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13800000000 Years Ago The First Sky
13800000000 Years Ago The First Sky

Microsoft Word Document
Microsoft Word Document

Mountain-Skies-2016-0718
Mountain-Skies-2016-0718

... to  the  west  and  shines  brightly  about  a  third  of  the  way  up  in  the  southwest  as  the  sky  darkens.    It  is   quickly  sinking  into  the  west  and  will  be  lost  to  us  by  early  September.   The  red  planet  Mars  is  well  up  in  the  south  these  evenings.    It  is  qu ...
Stellar Evolution and the HR Diagram Study Guide
Stellar Evolution and the HR Diagram Study Guide

... Most stars are composed mainly of hydrogen and helium. ...
s*t*a*r chart - Ontario Science Centre
s*t*a*r chart - Ontario Science Centre

... The star groups linked by lines are the constellations created by our ancestors thousands of years ago as a way of mapping the night sky. Modern astronomers still use the traditional names, which give today’s stargazers a permanent link to the sky myths and legends of the past. This season's evening ...
Expansion of the Universe
Expansion of the Universe

... fantastic rate It is still expanding today After the big bang, the universe expanded quickly (and continues to expand) and then cooled down enough for atoms to form. Gravity pulled the atoms together into gas clouds that eventually became stars, which comprise young galaxies ...
STAAR Review – Week Ten
STAAR Review – Week Ten

... 12. In the center of the Milky Way is a large bulge of stars. Within this bulge lies a black hole. The Sun is located – a. outside of the Milky Way. b. in the large bulge of stars near the center of the Milky Way. c. in the black hole in the center of the Milky Way. d. near the edge of the Milky Way ...
Life Cycle of Stars
Life Cycle of Stars

...  Consists of more than 200 billion stars and is more than 100, 000 ly across  The sun lies 30, 000 ly away from the centre of the galaxy  Is a barred spiral galaxy with two spiral arms. The central bulge is a huge collection of old stars. It is surrounded by spinning disc of newer stars and clump ...
The Life Cycle of a Star Webquest:
The Life Cycle of a Star Webquest:

... 15. What is the scientific name for the twinkling of stars? ___________________________ 16. Why do stars twinkle? ____________________________________________________________ _____________________________________________________________________________________ 17. Why don’t planets twinkle? ________ ...
7a Properties of Stars.pptx
7a Properties of Stars.pptx

... •  Measured  in  light-­‐years  –  distance  light  travels  in   one  year  (9.5  x  1012    or  9.5  trillion  kilometers)   ...
Project Packet - Montville.net
Project Packet - Montville.net

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... following causes the phases of the moon? A. Over the course of a month, different parts of the moon’s reflected sunlight are visible from Earth. B. The moon reflects differing amounts of sunlight as it revolves around the Earth. C. The moon rotates more slowly than the Earth, with one rotation every ...
Constellations, Star Names, and Magnitudes
Constellations, Star Names, and Magnitudes

HERE - physicsisphun.org
HERE - physicsisphun.org

... is more toward the blue or violet end of the visible light spectrum. • Cooler objects glow with light intensity at the longer wavelengths or more toward the red end of the spectrum. Spectral Lines and composition ...
File - SMIC Physics
File - SMIC Physics

... • ~ 1 trillion stars • Stars (including Sun) orbit around the core. It takes 225 million years for the Sun to make 1 round around the core. • Has a supermassive black hole at its center. It is about 2.5 million times as massive as the Sun. ...
Hubble`s Law is the relation between the recession velocity of a
Hubble`s Law is the relation between the recession velocity of a

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... 4. A small, hot, dim star that is the leftover center of an old star is called a ___________ ____________. 5. A cloud of gases and dust that forms before the birth of a star is a _________. 6. An apparent shift in the position of an object when viewed from different locations is ____________________ ...
Sample final exam
Sample final exam

... B. Normal stars near a radio source called Sagittarius A* have elliptical fast orbits C. No matter where you look, the sky is filled with microwaves of a particular frequency a. Supermassive black hole at the center of the Milky Way b. Evidence for the Big Bang c. The universe is accelerating its ex ...
Topic 3: Astronomy
Topic 3: Astronomy

... - constellation: a group of stars that appears to form a pattern that looks like a familiar object or character - asterism: a distinct star group that is part of a constellation (EX/ the Big Dipper is an asterism that is part of a larger constellation called Ursa Major) - as Earth rotates, constella ...
Life Cycle of Stars
Life Cycle of Stars

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Sequence of Stars Notes

1” “Sky-Notes” of the Open University Astronomy Club. October 2005
1” “Sky-Notes” of the Open University Astronomy Club. October 2005

... Beta () Persei, Algol. +2.2 to +3.4, period 2.7 days. Favourable evening minima this month occur on the 17th and 20th. Delta () Cephei. +3.5 to +4.4, period 5.37 days. The prototype for the Cepheid class of variable stars. Their period-luminosity relationship has lead them to being used as “standa ...
The Zodiac - Alchemical.org
The Zodiac - Alchemical.org

... Capricorn (Capricornus), the Water Goat or "Goat-Fish" begins the "watery" portion of the Zodiac, three constellations associated with water, the Water Goat, the Water Bearer, and the Fishes. The ancient Babylonians saw the constellation as representing Ea, the fish-god who they also associated with ...
20081 Study Guide_77-120
20081 Study Guide_77-120

... To help students understand how astronomers can infer the existence of black holes, use the example of two ice skaters holding hands and spinning in a circle. If one of the skaters were invisible, an observer could still infer that two skaters were present by observing the effect the invisible skate ...
Spectral Class and Colour index
Spectral Class and Colour index

< 1 ... 280 281 282 283 284 285 286 287 288 ... 317 >

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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