Akademisk IELTS (Band 8 och Ovan) - Astronomy

a highly energetic celestial object emitting powerful radiation from the center of a galaxy, often associated with a supermassive black hole

kvasar

a region beyond Neptune in the solar system containing icy objects like dwarf planets, asteroids, and comets

Kuiperbältet

a distant, hypothetical region surrounding the solar system, thought to harbor icy bodies and comets

Oortmolnet

the outer layer of the Sun's atmosphere, observable as a plasma halo during a solar eclipse

korona, solens korona

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

ekliptik

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

an exploding star that as a result is emitting a very large amount of light, more than the sun

supernova, exploderande stjärna

a highly magnetized, rotating neutron star that emits beams of electromagnetic radiation from its magnetic poles

pulsar

the lowest layer of Earth's atmosphere, extending from the surface up to an average altitude of about 8-15 kilometers

troposfär

the atmospheric layer above the troposphere, where temperature generally increases with altitude and the ozone layer is situated

stratosfär

the atmospheric layer above the stratosphere, where temperatures decrease with altitude and it extends up to the mesopause

mesosfär

the atmospheric layer above the mesosphere, where temperatures increase with altitude and it extends to the exosphere

termosphere, termisk skikt

a layer in the upper atmosphere containing ions and free electrons, affecting radio communication and contributing to auroras

jonosfär

the outermost layer of Earth's atmosphere, transitioning to outer space, with extremely low gas densities

exosfär

the protective magnetic field region around a celestial body, shielding it from solar wind and charged particles

magnetosfär