FUN THINGS TO DO
... with dragons. There is no dinosaur constellation, but there is a dragon in the northern sky! Its name is Draco the dragon, and it’s easy to find if you know its neighbors. Locate the Big Dipper in the night sky. Then use the front “pointer” stars to find the North Star. We know that the North Star i ...
... with dragons. There is no dinosaur constellation, but there is a dragon in the northern sky! Its name is Draco the dragon, and it’s easy to find if you know its neighbors. Locate the Big Dipper in the night sky. Then use the front “pointer” stars to find the North Star. We know that the North Star i ...
AST 301 Introduction to Astronomy - University of Texas Astronomy
... When helium fusion starts generating energy in the core of a red giant, the core expands and hydrogen fusion in the shell around the core slows down. As a result, less total energy is being generated, and the envelope contracts and warms up some. But pretty soon all of the helium in the core is conv ...
... When helium fusion starts generating energy in the core of a red giant, the core expands and hydrogen fusion in the shell around the core slows down. As a result, less total energy is being generated, and the envelope contracts and warms up some. But pretty soon all of the helium in the core is conv ...
Messier Galaxies of #202541
... point source. A bright large object can be very difficult to see (e.g. M33 and M101). Instead, a more suitable parameter is the surface brightness because it factors in the size of the object along with its magnitude. Another factor which influences an extended object’s appearance is its uniformity ...
... point source. A bright large object can be very difficult to see (e.g. M33 and M101). Instead, a more suitable parameter is the surface brightness because it factors in the size of the object along with its magnitude. Another factor which influences an extended object’s appearance is its uniformity ...
Slide 1
... which occur for a single massive star and those which occur because of mass transfer onto a white dwarf in a binary system • Difference between the two types lies only in what gets the process started toward the explosion ...
... which occur for a single massive star and those which occur because of mass transfer onto a white dwarf in a binary system • Difference between the two types lies only in what gets the process started toward the explosion ...
Constellations - Jolie McLaine`s Senior Project
... shepherd called Hyrieus. Once, Zeus, Hermes, and Poseidon stopped by ...
... shepherd called Hyrieus. Once, Zeus, Hermes, and Poseidon stopped by ...
Spectral Classification and the HR Diagram
... As director of the Harvard College Observatory Edward C. Pickering (1846-1919) undertook the oversight for completion of the Henry Draper Catalogue. Because it was the goal of this project to classify a sufficient number of stars so that it would be years before anyone felt the need to repeat such a ...
... As director of the Harvard College Observatory Edward C. Pickering (1846-1919) undertook the oversight for completion of the Henry Draper Catalogue. Because it was the goal of this project to classify a sufficient number of stars so that it would be years before anyone felt the need to repeat such a ...
Assignment 8 - utoledo.edu
... a. friction, as the atoms of the expelled shell rub against each other b. the explosion of the dying star c. ultraviolet radiation from the hot star at the center d. the fusion of hydrogen into helium in the shell e. the change of electrons and protons into neutrons ____ 22. After the core of a mass ...
... a. friction, as the atoms of the expelled shell rub against each other b. the explosion of the dying star c. ultraviolet radiation from the hot star at the center d. the fusion of hydrogen into helium in the shell e. the change of electrons and protons into neutrons ____ 22. After the core of a mass ...
five minute episode script
... DISTINCTIVE BELT OF THREE STARS. IF YOU LOOK A LITTLE CLOSER YOU'LL SEE STARS OF DIFFERENT BRIGHTNESS AND COLOR. DEAN: STAR COLOR IS AN INDICATION OF ITS TEMPERATURE - BLUE STARS BEING THE HOTTEST AND RED STARS BEING THE COLDEST. YOU CAN REALLY SEE THE COLORS OF THE BRIGHTEST STARS LIKE THOSE IN ORI ...
... DISTINCTIVE BELT OF THREE STARS. IF YOU LOOK A LITTLE CLOSER YOU'LL SEE STARS OF DIFFERENT BRIGHTNESS AND COLOR. DEAN: STAR COLOR IS AN INDICATION OF ITS TEMPERATURE - BLUE STARS BEING THE HOTTEST AND RED STARS BEING THE COLDEST. YOU CAN REALLY SEE THE COLORS OF THE BRIGHTEST STARS LIKE THOSE IN ORI ...
Powerpoint Presentation (large file)
... medium are called nebulae • Dark nebulae are so dense that they are opaque • They appear as dark blots against a background of distant stars • Emission nebulae, or H II regions, are glowing, ionized clouds of gas • Emission nebulae are powered by ultraviolet light that they absorb from nearby hot st ...
