Earth and Space Science

Vast majority of asteriods are found between Mars and Jupiter in the

Locked into stable gravitational configuration with Jupiter, orbiting the Sun at posions 60 degrees ahead or behind in its orbit

When the orbit of shower meteors intersects the Earth, numerous meteors may be viewed coming in from the same point or __ in the sky

Earth crossing asteroids or near Earth objects have orbits in the inner part of the solar system

Appearing yellowish because of the reflected sunlight can sometimes be seen as a distinct feature pointing a direction intermediate between the cometary path and the direction awayfrom the Sun.

Diffuse region around the nucleus of the comet, a region of relatively dense gas

Interior to the coma is the __, a mass of mostly water ice with rocky particles

Orbital periods of a few hundred to a million years or more

Periods of 3 to 200 yrs

Constant outflow of charged particles from the outer atmosphere of the Sun, which moves past Earth with a velocity of 400 km/s

Largest non-plantary or non-lunar objects in our solar system, larger then 100m in diameter

What are the four basic categories of minor objects

Mean solar time (clock or watch)

Great circle extends due N on the horizon through zenith to due S

Stars that are always above the northern horizon

Moon passes through the shadow of the Earth (longer duration)

The difference between apparent solar time and mean solar time

Vast spherical bowl

The point directly overhead

Patterns of brighter stars

Stars that are futher to the south and that rise and set sometime during

The great circle formed on the celestial sphere by extending the plane of the Earth's equator

Daily time based on the hourly position of the sun

Humans naturally orient themselves by the horizon

The great circle on the celestial sphere defined by the solar path

The changing of the area of the moon that is illuminted

Moon phases in front of the sun

Name the four early supporters of the Heliocentric Theory

Name Kepler's three laws

List the six characteristics of celectial bodies that astronomers study

Early calendars regulated what three things?

Apparent change in a postion of an object due to change of how it is viewed

A systematic approach to research

Light appearing dimmer due to dust

The effect of producing colors when white light is refracted

Reflection occuring in particle to particle interations

Number of cycles that move by a fixed point

Integrated set of statements used to explain natural phenomena

Earth centered model

Study of ancient humankind's awareness of celestial bodies

When two waves interact with each other

When light passes from one mediumto another its direction appears to change

When two waves that are the same interact

When two opposite waves interact

Sun centered model

The study of the stars

Discrete packet of electromagnetic energy

The distance between similar positions on successive cycles of the wave

Testable prediction

Collects light over a large surface area and secondarily to produce a magnification of the image of the objects under study

Site at which one or more telescopes have been constructed

Bends the paths of light entering at every position on the objective lens to bring it to a common focus

Curved mirror as its light gathering surface primere mirror and other mirrors and optical elements to bring all incident light to a common focus

94% of astreoids are found between

To modify the surface configuration of their primary mirrors ___ to correct for the visually blurring effects of the atmosphere

Far more efficent than photography, electronic device.

Used where the intensity of light is to be measured

Smaller bodies in between planets, defined as any rocky-metallic ojects less than 100 meters in size

While heated to incandescence by atmospheric friction during their passage through atmosphere

A fragment that survives to hit the ground

Orbital paths intersect that of Earth in random directions

Remains of old comets that have left lots of small particles and dust in a common orbit

What is the angle of tilt in degrees?

Totally illuminating

Right ascension of the stars that are crossing the meridian at any moment

Sept 21 happens twice annaully at or with the celestial equator

2 reasons for the seasons...what is the tilt of the Earth include?

(increasing illimination) 1st quater to full

Less than half is illuminated by sunlight

Between full and quarter