The central, darker part of a shadow where light is totally blocked
the orbit of one object around another object
an occurrence during which the Moon's shadow appears on the Earth's surface
the spin of an object around its axis
a Moon phase during which more of the Moon's near side is lit each night.
the part of the shadow that is lighter because light is partially blocked
when Earth's rotation axis is tilted neither toward nor away from the Sun
when Earth's rotation axis is tilted directly toward or away from the Sun
the path an object follows as it moves around another object
the lit part of the Moon or a planet that can be seen from Earth
phase of the Moon during which less of the Moon's near side is lit each night
the line on which an object rotates
imaginary vertical line that cuts through the center of Earth around which Earth spins
a round, three-dimensional object whose surface is the same distance from its center at all points
Earth's yearlong elliptical orbit around the Sun
occurs when the Moon pauses directly between the Sun and Earth and cast a shawdow over part of Earth
change in appearance of the Moon as viewed from the Earth
moon phase that occurs when the Moon is between Earth and the Sun
curved path followed by a satellite as it revolves around an onject
describes phase that occur after a full moon as the visible lighted side of the Moon grows smaller
phase that occurs when all of the Moon's surface facing Earth reflects light.
describes phase following a new moon, as more of the Moon's lighted side becomes visible
twice-yearly point at which the Sun reaches its greatest distance north or south of the equator
occurs when Earth's shawdow falls on the Moon
move or cause to move into a sloping position
spinning of Earth on its imaginary axis
twice-yearly time-each spring and fall-when the Sun is directly over the equator and the number of daylight and nighttime hours are equal worldwide
the partial or total blocking of light of one celestial object by another
the sun shines directly on the plant with no other plants, trees, or structures interfering with the sunlight
sunlight that reaches the Earth’s surface after being dispersed in the atmosphere over haze, dust and clouds
a round solid figure, or its surface, with every point on its surface equidistant from its center.
an imaginary line about which a body rotates.
the action of rotating around an axis or center.
an instance of revolving.
an obscuring of the light from one celestial body by the passage of another between it and the observer or between it and its source of illumination
when the sun reaches its highest or lowest point in the sky at noon, marked by the longest and shortest days.
the time or date (twice each year) at which the sun crosses the celestial equator, when day and night are of equal length (about September 22 and March 20).
the shape of the illuminated (sunlit) portion of the Moon as seen by an observer on Earth.
the phase of the moon when it is in conjunction with the sun and invisible from earth, or shortly thereafter when it appears as a slender crescent.
(of the moon between new and full) have a progressively larger part of its visible surface illuminated, increasing its apparent size.
the phase of the moon in which its whole disk is illuminated.
"shrinking" or decreasing in illumination.
an eclipse in which the sun is obscured by the moon.
an eclipse in which the moon appears darkened as it passes into the earth's shadow.
the angle between an object's rotational axis and its orbital axis, or, equivalently, the angle between its equatorial plane and orbital plane.
Diffused light, as opposed to the direct rays of the sun
the sun shines directly
the path followed by an object revolving around another object, under the influence of gravitation (see satellite).
the path of an object in space as it moves around another object due to gravity
everything-space and all the matter and energy in it
a group of millions of stars held together by their own gravity
a group of stars that form a pattern in the sky
the distance between one wave peak and the next wave
the range of colors that appears in a beam of visible light
an object that orbits a more massive object
a spacecraft that passes one or more planets
a spacecraft used to study a planet over a long period of time
used to land instruments on a planet
the imaginary line which a turning body rotates
the motion of one object around another
patterns of temperature changes caused by the position of the Earth's axis relative to the direction of sunlight
the patterns of lit and unlit portions of the Moon as seen from Earth
the moon becomes dark because it passes through the Earth's shadow
the sun seems to darken because the Moon's shadow falls onto part of Earth
the darkest part of the shadow
a region of lighter shadow that surrounds an umbra
The spinning motion of a planet in its axis.
The blocking of sunlight that occurs when the moon is in between the Earth and the sun.
The two days of the year on which the sun is at its greatest distance.
A tide with the greatest distance between a low and high tide.
A rise and fall of the ocean due to the moons gravity.
The darkest part of a shadow
The force of gravity on an object.
The study of the moon, stars, and other objects in space.
An imaginary line between the North and South poles.
The partial or total blocking of an object in space
A push or pull exerted on an object.
A force that pulls rocks and other materials and attracts objects together.
The blocking of sunlight that occurs when the Earth is directly in front of the moon.
The amount of matter in an object.
A tide with the least difference between a low and high tide that occurs when the sun and the moon pull with right angles at each other at the first and third quarters.
The path of an object that revolves around another object in space.
Partially shaded outer region of the darkest part of the shadow.
