Characteristics of Stars ppt.
... Although it is not always apparent from Earth, the distances of stars from Earth varies greatly, and all of the stars we see in the night sky are extremely far from Earth. These distances are so great that scientists measure them in light years (the distance light travels in one year.) ...
... Although it is not always apparent from Earth, the distances of stars from Earth varies greatly, and all of the stars we see in the night sky are extremely far from Earth. These distances are so great that scientists measure them in light years (the distance light travels in one year.) ...
Astronomy Unit Period
... __________ 5. Some of the light that radiates from a star a. is absorbed by elements in a star’s atmosphere. b. is absorbed by the star’s inner layers. c. is absorbed by other stars. d. is emitted through the universe. __________ 6. How can scientists identify a star’s elements? a. by its color c. b ...
... __________ 5. Some of the light that radiates from a star a. is absorbed by elements in a star’s atmosphere. b. is absorbed by the star’s inner layers. c. is absorbed by other stars. d. is emitted through the universe. __________ 6. How can scientists identify a star’s elements? a. by its color c. b ...
Southern cross Crux - The Southern Cross Crux, the Southern Cross
... Alpha Crucis is a double star, blue-white in color, with components of magnitude 1.4 and 1.9, separated by 4.4 arcseconds. It is the 14th brightest star in the sky. It is located 320 light-years from our solar system, and composed of two hot blue-white stars with luminosities 25,000 and 16,000 times ...
... Alpha Crucis is a double star, blue-white in color, with components of magnitude 1.4 and 1.9, separated by 4.4 arcseconds. It is the 14th brightest star in the sky. It is located 320 light-years from our solar system, and composed of two hot blue-white stars with luminosities 25,000 and 16,000 times ...
The life of Stars
... visible with bare eye, sometimes faint • Long period variable star: 332 days period • Cool red giants • Sometimes periodic, sometimes irregular • some eject gas into space ...
... visible with bare eye, sometimes faint • Long period variable star: 332 days period • Cool red giants • Sometimes periodic, sometimes irregular • some eject gas into space ...
Hertzsprung-Russell Diagram
... • Distance to the cluster can be determined by comparing the HR diagram of the cluster with a template HR diagram ...
... • Distance to the cluster can be determined by comparing the HR diagram of the cluster with a template HR diagram ...
Stars - Lauer Science
... nuclear fusion During nuclear fusion, two or more atoms of one element combine to form one atom of a different element ...
... nuclear fusion During nuclear fusion, two or more atoms of one element combine to form one atom of a different element ...
File - Adopt A Constellation
... use a telescope to look at the night sky. • Telescopes got stronger and astronomers could see more details on the planets. Scientists used pictures taken through telescopes to plan the first moon landing in 1969. • They put telescopes in observatories. Observatory – A building that protects telescop ...
... use a telescope to look at the night sky. • Telescopes got stronger and astronomers could see more details on the planets. Scientists used pictures taken through telescopes to plan the first moon landing in 1969. • They put telescopes in observatories. Observatory – A building that protects telescop ...
Unit 5 - Stars
... her trip. It was published and used as a souvenir for the Chicago World Fair in 1893. It was titled In the Footsteps of Columbus. While at home Annie became unhappy with the way her life was heading and wrote the following in her journal: ...
... her trip. It was published and used as a souvenir for the Chicago World Fair in 1893. It was titled In the Footsteps of Columbus. While at home Annie became unhappy with the way her life was heading and wrote the following in her journal: ...
10.5 The Hertzsprung
... • Distance to nearest stars can be measured by parallax • Apparent brightness is as observed from Earth; depends on distance and absolute luminosity • Spectral classes correspond to different surface temperatures • Stellar size is related to luminosity and temperature ...
... • Distance to nearest stars can be measured by parallax • Apparent brightness is as observed from Earth; depends on distance and absolute luminosity • Spectral classes correspond to different surface temperatures • Stellar size is related to luminosity and temperature ...
Constellations - Jolie McLaine`s Senior Project
... measuring luminosity and motion of nearby stars • First measurement was made by Friedrich Bessell in 1838 using a technique called parallax ...
... measuring luminosity and motion of nearby stars • First measurement was made by Friedrich Bessell in 1838 using a technique called parallax ...
9 spectroscopic parallax
... Absolute magnitude = how bright (what magnitude) a star would appear at 10 parsecs (32.6 light years) ...
... Absolute magnitude = how bright (what magnitude) a star would appear at 10 parsecs (32.6 light years) ...
Winter - Dark Sky Discovery
... charts here are far simpler and have fewer stars. You can just hold these up in front of you when you’re facing the appropriate direction and look up! Looking North The plough is perhaps the most easily recognised group of stars in the northern sky and it is a very useful ‘skymark’. The plough is al ...
... charts here are far simpler and have fewer stars. You can just hold these up in front of you when you’re facing the appropriate direction and look up! Looking North The plough is perhaps the most easily recognised group of stars in the northern sky and it is a very useful ‘skymark’. The plough is al ...
Ch16: The Milky Way
... The orbital speed (v) and radius (r) of a star on a circular orbit around the galaxy tells us the total mass (Mr) contained within that orbit ...
... The orbital speed (v) and radius (r) of a star on a circular orbit around the galaxy tells us the total mass (Mr) contained within that orbit ...
Stellar Evolution and the HR Diagram – Study Guide
... 13. Planetary nebulae are about the size of __Earth (planets)__ . 14. Neutron stars are about ___12__ miles in diameter. 15. The MOST massive of stars live (the longest or the shortest) lives. 16. Supernovas are produced by the explosion of _super massive__ stars. The remaining star is either a _ne ...
