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Astronomy
The scientific study of planets, stars, black holes, comets and other celestial bodies that make up outer space.
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Astronomy > Solar system 
3D Sun
Astronomy; Solar system
The three dimensional view of the sun. The first 3D images of the sun have been captured by NASA's Solar TErrestrial RElations Observatory (STEREO) satellites which enable ...
Sun
Astronomy; Solar system
The star that is orbited by all of the planets and other objects of the Solar System and that supplies the heat and light.
solar flare
Astronomy; Solar system
A sudden throwing off of burning gases from a small part of the surface of the Sun. Solar flares happen near sunspots.
solstice
Astronomy; Solar system
Either of the two times during the year when the Sun is farthest north or south of the equator.
year
Astronomy; Solar system
The period of time that it takes for a planet to make one complete orbit around the Sun is called a year.
heliocentric
Astronomy; Solar system
Having the Sun as the center. The solar system is heliocentric as compared to the geocentric.
heliotropism
Astronomy; Solar system
The growth or turning of a plant toward the Sun is called heliotropism.A field of sunflowers always face toward the Sun.
Sub-categories
- Astrometry (117)
- Astronaut (14221)
- Comets (3684)
- Cosmology (251)
- Galaxy (567)
- General astronomy (16061)
- Mars (1797)
- Mathematical astronomy (130)
- Moon (1858)
- Planetary science (7689)
- Planetology (678)
- Radio astronomy (37)
- Solar system (663)