chap17_f03_phints
... HINT: A star appears fainter if it is located further away, just like any luminous object. The magnitude of a star represents its brightness, either its perceived brightness, known as its apparent magnitude, or its actual, true, brightness, known as its absolute magnitude. More luminous stars have s ...
... HINT: A star appears fainter if it is located further away, just like any luminous object. The magnitude of a star represents its brightness, either its perceived brightness, known as its apparent magnitude, or its actual, true, brightness, known as its absolute magnitude. More luminous stars have s ...
properties of stars 2012
... A PULSATING variable is a star that is swelling and shrinking. As it swells, the same energy is spread over a larger area, the star cools and appears dimmer. (also, star cols because less pressure allows energy to escape) As it shrinks, it heats up (Gay-Lussac’s law--more pressure = higher temperatu ...
... A PULSATING variable is a star that is swelling and shrinking. As it swells, the same energy is spread over a larger area, the star cools and appears dimmer. (also, star cols because less pressure allows energy to escape) As it shrinks, it heats up (Gay-Lussac’s law--more pressure = higher temperatu ...
Extension worksheet – Topic 6 - Cambridge Resources for the IB
... explain, without any calculations, whether the distance to this star is greater or less ...
... explain, without any calculations, whether the distance to this star is greater or less ...
7a Properties of Stars.pptx
... • Luminosity is the measure of the energy output from the surface of a star per second. • This is based on the star’s apparent magnitude and how far away it is. • Sun = 3.85x1026 Wa?s = 3. ...
... • Luminosity is the measure of the energy output from the surface of a star per second. • This is based on the star’s apparent magnitude and how far away it is. • Sun = 3.85x1026 Wa?s = 3. ...
Teacher Sheet 1. What variables does the HR Diagram compare
... 14. Describe stars A, B, C, and D in terms of their brightness and temperature. Star A is red and therefore, cool. Its luminosity is 1/1000 of that of the sun; therefore, it is dim. Star B is a hot, blue star and very luminous. Both A and B are on the Main Sequence. Star C is also a hot, blue star. ...
... 14. Describe stars A, B, C, and D in terms of their brightness and temperature. Star A is red and therefore, cool. Its luminosity is 1/1000 of that of the sun; therefore, it is dim. Star B is a hot, blue star and very luminous. Both A and B are on the Main Sequence. Star C is also a hot, blue star. ...
Life cycle of Stars Notes
... only 60,000 years to reach stage 2. • Nuclear fusion begins when hydrogen starts to burn. ...
... only 60,000 years to reach stage 2. • Nuclear fusion begins when hydrogen starts to burn. ...
Winter constellations
... Following the line of Orion’s belt towards the upper right from Orion we reach the V of Taurus, the Bull, with another prominent red star, Aldebaran, making up the eye of the Bull. The Taurus constellation looks particularly brilliant with binoculars, glittering with young blue stars. Aldebaran is a ...
... Following the line of Orion’s belt towards the upper right from Orion we reach the V of Taurus, the Bull, with another prominent red star, Aldebaran, making up the eye of the Bull. The Taurus constellation looks particularly brilliant with binoculars, glittering with young blue stars. Aldebaran is a ...
iClicker Questions
... Discovering the Universe, Eighth Edition by Neil F. Comins and William J. Kaufmann III Chapter 12 12-1. Protostars are not seen in visible light telescopes because: a) they don’t emit any radiation b) they are surrounded by clouds of gas and dust * c) they only emit infrared radiation d) they are al ...
... Discovering the Universe, Eighth Edition by Neil F. Comins and William J. Kaufmann III Chapter 12 12-1. Protostars are not seen in visible light telescopes because: a) they don’t emit any radiation b) they are surrounded by clouds of gas and dust * c) they only emit infrared radiation d) they are al ...
What is a Scientist? - Cockeysville Middle School
... Objective: To identify characteristics of stars in order to explain how these characteristics affect a star’s appearance from Earth. Astronomy Note: How can you tell stars apart? ...
... Objective: To identify characteristics of stars in order to explain how these characteristics affect a star’s appearance from Earth. Astronomy Note: How can you tell stars apart? ...
The Big Dipper Constellation
... The Big Dipper What is a Constellation? From very early times, man has been fascinated by the stars. Early stargazers began naming stars. They also noticed patterns of stars that appeared night after night in the sky. These patterns or groupings of stars are called constellations. They also began to ...
... The Big Dipper What is a Constellation? From very early times, man has been fascinated by the stars. Early stargazers began naming stars. They also noticed patterns of stars that appeared night after night in the sky. These patterns or groupings of stars are called constellations. They also began to ...
PowerPoint - Earth Science with Mrs. Wilson
... They seem to form a picture in the sky. People use them to find their way around the sky like someone using objects to get from place to place. ...
... They seem to form a picture in the sky. People use them to find their way around the sky like someone using objects to get from place to place. ...
