ASTRONOMY 301 EXAMPLES OF TEST
... furniture at room temperature. Which of these statements would be wrong? (A) If you dove into a swimming pool full of water and opened your eyes under water, you would see the Sun as a brilliant light above the water. (B) The inside of a refrigerator would look black, but people would glow. (C) A ro ...
... furniture at room temperature. Which of these statements would be wrong? (A) If you dove into a swimming pool full of water and opened your eyes under water, you would see the Sun as a brilliant light above the water. (B) The inside of a refrigerator would look black, but people would glow. (C) A ro ...
Time From the Perspective of a Particle Physicist
... Radius • Find that some are related Large Mass Large Brightness • Determine model of stellar formation and life cycle ...
... Radius • Find that some are related Large Mass Large Brightness • Determine model of stellar formation and life cycle ...
Main Types of Galaxies
... of stars, planetary systems, gas clouds, and star clusters. Nebulas are giant clouds of gas and dust where Nebula are found stars may be in spiral galaxies but not elliptical forming. galaxies. ...
... of stars, planetary systems, gas clouds, and star clusters. Nebulas are giant clouds of gas and dust where Nebula are found stars may be in spiral galaxies but not elliptical forming. galaxies. ...
Project 2. CCD Photometry
... In 120 B.C. Hipparcus classified the naked‐eye stars according to their brightness into six categories or magnitudes. The brightest stars were assigned to category one (first magnitude) and the faintest stars to category six (sixth magnitude), which is the limit of human visual perception (wi ...
... In 120 B.C. Hipparcus classified the naked‐eye stars according to their brightness into six categories or magnitudes. The brightest stars were assigned to category one (first magnitude) and the faintest stars to category six (sixth magnitude), which is the limit of human visual perception (wi ...
Galaxies Powerpoint
... of stars, planetary systems, gas clouds, and star clusters. Nebulas are giant clouds of gas and dust where Nebula are found stars may be in spiral galaxies but not elliptical forming. galaxies. ...
... of stars, planetary systems, gas clouds, and star clusters. Nebulas are giant clouds of gas and dust where Nebula are found stars may be in spiral galaxies but not elliptical forming. galaxies. ...
Name: Astronomy Lab: The Hertzsprung-Russell (H
... Sometimes the student of astronomy starts to become overwhelmed trying to understand the many measurements and observations astronomers make. Data concerning distance, brightness, color, spectral class, mass, temperature, motion, etc. all seem to be gathered in an attempt to impress the student with ...
... Sometimes the student of astronomy starts to become overwhelmed trying to understand the many measurements and observations astronomers make. Data concerning distance, brightness, color, spectral class, mass, temperature, motion, etc. all seem to be gathered in an attempt to impress the student with ...
Main Sequence Lifetime
... • Core becomes extremely dense until it becomes electron degenerate (around 1000 kg per cubic ...
... • Core becomes extremely dense until it becomes electron degenerate (around 1000 kg per cubic ...
AST4930 Star and Planet Formation
... the actual fraction of stars in multiple systems, its variation with stellar mass (e.g., massive stars more likely to be in multiple systems than low-mass stars), and the companion mass distribution. “stellar IMF” – corrected for multiplicity “system IMF” – uncorrected ...
... the actual fraction of stars in multiple systems, its variation with stellar mass (e.g., massive stars more likely to be in multiple systems than low-mass stars), and the companion mass distribution. “stellar IMF” – corrected for multiplicity “system IMF” – uncorrected ...
Deducing Temperatures and Luminosities of Stars
... – L measures star’s “intrinsic” brightness, rather than “apparent” brightness seen from Earth ...
... – L measures star’s “intrinsic” brightness, rather than “apparent” brightness seen from Earth ...
Starbirth and Interstellar Matter
... B. Stars that look redder than their spectral type. C. Bluish nebulas around hot stars. D. Hot hydrogen clouds glowing bright red. 2. Neutral hydrogen (HI) gas can be detected in interstellar space by its: A. emission lines at millimeter wavelengths. B. absorption lines at optical wavelengths. C. 21 ...
... B. Stars that look redder than their spectral type. C. Bluish nebulas around hot stars. D. Hot hydrogen clouds glowing bright red. 2. Neutral hydrogen (HI) gas can be detected in interstellar space by its: A. emission lines at millimeter wavelengths. B. absorption lines at optical wavelengths. C. 21 ...
Distant Stars - How far away is it
... the stable anchor points by which other stars are classified. [Additional info: The star is actually a triple star system. The primary star (Rigel A) is a blue-white supergiant around 117,000 times as luminous as our sun. Rigel B is itself a binary system.] ...
... the stable anchor points by which other stars are classified. [Additional info: The star is actually a triple star system. The primary star (Rigel A) is a blue-white supergiant around 117,000 times as luminous as our sun. Rigel B is itself a binary system.] ...
astronomy webquest…… explore the universe
... Stars and planets are made from gases in a __________________. The Milky Way Galaxy is approximately _______________ light years across. How much longer will our Sun last? _________________________ Lifetimes of stars range from ___________ to ____________ years. Our star orbits the centre of our gal ...
... Stars and planets are made from gases in a __________________. The Milky Way Galaxy is approximately _______________ light years across. How much longer will our Sun last? _________________________ Lifetimes of stars range from ___________ to ____________ years. Our star orbits the centre of our gal ...
