The Hertzsprung-Russell Diagram
... 9. Label the following steps on your H-R diagram to show the series of changes that our sun has undergone since its formation 4.6 billion years ago. a. Originally, a big cloud of gas and dust called a nebula condensed to form a young, cool star called a red dwarf. In this first stage of life, our s ...
... 9. Label the following steps on your H-R diagram to show the series of changes that our sun has undergone since its formation 4.6 billion years ago. a. Originally, a big cloud of gas and dust called a nebula condensed to form a young, cool star called a red dwarf. In this first stage of life, our s ...
Document
... shape of a volcano. Now you can see the stars that form a volcano best in late summer and early, early fall. Hades and Hephaestus were proud of their ambitious project. They did not only create the first volcano, but now it would go off every year and the gods of Olympus would know to discourage and ...
... shape of a volcano. Now you can see the stars that form a volcano best in late summer and early, early fall. Hades and Hephaestus were proud of their ambitious project. They did not only create the first volcano, but now it would go off every year and the gods of Olympus would know to discourage and ...
P10263v1.2 Lab 6 Text
... absolute luminosity. Combined with the measured apparent luminosity and an estimate of “X”, we were able to find the distance to that cluster. Finding the distance to other galaxies, however, can be a bit more difficult. Whereas the Pleiades cluster is about 120 parsecs away, the Small Magellanic Cl ...
... absolute luminosity. Combined with the measured apparent luminosity and an estimate of “X”, we were able to find the distance to that cluster. Finding the distance to other galaxies, however, can be a bit more difficult. Whereas the Pleiades cluster is about 120 parsecs away, the Small Magellanic Cl ...
Stars & Constellations
... the North Star (which always points North). Once navigators had found North, they could observe its height in the sky and hence work out their latitude (how far North / South they are). Now they know how far North they are + the direction they’re traveling ...
... the North Star (which always points North). Once navigators had found North, they could observe its height in the sky and hence work out their latitude (how far North / South they are). Now they know how far North they are + the direction they’re traveling ...
Introduction to the sky
... If we draw a line from the zenith through a celestial object and extend that line to the horizon, we obtain the azimuth angle of the object. By convention, the north point on the horizon has azimuth 0 degrees, the east point has azimuth 90 degrees, the south point has azimuth 180 degrees, and the w ...
... If we draw a line from the zenith through a celestial object and extend that line to the horizon, we obtain the azimuth angle of the object. By convention, the north point on the horizon has azimuth 0 degrees, the east point has azimuth 90 degrees, the south point has azimuth 180 degrees, and the w ...
Introduction to the sky
... If we draw a line from the zenith through a celestial object and extend that line to the horizon, we obtain the azimuth angle of the object. By convention, the north point on the horizon has azimuth 0 degrees, the east point has azimuth 90 degrees, the south point has azimuth 180 degrees, and the w ...
... If we draw a line from the zenith through a celestial object and extend that line to the horizon, we obtain the azimuth angle of the object. By convention, the north point on the horizon has azimuth 0 degrees, the east point has azimuth 90 degrees, the south point has azimuth 180 degrees, and the w ...
Star Types - University of Massachusetts Amherst
... P (in arcseconds) P, the parallax angle, is measured in arcseconds 60 arcseconds = 1 arcminute 60 arcminutes = 1 degree There are 3600 arcseconds in a degree The larger P, the smaller D The smaller P, the larger D ...
... P (in arcseconds) P, the parallax angle, is measured in arcseconds 60 arcseconds = 1 arcminute 60 arcminutes = 1 degree There are 3600 arcseconds in a degree The larger P, the smaller D The smaller P, the larger D ...
answers
... B) double C) quadruple D) _________ D) If Star A appeared the same, then at twice the distance it would have to be four times brighter. However, it appears even brighter so its luminosity must be even more. 5) The image above right shows a tiny section of the Andromeda galaxy. Star D is ______ than ...
... B) double C) quadruple D) _________ D) If Star A appeared the same, then at twice the distance it would have to be four times brighter. However, it appears even brighter so its luminosity must be even more. 5) The image above right shows a tiny section of the Andromeda galaxy. Star D is ______ than ...
