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Q 1/49
Score 0
a natural object in space, such as the sun, moon, a planet, or a star.
30
celestial body
Q 2/49
Score 0
searches for transits and eclipses by carefully monitoring a star system's brightness over an extended period of time
30
transit method
49 questions
Q.
a natural object in space, such as the sun, moon, a planet, or a star.
1
30 sec
Q.
searches for transits and eclipses by carefully monitoring a star system's brightness over an extended period of time
2
30 sec
Q.
A star's apparent brightness
3
30 sec
Q.
The theory that the universe originated in a huge explosion that released all matter and energy.
4
30 sec
Q.
Space and all the matter and energy in it
5
30 sec
Q.
A huge group of single stars, star systems, star clusters, dust, and gas bound together by gravity
6
30 sec
Q.
Thermal radiation left over from the Big Bang
7
30 sec
Q.
The change in frequency of a wave as its source moves in relation to an observer
8
30 sec
Q.
a kind of radiation including visible light, radio waves, gamma rays, and X-rays, in which electric and magnetic fields vary simultaneously.
9
30 sec
Q.
a graph relating the surface temperatures and absolute brightness of stars
10
30 sec
Q.
From violet to red; violet/blue has higher frequency while red has lower frequency
11
30 sec
Q.
A normal star that is undergoing nuclear fusion. Our sun is an example of this.
12
30 sec
Q.
A large cloud of dust and gas in space
13
30 sec
Q.
A contracting cloud of gas and dust; the earliest stage of a star's life
14
30 sec
Q.
(astronomy) a shift in the spectra of distant galaxies toward longer wavelengths
15
30 sec
Q.
A ball of hot gas, primarily hydrogen and helium, that undergoes nuclear fusion.
16
30 sec
Q.
pertaining to the stars
17
30 sec
Q.
The star in the center of our solar system around which Earth and other planets revolve.
18
30 sec
Q.
Creation of energy by joining the nuclei of two hydrogen atoms to form helium.
19
30 sec
Q.
H
20
30 sec
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He
21
30 sec
Q.
A huge cloud of gas that is created when the outer layers of a red giant star drift out into space
22
30 sec
Q.
A small, hot, dim star that is the leftover center of an old star
23
30 sec
Q.
a region of space having a gravitational field so intense that no matter or radiation can escape.
24
30 sec
Q.
A gigantic explosion in which a massive star collapses and throws its outer layers into space
25
30 sec
Q.
a very large star of high luminosity and low surface temperature. Red giants are thought to be in a late stage of evolution when no hydrogen remains in the core to fuel nuclear fusion.
26
30 sec
Q.
the displacement of the spectrum to shorter wavelengths in the light coming from distant celestial objects moving toward the observer.
27
30 sec
Q.
Fusion of light elements to produce heavier ones during a supernova (or massive explosion of a star)
28
30 sec
Q.
Mercury, Venus, Earth, Mars
29
30 sec
Q.
Jupiter, Saturn, Uranus, Neptune
30
30 sec
Q.
periodic variation in the number of sunspots that occurs approximately every 11 years
31
30 sec
Q.
The orbital eccentricity of an astronomical object is a parameter that determines the amount by which its orbit around another body deviates from a perfect circle. A value of 0 is a circular orbit, values between 0 and 1 form an elliptic orbit,
32
30 sec
Q.
A planet outside of our Solar System.
33
30 sec
Q.
detecting exoplanets by observing the change in brightness as the planet eclipses the star.
34
30 sec
Q.
All planets move about the Sun in elliptical orbits, having the Sun as one of the foci. (2) A radius vector joining any planet to the Sun sweeps out equal areas in equal lengths of time. (3) The squares of the periods (of revolution) of the planets are directly proportional to the cubes of their mean distances from the Sun.
35
30 sec
Q.
SI unit of force
36
30 sec
Q.
the path that a body follows as it travels around another body in space
37
30 sec
Q.
A large body in space that orbits a star and does not produce light of its own
38
30 sec
Q.
Any natural body, like the moon or artificial object that orbits another object.
39
30 sec
Q.
the collection of eight planets and their moons in orbit around the sun, together with smaller bodies in the form of asteroids, meteoroids, and comets.
40
30 sec
Q.
A elongated circle, or oval shape, the shape of the planets orbit.
41
30 sec
Q.
A force of attraction between objects that is due to their masses and inverse related to their distance.
42
30 sec
Q.
The place in the Earth's orbit where Earth is farthest away from the sun.
43
30 sec
Q.
the point in the orbit of a planet, asteroid, or comet at which it is closest to the sun.
44
30 sec
Q.
Line through the widest part of an ellipse
45
30 sec
Q.
A measure of the amount of matter in an object
46
30 sec
Q.
A measure of the force of gravity on an object
47
30 sec
Q.
The only downward force acting on a free falling object is gravity and it causes objects to accelerate at a force of 9.86 m/s2 on Earth