One of the different apparent shapes on the moon as seen on Earth.
The tendancy of an object to resist change of motion.
The partial or total blocking of an object by another in space
The different shapes of the moon you see from earth.
Occurs when a new moon blocks your view of the sun (2 words).
The very darkest part of the moon's shadow, cone shaped.
Larger, less dark part of the moon's shadow.
The rise and fall of the ocean water that occurs about every 12-1/2 hours.
Moon's dark flat areas, hardened rock caused by huge lava flows.
Large round pits.
Chunks of rock or dust from space.
When an object in space comes between the sun and a third object, casting a shadow on that object.
The study of the moon, stars, and other objects in space.
An imaginary line that crosses through the Earth's center and the North and South Poles.
Spinning of the Earth on its axis.
Movement of one object around another.
The path taken while making a revolution.
A push or pull.
Imaginary line through Earth's center
In relation to the Sun
Caused by the tilt of Earth's axis as the Earth travel around the Sun
Two days of the year on which neither hemisphere is tilted toward or away from the Sun (September 22 and March 21)
Two days of the year on which the noon sun is directly overhead at either 23.5 south or north (December 21 and June 21)
Moon is getting larger in the sky, moving from the New Moon towards the Full Moon
Different shapes of the moon as seen from earth
Moon is decreasing in size, moving from the Full Moon towards the New Moon
The spinning motion of a planet on its axis
When half of the Moon's Earth facing side is lit by the sun
Decreases in size from sunlight
When just half of the moon's Eartg-facing side is visible
The moon face is completely lit
Thin silver of the moon
When the side of the moon is facing earth also faces directly away from the sun
Caused by the interaction of the Earth, Moon and Sun
The movement of an object around another object
Blocking light from one celestial body by the passage of another between it
When the moon passes between the Son and Earth
When the moon passes through earth shadow
Each of the 4 divisions of the year.
an imaginary straight line through Earth about which an object may rotate or that divides an object into symmetrical halves
The distance that light travels in one year.
A celestial body moving in an elliptical orbit around a star.
The natural satellite of the earth.
A small rocky body orbiting the sun.
A celestial object consisting of a nucleus of ice and dust and, when near the sun, a “tail” of gas and dust particles pointing away from the sun.
An eclipse in which the sun is obscured by the moon.
An eclipse in which the moon appears darkened as it passes into the earth's shadow.
A system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
The collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets
The curved path of a celestial object or spacecraft around a star, planet, or moon, especially a periodic elliptical revolution.
An instance of revolving.
The action of rotating around an axis or center.
A unit of length, roughly the distance from Earth to the Sun.
The shape of the illuminated portion of the Moon as seen by an observer on Earth
The Moon block the light from the Sun reaching the Earth (order S.M.E.)
This defines a _________ 1) is in orbit around the Sun, 2) has sufficient mass so that it assumes a hydrostatic equilibrium (nearly round) shape, and 3) has cleared the neighborhood around it's orbit.
The Earth block the light from the Sun reaching the Moon (order S.E.M.)
How much of the moon is always lit, whether we see it or not?
The illuminated portion of the Moon is decreasing. The left side is lit.
The illuminated portion of the Moon is increasing. The right side is lit.
A dwarf planet in our solar system that has four moons?
The 'Great Dark Spot' is on which planet?
What planet has the largest tilt?
By using a small telescope, we see this planet has rings
One unique feature of Jupiter is the?
Covered in iron oxide (rust), this planet appears reddish in color
What celestial object has been visited by human? (Scientific Name)
Which planet, currently, is the only one to have liquid water on the surface?
Hottest planet in our solar system and rotates backwards.
This is the smallest planet in our solar system and it has no moon or no atmosphere.
What is the closest star to the Earth? (Scientific Name)
All Jovian planets have this in common?
What location do objects orbits the Sun the fastest?
The Inner Planets are considered what?
The Outer Planets are called what?
All Terrestrial planets have this in common?
When you look at the stars, you are actually looking into the?
This ancient culture is credited with making detailed observation of comets and supernova in 1054 BC
Which civilization recorded the first eclipse, in 2136 BC?
Shooting stars really aren’t stars; they are leftover parts of a _____ that the Earth passes through.
A chunk of rock or dust in space
A meteoroid that passes through the atmosphere and hits the Earth’s surface.
A streak of light in the sky produced by the burning of a meteoroid in Earth’s atmosphere.
A region of the solar system that is just beyond the orbit of Neptune and that contains small bodies made mostly of ice.
Most comets come from this location, past Pluto (Two words)?
Most famous comet is - that comes around every 76 years (Two words)?
A rocky metallic objects that orbit the sun but are too small to be considered planets and are leftovers from the formation of the solar system.