... medium are called nebulae • Dark nebulae are so dense that they are opaque • They appear as dark blots against a background of distant stars • Emission nebulae, or H II regions, are glowing, ionized clouds of gas • Emission nebulae are powered by ultraviolet light that they absorb from nearby hot st ...
1 - Physics
... 15. Red dwarfs are very dim compared to the sun. What does this tell you about the energy generated at the core of a red dwarf? • A) red dwarfs generate energy more slowly • B) the energy takes longer to reach the surface • C) the energy has a harder time escaping from the red dwarf • D) this tells ...
... 15. Red dwarfs are very dim compared to the sun. What does this tell you about the energy generated at the core of a red dwarf? • A) red dwarfs generate energy more slowly • B) the energy takes longer to reach the surface • C) the energy has a harder time escaping from the red dwarf • D) this tells ...
SASS_Talk_4_16_08
... Earth Rotation = Sky Rotation Polaris - The North Star Circumpolar Star - “Around the Pole” star - Does not set below horizon in the sky at a particular latitude Noncircumpolar Star - Rises and sets at some time during the day or night ...
... Earth Rotation = Sky Rotation Polaris - The North Star Circumpolar Star - “Around the Pole” star - Does not set below horizon in the sky at a particular latitude Noncircumpolar Star - Rises and sets at some time during the day or night ...
1. How old is our sun now? How does its present luminosity
... (b) When it first formed its luminosity was about 70% of its present luminosity. (c) It takes a star like the sun about 10 Byrs to go from birth to the red giant stage. Thus it still has about 10 - 4.6 = 5.4 Byrs on the main sequence. (d) After the sun leaves the main sequence it will become a red g ...
... (b) When it first formed its luminosity was about 70% of its present luminosity. (c) It takes a star like the sun about 10 Byrs to go from birth to the red giant stage. Thus it still has about 10 - 4.6 = 5.4 Byrs on the main sequence. (d) After the sun leaves the main sequence it will become a red g ...
Unit 4: Astronomy
... 4) Describe why some of the stars in the sky at night are only visible at certain times of the year and change position in the sky from one night to the next. 5) Describe why a star’s position in the night sky changes from hour-to-hour on a given night of the year. Assignment #3 Pages: 582-587 Topic ...
... 4) Describe why some of the stars in the sky at night are only visible at certain times of the year and change position in the sky from one night to the next. 5) Describe why a star’s position in the night sky changes from hour-to-hour on a given night of the year. Assignment #3 Pages: 582-587 Topic ...
What tool do astronomers use to understand the evolution of stars?
... t B M B L A 1 300 300 60 Sun's lifetime ~ 10 billion years = 1010 yr = 10 Gyr. Lifetime of 5 solar mass star is 1010 yr/60 ~ 1010/102 yr = 108 yr = 102106 yr = 100 million yr = 100 Myr This is the age of the star cluster. ...
... t B M B L A 1 300 300 60 Sun's lifetime ~ 10 billion years = 1010 yr = 10 Gyr. Lifetime of 5 solar mass star is 1010 yr/60 ~ 1010/102 yr = 108 yr = 102106 yr = 100 million yr = 100 Myr This is the age of the star cluster. ...
Document
... system. It takes Mars 687 Earth days to orbit the sun with its radius of 227,840,000 km. ...
... system. It takes Mars 687 Earth days to orbit the sun with its radius of 227,840,000 km. ...
d = 1 / p
... the sky, but not most of the stars in the Galaxy (which is over 20000 parsecs across). Inverse Square Law – Calculating Luminosity ...
... the sky, but not most of the stars in the Galaxy (which is over 20000 parsecs across). Inverse Square Law – Calculating Luminosity ...
Our Solar System
... 1. Universe- contains everything that may or may not exist in space 2. Galaxy- system of stars held together by gravity. 3 types: Spiral, Elliptical, and Irregular. Ex: Milky Way 3. Nebula= interstellar cloud of gas 4. Star- self luminous sphere of gas. Ex: sun 5. Planet- celestial object moving in ...
... 1. Universe- contains everything that may or may not exist in space 2. Galaxy- system of stars held together by gravity. 3 types: Spiral, Elliptical, and Irregular. Ex: Milky Way 3. Nebula= interstellar cloud of gas 4. Star- self luminous sphere of gas. Ex: sun 5. Planet- celestial object moving in ...
Ursa Minor
Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.