Slide 1
... DUST AND SCATTERED THROUGHOUT MOST GALAXIES •A familiar example of such as a dust cloud is the Orion Nebula ...
... DUST AND SCATTERED THROUGHOUT MOST GALAXIES •A familiar example of such as a dust cloud is the Orion Nebula ...
11.3.1 Grade 6 Standard 4 Unit Test Astronomy Multiple Choice 1
... 1. Tell students they are going to calculate the distance light travels in one year. To learn how to do that, they will start with some practice problems on the board such as: a. If a car is traveling 60 miles per hour, how far does it travel in 4 hours? b. If a car is traveling 60 miles per hour, h ...
... 1. Tell students they are going to calculate the distance light travels in one year. To learn how to do that, they will start with some practice problems on the board such as: a. If a car is traveling 60 miles per hour, how far does it travel in 4 hours? b. If a car is traveling 60 miles per hour, h ...
c - Fsusd
... 7) A neutron star that appears to produce pulses of radio waves is called a ______. a) quasar b) binary system c) black hole d) pulsar ...
... 7) A neutron star that appears to produce pulses of radio waves is called a ______. a) quasar b) binary system c) black hole d) pulsar ...
AST 1010 Quiz questions
... 1. Sketch the Hubble tuning fork diagram of galaxy types. Include all 5 types of galaxy and show how certain types are subdivided. 2. Briefly explain the Hubble tuning fork diagram that you drew in question 1. 3. We have studied three different methods that astronomers use to measure or estimate the ...
... 1. Sketch the Hubble tuning fork diagram of galaxy types. Include all 5 types of galaxy and show how certain types are subdivided. 2. Briefly explain the Hubble tuning fork diagram that you drew in question 1. 3. We have studied three different methods that astronomers use to measure or estimate the ...
land breeze
... statement about how things work in nature that seems to be true consistently. removal of minerals that have been dissolved in water. simple machine consisting of a bar free to pivot about a fixed point called the fulcrum. organism made up of a fungus and a green alga or a cyanobacterium. tough band ...
... statement about how things work in nature that seems to be true consistently. removal of minerals that have been dissolved in water. simple machine consisting of a bar free to pivot about a fixed point called the fulcrum. organism made up of a fungus and a green alga or a cyanobacterium. tough band ...
Supporting material for Lecture 2
... object (or reflected light for non-luminous objects like asteroids); it is the object's apparent magnitude as seen from a certain location. For stars it is 10 parsecs (32.6 light years). ...
... object (or reflected light for non-luminous objects like asteroids); it is the object's apparent magnitude as seen from a certain location. For stars it is 10 parsecs (32.6 light years). ...
Astronomy Study Guide #2
... 05. What two parameters does the brightness of a star depend on? 06. What is the stellar spectral classification sequence? 07. What do studies of binary stars help us learn? 08. Solar granulation is evidence for what aspect of energy transport? 09. In traveling from the center of the sun to the top ...
... 05. What two parameters does the brightness of a star depend on? 06. What is the stellar spectral classification sequence? 07. What do studies of binary stars help us learn? 08. Solar granulation is evidence for what aspect of energy transport? 09. In traveling from the center of the sun to the top ...
Volcanoes and Igneous Activity Earth
... Binary Stars and Stellar Mass • A binary star is one of two stars revolving around a common center of mass under their mutual gravitational attraction. • Binary stars are used to determine the star property most difficult to calculate—its mass. ...
... Binary Stars and Stellar Mass • A binary star is one of two stars revolving around a common center of mass under their mutual gravitational attraction. • Binary stars are used to determine the star property most difficult to calculate—its mass. ...
Star and Galaxies
... Binary Stars and Stellar Mass • A binary star is one of two stars revolving around a common center of mass under their mutual gravitational attraction. • Binary stars are used to determine the star property most difficult to calculate—its mass. ...
... Binary Stars and Stellar Mass • A binary star is one of two stars revolving around a common center of mass under their mutual gravitational attraction. • Binary stars are used to determine the star property most difficult to calculate—its mass. ...
Microsoft Power Point version
... times the luminosity of the sun. Its spectral type is A2, which means its temp is about 10,000 Kelvin (remember the sun;s temp is 5800 kelvin). ...
... times the luminosity of the sun. Its spectral type is A2, which means its temp is about 10,000 Kelvin (remember the sun;s temp is 5800 kelvin). ...
Chapter 1
... such was the difficulty in making the measurements. Indeed, even by 1900 fewer than one hundred stellar distance measurements had been obtained. But in 1903 Frank Schlesinger introduced the technique of photography to parallax measurement, enabling the method to be extended to estimating the distance ...
... such was the difficulty in making the measurements. Indeed, even by 1900 fewer than one hundred stellar distance measurements had been obtained. But in 1903 Frank Schlesinger introduced the technique of photography to parallax measurement, enabling the method to be extended to estimating the distance ...
The Sun - Center for Astrophysics and Space Astronomy
... Light Travels at 300,000km/s (186,000miles/s = 3x108m/s) That’s one foot per nanosecond One Year is 3.15x107 seconds long In one year light travels 3.15x107x3x108 = 1016m This is the definition of a light year. Prox Cen is at 4ly. ...
... Light Travels at 300,000km/s (186,000miles/s = 3x108m/s) That’s one foot per nanosecond One Year is 3.15x107 seconds long In one year light travels 3.15x107x3x108 = 1016m This is the definition of a light year. Prox Cen is at 4ly. ...