What separates the Inner Planets from the Outer Planets (Two Words)
Eratosthenes used a stick, a well, and an assistant to calculate the circumference of this?
Proposed the Earth rotates on its axis and revolves around the Sun in 260 BC
This Dutch eyeglass maker, Johannes Lippershey, is created in make this new tool to study the heavens.
Aristotle, a Greek astronomer, proposed what model of the Solar System in 340 BC?
First person to walk on the Moon
This astronomer proposes the Earth was at the center and other planets had epicycles. (Full Name)
Newton came up with how many laws of motion?
Kepler came up with how many laws of planetary motion?
Which astronomer challenged the idea of a geocentric solar system? (Full Name)
Which astronomer died from a bladder infection? (Full Name)
This astronomer used this new invention, the telescope, to help prove the correct model of the solar system? (Full Name)
This astronomer was Brahe assistant? (Full Name)
23.5 degrees S latitude, shortest day of the year
23.5 degrees N latitude, longest day of the year
Term that describes equal amounts of day/night
In what season does aphelion occur?
In what season does the perihelion occur?
What explains why distance to the Sun isn't what makes it winter or summer?
The following was considered correct for the order the solar system: Earth-Moon-Venus-Mercury-Sun-Mars-Jupiter-Saturn-Stars
A mixture of all color of light
The movement of an object around another object
The spinning motion of a planet about its own axis
There are 24 standard ____ ____ around the globe.
This happen with both light and sound, apparent shift in wavelength emitted by source either moving towards or away from an observer?
This device can be used to separate white light into its colors?
When a star was moving towards us, the light is considered to be?
The apparent backward motion of a planet is called?
What does AU stand for? (Two words)
An Earth centered universe is called?
A Sun centered Universe is called?
The point in the orbit of a satellite or moon at which it comes nearest to the object it is orbiting
Name the location, when a satellite is traveling the slowest and is farthest from Earth?
The distance from the Earth to the Sun of 152 million km
The distance from the Earth to the Sun of 147 million km
Formation of theories about the origin and change overtime of the entire universe
The 'Big Bang' is considered to be what?
Earth is not a perfectly round sphere, it is more like a squished basketball, also know as
the difference in levels of ocean water at high tide and low tide
a tide of minimum range that occurs during the first and third quarters of the moon
the passing of the moon between Earth and the sun; the shadow of the moon falls on Earth
the passing of the moon through the Earth's shadow at full moon
dark area of the photosphere of the sun that is cooler than the surrounding areas and that has a strong magnetic field
in the orbit of a satellite, the point at which the satellite is farthest from Earth
a force of attraction between objects that is due to their masses and that decreases as the distance between the objects increases
the time required for Earth to rotate once on its axis
the phase of the moon during which the moon's sunlit area as seen from Earth is increasing; the phase after the new moon and before the full moon
the phase of the moon during which the moon's sunlit area as seen from Earth is decreasing; the phase after the full moon and before the new moon
the process in which light nuclei combine at extremely high temperatures, forming heavier nuclei and releasing energy
describes something that uses the Earth as the reference point
a natural or artificial body that revolves around a planet
a tide of increased range that occurs two times a month, at the new and full moons
the time required for the Earth to orbit once around the sun
in astronomy, the change in the illuminated area of one celestial body as seen from another celestial body; phases of the moon are caused by the changing positions of the Earth, the sun, and the moon
a division of the year that is based on the orbit of the moon around the Earth
the outer part of the shadow cast by the Earth or the moon in which sunlight is only partially blocked
a shadow that blocks sunlight, such as the conical section in the shadow of the Earth or the moon
the moment when the sun appears to cross the celestial equator
in the orbit of a satellite, the point at which the satellite is closest to Earth
concluded that all the planets revolve around the sun and stated the three laws of planetary motion
used a telescope to find craters and mountains on the Earth's moon, four of Jupiter's moon, sunspots on the sun, and the phases of Venus
offered a new theory that the sun is at the center of the universe
a conjunction or opposition of the moon with the sun.
a colorless, odorless, highly flammable gas
the Earth's axis partly on its side, partly upright
The path in object follows as it moves around another object
The motion of one object around another object
The line on which an object rotates
Our day went Earth’s Rotation access is the most toward or away from the sun
A day when earth‘s rotation axis is leaning along earth’s orbit, neither toward nor away from the sun
The large dark flat areas on the moon
The portion of the moon or a planet reflecting light as seen from earth
More of the moons near side is a lit each night
Less of the moon’s near side is lit each night
The central darker part of a shadow were light is totally blocked
The later part of a shadow were light is partially blocked
When the moon shadow appears on earth surface
Occurs when the moon moves into earths shadow
The daily rise and fall of sea level