Chapter 20 The Universe
... Distance that light travels in 1 yr. ~10 billion km Sirius (Dog star) only 9 light years away Proxima Centauri (closest) 4.25 light yrs Other than sun Galaxy- large grouping of stars -our solar system is part of Milky Way Galaxy - what we see as the Milky Way is only the edge (spiral galaxy) ...
... Distance that light travels in 1 yr. ~10 billion km Sirius (Dog star) only 9 light years away Proxima Centauri (closest) 4.25 light yrs Other than sun Galaxy- large grouping of stars -our solar system is part of Milky Way Galaxy - what we see as the Milky Way is only the edge (spiral galaxy) ...
CHAPTER 2 NOTES (STARS AND GALAXIES)
... 3 types of galaxies are: 1. spiral- arms like a pinwheel ex our galaxy- Milky Way 2. elliptical- nearly spherical to flatdisks (older than other galaxies) 3. irregular- no orderly or definite shape, not very common Milky Way Galaxy- pinwheel shaped disk with bulge in center -the older stars are near ...
... 3 types of galaxies are: 1. spiral- arms like a pinwheel ex our galaxy- Milky Way 2. elliptical- nearly spherical to flatdisks (older than other galaxies) 3. irregular- no orderly or definite shape, not very common Milky Way Galaxy- pinwheel shaped disk with bulge in center -the older stars are near ...
Constellation Notes
... The sky was divided up into 88 different constellations in 1922. This included 48 ancient constellations listed by the Greek astronomer Ptolemy as well as 40 new constellations. Star Maps The 88 different constellations divide up the entire night sky as seen from all around the Earth. Star maps are ...
... The sky was divided up into 88 different constellations in 1922. This included 48 ancient constellations listed by the Greek astronomer Ptolemy as well as 40 new constellations. Star Maps The 88 different constellations divide up the entire night sky as seen from all around the Earth. Star maps are ...
the life cycle of stars
... • Energy is generated in the core and causes the star to shine. • The size of the star changes very little as long as its supply of hydrogen nuclei fuse into helium nuclei. ...
... • Energy is generated in the core and causes the star to shine. • The size of the star changes very little as long as its supply of hydrogen nuclei fuse into helium nuclei. ...
The Life of a Star
... after the main-sequence stage. • This is a star that expands and cools because it has used up all of its hydrogen. • The center of the star shrinks, but the atmosphere gets very large. • The star may become a supergiant (100 times bigger than the sun). ...
... after the main-sequence stage. • This is a star that expands and cools because it has used up all of its hydrogen. • The center of the star shrinks, but the atmosphere gets very large. • The star may become a supergiant (100 times bigger than the sun). ...
Diapositiva 1
... ionizing radiation from the Trapezium stars, mostly from the brightest star Theta-1 Orionis C powers the complex star forming region's entire visible glow. About three million years old, the Orion Nebula Cluster was even more compact in its younger years and a recent dinamical study indicates that r ...
... ionizing radiation from the Trapezium stars, mostly from the brightest star Theta-1 Orionis C powers the complex star forming region's entire visible glow. About three million years old, the Orion Nebula Cluster was even more compact in its younger years and a recent dinamical study indicates that r ...
22 October: The Formation of Stars
... • When we see massive main sequence stars (spectral class O), we know they are young. • With fairly simple observations, we can find groups of O and B stars (OB associations) ...
... • When we see massive main sequence stars (spectral class O), we know they are young. • With fairly simple observations, we can find groups of O and B stars (OB associations) ...
the lab handout here
... Which of the stars you plotted was the brightest? ____________ hottest? ____________ ...
... Which of the stars you plotted was the brightest? ____________ hottest? ____________ ...
Chapter 16 Lesson 2: What is a Star
... Ribbons of gas called prominence leap out of the chromosphere that can also erupt like a volcano. 1. This is a solar flare which can last for minutes or hours. V. The Life of Stars a. New stars form in a nebula which is a cloud of dust and gas pulled together by gravity. 1. The temperature rises, hy ...
... Ribbons of gas called prominence leap out of the chromosphere that can also erupt like a volcano. 1. This is a solar flare which can last for minutes or hours. V. The Life of Stars a. New stars form in a nebula which is a cloud of dust and gas pulled together by gravity. 1. The temperature rises, hy ...
Chapter 30
... seen in the sky during different seasons of the year? A. Stellar motion around Polaris B. Earth’s rotation on its axis C. Earth’s revolution around the sun D. Position north or south of the equator ...
... seen in the sky during different seasons of the year? A. Stellar motion around Polaris B. Earth’s rotation on its axis C. Earth’s revolution around the sun D. Position north or south of the equator ...
Starry Starry Night Vocabulary
... Nebula: Any of the numerous clouds of gas or dust located in interstellar space. Protostar: The hot core at the center of the collapsing cloud of gas and dust that one day becomes a star. This is the early stage in the process of star formation. Solar flare: A sudden, rapid, and intense variation in ...
... Nebula: Any of the numerous clouds of gas or dust located in interstellar space. Protostar: The hot core at the center of the collapsing cloud of gas and dust that one day becomes a star. This is the early stage in the process of star formation. Solar flare: A sudden, rapid, and intense variation in ...
Characteristics of stars powerpoint
... • Distance across the Milky Way = 250 million billion kilometers • Even if you could travel at the speed of light it would still take you 25,000 years to cross the galaxy ...
... • Distance across the Milky Way = 250 million billion kilometers • Even if you could travel at the speed of light it would still take you 25,000 years to cross the galaxy ...
Cassiopeia (constellation)
Cassiopeia is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivalled beauty. Cassiopeia was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy, and it remains one of the 88 modern constellations today. It is easily recognizable due to its distinctive 'M' shape when in upper culmination but in higher northern locations when near lower culminations in spring and summer it has a 'W' shape, formed by five bright stars. It is bordered by Andromeda to the south, Perseus to the southeast, and Cepheus to the north. It is opposite the Big Dipper.In northern locations above 34ºN latitude it is visible year-round and in the (sub)tropics it can be seen at its clearest from September to early November in its characteristic 'M' shape. Even in low southern latitudes below 25ºS is can be seen low in the North.