UNIVERSITY OF BRISTOL
... How do the Hertzsprung-Russell diagrams of simple stellar populations (with all their stars formed at the same epoch) vary as the system ages? How is this reflected in the overall photometric properties of the system? (b) A globular cluster has a mass of 106 solar masses and a mass-to-light ratio of ...
... How do the Hertzsprung-Russell diagrams of simple stellar populations (with all their stars formed at the same epoch) vary as the system ages? How is this reflected in the overall photometric properties of the system? (b) A globular cluster has a mass of 106 solar masses and a mass-to-light ratio of ...
Notes Chapter 20 - Universe and Stars
... gravitational force. Larger objects have more gravitational pull compared to smaller objects. Smaller objects that are close enough to a larger object will ORBIT the larger object. ...
... gravitational force. Larger objects have more gravitational pull compared to smaller objects. Smaller objects that are close enough to a larger object will ORBIT the larger object. ...
Astrophysics E1. This question is about stars.
... the outer layers undergo a periodic expansion and contraction/periodic fluctuations in temperature; ...
... the outer layers undergo a periodic expansion and contraction/periodic fluctuations in temperature; ...
Untitled - New Zealand Science Teacher
... Centaur, with bow, is outlined at left. It was only in the 17th Century that Crux was split off as a separate constellation. The slow wobble of Earth's axis allowed this part of the sky to be seen from more northerly places in ancient times. The fainter Pointer and the three bluish-white stars of th ...
... Centaur, with bow, is outlined at left. It was only in the 17th Century that Crux was split off as a separate constellation. The slow wobble of Earth's axis allowed this part of the sky to be seen from more northerly places in ancient times. The fainter Pointer and the three bluish-white stars of th ...
1 - Uplift North Hills Prep
... (e) State the reason for the periodic variation in luminosity of a Cepheid variable. ● the outer layers undergo a periodic expansion and contraction/periodic fluctuations in temperature; ...
... (e) State the reason for the periodic variation in luminosity of a Cepheid variable. ● the outer layers undergo a periodic expansion and contraction/periodic fluctuations in temperature; ...
Document
... (e) State the reason for the periodic variation in luminosity of a Cepheid variable. ● the outer layers undergo a periodic expansion and contraction/periodic fluctuations in temperature; ...
... (e) State the reason for the periodic variation in luminosity of a Cepheid variable. ● the outer layers undergo a periodic expansion and contraction/periodic fluctuations in temperature; ...
Chapter 8: Stars
... • The combination of their ideas is now called the Hertzsprung-Russell Diagram, or HR Diagram. • The HR Diagram is a graph that shows the relationship between a stars’ surface temperature and its absolute magnitude. • The modern HR Diagram is shown below. ...
... • The combination of their ideas is now called the Hertzsprung-Russell Diagram, or HR Diagram. • The HR Diagram is a graph that shows the relationship between a stars’ surface temperature and its absolute magnitude. • The modern HR Diagram is shown below. ...
Wien`s law - Uplift Education
... white dwarf compared to a main sequence star: • has smaller radius • more dense • higher surface temperature • energy not produced by nuclear fusion ...
... white dwarf compared to a main sequence star: • has smaller radius • more dense • higher surface temperature • energy not produced by nuclear fusion ...
Mathematics (P)review
... Light-year (LY): the distance light travels in a year (9.5 trillion km) - nearest star is Proxima Centauri @ 4.3 LY - “solar neighborhood” ~ few thousand LY - diameter of our Galaxy ~ 100,000 LY - nearest major galaxy (M31) ~ 3 Million LY - “diameter” of observable universe ~ 93 Billion LY On small ...
... Light-year (LY): the distance light travels in a year (9.5 trillion km) - nearest star is Proxima Centauri @ 4.3 LY - “solar neighborhood” ~ few thousand LY - diameter of our Galaxy ~ 100,000 LY - nearest major galaxy (M31) ~ 3 Million LY - “diameter” of observable universe ~ 93 Billion LY On small ...
(as Main Sequence Stars)?
... Luminosity = (energy radiated per cm2 per sec) x (area of surface in cm2) So: Luminosity (temperature) 4 x (surface area) Determine luminosity from apparent brightness and distance, determine temperature from spectrum (black-body curve or spectral lines), then find surface area, then find radius ( ...
... Luminosity = (energy radiated per cm2 per sec) x (area of surface in cm2) So: Luminosity (temperature) 4 x (surface area) Determine luminosity from apparent brightness and distance, determine temperature from spectrum (black-body curve or spectral lines), then find surface area, then find radius ( ...
January
... Except for the probes that have been sent to the planets, astronomers cannot reach out and touch their experiment, which is the universe itself. One of the key measurements in Astronomy is distance. To measure distances, the astronomer must rely on the light from any object. Distances are then deter ...
... Except for the probes that have been sent to the planets, astronomers cannot reach out and touch their experiment, which is the universe itself. One of the key measurements in Astronomy is distance. To measure distances, the astronomer must rely on the light from any object. Distances are then deter ...
Cosmic distance ladder
The cosmic distance ladder (also known as the extragalactic distance scale) is the succession of methods by which astronomers determine the distances to celestial objects. A real direct distance measurement of an astronomical object is possible only for those objects that are ""close enough"" (within about a thousand parsecs) to Earth. The techniques for determining distances to more distant objects are all based on various measured correlations between methods that work at close distances and methods that work at larger distances. Several methods rely on a standard candle, which is an astronomical object that has a known luminosity.The ladder analogy arises because no one technique can measure distances at all ranges encountered in astronomy. Instead, one method can be used to measure nearby distances, a second can be used to measure nearby to intermediate distances, and so on. Each rung of the ladder provides information that can be used to determine the distances at the next higher rung.