Circumpolar constellations
... Is there a direction you could look any clear night, no matter what time of year, and always see the same stars? Yes! Circumpolar constellations do not rise or set, but appear to move in a series of circles around Polaris, the pole star. In the northern hemisphere, between 30 and 40 degrees North la ...
... Is there a direction you could look any clear night, no matter what time of year, and always see the same stars? Yes! Circumpolar constellations do not rise or set, but appear to move in a series of circles around Polaris, the pole star. In the northern hemisphere, between 30 and 40 degrees North la ...
Lab 5 Takehome
... twice as big in radius has four times higher luminosity (because the surface area of a sphere is 4πr2 ...
... twice as big in radius has four times higher luminosity (because the surface area of a sphere is 4πr2 ...
RR animation
... • Stars that exhibit pulsation periods on the order of a few days to months, are 4–20 times more massive than the Sun, and up to 100,000 times more luminous. • Cepheids are supergiants of spectral class F6 – K2 and their radii change by several million km (30%) in the process. • There exists a well- ...
... • Stars that exhibit pulsation periods on the order of a few days to months, are 4–20 times more massive than the Sun, and up to 100,000 times more luminous. • Cepheids are supergiants of spectral class F6 – K2 and their radii change by several million km (30%) in the process. • There exists a well- ...
Phobos
... The Hubble space telescope has for the first time identified the parent star of a distant planet discovered through gravitational microlensing. Microlensing occurs when the gravitational field of a foreground star amplifies the light of a background star that momentarily aligns with it. The particul ...
... The Hubble space telescope has for the first time identified the parent star of a distant planet discovered through gravitational microlensing. Microlensing occurs when the gravitational field of a foreground star amplifies the light of a background star that momentarily aligns with it. The particul ...
The Southern Winter PDF
... The dusty region between Ophiuchus and Scorpius contains some of the most colorful and spectacular nebulae ever photographed. The upper part of the picture is filled with the bluish glow of light from hot stars reflected by a huge, cool cloud of dust and gas where such stars are born. This dust is a ...
... The dusty region between Ophiuchus and Scorpius contains some of the most colorful and spectacular nebulae ever photographed. The upper part of the picture is filled with the bluish glow of light from hot stars reflected by a huge, cool cloud of dust and gas where such stars are born. This dust is a ...
c - Fsusd
... 25) According to Hubble’s law, the farther away a galaxy is, ______. a) the slower it is moving away from Earth b) the sooner it will stop moving c) the faster it is moving away from Earth ...
... 25) According to Hubble’s law, the farther away a galaxy is, ______. a) the slower it is moving away from Earth b) the sooner it will stop moving c) the faster it is moving away from Earth ...
Universe 19
... into the negative numbers for really bright objects and into the 20s and 30s for really dim objects. • Absolute magnitude, on the other hand is how bright a star would look if it were 10 pc away. ...
... into the negative numbers for really bright objects and into the 20s and 30s for really dim objects. • Absolute magnitude, on the other hand is how bright a star would look if it were 10 pc away. ...
Page 25 - Types of Galaxies
... • These galaxies are neither spiral nor elliptical. • They tend to be smaller objects that are without definite shape and tend to have very hot newer stars mixed in with lots of gas and dust. • These galaxies often have active regions of star formation. Sometimes the irregular shape of these galaxie ...
... • These galaxies are neither spiral nor elliptical. • They tend to be smaller objects that are without definite shape and tend to have very hot newer stars mixed in with lots of gas and dust. • These galaxies often have active regions of star formation. Sometimes the irregular shape of these galaxie ...
AST121 Introduction to Astronomy
... • Both stars orbit about the center of mass of the system. • We must consider how we are viewing the binary stars (top view, side view, at an angle?) • How can we analyze the orbit? ...
... • Both stars orbit about the center of mass of the system. • We must consider how we are viewing the binary stars (top view, side view, at an angle?) • How can we analyze the orbit? ...
