Parallax

The orbit of the Earth around the sun (diameter of 2 AU) is used as the ...

• parsec

• baseline

• parallax

Tags

NGSS.HS-ESS1-4

Position F

• Earth

• moon

• sun

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

Position D

• parallax

• one parsec

• one AU

Tags

NGSS.MS-ESS1-3

Position B

• moon

• Earth in 6 months

• sun

Tags

NGSS.MS-ESS1-1

Position C

• one AU

• one parsec

• one arcsec

A "parsec" (pc) is short for

• partial seconds in light years.

• parallax in continuity.

• a unit of time

• parallax in arc seconds.

Stellar parallax is accurate in determining star distances to within around 100 pc of Earth.

• True

• False

The apparent annual motion of the stars compared to background stars that is really a reflection of the Earth's motion around the Sun is referred to as:

• perigee.

• apogee.

• progression.

• parallax.

Which of the following is but the most reliable method for measuring distances to stars?

• algebraic formulation

• geometric parallel

• trigonometric parallax

• applying Newton's second law

What is the primary scientific principle behind the method of parallax used in astronomy?

• The Doppler Effect

• Trigonometry

• Quantum Mechanics

• Relativity