Was kann man von offenen Sternhaufen lernen?
... groups of stars held together by mutual gravitational attraction. The number of all star clusters in the Milky Way is about 10 000 but only 3000 in catalogues. From these, about 170 Globular Clusters (“old”). ...
... groups of stars held together by mutual gravitational attraction. The number of all star clusters in the Milky Way is about 10 000 but only 3000 in catalogues. From these, about 170 Globular Clusters (“old”). ...
Notes: 3.5 STAR EVOLUTION Name: ______ Star
... Ø All stars change into different STAGES or phases throughout their quiz questions life. using this Ø What a star ends as depends on its MASS. information. Write Ø A low mass star will evolve DIFFERENTLY than a high mass star. the questions next to the paragraph where the answers can be found. ...
... Ø All stars change into different STAGES or phases throughout their quiz questions life. using this Ø What a star ends as depends on its MASS. information. Write Ø A low mass star will evolve DIFFERENTLY than a high mass star. the questions next to the paragraph where the answers can be found. ...
MAUI STARGAZING MAY OBSERVING LIST DEEP SPACE
... FIRST MAGNITUDE STARS - First magnitude stars are the 20 brightest stars visible in the night sky from Planet Earth. Hipparchos, introduced the magnitude scale in the 1st century B.C.. ASTERISMS - An asterism is an informal pattern of stars recognized in the Earth's night sky. It may be part of an o ...
... FIRST MAGNITUDE STARS - First magnitude stars are the 20 brightest stars visible in the night sky from Planet Earth. Hipparchos, introduced the magnitude scale in the 1st century B.C.. ASTERISMS - An asterism is an informal pattern of stars recognized in the Earth's night sky. It may be part of an o ...
Making H-R Diagrams - PLC-METS
... Making an H-R Diagram BACKGOUND INFORMATION: Stars in the sky are not created equal and are composed of different materials, different temperatures, different brightness, different sizes, and different distances from Earth. A star’s mass dictates how bright it will be, how long it will live, its tem ...
... Making an H-R Diagram BACKGOUND INFORMATION: Stars in the sky are not created equal and are composed of different materials, different temperatures, different brightness, different sizes, and different distances from Earth. A star’s mass dictates how bright it will be, how long it will live, its tem ...
The Fates of Stars Mass-Luminosity Relation: Lifetime Relation:
... The following table lists data on several bright main-sequence stars: Example star Meissa ...
... The following table lists data on several bright main-sequence stars: Example star Meissa ...
source
... The following table lists data on several bright main-sequence stars: Example star Meissa ...
... The following table lists data on several bright main-sequence stars: Example star Meissa ...
Chapter 18 Study Guide
... Red 8. What type of star has a high temperature but a low luminosity? (use H-R Diagram to determine) White dwarf 9. What type of star has a low temperature but a high luminosity? (use H-R Diagram to determine) Red supergiant 10. According to the Hertzsprung-Russell diagram, what relationship exist b ...
... Red 8. What type of star has a high temperature but a low luminosity? (use H-R Diagram to determine) White dwarf 9. What type of star has a low temperature but a high luminosity? (use H-R Diagram to determine) Red supergiant 10. According to the Hertzsprung-Russell diagram, what relationship exist b ...
characteristics of stars
... GALAXY - a huge collection of gas, dust and hundreds of billions of stars. These stars are attracted to each other by the force of ______________, and they are constantly in ______________. We are part of the ___________ _________ Galaxy. ...
... GALAXY - a huge collection of gas, dust and hundreds of billions of stars. These stars are attracted to each other by the force of ______________, and they are constantly in ______________. We are part of the ___________ _________ Galaxy. ...
Astro 2 - Red Hook Central School District
... • Binary – 2 stars appear close. Most bound together by grav. • Cepheid – varies in brightness on regular cycle of days – changing size. • Red Giant – Old star. H burning is over. Low surface T. High L, lg area. • Supergiant – very heavy star fuses elements beyond carbon. • White dwarf – solar mass ...
... • Binary – 2 stars appear close. Most bound together by grav. • Cepheid – varies in brightness on regular cycle of days – changing size. • Red Giant – Old star. H burning is over. Low surface T. High L, lg area. • Supergiant – very heavy star fuses elements beyond carbon. • White dwarf – solar mass ...
Quantum Well Electron Gain Structures and Infrared
... star is dominant source of ionizing radiation • Thus, even if it is a binary, probable q>1 and mass limit >> 75 M0 • (And … something BIGGER made a neutron star ...
... star is dominant source of ionizing radiation • Thus, even if it is a binary, probable q>1 and mass limit >> 75 M0 • (And … something BIGGER made a neutron star ...
Finding Your Way In The Sky
... South is toward the South Celestial Pole East is toward East on the ground (usually) West is toward West on the ground (usually) On a ground map you’re outside a sphere looking in. • On sky maps you’re inside a sphere looking out. • East and West on star maps are reversed compared to maps of the gro ...
