My First Set

Front 1

solstice

Back 1

either of the two times in the year,the summer solstice and the winter solstice,when the sun reaches its highest or lowest point in the sky at noon,marked by the longest and shortest days.

Front 2

observatory

Back 2

a room or building housing an astronomical telescope or other scientific equipment for the study of natural phenomena

Front 3

meteorite

Back 3

a meteor that survives its passage through the earth's atmosphere such that part of it strikes the ground. More than 90 percent of meteorites are of rock, while the remainder consist wholly or partly of iron and nickel.

Front 4

reflecting telescope

Back 4

a telescope in which a mirror is used to collect and focus light.

Front 5

satellite

Back 5

an artificial body placed in orbit around the earth or moon or another planet in order to collect information or for communication.

Front 6

radio telescope

Back 6

an instrument used to detect radio emissions from the sky, whether from natural celestial objects or from artificial satellites.

Front 7

Pluto

Back 7

the most remote known planet of the solar system, usually ninth in order from the sun, discovered in 1930 by Clyde Tombaugh.

Front 8

Mercury

Back 8

a small planet that is the closest to the sun in the solar system, sometimes visible to the naked eye just after sunset.

Front 9

equinox

Back 9

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)

Front 10

revolution

Back 10

motion in orbit or a circular course or around an axis or center.

Front 11

electromagnetic spectrum

Back 11

the range of wavelengths or frequencies over which electromagnetic radiation extends.

Front 12

lunar eclipse

Back 12

an eclipse in which the moon appears darkened as it passes into the earth's shadow.

Front 13

waning

Back 13

have a progressively smaller part of its visible surface illuminated, so that it appears to decrease in size

Front 14

orbit

Back 14

the curved path of a celestial object or spacecraft around a star, planet, or moon, esp. a periodic elliptical revolution.

Front 15

solar system

Back 15

the collection of nine planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets.

Front 16

comet

Back 16

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

Front 17

asteroid

Back 17

small rocky body orbiting the sun. Large numbers of these, ranging in size from nearly 600 miles across to dust particles, are found esp.

Front 18

Jupiter :)

Back 18

the largest planet in the solar system, a gas giant that is the fifth in order from the sun and one of the brightest objects in the night sky

Front 19

solar eclipse

Back 19

an eclipse in which the sun is obscured by the moon.

Front 20

lunar eclipse

Back 20

an eclipse in which the moon appears darkened as it passes into the earth's shadow.

Front 21

Sphere

Back 21

a round 3d object such as a planet like earth

Front 22

axis

Back 22

an fake line which a planet rotates.

Front 23

ellipse

Back 23

earth's year long orbit around the sun.

Front 24

Refracting telescope

Back 24

convex meaning bends out which means it magnifies an image .