Star Life Guided Notes
... Core ________ at 1/4 the speed of light & takes about 1/10 of a second Collapse of the core to about 100 km across Outer layers “bounce” of the solid core Releases 100x the energy of our sun produces in it’s lifetime -- in 1/10 of a ...
... Core ________ at 1/4 the speed of light & takes about 1/10 of a second Collapse of the core to about 100 km across Outer layers “bounce” of the solid core Releases 100x the energy of our sun produces in it’s lifetime -- in 1/10 of a ...
8hrdiagram1s
... of this equation: p is in arcseconds (60 arcseconds per arcminute, 60 arcminutes per degree) d is in parsecs (1 pc = 3.26 light years = 3.09 X 1013 km) ...
... of this equation: p is in arcseconds (60 arcseconds per arcminute, 60 arcminutes per degree) d is in parsecs (1 pc = 3.26 light years = 3.09 X 1013 km) ...
Skywatch Astro Ed Dec13
... of other stars, then hurled into space as the stars died, where they could be incorporated into new stars. Population II stars formed when there were almost no heavier elements around, so they have only tiny amounts of them. But Population I stars, like the Sun, are younger, so they have higher prop ...
... of other stars, then hurled into space as the stars died, where they could be incorporated into new stars. Population II stars formed when there were almost no heavier elements around, so they have only tiny amounts of them. But Population I stars, like the Sun, are younger, so they have higher prop ...
Chapter 19 Notes Stars Stars are bright balls of gas that are trillions
... i. While many stars become white dwarves as they get older, very massive stars can become strange objects like pulsars, supernovas, black holes and neutron stars. ii. Supernovas 1. Massive stars use their hydrogen much faster than stars like the sun do. 2. At the end of their lives they may explode ...
... i. While many stars become white dwarves as they get older, very massive stars can become strange objects like pulsars, supernovas, black holes and neutron stars. ii. Supernovas 1. Massive stars use their hydrogen much faster than stars like the sun do. 2. At the end of their lives they may explode ...
HW #5 Answers (Due 9/29)
... stars that are just leaving the main sequence. Explain how this turn-off mass gives us the age of the cluster. As we found out in class, the more massive a star is the faster it uses up its fuel supply. For very massive stars, the fuel is used up in a matter of a couple million years. For less massi ...
... stars that are just leaving the main sequence. Explain how this turn-off mass gives us the age of the cluster. As we found out in class, the more massive a star is the faster it uses up its fuel supply. For very massive stars, the fuel is used up in a matter of a couple million years. For less massi ...
Stars
... • Because of this, they are called circumpolar constellations. • It appears that the constellations complete one full circle in the sky in about 24 hr. as Earth rotates on its axis. ...
... • Because of this, they are called circumpolar constellations. • It appears that the constellations complete one full circle in the sky in about 24 hr. as Earth rotates on its axis. ...
File - Science with Mrs. Schmidt
... _____ 10. A continuous spectrum is a spectrum that shows a. some of the colors. b. some of the colors and some black lines. c. all the colors. d. all the colors and some black lines. _____ 11. What instrument breaks a star’s light into a spectrum? a. a continuous spectrum b. a telescope c. a spectro ...
... _____ 10. A continuous spectrum is a spectrum that shows a. some of the colors. b. some of the colors and some black lines. c. all the colors. d. all the colors and some black lines. _____ 11. What instrument breaks a star’s light into a spectrum? a. a continuous spectrum b. a telescope c. a spectro ...
The Evening Sky in February 2016
... In February bright stars are nearly overhead. Sirius, the brightest star, is north of the zenith. Canopus, the second brightest star, is south of the zenith. Below and left of Sirius are Orion's bright stars: bluish Rigel and reddish Betelgeuse. Between them is the line of three stars making Orion's ...
... In February bright stars are nearly overhead. Sirius, the brightest star, is north of the zenith. Canopus, the second brightest star, is south of the zenith. Below and left of Sirius are Orion's bright stars: bluish Rigel and reddish Betelgeuse. Between them is the line of three stars making Orion's ...
Branches of Earth Science
... Light Year- Astronomers use light years to measure the distances ______________ stars o A light year is the distance that light ______________ in one year 9,460,730,472,580.8 km 5,878,630,000,000 miles Parallax- the apparent change in the ______________ of a star in the sky. o The change is due ...
... Light Year- Astronomers use light years to measure the distances ______________ stars o A light year is the distance that light ______________ in one year 9,460,730,472,580.8 km 5,878,630,000,000 miles Parallax- the apparent change in the ______________ of a star in the sky. o The change is due ...
Observational Astronomy Star Charts
... • Annual Motion – The Earth’s orbit around the Sun causes different stars and constellations to be visible at different times during the year. ...
... • Annual Motion – The Earth’s orbit around the Sun causes different stars and constellations to be visible at different times during the year. ...
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.