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Where are 90 percent of stars on hr diagram?
main-sequence stars
What is two thirds of one and one half hour?
2/3 x 1.5 hr = (2 x 1.5 hr) / 3 = 3 hr / 3 = 1 hr
While traveling at uniform speed U read a two digit no after one hr the number is reversed order After another hour the number read is same two digit number What is the average speed?
45km/hr
What is 5.25 miles per hour in kilometers per hour?
8.44 kph Algebraic Steps / Dimensional Analysis Formula5.25 mi/hr*5280 ft/hr 1 mi/hr*1 m/hr 3.2808 ft/hr*1 km/hr 1000 m/hr=8.449055999 km/hr Direct Conversion Formula 5.25 mi/hr*1.609344 km/hr 1 mi/hr=8.449055999 km/hr
What is 76 km per hour in miles per hour?
47.22421061 mi/hr. See complete algebraic steps below: 76 km/hr*1 m/hr 0.001 km/hr*1 ft/hr 0.3048 m/hr*1 mi/hr 5280 ft/hr=47.22421061 mi/hr
Where are most stars plotted on an HR diagram?
Most stars are plotted along the main sequence in the Hertzsprung-Russell (HR) diagram, which extends diagonally from the upper left (hot and luminous stars) to the lower right (cool and less luminous stars). This is because the majority of stars, including our Sun, spend the majority of their lives in the main sequence phase where they are fusing hydrogen into helium.
What two factors determine how bright a star looks from earth?
The two factors that determine how bright a star looks from Earth are its intrinsic luminosity (actual brightness) and its distance from Earth. Stars that are more luminous and closer to Earth will appear brighter in the night sky.
What are the colors of the HR Diagram?
The HR Diagram depicts the relationship between a star's luminosity (brightness) and temperature. Stars appear in different colors on the diagram, ranging from hot blue stars to cool red stars. The main sequence runs from hot, blue stars in the upper left to cool, red stars in the lower right.
Where are stars on the hr diagram?
The HR diagram contains only stars - so everywhere.
Why is there no neurton stars in the hr diagram?
Of course they are on the HR diagram. They are simply not on the main sequence.
What is the brightest star on the Hr diagram?
The brightest stars on the Hertzsprung-Russell (HR) diagram are typically found in the top-left corner, known as the "upper main sequence." These stars are massive and luminous, such as blue supergiants or O-type stars. They have high temperatures and emit large amounts of energy.
What are the two ways you can classify stars?
The two ways are by their surface temperature (spectrum) and by their absolute magnitude (intrinsic brightness). The HR diagram has spectrum along the horizontal axis and absolute magnitude along the vertical axis. Each star occupies a point in the HR diagram.
What chart show is the characteristics of a star?
HR diagram
What are the smallest stars in the HR diagram?
The red dwarves.
What part of the HR diagram are Red supergiant stars in?
Up at the top right. If you look on the Australian Telescope National facility website, their HR diagram shows this clearly.
Why is the hr diagram important to scientist?
The Hertzsprung-Russell diagram helps scientists understand the life cycle of stars by showing the relationship between a star's luminosity and temperature. It enables astronomers to classify stars based on their evolutionary stage and predict their future evolution. This diagram is essential for studying the properties and behavior of stars within galaxies.
What two star characteristics does Hertzsprung Russell diagram compare?
The HR Diagram compares the relationship between the stars' absolute magnitudes or luminosities versus their spectral types or classifications and effective temperatures.
