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... contracts, while the outer shell starts to expand. ...
Star Questions 2008 - Fort Thomas Independent Schools
Star Questions 2008 - Fort Thomas Independent Schools

... 12. Which is more luminous, a low-mass or a high-mass star? Explain. High mass stars are larger, so they emit more electromagnetic radiation or energy. 13. What is a neutron star? ...
Lecture 12
Lecture 12

... • How do we measure stellar luminosities? • How do we measure stellar temperatures? • How do we measure stellar masses? ...
types of stars, luminosity, and brightness
types of stars, luminosity, and brightness

... intrinsic energy per sec that a star radiates and does not depend on our distance from the star. 7. Stars are classified by temperature and luminosity. 8. Supergiants are the most luminous and white dwarfs are the least luminous. 9. The main characteristic of main sequence stars is that they have hy ...
lecture23
lecture23

... All stars in a cluster are of about the same age. Clusters therefore are natural laboratory in which mass, rather than age, of stars is only significant variable. ...
Stars - winterk
Stars - winterk

... Supernovas • In 1987, Canadian astronomer Ian Shelton discovered one while working at an observatory in Chile • His discovery was by accident! • He was looking at images of stars when he noticed something unusual: one star looked MUCH brighter than the others • Named it SN 1987A and it is 163 000 l ...
Laboratory Procedure (Word Format)
Laboratory Procedure (Word Format)

... sure to labe directions as well as date and time. CONSTELLATIONS OF THE FALL: Turn to face the southern horizon and the region of the sky overhead. You should find three bright stars that form the apexes of a large right triangle. The brightest of the three is Vega (in Lyra), which is farthest west ...
Astronomy
Astronomy

... heavens while the other constellations are allowed to dip below the horizon and bathe in the immortal waters every night. ...
Session: [B5B-3] S3 : Stars, Exoplanets and Stellar Systems Date
Session: [B5B-3] S3 : Stars, Exoplanets and Stellar Systems Date

Life Cycle of Stars
Life Cycle of Stars

... – Very large, massive stars burn their fuel much faster than smaller stars – Their main sequence may last only a few hundred thousand years – Smaller stars will live on for billions of years because they burn their fuel much more slowly ...
Starry Night¨ Times - October 2008
Starry Night¨ Times - October 2008

... to be sometimes visible to the naked eye (Aristotle is said to have noticed it around 325 B.C.) M41 is a good target for binos or low magnification in your scope. M46 and M47 are two open clusters just over 1° apart, making comparison very easy. Both are about 20 million years old but they're not co ...
Chapter 15 (Star Lives)
Chapter 15 (Star Lives)

... 5. Which of these is NOT a major difference between the evolution of a one and a five solar mass star? A. The more massive star has a shorter lifetime. B. The more massive star fuses hydrogen by the CNO cycle on the main sequence. C. The less massive star produces helium by fusing four hydrogens ato ...
Slide 1
Slide 1

Star Gazing
Star Gazing

... region to the right of the sun (spring sunset). Use fist method (arm outstretched) to measure 30o (3 fist lengths) to the right/north of sunset now. • Specific directions on website for what you need to write down. • Turn in the picture with details listed in the ...
2-2 wkst - Home [www.petoskeyschools.org]
2-2 wkst - Home [www.petoskeyschools.org]

... ____________ 22. small hot stars that are dimmer than the sun ____________ 23. high-temperature stars that quickly use up their hydrogen ____________ 24. cool stars with high absolute magnitude ...
8.3 Stars
8.3 Stars

... nuclear energy is gone, I begin to contract and appear very ...
Formation of Stars - mcp
Formation of Stars - mcp

... There are 7 different classes of stars 1. O – Hottest stars (30 – 60,000 K), typically blue in color and very large 2. B – Blue – white in color 3. A – White in color 4. F – Yellow-white color 5. G – Yellow in color, our sun is a G-class star (5-6000 K) 6. K – Yellow - Orange 7. M – Coolest stars (> ...
of the star. - Colyton High School
of the star. - Colyton High School

... XII. Click on the Yellow Right Arrow or go back and click on The Hertzsprung-Russel (H-R) Diagram Introduction section only. Read this entire page. You may go to the other sections if you have time. An H-R diagram shows a wide array of stars plotted on a graph showing absolute magnitude (or luminosi ...
eneb_form
eneb_form

... the light coming from the Sun. The tail has to always point away from the Sun, regardless of how the comet moving. ...
SNC1PL The Life Cycle of Stars
SNC1PL The Life Cycle of Stars

... Small sized stars also convert most of their hydrogen fuel to helium at some point in their life. • Since small stars don’t have as much mass, they do not produce the conditions to reignite nuclear fusion. • The hot core remains and the outer layers simply drift away • When the white dwarf star cool ...
Temperature
Temperature

... Spectral Types • The types of spectra were originally classified only by hydrogen absorption, labeled A, B, C, …, P. • Eventually arranged by temperature. – O, B, A, F, G, K, M – Our Brother Andy Found Green Killer Martians ...
Chapter 25 - Notes Super Size
Chapter 25 - Notes Super Size

... Stars & Galaxies Stars Constellations • _________________ of stars representing mythological characters, animals, or familiar objects. • Most constellations come from the _________________. • The stars in a constellation may appear close, however each star can be _________________ of light-years awa ...
OUSNMAR05 - The Open University
OUSNMAR05 - The Open University

... orientation of the map may differ from that of the observed image of the Moon depending on the type of telescope used. If you find the Moon too bright use a filter to reduce the glare. At times features along different parts of the limb are better presented due the effect of libration – an apparent ...
White Dwarf Stars Near The Earth
White Dwarf Stars Near The Earth

Review Quiz No. 22
Review Quiz No. 22

... is located as distances of less than 100 pc from us. is located in galaxies other than the Milky Way. does not belong to a particular galaxy at all. ...
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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.
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