Celestial Sphere and Celestial Coordinates

What is the standard coordinate system used for star charts?

• Celestial coordinates

• Geographic coordinates

• Universal coordinates

• Astronomical coordinates

What imaginary sphere is centered on the Earth?

• The lunar sphere

• The celestial sphere

• The solar sphere

• The planetary sphere

How long does it take for the Earth to complete one rotation?

• 24 hours

• 23 hours, 56 minutes

• 23 hours, 50 minutes

• 25 hours

Tags

NGSS.MS-ESS1-1

What is the declination of the North Celestial Pole?

• 0 degrees

• 90 degrees

• 45 degrees

• -90 degrees

Which celestial object is near the North Celestial Pole?

• Betelgeuse

• Polaris

• Sirius

• Vega

What is Local Sidereal Time (LST)?

• Time based on the Sun's position

• Time based on the Moon's position

• Time based on stars' positions

• Time based on daylight

Which factor affects the visibility of celestial objects at low elevations?

• Earth's rotation

• Extinction by the Earth's atmosphere

• Light pollution

• Distance from Earth

How does the declination of the Sun change throughout the year?

• It remains constant

• It decreases steadily

• It varies from 23.5 degrees to -23.5 degrees

• It only changes during equinoxes

Tags

NGSS.MS-ESS1-1

What celestial event occurs when the Sun is at its highest point in the sky?

• Zenith

• Meridian

• Equinox

• Solstice