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C2 Ordlista - Astronomy
Här kommer du att lära dig alla de väsentliga orden för att prata om astronomi, samlade speciellt för C2-nivå elever.
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a region beyond Neptune in the solar system containing icy objects like dwarf planets, asteroids, and comets
Kuiperbältet, Kuiperringen
a highly energetic celestial object emitting powerful radiation from the center of a galaxy, often associated with a supermassive black hole
kvasar, kvasistellärt objekt
a distant, hypothetical region surrounding the solar system, thought to harbor icy bodies and comets
Oortmolnet, Oortmolnet
the outer layer of the Sun's atmosphere, observable as a plasma halo during a solar eclipse
korona, Solens yttre atmosfär
the apparent path that the Sun traces in the sky over the course of a year, which is also the plane of the Earth's orbit around the Sun
ekliptikan
the apparent displacement or difference in the apparent position of an object when viewed along two different lines of sight, often used in astronomy to measure the distance of nearby stars
parallax, skenbar förskjutning
a highly magnetized, rotating neutron star that emits beams of electromagnetic radiation from its magnetic poles
pulsar, roterande neutronstjärna
a unit of measurement equal to the average distance between the Earth and the Sun, approximately 149.6 million kilometers
astronomisk enhet, AU
a unit of astronomical distance equivalent to about 3.26 light-years
parsek, en astronomisk längdenhet som motsvarar ungefär 3
a high-energy particle, mainly originating from outside the Solar System, that travels through space at nearly the speed of light
kosmisk strålning, kosmisk partikel
(cosmology) the faint glow of radiation spreading through the universe, believed to be residual radiation from the Big Bang
kosmisk bakgrundsstrålning, restrålnings från Big Bang
(cosmology) a theory proposing that the solar system formed from a rotating nebula of gas and dust about 4.6 billion years ago
nebulhypotes, nebulteori
(cosmology) a measure of the rate at which the universe is expanding, determined from the observation of distant galaxies' recession velocities
Hubblekonstanten, Hubbleparametern
the matter and radiation that exists in the space between stars within a galaxy
interstellärt medium, interstellärt materia
the space surrounding the Sun dominated by solar wind
heliosfär, rymd dominerad av solvind
very small particles originally derived from stars, serving as raw material for forming planets, and existing between galaxies, stars, and other celestial bodies
kosmisk damm, stjärndamm
a small celestial body that becomes visible as a meteor upon entrance into the atmosphere of the earth
meteoroid, litet himlakropp
(cosmology) the rapid expansion of the universe following the Big Bang
inflation, snabb expansion
a disruption in earth's magnetic field caused by solar activity, resulting in variations that can impact electronic systems and communications on earth
magnetisk storm, geomagnetisk storm
the colored lights, mainly green and red, in the sky seen primarily near the southern magnetic pole
sydligt ljus, aurora australis
the colored lights, mainly green and red, in the sky seen primarily near the northern magnetic pole
norrsken, aurora borealis
associated with the phenomena, processes, or theories related to the origin and formation of the universe or celestial bodies
kosmogonisk, relaterad till fenomen
study of celestial objects outside the Milky Way galaxy
extragalaktisk astronomi, studie av himlakroppar utanför Vintergatan
relating to or resembling a nebula, which is a cloud of gas and dust in outer space
nebulös, relaterad till en nebulosa
relating to the stars or constellations, especially in terms of their positions relative to Earth
sidereisk, stjärnrelaterad
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