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Astronomy Vocabulary - Statistics
General Stats
- This quiz has been taken 215 times
- The average score is 17 of 25
Answer Stats
| Hint | First Letter | Answer | % Correct |
|---|---|---|---|
| An event that occurs when the shadow of a planet or moon falls upon a second body. | E | Eclipse | 95%
|
| A concentration of mass so compact that it creates a region of space from which not even light can escape. | B | Black hole | 93%
|
| A vast collection of stars, gas, and dust, typically 10,000 to 100,000 light-years in diameter and containing billions of stars. | G | Galaxy | 93%
|
| The distance that light (moving at about 186,000 miles per second) travels in one year, or about 6 trillion miles. | L | Light-year | 90%
|
| A body of ice and rocky debris, typically a few miles across, that orbits the Sun in a long ellipse. | C | Comet | 89%
|
| The gravitationally curved trajectory of an object, such as the trajectory of a planet around a star or a natural satellite around a planet. | O | Orbit | 89%
|
| An interstellar cloud of dust, hydrogen, helium, and other ionized gases. | N | Nebula | 88%
|
| A star ending its life in a huge explosion. | S | Supernova | 88%
|
| The two times each year when the Sun is directly overhead at noon as seen from Earth’s equator. | E | Equinox | 87%
|
| A brief streak of light caused by a small piece of solid matter entering Earth’s atmosphere at tremendous speed (typically 20 to 40 miles per second). | M | Meteor | 85%
|
| A minor planet orbiting the Sun, consisting of metal and rock. | A | Asteroid | 78%
|
| A massive ball of gas that generates prodigious amounts of energy (including light) from nuclear fusion in its hot, dense core. | S | Star | 75%
|
| A type of astronomical body orbiting a star or stellar remnant which is massive enough to be rounded by its own gravity (but not massive enough to achieve thermonuclear fusion) and has cleared its neighbouring region of all planetesimals. | P | Planet | 74%
|
| A temporary dark blemish on the surface of the Sun that is a planet-size region of gas cooler than its surroundings. | S | Sun spot | 72%
|
| A region on the celestial sphere surrounding a specific and identifiable grouping of stars. | C | Constellation | 71%
|
| A supermassive black hole gorging on gas at the center of a distant galaxy. | Q | Quasar | 70%
|
| The two times each year when the Sun is farthest north or south in the sky. | S | Solstice | 70%
|
| A highly magnetized rotating neutron star or white dwarf that emits a beam of electromagnetic radiation. | P | Pulsar | 66%
|
| A broad, faintly glowing band stretching across the night sky, composed of billions of stars in our galaxy too faint to be seen individually. | M | Milky Way | 60%
|
| A glow in the night sky or around one’s observing site caused by artificial light and greatly reducing the number of stars that are visible. | L | Light pollution | 58%
|
| A type of stellar remnant composed mostly of electron-degenerate matter, and lacking the mass needed to continue the nuclear fusion process with its constituent atoms, so the object's energy output normally comes from radiative cooling. | W | White dwarf | 54%
|
| The set of constellations situated along the ecliptic in the sky, through which the Sun, Moon, and planets move. | Z | Zodiac | 51%
|
| Any pattern of stars recognizable in Earth's night sky. May be part of a constellation or may be composed of stars from more than one constellation. | A | Asterism | 19%
|
| Sunlight reflected by Earth that makes the otherwise dark part of the Moon glow faintly. | E | Earthshine | 14%
|
| A collection of stars orbiting a common center of mass. | S | Star cluster | 11%
|
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