Some formulas for astronomy ASTR 122 Fall Quarter 2007 D. E.
... while for photon absorption by an atom after before + hν = Eatom Eatom ...
... while for photon absorption by an atom after before + hν = Eatom Eatom ...
Stars and Their Characteristics
... Constellations • Constellation- groups of stars that appear to form patterns – 88 constellations can be seen from n. and s. hemispheres – So far away that only after thousands of years might the motions be observed – Big Dipper- asterism (small-star grouping) • Part of Ursa Major- Great Bear ...
... Constellations • Constellation- groups of stars that appear to form patterns – 88 constellations can be seen from n. and s. hemispheres – So far away that only after thousands of years might the motions be observed – Big Dipper- asterism (small-star grouping) • Part of Ursa Major- Great Bear ...
Stars and Galaxies
... Universe is expanding Doppler shift—light changes as it moves toward or away from an object Starlight moving toward Earth shifts to blue-violet end of spectrum Starlight moving away from Earth shifts to red end of spectrum All galaxies outside the Local Group indicate a red shift in their spec ...
... Universe is expanding Doppler shift—light changes as it moves toward or away from an object Starlight moving toward Earth shifts to blue-violet end of spectrum Starlight moving away from Earth shifts to red end of spectrum All galaxies outside the Local Group indicate a red shift in their spec ...
Stars Part 2 - westscidept
... Earth is called apparent magnitude. • A dim star might look bright to us on Earth if it is close. At the same time, we may barely be able to see a very bright star if it is too far away. • Betelgeuse which is one of the brightest stars in the sky is 310 light years away. There are thousands of close ...
... Earth is called apparent magnitude. • A dim star might look bright to us on Earth if it is close. At the same time, we may barely be able to see a very bright star if it is too far away. • Betelgeuse which is one of the brightest stars in the sky is 310 light years away. There are thousands of close ...
Review for Astronomy Exam 1
... the Universe is made of Water Heraclitus: the Universe is made of Fire Empedocles: the Universe is made of Water, Air, Fire, Earth Aristotle: the Universe has 8 crystalline spheres (Moon, Mercury, Venus, Sun, Mars, Jupiter, Saturn, Stars) he added a fifth element “quintessence” to his cosmological s ...
... the Universe is made of Water Heraclitus: the Universe is made of Fire Empedocles: the Universe is made of Water, Air, Fire, Earth Aristotle: the Universe has 8 crystalline spheres (Moon, Mercury, Venus, Sun, Mars, Jupiter, Saturn, Stars) he added a fifth element “quintessence” to his cosmological s ...
Astronomy Basics
... massive as Earth. These cores are so massive that they accrete gas, forming gas giant planets. ...
... massive as Earth. These cores are so massive that they accrete gas, forming gas giant planets. ...
White Dwarfs - Astronomy - The University of Texas at Austin
... White Dwarfs (Section 5.1) Essentially every white dwarf formed since beginning of Galaxy is still here 10-100 billion of them (~ 100 billion stars total) Most are dim, undiscovered, see only those nearby, none naked eye Sirius, brightest star in the sky, has a white dwarf companion. Can’t see the ...
... White Dwarfs (Section 5.1) Essentially every white dwarf formed since beginning of Galaxy is still here 10-100 billion of them (~ 100 billion stars total) Most are dim, undiscovered, see only those nearby, none naked eye Sirius, brightest star in the sky, has a white dwarf companion. Can’t see the ...
A Census of the Solar System
... 1. Planets and their satellites all lie in the same plane - the ecliptic – to within a few degrees 2. Sun’s rotational equator aligned with ecliptic 3. Planetary orbits are nearly circular ellipses 4. Planets all revolve in same W -> E direction 5. Sun and planets all rotate on axes in same W –E dir ...
... 1. Planets and their satellites all lie in the same plane - the ecliptic – to within a few degrees 2. Sun’s rotational equator aligned with ecliptic 3. Planetary orbits are nearly circular ellipses 4. Planets all revolve in same W -> E direction 5. Sun and planets all rotate on axes in same W –E dir ...
Light as a Wave (1) Distances to Stars
... intrinsic brightness or luminosity (L) and inversely proportional to the square of the distance (d): ...
