Stars - Clover Sites
... 10. Name five constellations that are visible between sunset and midnight in your hemisphere during: a. The summer months. b. The winter months. 11. At what time of year is the constellation Orion best seen? Locate and idenify in the sky the three brightest stars of this constellation. 12. How are ...
... 10. Name five constellations that are visible between sunset and midnight in your hemisphere during: a. The summer months. b. The winter months. 11. At what time of year is the constellation Orion best seen? Locate and idenify in the sky the three brightest stars of this constellation. 12. How are ...
PPT - University of Delaware
... Usually neglected since speed of light is VERY large Becomes significant in very bright objects – e.g. Lasers, Hot Stars Question is: How big is this force vs. gravity? For the Sun, Mass lost over lifetime ~ 0.01% For hot stars (M = 10 - 50 M) mass can be reduced by ½! ...
... Usually neglected since speed of light is VERY large Becomes significant in very bright objects – e.g. Lasers, Hot Stars Question is: How big is this force vs. gravity? For the Sun, Mass lost over lifetime ~ 0.01% For hot stars (M = 10 - 50 M) mass can be reduced by ½! ...
The Lives of Stars
... Astronomers speculate that stars form from gas and dust clouds called nebulae Gravity pulls the material togethe Accumulating gas increases temperature At 10,000,000 degrees nuclear fusion begins (transformation of hydrogen into helium) ...
... Astronomers speculate that stars form from gas and dust clouds called nebulae Gravity pulls the material togethe Accumulating gas increases temperature At 10,000,000 degrees nuclear fusion begins (transformation of hydrogen into helium) ...
Problem set 1 1. The binding energy per nucleon for 56Fe is 8.8MeV
... 1. The binding energy per nucleon for 56 Fe is 8.8 MeV per nucleon. Estimate the total energy released per kilogram of matter by the sequence of reactions which fuse hydrogen to iron. 2. The main sequence of the Pleiades cluster of stars consists of stars with mass less than 6M ; the more massive s ...
... 1. The binding energy per nucleon for 56 Fe is 8.8 MeV per nucleon. Estimate the total energy released per kilogram of matter by the sequence of reactions which fuse hydrogen to iron. 2. The main sequence of the Pleiades cluster of stars consists of stars with mass less than 6M ; the more massive s ...
UNIT 4 STUDY GUIDE Objectives
... The force of gravity depends on what two factors? What two factors keep moons and planets in orbit? What causes the phases of the moon? What are the eight phases of the moon? Sketch each one. What is an eclipse? What are the two types of eclipses? What causes each one? What is the difference between ...
... The force of gravity depends on what two factors? What two factors keep moons and planets in orbit? What causes the phases of the moon? What are the eight phases of the moon? Sketch each one. What is an eclipse? What are the two types of eclipses? What causes each one? What is the difference between ...
etlife_exoplanets - University of Glasgow
... like fingerprints, to identify the chemicals that stars and planets are made of. ...
... like fingerprints, to identify the chemicals that stars and planets are made of. ...
Another exAmple: expository mode
... known as nuclear fusion to produce light. As stars use up this hydrogen, in a process that takes billions of years, they pass through certain phases or stages. In each stage, the star’s brightness, temperature, and size change. The redgiant phase occurs when the star begins to run out of hydrogen. I ...
... known as nuclear fusion to produce light. As stars use up this hydrogen, in a process that takes billions of years, they pass through certain phases or stages. In each stage, the star’s brightness, temperature, and size change. The redgiant phase occurs when the star begins to run out of hydrogen. I ...
Out of this World
... travelling around another. - It takes the Earth one year to travel, or revolve, in a circle around the Sun counter-clockwise. - This motion allows us to see different constellations during different seasons. ...
... travelling around another. - It takes the Earth one year to travel, or revolve, in a circle around the Sun counter-clockwise. - This motion allows us to see different constellations during different seasons. ...
Astronomy word grid
... 14. Name given to the line between day and night on the Moon 17. The brightest star in the northern sky 18. The apparent backwards movement of the planets in the sky 22. A type of variable star used to measure distance 25. The name used to describe the brightness of a star 26. The name given to a ve ...
... 14. Name given to the line between day and night on the Moon 17. The brightest star in the northern sky 18. The apparent backwards movement of the planets in the sky 22. A type of variable star used to measure distance 25. The name used to describe the brightness of a star 26. The name given to a ve ...
Solar System Study Guide Answer Key
... The ____sun______ is the center of the Solar System. The air surrounding Earth is our __________atmosphere_____. Meteors are objects that ___burn_ up as they enter the Earth’s atmosphere. 5. The ______sun__ is the only ___star______ close enough for us to study. 6. Natural satellites that orbit bodi ...
... The ____sun______ is the center of the Solar System. The air surrounding Earth is our __________atmosphere_____. Meteors are objects that ___burn_ up as they enter the Earth’s atmosphere. 5. The ______sun__ is the only ___star______ close enough for us to study. 6. Natural satellites that orbit bodi ...
Exploring the Universe
... Eye ⇒ photographic plate: long exposures possible Now replaced by very sensitive electronic detectors ...
... Eye ⇒ photographic plate: long exposures possible Now replaced by very sensitive electronic detectors ...
etlife_douglas_ewart_short
... gas giants, much bigger and closer to their parent star than the Earth is to the Sun. ...
... gas giants, much bigger and closer to their parent star than the Earth is to the Sun. ...
22 October: The Formation of Stars
... • To see how stars form, look at places where there are young 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 ...
... • To see how stars form, look at places where there are young 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 ...
WHAT IS A STAR? - cloudfront.net
... Gravity forces the hydrogen atoms together so strongly that they fuse. When that happens, a new element called helium is formed and a little bit of energy is released. We call that energy starlight. ...
... Gravity forces the hydrogen atoms together so strongly that they fuse. When that happens, a new element called helium is formed and a little bit of energy is released. We call that energy starlight. ...
SNC1PL Celestial Objects and Constellations
... consistent patterns in the night sky. The IAU (International Astronomical Union) recognizes 88 constellations, but only 20 are truly prominent and may be easily identified ...
... consistent patterns in the night sky. The IAU (International Astronomical Union) recognizes 88 constellations, but only 20 are truly prominent and may be easily identified ...
Stellar Evolution
... layers are driven away • Core becomes hot enough to produce Carbon (C) • Star contracts to normal size when helium is used up • Carbon core left over, White dwarf remains ...
... layers are driven away • Core becomes hot enough to produce Carbon (C) • Star contracts to normal size when helium is used up • Carbon core left over, White dwarf remains ...
Asteroseismology and the Solar
... • Space-based asteroseismology will extend the calibration of stellar structure/evolution models to many new sets of physical conditions and ages. • Measurements of latitudinal differential rotation and convection zone depths will provide new constraints for solar/stellar dynamo models. ...
... • Space-based asteroseismology will extend the calibration of stellar structure/evolution models to many new sets of physical conditions and ages. • Measurements of latitudinal differential rotation and convection zone depths will provide new constraints for solar/stellar dynamo models. ...
Stars - White Plains Public Schools
... Luminosity is how bright a star is compared to the Sun if they were the same distance away. Stars are classified based on luminosity and temperature. Temperature affects the color of stars. Red = cool Blue = hot ...
... Luminosity is how bright a star is compared to the Sun if they were the same distance away. Stars are classified based on luminosity and temperature. Temperature affects the color of stars. Red = cool Blue = hot ...
