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1
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Plane of Earth's orbit around the Sun
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2
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When the Moon passes between Earth and the Sun and the Moon casts a shadow on Earth, blocking Earth's view of the Sun; can be partial or total
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6
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Telescope that uses mirrors to focus visible light
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8
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Crater formed when space material impacted on Moon's surface
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9
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When Earth passes between the Sun and the Moon, and Earth's shadow falls on the Moon; occurs only during a full moon
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10
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Process that links separate telescopes so they act as one telescope, producing more detailed images as the distance between them increases
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12
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The state at which the Moon's orbital and rotational periods are equal
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14
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Layer of loose, ground-up rock on the lunar surface
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17
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Telescope that uses lenses to focus visible light
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1
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All types of electromagnetic radiation arranged according to wavelength and frequency
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3
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A dark region of the Moon with smooth planes
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4
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Priod when the Sun is overhead at its farthest distance either north or south of the equator
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5
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Cosest point in the Moon's elliptical orbit to Earth
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7
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Time of year during which Earth's axis is at a 90° angle to the Sun; both hemispheres receive exactly 12 hours of sunlight and the Sun is directly overhead at the equator
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11
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Valleylike structure that meanders across some regions of the Moon's maria
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13
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Long trail of ejecta that radiates outward from a Moon crater
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15
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Light-colored, mountainous, heavily cratered area of the Moon, composed mostly of lunar breccias
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16
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Farthest point in the Moon's elliptical orbit to Earth
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18
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Percentage of sunlight that is reflected by the surface of a planet or a satellite, such as the Moon
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19
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Material that falls back to the lunar surface after being blasted out by the impact of a space object
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