molecular clouds
... • Hydrogen and helium are the predominant components of the ISM, but it is enriched with heavier elements from earlier stars (created in stellar fusion and supernova explosions). ...
... • Hydrogen and helium are the predominant components of the ISM, but it is enriched with heavier elements from earlier stars (created in stellar fusion and supernova explosions). ...
Study Guide Astronomy
... Chapter 4 Section 4 Star Systems and Galaxies (pages 141-147) 20. What is the major difference between elliptical galaxies and spiral galaxies? ...
... Chapter 4 Section 4 Star Systems and Galaxies (pages 141-147) 20. What is the major difference between elliptical galaxies and spiral galaxies? ...
REVIEW: STAR`S TEST
... Approximately 90% of the visible universe’s mass is composed of ___hydrogen___ In the H-R diagram, stars are classified on the basis of ...
... Approximately 90% of the visible universe’s mass is composed of ___hydrogen___ In the H-R diagram, stars are classified on the basis of ...
Chapter 25 Study guide Answer Key
... 3) Which property of a star can be determined by its color? Temperature 4) About how many stars are estimated to occur in pairs or multiples? 50% ...
... 3) Which property of a star can be determined by its color? Temperature 4) About how many stars are estimated to occur in pairs or multiples? 50% ...
LT 9: I can describe how a protostar becomes a star.
... When Hydrogen in core is used up, gravity causes the core to collapse Temperature rises making the outer shell of the star super expand The surface temperature drops and it is now a huge, bright, red aging star ...
... When Hydrogen in core is used up, gravity causes the core to collapse Temperature rises making the outer shell of the star super expand The surface temperature drops and it is now a huge, bright, red aging star ...
Scale of Apparent Magnitudes of Celestial Objects
... The creator of the system for measuring the apparent brightness of stars is believed to be Hipparchus, who lived in Nicaea (Turkey) during the second century BCE. Hipparchus is believed by many to be the greatest of the ancient astronomers. The original scale of apparent magnitude gave the brightest ...
... The creator of the system for measuring the apparent brightness of stars is believed to be Hipparchus, who lived in Nicaea (Turkey) during the second century BCE. Hipparchus is believed by many to be the greatest of the ancient astronomers. The original scale of apparent magnitude gave the brightest ...
stars and galaxies – study guide
... 21. Hydrogen is the “fuel” of the sun. 22. By using a tool called a spectroscope astronomers can identify the elements in a star. 23. On an H-R Diagram, stars are classified by temperature and absolute magnitude. 24. What is the next stage of the sun? Red Giant 25. An example of a winter constellat ...
... 21. Hydrogen is the “fuel” of the sun. 22. By using a tool called a spectroscope astronomers can identify the elements in a star. 23. On an H-R Diagram, stars are classified by temperature and absolute magnitude. 24. What is the next stage of the sun? Red Giant 25. An example of a winter constellat ...
Life Cycle of a Star
... Red giant star that expands and cools once it loses all its hydrogen Center shrinks and atmosphere grows large and cools ...
... Red giant star that expands and cools once it loses all its hydrogen Center shrinks and atmosphere grows large and cools ...
un Facts About Venus F
... and b righter during the month of Januar y. A rare event, a total solar eclipse visible from the United States will be on August 21, 2017. Come to the planetarium to find out where to look for all these c elestial objects. ...
... and b righter during the month of Januar y. A rare event, a total solar eclipse visible from the United States will be on August 21, 2017. Come to the planetarium to find out where to look for all these c elestial objects. ...
The Lives of Stars
... • astronomers think the sun is about 4.6 billion years old, so it is almost halfway through its lifetime ...
... • astronomers think the sun is about 4.6 billion years old, so it is almost halfway through its lifetime ...
Astronomy - Shelbyville Central Schools
... Neutron star – only neutrons can exist in the dense core Black hole – gravity is so strong that nothing can escape, not even light ...
... Neutron star – only neutrons can exist in the dense core Black hole – gravity is so strong that nothing can escape, not even light ...
