... 2. Why are carbonaceous chondritic meteorites thought to be the oldest
pristine material from the inner solar system?
1 - Pitt County Schools
... 3. What factors determine a star’s apparent magnitude?
4. The H-R diagram shows the relationship between what two factors?
Spectral Class and Colour index
... Spectral Class and Colour index
As we have seen the colour of a star is related to its temperature as a consequence of
λmaxT = constant
The spectral class (OBAFGKM) of a main sequence star is also a direct result of its
One (relatively crude) way of determining the temperatu ...
astronomy 2 review sheet - Hicksville Public Schools
... 6. What does the lifetime of a star depend on?
7. What is a supernova?
EXPLOSION OF A HIGH MASS STAR.
8. What is a star system?
A GROUP OF TWO OR MORE STARS.
9. What are eclipsing binary stars?
A STAR SYSTEM WHERE ONE STAR BLOCKS THE LIGHT
OF THE OTHER STAR AT REGULAR INTERVALS.
10. What ...
Physical properties of stars
... Absolute magnitude depends on:
The size of the star
The temperature of the star
Apparent magnitude depends on:
The size of the star
The temperature of the star
The distance of the star
Pg. 444 scale of objects and their
Absolute motion- the actual motion of
stars in spa ...
... than low absolute magnitude
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
and size change. The redgiant phase occurs when
the star begins to run out
of hydrogen. I ...
Study Guide_galaxies, Tools, and Stars Test
... 6. Name and describe the 3 types of galaxies.
7. Where is our solar system located in the Milky Way galaxy?
8. What is a light year?
9. What contains all the matter and energy that exists?
10. Name two types of optical telescopes.
11. What do radio telescopes receive and where do they come from?
Regulus the Star njw
... The star’s name regulus comes from the
Latin word Rex which means King
It is associated with many cultures like the
Greeks , Arabs, and Ancient Babylon
It also is know as one of the four Royal Stars
of the Heavens
Homework, August 29, 2002 AST110-6
... e. Which star has the highest surface temperature?
f. Which star has the lowest surface temperature?
g. Which star is most similar to the Sun?
h. Which star is a red supergiant?
i. Which star has the largest radius?
j. Which stars have finished burning hydrogen in their cores?
k. Among the main-sequ ...
Main Sequence Stars
... The rst classication of stars was suggested by Einar Hertzsprung in
Denmark, and Henry Norris Russell at Princeton University, around 1913.
They plotted the locations of stars on a graph with the horizontal coordinate
being spectral type (equivalent to temperature) and the vertical coordinate
PH507 - University of Kent
... 1. Calculate the luminosity (in units of the solar luminosity) of a blackbody of Saturn’s
radius that has a temperature of 1000 K? Explain the steps you take in the derivation.
The surface temperature of the Sun is 5780 K. The radii of Saturn and the Sun are
6.00 x 107 m and 6.96 x 108 m, respective ...
Astronomy word grid
... 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 very large but cool star
29. He discovered the moons of Jupiter
30. A type of telescope using lenses
35. A ...
Extra Questions Stellar properties
... How many times brighter or dimmer than the Sun is it?
3 Barnard’s star, the star with the largest known proper motion in the skjy
can be seen only with a telescope because its apparent magnitude is +9.54.
Its distance from Earth is 1.81 parsecs. How much closer to Earth would it
have to be in order ...
Apparent magnitude is the brightness of a star as it appears
... Apparent magnitude is the brightness of a star as it appears
from Earth. This brightness depends partly on how far away the
star is. Absolute magnitude describes the actual brightness of
a star without considering its distance from the observer. The
absolute magnitude of stars is measured on a Scale ...
Chapter 27 Review Guide// ESS
... 3. How do astronomers determine a star’s composition and temperature?
4. What are the two types of stellar motion?
a. What causes the stars to “move” westward across the night sky?
b. Why do we see different stars at different times of the year?
Life Cycle of Stars Flipbook Assignment
... 3. Draw pictures of a star from birth to death as it goes from stage to stage.
4. Cut out pages and staple so that it flips in order from birth to death.
1. Gather in groups of 3 (one for each mass type)
2. Share each flip book explaining the stages to the other two
3. Complete the works ...
Corona Borealis /kɵˈroʊnə bɒriˈælɨs/ is a small constellation in the Northern Celestial Hemisphere. It is one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Its brightest stars form a semicircular arc. Its Latin name, inspired by its shape, means ""northern crown"". In classical mythology Corona Borealis generally represented the crown given by the god Dionysus to the Cretan princess Ariadne and set by him in the heavens. Other cultures likened the pattern to a circle of elders, an eagle's nest, a bear's den, or even a smokehole. Ptolemy also listed a southern counterpart, Corona Australis, with a similar pattern. The brightest star is the magnitude 2.2 Alpha Coronae Borealis. The yellow supergiant R Coronae Borealis is the prototype of a rare class of giant stars—the R Coronae Borealis variables—that are extremely hydrogen deficient, and thought to result from the merger of two white dwarfs. T Coronae Borealis, also known as the Blaze Star, is another unusual type of variable star known as a recurrent nova. Normally of magnitude 10, it last flared up to magnitude 2 in 1946. ADS 9731 and Sigma Coronae Borealis are multiple star systems with six and five components respectively. Five star systems have been found to have Jupiter-sized exoplanets. Abell 2065 is a highly concentrated galaxy cluster one billion light-years from our Solar System containing more than 400 members, and is itself part of the larger Corona Borealis Supercluster.