Measuring the Stars

measures how bright a star would be in relation to the sun if all stars were the same distance from the observer

• Brightness

• Luminosity

• Apparent Magnitude

Shows the relationship between luminosity and temperature in a star.

• HR (Hertzsprung - Russell) Diagram

• Color vs. Brightness chart

• Temperature vs. Luminosity chart

• Stellar life cycle chart

A pattern of stars in the sky is called a _____________.

• combination

• star shape

• universe

• constellation

Main Sequence

• Binary Star
• Parsec
• the brightness that a star would have at a distance of 32.6 light-years from Earth
• the location on the H-R diagram where most stars lie

Binary Star

• the location on the H-R diagram where most stars lie
• A group of stars that form a pattern in the sky
• one of two stars revolving around a common center of mass under their mutual gravitational attraction
• Constellation

Parsec

• the brightness of a star as seen from Earth have at a distance of 32.6 light-years from Earth Luminosity The actual brightness of a star
• A unit of distance that is equal to 3.26 light years
• the brightness that a star would have at a distance of 32.6 light-years from Earth
• The actual brightness of a star

Apparent Magnitude

• the brightness of a star as seen from Earth have at a distance of 32.6 light-years from Earth Luminosity The actual brightness of a star

• the brightness that a star would have at a distance of 32.6 light-years from Earth

• the location on the H-R diagram where most stars lie

• the brightness of a star as seen from Earth

Absolute Magnitude

• the brightness that a star would have at a distance of 32.6 light-years from Earth
• The actual brightness of a star
• Parsec
• Constellation

Luminosity

• the brightness of a star as seen from Earth have at a distance of 32.6 light-years from Earth Luminosity The actual brightness of a star
• the brightness that a star would have at a distance of 32.6 light-years from Earth
• The actual brightness of a star
• the location on the H-R diagram where most stars lie

Wavelength

• Luminosity
• the distance between successive crests, especially points in a sound or electromagnetic
• Parsec
• A unit of distance that is equal to 3.26 light years

Tags

NGSS.HS-PS4-1