• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Exploring Stars - Discovery Education
Exploring Stars - Discovery Education

... researched; each group should have at least one person who made a flipbook for a small star, one who made a flipbook for a medium star, and one student who made a flipbook for a large star. Have them share their flipbooks with one another and ask them to describe the life cycle of the star in their ...
Student Handout - Mr. vallee`s Class Site
Student Handout - Mr. vallee`s Class Site

... Betelgeuse is so luminant, that you can see its __________ color without a telescope. Other bright stars make up the two arms, one which holds a _________, and another that carries a ________. 23. Many different civilizations saw this constellation in the sky. The most famous stories come from _____ ...
Diapositiva 1
Diapositiva 1

... nearest star to the Sun is 1.3 pc away! ...
Stellar Spire in the Eagle Nebula
Stellar Spire in the Eagle Nebula

... gas that reside in chaotic neighborhoods, where energy from newborn stars sculpts fantasy-like landscapes in the gas. The tower is a giant incubator for these newborn stars. A torrent of ultraviolet light from a band of massive, hot, young stars [off the top of the image] is eroding the pillar. The ...
SAMPLE THIRD MIDTERM
SAMPLE THIRD MIDTERM

... 48. Now that you know the luminosity of this star, how do you use this information to find its distance? a) compare the luminosity with the color of the star b) ignore the luminosity and find the mass of the star c) compare the luminosity with the apparent brightness of the star ...
August 2015 - Shasta Astronomy Club
August 2015 - Shasta Astronomy Club

... such dense galaxies can form with a supermassive black hole at their core. Looking up from a planet embedded inside one of the newfound galaxies, an observer would see more than a million stars at once, compared to the few thousand stars visible in Earth’s night ...
H-R Diagram
H-R Diagram

... After the supernova blast blows off the outer layers of the star, all that is left is the central core. The core now contains a mass between 1.4 and 3.0 times the sun's mass but condensed into a volume 10- to 20km across - roughly the size of a small town on Earth. The matter in a neutron star would ...
Types of Stars http://space.about.com/od/stars/tp/What-Are
Types of Stars http://space.about.com/od/stars/tp/What-Are

Lec9_2D
Lec9_2D

... • In the area surrounding the core, there is plenty of hydrogen. The pressure in this area increases (since contraction increases the gravity), and hydrogen begins to fuse. This shell burning also produces energy. Since the star now has two sources of energy, it becomes extremely bright. • The energ ...
The Sky - HiSPARC
The Sky - HiSPARC

... At roughly the same time Charles Messier was also taking a closer look at the skies. He made the now famous list of 110 Messier objects.4 Messier was a comet hunter, he became frustrated by objects strongly resembling comets but which were in fact not comets. In modern catalogues the original Messie ...
Theoretical Problem 3
Theoretical Problem 3

... 5. The mass and radius of the smallest star. The result found in (4a) suggests that there could be stars of any mass as long as such a relationship is fulfilled; however, this is not true. The gas inside normal stars fusing hydrogen is known to behave approximately as an ideal gas. This means that d ...
Unit 1
Unit 1

... the star collapses a little, raising the temperature ...
Nebula Beginnings - University of Dayton
Nebula Beginnings - University of Dayton

... titanic supernova explosions scatter this material back into space where it is used to create new generations of stars. This is the mechanism by which the gas and dust that formed our solar system became enriched with the elements that sustain life on this planet. Hubble spectroscopic observations w ...
- Lowell Observatory
- Lowell Observatory

Star Types - College of Engineering and Computer Science
Star Types - College of Engineering and Computer Science

... As hydrogen in the core is being used up, it starts to contract, raising temperature in the surrounding. Eventually, hydrogen will burn only in a shell. There is less gravity from above to balance this pressure. The Sun will then swell to enormous size and luminosity, and its surface temperature wil ...
Chapter 20 Notes (smaller PDF file)
Chapter 20 Notes (smaller PDF file)

... 2. Where did the carbon atoms in our bodies come from? 3. What is a planetary nebula, and what does it have to do with planets? 4. What is a white dwarf star? 5. Why do high-mass stars go through more evolutionary stages than low-mass stars? 6. What happens within a high-mass star to turn it into a ...
large PDF file
large PDF file

... • The luminosity of the star increases suddenly by a factor of around 108 during this explosion, producing a supernova • The matter ejected from the supernova, moving at supersonic speeds through interstellar gases and dust, glows as a nebula called a supernova ...
GEARS Workshop Monday - Georgia Southern University
GEARS Workshop Monday - Georgia Southern University

... our own Sun, have found a remarkable object where the nuclear reactor that once powered it has only just shut down. This star, the hottest known white dwarf, H1504+65, seems to have been stripped of its entire outer regions during its death throes leaving behind the core that formed its power plant. ...
Full 11x8.5" Calendar, High Resolution - Chandra X
Full 11x8.5" Calendar, High Resolution - Chandra X

... This new version of NASA’s Chandra X-ray Observatory’s image of the Cassiopeia A supernova remnant has been specially processed to show with better clarity the appearance of Cas A in different bands of X-rays. This will aid astronomers in their efforts to reconstruct details of the supernova process ...
AST 207 Test 2 26 October 2011
AST 207 Test 2 26 October 2011

... 6. Astronomers have been measuring the speed of star X. They find that its speed changes periodically just as that of 51 Peg does. The period is 4day 5hr, which is the same as that of 51 Peg. The maximum speed is 60km/s, whereas the maximum for 51 Peg is 60m/s. In both cases, the visible star and so ...
What is a Hertzsprung
What is a Hertzsprung

... Figure 8.9: Differences in widths and strengths of spectral lines distinguish the spectra of supergiants, giants, and main-sequence stars. (Adapted from H. A. Abt, A. B. Meinel, W. W. Morgan, and J. W. Tapscott, An Atlas of ...
STAR UNIT FLASH BACKS
STAR UNIT FLASH BACKS

... behavior. Despite what most people may think, mice are actually very clean animals that organize their habitat into areas for eating, sleeping, bathroom needs, etc. ...
Stages - A Summary - University of Dayton
Stages - A Summary - University of Dayton

... outward luminosity and inward gravity. Our star has reached the Zero Age Main Sequence, where it will stay for over 90% of its life, virtually unchanged externally. [Note : Stars of different masses experience similar evolutionary tracks on the H-R Diagram, but end up at different points on the ZAMS ...
November 2013 - Pomona Valley Amateur Astronomers
November 2013 - Pomona Valley Amateur Astronomers

... Lee Collins followed with his “What's Up” segment on Novas and Supernovas. Tycho Brahe saw a supernova that was brighter than Venus in 1572. Thirty-two years later Johannes Kepler observed another supernova. While actually observing a nova or supernova occurring in our galaxy is very rare, we can ob ...
Distance, Size, and Temperature of a Star
Distance, Size, and Temperature of a Star

< 1 ... 155 156 157 158 159 160 161 162 163 ... 291 >

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.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report