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Earth, Moon and Sun Vocabulary

Across
The measurement between the rotational axis and orbital axis equal to a 23.5 degree angle.
A tide of increased range that occurs two times a month, at the new and full moons.
During an eclipse when the moon passes through the earths shadow.
The part of a moons shadow during an eclipse where the moon completely covers the sun.
The sunlit fraction of the moon that we can see from Earth continuously gets smaller.
Believed the sun was the center of the universe and all of the planets orbited around it.
The change in the sunlit area of one celestial body as seen from another celestial body.
An opposition, specifically of the sun and the moon.
The theory that the sun was at the center of the universe and all of the planets revolved around it in an eliptical orbit.
Was one of the first scientists to use a telescope.
The point in the orbit of the moon, or of a satllite which is nearest to the Earth.
A tide of minimum range that occurs during the first and third quarter moons.
On 1 day in spring and 1 day in fall, the day and the night have equal lengths.
Believed that all of the planets revolved around the sun in an elliptical orbit.
Down
The area of the shadow during an eclipse where only a portion of the moon is blocked by the sun.
The difference in levels of ocean water at high and low tides.
During an eclipse when the disk of the moon completely covers the disk of the sun.
The time required for Earth to rotate once on its axis.
A theory that the Earth was at the center of the universe and the sun, moon and other planets revolved around it.
The combination of the nuclei of small atoms to form a larger nucleus; releases energy.
The sunlit fraction of the moon that we can see from Earth continuously gets larger.
A natural or artificial body that revloves around a planet
An element that is the simplest and lightest; combines with nuclei in fusion.
A division of the year that is based on the orbit of the moon around the sun.
A dark area of the photosphere of the sun that is cooler than the surrounding areas and has a strong magnetic field.
The force of attraction between all masses in the universe.
The highest point in development of something.
The time required for the Earth to orbit once around the sun.