PPT-LIFE CYCLE OF STARS

PROTOSTAR Region of gas and dust create a nebula Gravity causes the gas and dust to condense creating a protostar The prefix proto means first or original A . Denition :Anr-cycleisdenotedby(i1i2:::ir):Example :11=(1)1cycle1212=(1)1cycle1221=(12)2cycle123321=(13)2cycle123231=(123)3cycle12344312=(1423)4cycle1234535421=(13425)5cycle12345 Seed. Pumpkin seeds grow in the hallowed out portion of the pumpkin. . Because they have seeds pumpkins are a fruit. . Seedling. After planting the seeds in late spring, a pair of green leaves will push up through the soil. . B-V color index way of quantifying this - determining spectral class - using two different filters. one a blue (B) filter that only lets a narrow range of colors or wavelengths through centered on the blue colors, . Generally speaking, . there are two main life cycles for stars. . . The factor which determines the life cycle of the star is its mass. . . 1 solar mass = size of our Sun. Any star less than about three solar masses will spend almost all of its existence in what is called the “Main Sequence”. . Compare the life cycles of different kinds of animals.. Vocabulary . Adult. -the stage of an animal’s life cycle when it reproduces. . Egg. -a structure containing food that young animals need in order to grow. . The Nazi Holocaust 1939 – 1945. Link to a particular place and time. Europe 1939 – 1945. The concentration camps where an estimated 6 million Jews met their deaths. “I sang the ancient psalms at dusk . The “. Cosmic Distance Ladder. ”. Visual. “. Parallax. ”. “. Binocular. Vision”…. Let’s us “see” 3D images . (depth). …but, how to do this to get . Astronomical Distances. ?. “. Do Now. SWBAT explain the life cycle of different types of stars. Turn in your Homework. Grab your clicker. Complete the “Are we made of star stuff” Misconception sheet.. January 24. Waning Crescent. Do Now. SWBAT explain the life cycle of different types of stars. Turn in your Homework. Grab your clicker. Complete the “Are we made of star stuff” Misconception sheet.. January 24. Waning Crescent. constellations. a. Ancient cultures used . mythology. or everyday items to name constellations. 2. Modern astronomy studies . 88 . constellations. 3. Some constellations are not . visible. all year because Earth revolves around the Sun. Stars 1. Patterns of stars – constellations a. Ancient cultures used mythology or everyday items to name constellations 2. Modern astronomy studies 88 constellations 3. Some constellations are not HR-Diagram- What is it?. Stands for the . Hertzsprung. -Russell Diagram. Graphs surface temperature (color) vs. Absolute Brightness (Luminosity). Horizontal Axis- Surface Temp/Color. Vertical Axis- Absolute Brightness . th. Grade. This is a Hubble Heritage image of Sagittarius Star field. From left to right the image is 13.3 light-years across. What do you notice by looking at this image? . From the picture you should have noticed that stars have _______________.The different colors indicate the __________________ of a star.. How do stars work and evolve?. Why do stars shine?. Nuclear reactions. Fusion and fission reactions. How nuclear reactions can create energy. Why is it hard to get fusion nuclear reactions to occur?.