Page 13 - Universe dictionary by Futura-Sciences

Alphabetical index

Hipparcos Hipparcos was the first space astrometry mission (astrometry ...	Horizontal coordinates of a direction The polar coordinates of the direction carried over to the ...
Hot Jupiter Hot Jupiters are exoplanets often exceeding the mass of ...	Hour angle The hour angle is one of the hour coordinates. The dihedral ...
Hour circle of a direction The hour circle of a direction is a semi-great circle of the ...	Hubble constant The Hubble constant gives the rate of expansion of the ...
Hubble telescope The fruit of an unprecedented collaboration between the ...	Hubble's law Hubble's law is the relationship between the speed and the ...
Huygens probe The HUYGENS probe is 350 kg of concentrated technology. Its ...	Hydra Hydra is the familiar name of Pluto's moon S/2005 P 2 ...
Hyperion Hyperion (Saturn VII) was discovered by Bond and Lassell in ...	Hypernova A hypernova is the explosion of a star at least 40 times ...
Iapetus Iapetus (Saturn VIII) was discovered by Cassini in 1671. Its ...	IATA IATA (International Air Transport Association) An ...
Ikonos Ikonos was an American observation satellite weighing around ...	Impactor An impactor is an object striking a celestial body (planet, ...
Inclination Inclination is the angle between the plane of the orbit of a ...	Instrumental aberration In optics, instrumental aberration covers all the phenomena ...
Interaction (or force) To explain the behaviour of matter, four forces ...	International Astronomical Union The International Astronomical Union (IAU) was founded in ...