Stars, Galaxies & Universe
... kilometers or miles? A. Light years are a measure of time. B. Miles and kilometers are too small of a unit. C. Miles and kilometers are too large of a unit. D. I don’t have a clue . . . ...
... kilometers or miles? A. Light years are a measure of time. B. Miles and kilometers are too small of a unit. C. Miles and kilometers are too large of a unit. D. I don’t have a clue . . . ...
Photometry
... main sequence on your paper graph. Keep the y axes precisely parallel and over top one another. Seek a best fit for the central portion of the combined patterns. (The cool red stars in the lower right of your paper graph are quite scattered and may not fit very well.) Each star of the main sequence ...
... main sequence on your paper graph. Keep the y axes precisely parallel and over top one another. Seek a best fit for the central portion of the combined patterns. (The cool red stars in the lower right of your paper graph are quite scattered and may not fit very well.) Each star of the main sequence ...
Chapter 29: Stars - Mr. Pelton Science
... SELLAR POSITIONS AND DISTANCES • Astronomers use two units to measure long distances. • The light-year (ly): the distance light travels in one year (9.461x1012 km) • A parsec (pc) = 3.26 ly ...
... SELLAR POSITIONS AND DISTANCES • Astronomers use two units to measure long distances. • The light-year (ly): the distance light travels in one year (9.461x1012 km) • A parsec (pc) = 3.26 ly ...
star
... • The core eventually becomes a white dwarf, a hot, dense, slowly cooling sphere of carbon. • This is what is expected to happen to the Sun. ...
... • The core eventually becomes a white dwarf, a hot, dense, slowly cooling sphere of carbon. • This is what is expected to happen to the Sun. ...
The Milky Way – A Classic Galaxy
... • Pick off the Luminosity from the Cepheid P-L Relation • Calculate how far away the star must be to have that luminosity look like the apparent brightness we see here from Earth ...
... • Pick off the Luminosity from the Cepheid P-L Relation • Calculate how far away the star must be to have that luminosity look like the apparent brightness we see here from Earth ...
STUDY GUIDE Multiple Choice Identify the choice that best
... The sun remains stable over time because a. its supply of hydrogen is inexhaustible. b. the product of fusion, helium, is a stable element. c. the inward pull of gravity and outward push of thermal pressure are balanced. d. nuclear fusion is a stabilizing process. ...
... The sun remains stable over time because a. its supply of hydrogen is inexhaustible. b. the product of fusion, helium, is a stable element. c. the inward pull of gravity and outward push of thermal pressure are balanced. d. nuclear fusion is a stabilizing process. ...
The Night Sky This Month - Usk Astronomical Society
... Some say that the constellation of the Bull was depicted in caves by humans tens of thousands of years ago to the extent that even the Pleiades were shown. What is certain is that Taurus the Bull, with the Scorpion and the Lion, was portrayed over 6000 years ago in the Euphrates Valley, in ancient M ...
... Some say that the constellation of the Bull was depicted in caves by humans tens of thousands of years ago to the extent that even the Pleiades were shown. What is certain is that Taurus the Bull, with the Scorpion and the Lion, was portrayed over 6000 years ago in the Euphrates Valley, in ancient M ...
Questions - HCC Learning Web
... Two ocean liners, each with a mass of 40 000 metric tons, are moving on parallel courses 100 m apart. What is the magnitude of the acceleration of one of the liners toward the other due to their mutual gravitational attraction? Model the ships as particles. ...
... Two ocean liners, each with a mass of 40 000 metric tons, are moving on parallel courses 100 m apart. What is the magnitude of the acceleration of one of the liners toward the other due to their mutual gravitational attraction? Model the ships as particles. ...
Review: How does a star`s mass determine its life story?
... Iron core of massive star reaches white dwarf limit and collapses into a neutron star, causing explosion White dwarf supernova: Carbon fusion suddenly begins as white dwarf in close binary system reaches white dwarf limit, causing total explosion ...
