1.1 Stars in the Broader Context of Modern Astro
... closest planetary nebula, at a distance of only ∼ 200 pc. The nebula consists of the outer layers of a solar-mass star, expelled towards the end of its life and made to glow by the ultraviolet light emitted by the hot core left behind (visible at the centre of the nebula). The expansion velocity is ...
... closest planetary nebula, at a distance of only ∼ 200 pc. The nebula consists of the outer layers of a solar-mass star, expelled towards the end of its life and made to glow by the ultraviolet light emitted by the hot core left behind (visible at the centre of the nebula). The expansion velocity is ...
Study Guide – Midterm 3
... • “Schwarzschild radius” or “event horizon” = radius around mass concentration within which light can no longer escape to outside. ...
... • “Schwarzschild radius” or “event horizon” = radius around mass concentration within which light can no longer escape to outside. ...
Back to basics: naked-eye astronomical observation
... but once some introduction has been made not only do they become familiar objects, enabling some degree of direction finding, but also the sight of the whole sphere of the Moon at a New Moon (due to Earthshine) can give a sense of scale and even the feeling of gravity holding this large ‘rock’ in or ...
... but once some introduction has been made not only do they become familiar objects, enabling some degree of direction finding, but also the sight of the whole sphere of the Moon at a New Moon (due to Earthshine) can give a sense of scale and even the feeling of gravity holding this large ‘rock’ in or ...
02 - University of New Mexico
... surface, acceleration of gravity is approximately constant, and directed toward the center of Earth ...
... surface, acceleration of gravity is approximately constant, and directed toward the center of Earth ...
Chapter27
... 5. It is much easier to detect Jupiter-like planets than terrestrial planets. 6. The observations were periodic variations in the Doppler shifts of spectral lines of the stars as they orbited their common centers of mass with their planets. 7. They are similar to the solar system in that they contai ...
... 5. It is much easier to detect Jupiter-like planets than terrestrial planets. 6. The observations were periodic variations in the Doppler shifts of spectral lines of the stars as they orbited their common centers of mass with their planets. 7. They are similar to the solar system in that they contai ...
Distances in Space
... Mars is 230 000 000 km, from the sun, or approximately 1.5 a.u. from the Sun. So Mars is 1.5 times as far from the sun as Earth is from the sun. ...
... Mars is 230 000 000 km, from the sun, or approximately 1.5 a.u. from the Sun. So Mars is 1.5 times as far from the sun as Earth is from the sun. ...
Spectral Variations of Several RV Tauri Type Stars Patrick Durant
... Typical periods between successive deep minima are 30 to 150 days. ...
... Typical periods between successive deep minima are 30 to 150 days. ...
Review Unit 1 - Effingham County Schools
... #13 Mercury terrestrial planet, smallest planet, closest to sun # 14 Venus terrestrial planet, closest to earth in size and mass, hottest atmosphere due to greenhouse effect, completely enveloped in clouds that produce sulfuric acid rain #15 Earth terrestrial planet, only breathable atmosphere and w ...
... #13 Mercury terrestrial planet, smallest planet, closest to sun # 14 Venus terrestrial planet, closest to earth in size and mass, hottest atmosphere due to greenhouse effect, completely enveloped in clouds that produce sulfuric acid rain #15 Earth terrestrial planet, only breathable atmosphere and w ...
Lesson 4d Models of the Solar System
... Venus has phases (like the moon) and appears to change size Jupiter has objects orbiting it (moons) There are dark spots on the sun The sun rotates and the spots on the ...
... Venus has phases (like the moon) and appears to change size Jupiter has objects orbiting it (moons) There are dark spots on the sun The sun rotates and the spots on the ...
Dwarf Planets Quiz Answer key
... 4) Place the following dwarf planets in order from furthest from the Sun to nearest: Eris, Pluto, Ceres, Wakewake, Haumea. Eris, Makemake, Haumea, Pluto, Ceres 5) Pluto is… a) icy and rocky. th b) 1/5 the ...
... 4) Place the following dwarf planets in order from furthest from the Sun to nearest: Eris, Pluto, Ceres, Wakewake, Haumea. Eris, Makemake, Haumea, Pluto, Ceres 5) Pluto is… a) icy and rocky. th b) 1/5 the ...
light energy
... • Distances can be deceiving: Bright stars look close, but may be very far away Star Approx. Distance (LY) P. Centari ...
... • Distances can be deceiving: Bright stars look close, but may be very far away Star Approx. Distance (LY) P. Centari ...
PLANETARY ATMOSPHERES HOMEWORK
... The mean distance from the Sun to Mercury, Venus, Earth, Mars and Jupiter are 0.39, 0.72, 1.0, 1.5, and 5.2 AU. Assume that the density, solar wind speed, total magnetic field, and temperature at the base of the corona are 20x104 #/cc, 450 km/sec, 2,5x106 oK, radial (Br) component of magnetic field ...
... The mean distance from the Sun to Mercury, Venus, Earth, Mars and Jupiter are 0.39, 0.72, 1.0, 1.5, and 5.2 AU. Assume that the density, solar wind speed, total magnetic field, and temperature at the base of the corona are 20x104 #/cc, 450 km/sec, 2,5x106 oK, radial (Br) component of magnetic field ...
Twinkle, Twinkle Little Star
... Way Above the World So High… • The Life Span of a star depends on the type of star it is: – Giant blue Stars = 1 to 100 million years – Yellow Star (the Sun) = 10 billion years – Red dwarf Stars = 100 billion – 1 trillion years ...