Patterns in the Sky - Plano Independent School District
... There are many stars being formed in this cloud. ...
... There are many stars being formed in this cloud. ...
Life Cycle of Stars
... • Once the gas and dust blow away, the star can be seen • All stars (low and high mass) start out here ...
... • Once the gas and dust blow away, the star can be seen • All stars (low and high mass) start out here ...
From the Everett and Seattle Astronomical
... There are several types of nebulae. Emission nebulae are clouds of high temperature gas. The atoms in the cloud are energized by ultraviolet light from a nearby star and emit radiation as they fall back into lower energy states. Emission nebulae are sites of recent and ongoing star formation. The Or ...
... There are several types of nebulae. Emission nebulae are clouds of high temperature gas. The atoms in the cloud are energized by ultraviolet light from a nearby star and emit radiation as they fall back into lower energy states. Emission nebulae are sites of recent and ongoing star formation. The Or ...
STARS and GALAXIES
... heat and light. • Some stars are very old and the size of planets or moons, and some no longer ...
... heat and light. • Some stars are very old and the size of planets or moons, and some no longer ...
Death of Low Mass Stars 8 Solar Masses or less
... it further. Called Electron Degeneracy • The black dwarf will continue to exist at temps close to absolute zero forever…. ...
... it further. Called Electron Degeneracy • The black dwarf will continue to exist at temps close to absolute zero forever…. ...
Answers Universe Cornell Notes Chapter 8, Sec 2
... and size. Supergiant star, giant star, medium-sized star, white dwarf star, neutron star A star’s color reveals its temperature. Red, yellow - white, blue - white Brightness depends on the star’s size and temperature. It’s brightness as seen from Earth. Apparent brightness is how bright it appears t ...
... and size. Supergiant star, giant star, medium-sized star, white dwarf star, neutron star A star’s color reveals its temperature. Red, yellow - white, blue - white Brightness depends on the star’s size and temperature. It’s brightness as seen from Earth. Apparent brightness is how bright it appears t ...
- ALMA Observatory
... Have you ever pulled a loose thread on your sweater, only to find that it has no end? Astronomers have observed a similar phenomenon in space! Two stars orbit around each other, in what is called a binary ...
... Have you ever pulled a loose thread on your sweater, only to find that it has no end? Astronomers have observed a similar phenomenon in space! Two stars orbit around each other, in what is called a binary ...
00
... The effect is seen only when the smaller star eclipses the larger because the higher temperature exists on the inner faces. Since both the effect of ellipticity and the reflection effect result from the closeness of two stars it is difficult to separate one effect from the other. The proximity gives ...
... The effect is seen only when the smaller star eclipses the larger because the higher temperature exists on the inner faces. Since both the effect of ellipticity and the reflection effect result from the closeness of two stars it is difficult to separate one effect from the other. The proximity gives ...
Lyra
Lyra (/ˈlaɪərə/; Latin for lyre, from Greek λύρα) is a small constellation. It is one of 48 listed by the 2nd century astronomer Ptolemy, and is one of the 88 constellations recognized by the International Astronomical Union. Lyra was often represented on star maps as a vulture or an eagle carrying a lyre, and hence sometimes referred to as Aquila Cadens or Vultur Cadens. Beginning at the north, Lyra is bordered by Draco, Hercules, Vulpecula, and Cygnus. Lyra is visible from the northern hemisphere from spring through autumn, and nearly overhead, in temperate latitudes, during the summer months. From the southern hemisphere, it is visible low in the northern sky during the winter months.The lucida or brightest star—and one of the brightest stars in the sky—is the white main sequence star Vega, a corner of the Summer Triangle. Beta Lyrae is the prototype of a class of stars known as Beta Lyrae variables, binary stars so close to each other that they become egg-shaped and material flows from one to the other. Epsilon Lyrae, known informally as the Double Double, is a complex multiple star system. Lyra also hosts the Ring Nebula, the second-discovered and best-known planetary nebula.