... South is toward the South Celestial Pole East is toward East on the ground (usually) West is toward West on the ground (usually) On a ground map you’re outside a sphere looking in. • On sky maps you’re inside a sphere looking out. • East and West on star maps are reversed compared to maps of the gro ...
Stars and Their Characteristics
... • Constellation- groups of stars that appear to form patterns – 88 constellations can be seen from n. and s. hemispheres – So far away that only after thousands of years might the motions be observed – Big Dipper- asterism (small-star grouping) • Part of Ursa Major- Great Bear ...
... • Constellation- groups of stars that appear to form patterns – 88 constellations can be seen from n. and s. hemispheres – So far away that only after thousands of years might the motions be observed – Big Dipper- asterism (small-star grouping) • Part of Ursa Major- Great Bear ...
Life cycle of a star
... When the helium core runs out, and the outer layers drift of away from the core as a gaseous shell, this gas that surrounds the core is called a ...
... When the helium core runs out, and the outer layers drift of away from the core as a gaseous shell, this gas that surrounds the core is called a ...
File
... OBJECTIVE: Compare a stars color, temperature, brightness, and size to its spectral class. PURPOSE: Plot stars according to brightness and temperature to create an HR diagram. PROCEDURES: 1. Study the star data table on the back. 2. The sun, used as a standard brightness, is given a value of 1. The ...
... OBJECTIVE: Compare a stars color, temperature, brightness, and size to its spectral class. PURPOSE: Plot stars according to brightness and temperature to create an HR diagram. PROCEDURES: 1. Study the star data table on the back. 2. The sun, used as a standard brightness, is given a value of 1. The ...
CH27.2 Stellar Evolution
... been fused to helium. The core of the star contracts causing higher temperatures and the helium to be fused into carbon atoms. ...
... been fused to helium. The core of the star contracts causing higher temperatures and the helium to be fused into carbon atoms. ...
Apparent Magnitude
... off 1000 times more light than Rigel!! SO..If Spica is giving off more light, why would it appear dimmer in the sky here at Earth? ...
... off 1000 times more light than Rigel!! SO..If Spica is giving off more light, why would it appear dimmer in the sky here at Earth? ...
Stars and Universe Test Review - Garnet Valley School District
... produced from a distant star. Which conclusion can be made by comparing the standard spectrum to the spectrum produced from this distant star? A. The star’s spectral lines have shifted toward the ultraviolet end of the spectrum and the star is moving toward Earth. B. The star’s spectral lines have s ...
... produced from a distant star. Which conclusion can be made by comparing the standard spectrum to the spectrum produced from this distant star? A. The star’s spectral lines have shifted toward the ultraviolet end of the spectrum and the star is moving toward Earth. B. The star’s spectral lines have s ...
Constellations
... interpretation of stars and planets based on the premise that there is a relationship between astronomical phenomena and events in the human world. ...
... interpretation of stars and planets based on the premise that there is a relationship between astronomical phenomena and events in the human world. ...
HR Diagram
... 4. How many of the stars in table 10.1 are hotter than the Sun (spectral classes O,B,A,F)? If double star both must be considered. # = __________ How many of the stars in table 10.2 are hotter than the Sun (spectral classes O,B,A,F)? If double star both must be considered. # = __________ ...
... 4. How many of the stars in table 10.1 are hotter than the Sun (spectral classes O,B,A,F)? If double star both must be considered. # = __________ How many of the stars in table 10.2 are hotter than the Sun (spectral classes O,B,A,F)? If double star both must be considered. # = __________ ...
Perseus (constellation)
Perseus, named after the Greek mythological hero Perseus, is a constellation in the northern sky. It was one of 48 listed by the 2nd-century astronomer Ptolemy and among the 88 modern constellations defined by the International Astronomical Union (IAU). It is located in the northern celestial hemisphere near several other constellations named after legends surrounding Perseus, including Andromeda to the west and Cassiopeia to the north. Perseus is also bordered by Aries and Taurus to the south, Auriga to the east, Camelopardalis to the north, and Triangulum to the west.The galactic plane of the Milky Way passes through Perseus but is mostly obscured by molecular clouds. The constellation's brightest star is the yellow-white supergiant Alpha Persei (also called Mirfak), which shines at magnitude 1.79. It and many of the surrounding stars are members of an open cluster known as the Alpha Persei Cluster. The best-known star, however, is Algol (Beta Persei), linked with ominous legends because of its variability, which is noticeable to the naked eye. Rather than being an intrinsically variable star, it is an eclipsing binary. Other notable star systems in Perseus include X Persei, a binary system containing a neutron star, and GK Persei, a nova that peaked at magnitude 0.2 in 1901. The Double Cluster, comprising two open clusters quite near each other in the sky, was known to the ancient Chinese. The constellation gives its name to the Perseus Cluster (Abell 426), a massive galaxy cluster located 250 million light-years from Earth. It hosts the radiant of the annual Perseids meteor shower—one of the most prominent meteor showers in the sky.