactly the same way as the seven planets of our system..” (1584) • First confirmed planet – 51 Pegasi on October 1995 by Mayor and Queloz (1995) ...
NAM_f2
... Based on the success of box fitting methods for searching for planetary transit signals we decided to try such a method in our search. In order to test the effectiveness of such period searching algorithms for this project we initially used synthetic data consisting of white Gaussian noise with a tr ...
... Based on the success of box fitting methods for searching for planetary transit signals we decided to try such a method in our search. In order to test the effectiveness of such period searching algorithms for this project we initially used synthetic data consisting of white Gaussian noise with a tr ...
Is there life in space? Activity 2: Moving Stars and Their Planets
... of stars. Using models, they will experiment with different types of planets, different sizes of planets, and different planetary orbits and learn how to interpret shifting wavelengths of light coming from stars. Please note: there are short videos about how to use the models on several pages. You s ...
... of stars. Using models, they will experiment with different types of planets, different sizes of planets, and different planetary orbits and learn how to interpret shifting wavelengths of light coming from stars. Please note: there are short videos about how to use the models on several pages. You s ...
Visual Double Star Measurements with Equatorial - Alt
... binary stars and optical doubles. A binary star consists of two stars revolving around a common center of mass. Over time, the orbital motion of each star can create an elliptical change in the observed separation and position angle if the pair proves to be binary in nature. Conversely, if the two s ...
... binary stars and optical doubles. A binary star consists of two stars revolving around a common center of mass. Over time, the orbital motion of each star can create an elliptical change in the observed separation and position angle if the pair proves to be binary in nature. Conversely, if the two s ...
Stellarium Night Sky Search Key Commands Constellations buttons
... Canes Venatici and hit the space bar to center. Slowly zoom in until you see a galaxy in the field of view. Click on the spiral galaxy, hit space bar and zoom in a bit more. i. What is the name of this galaxy? Give its common name, its Messier number and its NGC number. ...
... Canes Venatici and hit the space bar to center. Slowly zoom in until you see a galaxy in the field of view. Click on the spiral galaxy, hit space bar and zoom in a bit more. i. What is the name of this galaxy? Give its common name, its Messier number and its NGC number. ...
K-3 Planetarium Lesson: Our Skies
... We often don’t see other stars or planets in the summertime because the sun brightens our sky. The stars are still there, we just can’t see them. Talk about today’s view of the sky. Change to a dark sky. If it is already dark because it is winter, change to the current view. If it is light out becau ...
... We often don’t see other stars or planets in the summertime because the sun brightens our sky. The stars are still there, we just can’t see them. Talk about today’s view of the sky. Change to a dark sky. If it is already dark because it is winter, change to the current view. If it is light out becau ...
Gravity Defied From Potato Asteroids to Magnetised Neutron Stars
... gravitation is held off by the pressure of the heated gas. Gravity should take over once this fuel is exhausted unless some other agency saves the star from such a fate. Low mass stars find peace as ‘white dwarfs’ when the electrons settle into a Fermi degenerate phase where the pressure of degenerat ...
... gravitation is held off by the pressure of the heated gas. Gravity should take over once this fuel is exhausted unless some other agency saves the star from such a fate. Low mass stars find peace as ‘white dwarfs’ when the electrons settle into a Fermi degenerate phase where the pressure of degenerat ...
S T A R S
... Alpha Centauri is the closest binary to our sun and Proxima Centauri orbits this binary. Omega Centauri (NGC 5139) is globular cluster. The two pointers Apha & Beta Centauri point to Crux. (NGC is the abbreviation for New General Catalogue which is a listing of star clusters, nebulae and galaxies.) ...
... Alpha Centauri is the closest binary to our sun and Proxima Centauri orbits this binary. Omega Centauri (NGC 5139) is globular cluster. The two pointers Apha & Beta Centauri point to Crux. (NGC is the abbreviation for New General Catalogue which is a listing of star clusters, nebulae and galaxies.) ...
Word doc - UC-HiPACC - University of California, Santa Cruz
... Today, the highest-mass stars top out at about 100 solar masses (Eta Carinae, one of the most massive stars in our Milky Way galaxy, is about 90). But recent cosmological simulations suggest the possibility that in the early universe truly gargantuan stars could exist. So Chen began exploring this w ...
... Today, the highest-mass stars top out at about 100 solar masses (Eta Carinae, one of the most massive stars in our Milky Way galaxy, is about 90). But recent cosmological simulations suggest the possibility that in the early universe truly gargantuan stars could exist. So Chen began exploring this w ...
Mon Mar 6, 2017 LEO`S RETURN March, they say, comes in like a
... in the southern sky. It hovers there near the horizon, and at first you might think it was an airplane's landing light. If you've been watching too much TV, you might even think it was a UFO. This particular UFO is easy to identify - It's the star Canopus, second brightest star of the night sky. Can ...
... in the southern sky. It hovers there near the horizon, and at first you might think it was an airplane's landing light. If you've been watching too much TV, you might even think it was a UFO. This particular UFO is easy to identify - It's the star Canopus, second brightest star of the night sky. Can ...
Hot-plate model of stars March 14 − Observed properties of stars
... Spectral class is a proxy for temperature OBAFGKM. O is hottest ...
... Spectral class is a proxy for temperature OBAFGKM. O is hottest ...
PHY111 Stellar Evolution
... most massive stars explode as red supergiants, but some (e.g. SN 1987A) explode as blue supergiants ...
... most massive stars explode as red supergiants, but some (e.g. SN 1987A) explode as blue supergiants ...
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.