... Iron core of massive star reaches white dwarf limit and collapses into a neutron star, causing explosion White dwarf supernova: Carbon fusion suddenly begins as white dwarf in close binary system reaches white dwarf limit, causing total explosion ...
Gravity - Pulling it all Together
... bench 50 cm apart. Calculate the magnitude of the gravitational force each exerts on the other. (1.0x10-6 N) ...
... bench 50 cm apart. Calculate the magnitude of the gravitational force each exerts on the other. (1.0x10-6 N) ...
Astronomy work sheet
... What is peculiar about the apparent motion of the planets? What is the actual shape of a planets orbit around the Sun? Find out the distances of the planets of the Solar System from the Sun. How can you tell from the night sky which planets are closer to the Sun than the Earth? 11. ASTRONOMICAL TERM ...
... What is peculiar about the apparent motion of the planets? What is the actual shape of a planets orbit around the Sun? Find out the distances of the planets of the Solar System from the Sun. How can you tell from the night sky which planets are closer to the Sun than the Earth? 11. ASTRONOMICAL TERM ...
14.5 Yellow Giants and Pulsating Stars Variable Stars Not all stars
... A similar process occurs in pulsating stars, with the role of steam played by the star's radiation and the role of the lid played by the star's atmosphere. For a star to trap radiation this way, its atmosphere must have special absorbing properties—technically called “opacity”—that occur only if its ...
... A similar process occurs in pulsating stars, with the role of steam played by the star's radiation and the role of the lid played by the star's atmosphere. For a star to trap radiation this way, its atmosphere must have special absorbing properties—technically called “opacity”—that occur only if its ...
Tutorial - TIL BIRNSTIEL
... where S is the solar flux (1360 W m−2 at the Earth’s distance), A is the albedo of the planet, σ is the Stefan-Boltzmann constant (5.67 × 10−8 W m−2 K−4 , in SI units) and f is a constant of order unity (assume f = 4 for the rest of the exercise, why?). • For an Earth albedo of 0.29, derive the habi ...
... where S is the solar flux (1360 W m−2 at the Earth’s distance), A is the albedo of the planet, σ is the Stefan-Boltzmann constant (5.67 × 10−8 W m−2 K−4 , in SI units) and f is a constant of order unity (assume f = 4 for the rest of the exercise, why?). • For an Earth albedo of 0.29, derive the habi ...
Level 4 Constellations North Star, South Star
... (Polaris) close to the Celestial North Pole. The Southern Hemisphere isn't so lucky. The only star that comes close is Sigma Octans, which is 1 degree away from the South Celestial Pole. But it's too dim to see at all except under optimal conditions. ...
... (Polaris) close to the Celestial North Pole. The Southern Hemisphere isn't so lucky. The only star that comes close is Sigma Octans, which is 1 degree away from the South Celestial Pole. But it's too dim to see at all except under optimal conditions. ...
Ecliptic 1 2 3 Three tell tale visual characteristics a planet:
... When Mercury or Venus move between the Earth and the sun or when they orbit on the sun’s far side, they appear near it in our day sky and can’t be seen. ...
... When Mercury or Venus move between the Earth and the sun or when they orbit on the sun’s far side, they appear near it in our day sky and can’t be seen. ...
Pistol Star - University of Dayton
... •Called the solar atmosphere because its cool and diffuse compared to the core, even though the sun is actually gaseous. •The temperature is 5,700 K and fusion doesn’t occur at this temperature, therefore the core heats the photosphere and the light we see comes from the atmosphere of hydrogen and ...
... •Called the solar atmosphere because its cool and diffuse compared to the core, even though the sun is actually gaseous. •The temperature is 5,700 K and fusion doesn’t occur at this temperature, therefore the core heats the photosphere and the light we see comes from the atmosphere of hydrogen and ...
