Astronomy Unit

What is the angle of earth's tilt on its axis?

• 35.3
• 23.5
• 32.5
• 25.3

The reason why distant objects tend to shift in location when observed at a different location is known as

• parsec
• triangulation
• parallax
• ecliptic

When it is a summer day in the US, it is a ____ night in China

• summer day
• summer night
• winter day
• winter night

The Earth's orbital plane is called the

• celestial sphere
• parallax
• ecliptic
• declination

Equinox means

• longest
• shortest
• unequal
• equal

How long is one complete moon cycle?

• 28 days
• 30 days
• 1 year
• 45 days

• solar eclipse
• lunar eclipse
• celestial sphere

• solar eclipse
• lunar eclipse

During which season is the sun the lowest in the sky?

• summer
• fall
• winter
• spring

The central region of the shadow cast by an eclipsing body is 

• solar eclipse
• lunar eclipse
• umbra
• penumbrae