April 2006 Newsletter PDF - Cowichan Valley Starfinders Society
... explosions which blow huge bubbles of gas above the disk like smoke rising from chimneys. Shock Wave in Stephan's Quintet Galaxy Sun, 05 Mar 2006 - This photograph, taken by the Spitzer space telescope and a ground-based telescope in Spain, shows the Stephan's Quintet galaxy cluster, with one of the ...
... explosions which blow huge bubbles of gas above the disk like smoke rising from chimneys. Shock Wave in Stephan's Quintet Galaxy Sun, 05 Mar 2006 - This photograph, taken by the Spitzer space telescope and a ground-based telescope in Spain, shows the Stephan's Quintet galaxy cluster, with one of the ...
Lecture 8a Star Formation 10/15/2014
... • 100-1000 stars in region of about 50 LY with few LY separating stars • Have significant amount of heavy elements like Carbon and Oxygen Understood as group of recently formed stars PHYS 162 Lecture 8a ...
... • 100-1000 stars in region of about 50 LY with few LY separating stars • Have significant amount of heavy elements like Carbon and Oxygen Understood as group of recently formed stars PHYS 162 Lecture 8a ...
Dorn_projectF08 - Bowling Green State University
... about 250 stars. The brightest and youngest of these formed about two million years ago, early in astronomical time. Also known as M 45, named after the daughters of E Atlas and Pleione. With a clear sky W about 7 stars are visible with the naked eye, covering 1°of sky, and are 415 Ly. away. The bri ...
... about 250 stars. The brightest and youngest of these formed about two million years ago, early in astronomical time. Also known as M 45, named after the daughters of E Atlas and Pleione. With a clear sky W about 7 stars are visible with the naked eye, covering 1°of sky, and are 415 Ly. away. The bri ...
Summary Of the Structure of the Milky Way
... RR Lyrae variables are periodic variable stars, commonly found in globular clusters, and often used as standard candles to measure galactic distances. • This type of variable is named after the prototype, the variable star RR Lyrae in the constellation Lyra. • RR Lyraes are pulsating horizontal bra ...
... RR Lyrae variables are periodic variable stars, commonly found in globular clusters, and often used as standard candles to measure galactic distances. • This type of variable is named after the prototype, the variable star RR Lyrae in the constellation Lyra. • RR Lyraes are pulsating horizontal bra ...
May 2015 - Hermanus Astronomy
... However, when it is a thin crescent, during the few days after or before a New Moon, a faint illumination of the dark part of the Moon can be seen soon after sunset. This is caused by light from the setting Sun being reflected from the Earth. The winter months, when the Sun is setting early and towa ...
... However, when it is a thin crescent, during the few days after or before a New Moon, a faint illumination of the dark part of the Moon can be seen soon after sunset. This is caused by light from the setting Sun being reflected from the Earth. The winter months, when the Sun is setting early and towa ...
fred`s 2017 astronomy challenge
... How to find: Never finding itself very high in the sky, and only properly visible at sunrise or sunset, Mercury is the closest planet to our Sun. However, don’t be fooled that ...
... How to find: Never finding itself very high in the sky, and only properly visible at sunrise or sunset, Mercury is the closest planet to our Sun. However, don’t be fooled that ...
PDF of story and photos
... region, called the Orion Nebula, is the closest stellar nursery to Earth. What’s in a name? It is called “Orion” for its location and “Nebula” because it is a cloud of gas and dust. The nebula resides along a spiral arm of the Milky Way, in the middle of the sword region of the Continued, next page ...
... region, called the Orion Nebula, is the closest stellar nursery to Earth. What’s in a name? It is called “Orion” for its location and “Nebula” because it is a cloud of gas and dust. The nebula resides along a spiral arm of the Milky Way, in the middle of the sword region of the Continued, next page ...
ASTR 1101-001 Spring 2008 - Louisiana State University
... – In red-giant phase, core helium fusion converts helium into carbon & oxygen; hydrogen fusion continues in a surrounding shell – After core no longer contains helium, star may enter “asymptotic giant branch (AGB)” phase; helium continues to burn in a shell that surrounds an inert C & O core – As AG ...
... – In red-giant phase, core helium fusion converts helium into carbon & oxygen; hydrogen fusion continues in a surrounding shell – After core no longer contains helium, star may enter “asymptotic giant branch (AGB)” phase; helium continues to burn in a shell that surrounds an inert C & O core – As AG ...
magnitude handout
... How do we use this table? The magnitude difference between two stars along with Table 2 gives us the brightness ratio, how many times brighter the star is. We can also work the other way. Thus if star A is 40 times brighter than star B, the table tells us that A is 4 magnitudes brighter. It is prett ...
... How do we use this table? The magnitude difference between two stars along with Table 2 gives us the brightness ratio, how many times brighter the star is. We can also work the other way. Thus if star A is 40 times brighter than star B, the table tells us that A is 4 magnitudes brighter. It is prett ...
Slide 1
... Crab pulsar is slowing down at a rate that is consistent with an age of about 1000 years (plus light travel time), which is when the supernova was observed. The sharpness of the pulses indicates that they come from a region roughly 100 km across, since otherwise the finite travel time for light to m ...
... Crab pulsar is slowing down at a rate that is consistent with an age of about 1000 years (plus light travel time), which is when the supernova was observed. The sharpness of the pulses indicates that they come from a region roughly 100 km across, since otherwise the finite travel time for light to m ...
Scientists discover surprising importance of `I Love Q` for
... star when squished. The larger the number, the more deformed the star is. The third quantity, "Q," refers to the changing shape of a star. ...
... star when squished. The larger the number, the more deformed the star is. The third quantity, "Q," refers to the changing shape of a star. ...
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.