... Way Above the World So High… • The Life Span of a star depends on the type of star it is: – Giant blue Stars = 1 to 100 million years – Yellow Star (the Sun) = 10 billion years – Red dwarf Stars = 100 billion – 1 trillion years ...
1_Introduction - Department of Astronomy
... Distance from Earth to Sun = 150 billion meters = 1.5 X 1011 meters = 1 astronomical unit (AU) ...
... Distance from Earth to Sun = 150 billion meters = 1.5 X 1011 meters = 1 astronomical unit (AU) ...
If you wish to a copy of this months Night Sky News
... Castor B is now also known to be a spectroscopic binary whose components are even closer, at only 4.5 million km distance and having an orbital period of only three days. A distant 9th mag. companion star was also discovered 150 billion km (1000 AU) distant from the A-B pair. It was also detected as ...
... Castor B is now also known to be a spectroscopic binary whose components are even closer, at only 4.5 million km distance and having an orbital period of only three days. A distant 9th mag. companion star was also discovered 150 billion km (1000 AU) distant from the A-B pair. It was also detected as ...
FINAL EXAM
... 57. What period ended with Dino extinction 58. When did Dinos 1st appear 59. How much can crustal plates move in a year 60. 3 major cloud types 61. Most common form of solid precipitation 62. Warm vs. Cold Front 63. Barometer 64. How is Oxygen added to the atmosphere 65. Greenhouse Effect 66. Conduc ...
... 57. What period ended with Dino extinction 58. When did Dinos 1st appear 59. How much can crustal plates move in a year 60. 3 major cloud types 61. Most common form of solid precipitation 62. Warm vs. Cold Front 63. Barometer 64. How is Oxygen added to the atmosphere 65. Greenhouse Effect 66. Conduc ...
A Star is Born!
... • A study of the exact shape of the ZAMS in an HR diagram indicates that more massive stars have larger radii than less massive stars ...
... • A study of the exact shape of the ZAMS in an HR diagram indicates that more massive stars have larger radii than less massive stars ...
File
... OBJECTIVE: Compare a stars color, temperature, brightness, and size to its spectral class. PURPOSE: Plot stars according to brightness and temperature to create an HR diagram. PROCEDURES: 1. Study the star data table on the back. 2. The sun, used as a standard brightness, is given a value of 1. The ...
... OBJECTIVE: Compare a stars color, temperature, brightness, and size to its spectral class. PURPOSE: Plot stars according to brightness and temperature to create an HR diagram. PROCEDURES: 1. Study the star data table on the back. 2. The sun, used as a standard brightness, is given a value of 1. The ...
cancer, la constelac..
... Gamma () and delta () Cancri are known as Asellus borealis and Asellus australis respectively. Their names mean the Northern Donkey and the Southern Donkey, and they are eating from the large open star cluster called Praesaepe, which means "the Manger." Some stories say they are the donkeys in the ...
... Gamma () and delta () Cancri are known as Asellus borealis and Asellus australis respectively. Their names mean the Northern Donkey and the Southern Donkey, and they are eating from the large open star cluster called Praesaepe, which means "the Manger." Some stories say they are the donkeys in the ...
Practice Problems for Test 2 1. Momentum may be expressed in: A
... A) F1 is much greater than F2 D) F1 is slightly less than F2 B) F1 is slightly greater than F2 E) F1 is much less than F2 C) F1 is equal to F2 16. A planet travels in an elliptical orbit about a star as shown. At what pair of points is the speed of the planet the same? ...
... A) F1 is much greater than F2 D) F1 is slightly less than F2 B) F1 is slightly greater than F2 E) F1 is much less than F2 C) F1 is equal to F2 16. A planet travels in an elliptical orbit about a star as shown. At what pair of points is the speed of the planet the same? ...
The Characteristics of Stars
... of energy produced by a star each second is referred to as its luminosity. The luminosity of a star is measured by comparing it with the luminosity of the Sun, which is assigned a luminosity of 1. Sirius, the brightest star in the night sky, has a luminosity of 22. This means that Sirius gives off 2 ...
... of energy produced by a star each second is referred to as its luminosity. The luminosity of a star is measured by comparing it with the luminosity of the Sun, which is assigned a luminosity of 1. Sirius, the brightest star in the night sky, has a luminosity of 22. This means that Sirius gives off 2 ...
Document
... Even if the multiple images are too close together to be resolved separately, they will still make the background source appear (temporarily) brighter. We call this case gravitational microlensing. We can plot a light curve showing how the brightness of the background source changes with time. If t ...
... Even if the multiple images are too close together to be resolved separately, they will still make the background source appear (temporarily) brighter. We call this case gravitational microlensing. We can plot a light curve showing how the brightness of the background source changes with time. If t ...
Aquarius (constellation)
Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces. Its name is Latin for ""water-carrier"" or ""cup-carrier"", and its symbol is 20px (Unicode ♒), a representation of water.Aquarius is one of the oldest of the recognized constellations along the zodiac (the sun's apparent path). It was one of the 48 constellations listed by the 2nd century AD astronomer Ptolemy, and it remains one of the 88 modern constellations. It is found in a region often called the Sea due to its profusion of constellations with watery associations such as Cetus the whale, Pisces the fish, and Eridanus the river.