... intrinsic brightness or luminosity (L) and inversely proportional to the square of the distance (d): ...
Brightness + Magnitude of Stars
... A. Apparent or Relative Brightness-(cont.) *** As distance to Star Decreases brightness Increases (Inverse Relationship) *** As Luminosity of Star increases brightness Increases (Direct Relationship) B. Apparent Magnitude A number assigned to a celestial object that is a measure of its relative br ...
... A. Apparent or Relative Brightness-(cont.) *** As distance to Star Decreases brightness Increases (Inverse Relationship) *** As Luminosity of Star increases brightness Increases (Direct Relationship) B. Apparent Magnitude A number assigned to a celestial object that is a measure of its relative br ...
Lecture on Planetary Configurations
... In their orbits, where will we never see them? In their orbits, where is the best time to see them? ...
... In their orbits, where will we never see them? In their orbits, where is the best time to see them? ...
Name:
... __________________ are other small rocks that travel through space and may enter Earth’s atmosphere. When they strike the Earth’s surface they are called ________________________. A ________________ is a ball of ice, rock, and gas that has an orbit which brings it really close to the sun on one end, ...
... __________________ are other small rocks that travel through space and may enter Earth’s atmosphere. When they strike the Earth’s surface they are called ________________________. A ________________ is a ball of ice, rock, and gas that has an orbit which brings it really close to the sun on one end, ...
A Brief History of Planetary Science
... If we take a spectrum of a star, what does it look like? ...
... If we take a spectrum of a star, what does it look like? ...
KOI-54 Claude Plymate There is a star system about 45 light years
... Claude Plymate There is a star system about 45 light years away in the constellation Cygnus. The system we know as HD 187091 (also known as KOI-54 for Kepler Object of Interest 54) is an undistinguished 8th magnitude A star or was before the Kepler telescope took a close look. As it turns out, the s ...
... Claude Plymate There is a star system about 45 light years away in the constellation Cygnus. The system we know as HD 187091 (also known as KOI-54 for Kepler Object of Interest 54) is an undistinguished 8th magnitude A star or was before the Kepler telescope took a close look. As it turns out, the s ...
Study Guide - Experience Astronomy
... center, and the sun, moon, planets and stars revolve around the Earth Horizon – from your perspective, the place where the sky meets the land Jupiter -‐ a planet named after king god of the Romans; the most massive, fastest spinning planet in the sol ...
... center, and the sun, moon, planets and stars revolve around the Earth Horizon – from your perspective, the place where the sky meets the land Jupiter -‐ a planet named after king god of the Romans; the most massive, fastest spinning planet in the sol ...
Measuring the Stars pages 813-820
... by putting your thumb up in front of your face, and closing one eye and then the other. ...
... by putting your thumb up in front of your face, and closing one eye and then the other. ...
Introduction to the EarthESci 100Dr. Albanese, Tuesdays and
... 19. Using stellar parallax, astronomers are able to determine the distance to even the most distant stars. 20. Red giants are considerably more massive than blue main-sequence stars. 21. The most massive main-sequence stars are red in color. 22. The Milky Way is classified as an elliptical galaxy. 2 ...
... 19. Using stellar parallax, astronomers are able to determine the distance to even the most distant stars. 20. Red giants are considerably more massive than blue main-sequence stars. 21. The most massive main-sequence stars are red in color. 22. The Milky Way is classified as an elliptical galaxy. 2 ...
What are stars?
... Compare the development of a less-massive star with that of a more-massive star. ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ _______________ ...
... Compare the development of a less-massive star with that of a more-massive star. ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ _______________ ...
Chapter 8, Lesson 4, 2nd Packet, pdf
... Compare the development of a less-massive star with that of a more-massive star. ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ _______________ ...
... Compare the development of a less-massive star with that of a more-massive star. ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ _______________ ...
AST 207 Homework 5 Due 14 October 2011
... 2. Life on Deneb. Here you will find out what it means to live near a giant like Deneb. Recall that the luminosity of a star, where T is its temperature and R is its radius. Star ...
... 2. Life on Deneb. Here you will find out what it means to live near a giant like Deneb. Recall that the luminosity of a star, where T is its temperature and R is its radius. Star ...
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.