ASTR 553/554 (1) : Questions
... if the object is 10 pc distant. From these definitions, show that the distance modulus, m - M, is given by: m - M = -5 + 5 log10 dpc b. If IV is the V band surface brightness measured in LV, pc-2 and µV is the corresponding V band surface brightness measured in V mag arcsec-2 (mag/ss), show that µV ...
... if the object is 10 pc distant. From these definitions, show that the distance modulus, m - M, is given by: m - M = -5 + 5 log10 dpc b. If IV is the V band surface brightness measured in LV, pc-2 and µV is the corresponding V band surface brightness measured in V mag arcsec-2 (mag/ss), show that µV ...
Spectral Variations of Several RV Tauri Type Stars Patrick Durant
... already in our database as well as other RV Tauri and SemiRegular variables. Using the results of Nesmith and Cash (adjacent poster, this conference), we will identify the specific future Julian dates corresponding to data gaps in phase space and obtain spectra on those dates. ...
... already in our database as well as other RV Tauri and SemiRegular variables. Using the results of Nesmith and Cash (adjacent poster, this conference), we will identify the specific future Julian dates corresponding to data gaps in phase space and obtain spectra on those dates. ...
The Hubble Redshift Distance Relation
... • The telescope is currently pointed at the Coma Berenices cluster. Use the “N”, “W”, “S”, “E” buttons to move the telescope until the central red box is centered on one of the galaxies (you can change how quickly the telescope moves - or slews - by clicking on the Slew Rate button). Next, click on ...
... • The telescope is currently pointed at the Coma Berenices cluster. Use the “N”, “W”, “S”, “E” buttons to move the telescope until the central red box is centered on one of the galaxies (you can change how quickly the telescope moves - or slews - by clicking on the Slew Rate button). Next, click on ...
The Night Sky
... passage of the comet around the Sun. Records of observation of the Perseid meteor shower go back as far as two thousand years. The trail of dust is so old that it contains larger than average particles, thus this shower is known for having exceptionally bright, colorful meteors leaving long trails a ...
... passage of the comet around the Sun. Records of observation of the Perseid meteor shower go back as far as two thousand years. The trail of dust is so old that it contains larger than average particles, thus this shower is known for having exceptionally bright, colorful meteors leaving long trails a ...
Chapter 21
... within the next 100,000 years. Even at its relatively remote distance, it normally ranks as the tenth brightest star in the sky. ...
... within the next 100,000 years. Even at its relatively remote distance, it normally ranks as the tenth brightest star in the sky. ...
Mapping the Stars
... Why does the Earth appear to move across the sky? It appears to move across the sky due to the Earth’s rotation. Do the stars appear to move at night also? Yes All the stars we see at night appear to rotate around which star? Polaris which is the North Star Where is Polaris located? Directly above t ...
... Why does the Earth appear to move across the sky? It appears to move across the sky due to the Earth’s rotation. Do the stars appear to move at night also? Yes All the stars we see at night appear to rotate around which star? Polaris which is the North Star Where is Polaris located? Directly above t ...
Aries (constellation)
Aries is one of the constellations of the zodiac. It is located in the northern celestial hemisphere between Pisces to the west and Taurus to the east. The name Aries is Latin for ram, and its symbol is 20px (Unicode ♈), representing a ram's horns. It is one of the 48 constellations described by the 2nd century astronomer Ptolemy, and remains one of the 88 modern constellations. It is a mid-sized constellation, ranking 39th overall size, with an area of 441 square degrees (1.1% of the celestial sphere).Although Aries came to represent specifically the ram whose fleece became the Golden Fleece of Ancient Greek mythology, it has represented a ram since late Babylonian times. Before that, the stars of Aries formed a farmhand. Different cultures have incorporated the stars of Aries into different constellations including twin inspectors in China and a porpoise in the Marshall Islands. Aries is a relatively dim constellation, possessing only four bright stars: Hamal (Alpha Arietis, second magnitude), Sheratan (Beta Arietis, third magnitude), Mesarthim (Gamma Arietis, fourth magnitude), and 41 Arietis (also fourth magnitude). The few deep-sky objects within the constellation are quite faint and include several pairs of interacting galaxies. Several meteor showers appear to radiate from Aries, including the Daytime Arietids and the Epsilon Arietids.