... 13. Planetary nebulae are about the size of __Earth (planets)__ . 14. Neutron stars are about ___12__ miles in diameter. 15. The MOST massive of stars live (the longest or the shortest) lives. 16. Supernovas are produced by the explosion of _super massive__ stars. The remaining star is either a _ne ...
(HR) Diagrams
... 15. When you look at the night sky with your naked eyes, can you see most of the nearest stars to earth? a. Why or why not? ...
... 15. When you look at the night sky with your naked eyes, can you see most of the nearest stars to earth? a. Why or why not? ...
09astrophysics_2007Nov
... Formula: Distance (pc)=1/parallax Limiting Optical resolution of telescope (due to wave nature of light) limits smallest parallax we can measure ...
... Formula: Distance (pc)=1/parallax Limiting Optical resolution of telescope (due to wave nature of light) limits smallest parallax we can measure ...
Chapter 1 Daily Note Sheets Completed Power Point
... • 1. Using the two pointer stars in the Big Dipper (Merak & Dubhe) create a straight line to the North Star • 2. Face north and count 4 fist and a finger up from the horizon (altitude) ...
... • 1. Using the two pointer stars in the Big Dipper (Merak & Dubhe) create a straight line to the North Star • 2. Face north and count 4 fist and a finger up from the horizon (altitude) ...
Star Classification
... Unported (CC BY-NC 3.0) License (http://creativecommons.org/ licenses/by-nc/3.0/), as amended and updated by Creative Commons from time to time (the “CC License”), which is incorporated herein by this reference. Complete terms can be found at http://www.ck12.org/terms. Printed: September 8, 2014 ...
... Unported (CC BY-NC 3.0) License (http://creativecommons.org/ licenses/by-nc/3.0/), as amended and updated by Creative Commons from time to time (the “CC License”), which is incorporated herein by this reference. Complete terms can be found at http://www.ck12.org/terms. Printed: September 8, 2014 ...
Stellar Spectra
... Classification of Stars • In the late 19th century astronomers categorized stars according to the strength of the hydrogen absorption lines in the spectrum. • They labels these A, B, ... from strongest to weakest. • Unfortunately, this was the wrong way to do it! ...
... Classification of Stars • In the late 19th century astronomers categorized stars according to the strength of the hydrogen absorption lines in the spectrum. • They labels these A, B, ... from strongest to weakest. • Unfortunately, this was the wrong way to do it! ...
The Solar System
... • Low mass stars: White Dwarfs • High mass stars: – supernova remnants, expanding at 10,000 km/s – may trigger future star formation? – Neutron stars: mass star but just 10 km across. • Teaspoon weighs 100 million tons! • Seen as Pulsars, flashing beacons in space. ...
... • Low mass stars: White Dwarfs • High mass stars: – supernova remnants, expanding at 10,000 km/s – may trigger future star formation? – Neutron stars: mass star but just 10 km across. • Teaspoon weighs 100 million tons! • Seen as Pulsars, flashing beacons in space. ...
CHAP
... - Light travels in space at a speed of about ____________ kilometers per second. - It takes the sun’s light __ minutes to travel from the sun to Earth. B. PARALLAX - Def. of Parallax: An apparent __________ in position of an object when you look at it from different places. C. PARALLAX IN ASTRONOMY ...
... - Light travels in space at a speed of about ____________ kilometers per second. - It takes the sun’s light __ minutes to travel from the sun to Earth. B. PARALLAX - Def. of Parallax: An apparent __________ in position of an object when you look at it from different places. C. PARALLAX IN ASTRONOMY ...
Name
... The apparent magnitude of stars was first recorded by the Greek astronomer Hipparchus about 160 B.C. Hipparchus grouped stars according to their brightness or magnitude. He called the twenty brightest stars first magnitude stars. Stars half that bright were second magnitude. Third magnitude stars we ...
... The apparent magnitude of stars was first recorded by the Greek astronomer Hipparchus about 160 B.C. Hipparchus grouped stars according to their brightness or magnitude. He called the twenty brightest stars first magnitude stars. Stars half that bright were second magnitude. Third magnitude stars we ...
Lec7_2D
... O-B-A-F-G-K-M. The traditional mnemonic is Oh Be A Fine Girl Kiss Me. (Recently, types L and T have been added to the cool end.) ...
... O-B-A-F-G-K-M. The traditional mnemonic is Oh Be A Fine Girl Kiss Me. (Recently, types L and T have been added to the cool end.) ...
Earth
... What is known about stars? What is the sun made of? The sun is a huge, glowing sphere of hot gas. Most of this gas is hydrogen (about 70%) and helium (about 28%). Carbon, nitrogen and oxygen make up 1.5% and the other 0.5% is made up of small amounts of many other elements such as neon, iron, silic ...
... What is known about stars? What is the sun made of? The sun is a huge, glowing sphere of hot gas. Most of this gas is hydrogen (about 70%) and helium (about 28%). Carbon, nitrogen and oxygen make up 1.5% and the other 0.5% is made up of small amounts of many other elements such as neon, iron, silic ...
Star catalogue
A star catalogue, or star catalog, is an astronomical catalogue that lists stars. In astronomy, many stars are referred to simply by catalogue numbers. There are a great many different star catalogues which have been produced for different purposes over the years, and this article covers only some of the more frequently quoted ones. Star catalogues were compiled by many different ancient peoples, including the Babylonians, Greeks, Chinese, Persians, and Arabs. Most modern catalogues are available in electronic format and can be freely downloaded from NASA's Astronomical Data Center.Completeness and accuracy is described by the weakest apparent magnitude V (largest number) and the accuracy of the positions.