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The Milky Way - Houston Community College System
The Milky Way - Houston Community College System

Powerpoint
Powerpoint

... dynamic balance between gravity and pressure – they have large oscillations around stability. ...
SkyMatters Jan-2017 - CIT Blackrock Castle Observatory
SkyMatters Jan-2017 - CIT Blackrock Castle Observatory

... of the 4th will be the best time for viewing because the first-quarter Moon will have set and the skies should be dark. Don’t be discouraged if you live in a city or town. If you can see some stars you can see some meteors! The Quadrantids are believed to be the leftover debris from an extinct comet ...
PH607lec10
PH607lec10

... formation event a few million years ago. The existence of these relatively young (though evolved) stars there was of a surprise to experts, who would have expected the tidal forces from the central black-hole to prevent their formation. They are much too young to have migrated far, but it seems even ...
A Star is
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... • Big stars appear brighter than smaller stars of the same temperature • Our sun is considered a medium-sized star • Most stars visible from Earth are medium-sized stars. • Many stars also have about the same mass as the sun, however some stars may be more or less ...
Astronomy Test Review
Astronomy Test Review

IB_Op_F_04 - Effectsmeister
IB_Op_F_04 - Effectsmeister

... red giant and one white dwarf.have low surface temperature and large negative absolute magnitude. A bit above the middle of the main sequence are the variable stars, called so since they have a time variation of their magnitude. Identify from your diagram at least one candidate for a variable star. ...
Scorpius: The Scorpion Σκορπιος Amber Perrine Physics 1040 MWF
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... As told in another story, Orion was out in the woods one day when he caught sight of seven beautiful sisters, the daughters of Atlas and Pleione. Orion immediately fell in love with all seven sisters and began to pursue them. However, the sisters were terrified of him and cried out to Zeus to save ...
Consulting the Planetary Expert: You
Consulting the Planetary Expert: You

... For thousands of years humans have looked up at the sky in wonder. As they observed they learned the sky was constant and predictable. They learned to tell the time of day, the date, the weather, their position and the occurrence of tides and eclipses. Many other events were thought to depend on the ...
A Star is Born – Worksheet and Key – Ben Kwok
A Star is Born – Worksheet and Key – Ben Kwok

EMR, Telescopes, Stars, Solar System study guide `14-15
EMR, Telescopes, Stars, Solar System study guide `14-15

... 9. The distance that light travels in a year is known as a _________________________. 10. The time it takes light from a star 100 light years away to reach Earth is ___________________. 11. Parallax is used to find the ____________________________ to nearby stars. 12. Astronomers use a _____________ ...
lecture25
lecture25

... Radar ranging - good for measuring distances in the solar system (up to about 0.0001 light years) Parallax - good for measuring distances to a few hundred light years ...
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Attachment

... together by gravity. The nearest star to Earth is the Sun, which is the source of most of the energy on the planet. Historically, the most prominent stars on the celestial sphere were grouped together into constellations and asterisms, and the brightest stars gained proper names. ...
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Models of the sky—11 Sept Changes in the Sky

... The constellations change over the months. The sun (and moon and stars) rises & sets. The sun is higher in the sky in summer than winter. • Planets move with respect to the stars. • Comets appear irregularly. ...
The Milky Way
The Milky Way

... Astronomy is exciting because it is about us. As you think about the deaths of stars, you are also thinking about the safety of Earth as a home for life and about the ultimate fate of our sun, our Earth, and the atoms of which you are made. ...
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Lesson Plans - Houston ISD

... Ⓡ _SCI.8.8A Describe components of the universe including stars, nebulae and galaxies, and use models such as the Herztsprung-Russell diagram for classification. Ⓢ _SCI.8.8B Recognize that the Sun is a medium-sized star near the edge of a disc-shaped galaxy of stars and that the Sun is many thousand ...
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Yes, we are all star dust. Even Gary!
Yes, we are all star dust. Even Gary!

... Stars condense from “birthing” nebulae and die as “funerary” nebulae. The “life steps” taken depend on the mass of the star: 0.1 – 1.4 solar masses = condense, main sequence star of Hertzprung-Russell Diagram (ie like our Sun). Core condenses and outer layers expand to a giant star, possible nebula, ...
Chapter 13: The Death of Stars
Chapter 13: The Death of Stars

... III. The Deaths of Massive Stars A. Nuclear Fusion in Massive Stars B. The Iron Core C. The Supernova Deaths of Massive Stars D. Types of Supernovae E. Observations of Supernovae F. The Great Supernova of 1987 G. Local Supernovae and Life on Earth ...
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PHYSICS 1500 - ASTRONOMY TOTAL: 100 marks Section A Please

Astronomy in 1936 The History of the Universe
Astronomy in 1936 The History of the Universe

... Find a computer with decent bandwidth over the internet. Point your web browser to www. stsci.edu Click on “Digitized sky survey” on the side-bar. Now click on “retrieve image data” buried in the middle of the text. Set “File Format” to GIF. (You may have to reset this each time you get a new image) ...
Astronomy
Astronomy

... 25. Reactions that join the nuclei of atoms to form more massive nuclei. 26. Eruptions on the solar surface that return back to the sun’s surface. 27. The final stage for stars less than 8 x solar mass, once fusion has stopped. Our sun’s final stage. 28. The positively charged particle of an atom, f ...
Ch 19 Directed Reading
Ch 19 Directed Reading

... 17. A huge explosion in which a large star dies is called a _____________________________. 18. A star made up of neutrons is called a _____________________________. 19. A spinning neutron star that emits pulses of energy is called a _____________________________. 20. An object so massive and dense t ...
Earth and the Universe Chapter Problems The Universe Class Work
Earth and the Universe Chapter Problems The Universe Class Work

... 1. List four things included in the universe. 2. What force holds galaxies together? 3. List three different types of galaxies. Homework 4. What is the name of the galaxy in which we live? 5. In what type of galaxy do we live? The Sun Class Work 6. What type of celestial object is the sun? 7. When o ...
Unit 4: Astronomy
Unit 4: Astronomy

... of these in addition to an optical telescope. Assignment #2: Pages 568, 587-588 Topics: Distances to and motion of stars Objectives: 1) Describe how astronomers were first able to measure the distances to stars. 2) Describe the unit of the length developed by astronomers to measure and describe dist ...
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Ursa Major



Ursa Major /ˈɜrsə ˈmeɪdʒər/ (also known as the Great Bear and Charles' Wain) is a constellation in the northern celestial hemisphere. One of the 48 constellations listed by Ptolemy (second century AD), it remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its name, Latin for ""the greater (or larger) she-bear"", stands as a reference to and in direct contrast with Ursa Minor, ""the smaller she-bear"", with which it is frequently associated in mythology and amateur astronomy. The constellation's most recognizable asterism, a group of seven relatively bright stars commonly known as the ""Big Dipper"", ""the Wagon"" or ""the Plough"" (among others), both mimicks the shape of the lesser bear (the ""Little Dipper"") and is commonly used as a navigational pointer towards the current northern pole star, Polaris in Ursa Minor. The Big Dipper and the constellation as a whole have mythological significance in numerous world cultures, usually as a symbol of the north.The third largest constellation in the sky, Ursa Major is home to many deep-sky objects including seven Messier objects, four other NGC objects and I Zwicky 18, the youngest known galaxy in the visible universe.
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