Space Science - Lesson Review
Why is the absolute magnitude of some stars greater than their apparent magnitude?
Apparent magnitude is from what we see on Earth, and Absolute magnitude is the brightness of the star a certain distance away.
Mizar is a star system that is composed of of two pairs of stars, Mizar A and Mizar B, or four stars in total. What to astronomers call a system that is composed of mored than two stars?
A multiple star system.
A star has a size of 0.1 solar radius. How many times larger is the sun than this star?
10 times larger than the star.
How does the size of the sun compare to the size of other stars?
Average size.
LUMINOSITY
The actual brightness of a star.
STAR
A star is a large celestial body made of gas that emits heat and light.
Which stars have the highest surface temperatures, red or blue stars?
Blue.
What are some of the physical properties of stars?
Temperature, Color, Size, Magnitude
APPARENT MAGITUDE
The brightness of a star as seen from Earth.
The sun has a surface temperature of approximately 5,527 degrees Celsius. What is the color of the sun?
Yellow.