Document
... spiral galaxy – 1000,000 light years wide – 10,000 light years thick at the centre – has three distinct spiral arms - Sun is positioned in one of these arms about two-thirds of the way from the galactic center, at a distance of about 30,000 lightyears The Andromeda Galaxy, M31, is the nearest majo ...
... spiral galaxy – 1000,000 light years wide – 10,000 light years thick at the centre – has three distinct spiral arms - Sun is positioned in one of these arms about two-thirds of the way from the galactic center, at a distance of about 30,000 lightyears The Andromeda Galaxy, M31, is the nearest majo ...
Main Sequence Stars
... is that there is only one way to make a star with a given mass and chemical composition – if we start with a just formed protostar of a given mass and chemical composition, we can calculate how that star will evolve over its entire life. • This is extremely useful because it greatly simplifies the s ...
... is that there is only one way to make a star with a given mass and chemical composition – if we start with a just formed protostar of a given mass and chemical composition, we can calculate how that star will evolve over its entire life. • This is extremely useful because it greatly simplifies the s ...
qwk9
... A. The Michelson-Morley experiment established that light is bent in a strong gravitational field B. Einstein received the Nobel Prize in Physics for explaining the photo-electric effect and the “particle” (photon) nature of light given by the law: E = hν C. Kepler’s laws can be used to describe the ...
... A. The Michelson-Morley experiment established that light is bent in a strong gravitational field B. Einstein received the Nobel Prize in Physics for explaining the photo-electric effect and the “particle” (photon) nature of light given by the law: E = hν C. Kepler’s laws can be used to describe the ...
NASC 1100 Lecture 1
... since 1995 The Extrasolar Planet Encyclopedia Stars are too far away from the Sun, and direct imaging cannot detect planets near them Current strategy involves watching for the small gravitational tag the planet exerts on its star The tag can be detected using the Doppler effect ...
... since 1995 The Extrasolar Planet Encyclopedia Stars are too far away from the Sun, and direct imaging cannot detect planets near them Current strategy involves watching for the small gravitational tag the planet exerts on its star The tag can be detected using the Doppler effect ...
Slide 1
... Besides the usual stars, clusters of stars, galaxies, and clusters and super- clusters of galaxies, the universe contains a number of other interesting objects. Among these are stars known as red giants, white dwarfs, neutron stars, black holes and exploding stars called novae and supernovae. In ad ...
... Besides the usual stars, clusters of stars, galaxies, and clusters and super- clusters of galaxies, the universe contains a number of other interesting objects. Among these are stars known as red giants, white dwarfs, neutron stars, black holes and exploding stars called novae and supernovae. In ad ...
SSG Coordinators will be at the Cronan Ranch observing site at 5
... scopes in the 4” range under medium to high magnification may glimpse a faint dust lane and some surface mottling. Cassiopeia (S&T Pocket Sky Atlas – pg 1 – 3) This constellation is one of the most recognized in the sky due to its prominent M (or W) asterism. Cassiopeia is also a circumpolar constel ...
... scopes in the 4” range under medium to high magnification may glimpse a faint dust lane and some surface mottling. Cassiopeia (S&T Pocket Sky Atlas – pg 1 – 3) This constellation is one of the most recognized in the sky due to its prominent M (or W) asterism. Cassiopeia is also a circumpolar constel ...
1” “Sky-Notes” of the Open University Astronomy Club. April 2005
... NGC2903 (8.9) sg. A spiral galaxy inclined to our line of sight. One of the brightest galaxies in Leo it is surprisingly not a Messier object. NGC3190 (11.0) sg and NGC3193 (10.9) eg. Pair of galaxies located mid-way between and . NGC3226 (11.4) and NGC3227 (10.8) about 1o east of form a close ...
... NGC2903 (8.9) sg. A spiral galaxy inclined to our line of sight. One of the brightest galaxies in Leo it is surprisingly not a Messier object. NGC3190 (11.0) sg and NGC3193 (10.9) eg. Pair of galaxies located mid-way between and . NGC3226 (11.4) and NGC3227 (10.8) about 1o east of form a close ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.