Advanced Academic IELTS Words for "Astronomy"

quasar

noun

q

k

u

w

a

eɪ

s

z

a

ɑ

r

Close

Sign in

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

Example

Click on words

Astronomers observed a distant quasar, providing insights into the early universe.

The intense brightness of a quasar is attributed to the gravitational energy of a black hole.

kuiper belt

noun

/kjˈuːɪpɚ bˈɛlt/

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

Grammatical Information:

compound noun

oort cloud

noun

/ˈuːət klˈaʊd/

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

Grammatical Information:

compound noun

corona

noun

c

k

o

ɜ

r

o

oʊ

n

a

ə

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

ecliptic

noun

e

ɪ

c

k

l

i

ɪ

p

t

i

ɪ

c

k

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

parallax

noun

p

a

ɛ

r

a

ə

ll

l

a

æ

x

ks

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

supernova

noun

s

u

p

e

ɜ

r

n

o

oʊ

v

a

ə

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

Grammatical Information:

Plural form

supernovae

pulsar

noun

p

u

ʊ

l

s

a

ɜ

r

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

troposphere

noun

t

r

o

ɑ:

p

o

ə

s

ph

f

e

ɪ

r

e

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

stratosphere

noun

s

t

r

a

æ

t

o

ə

s

ph

f

e

ɪ

r

e

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

mesosphere

noun

m

e

ɛ

s

o

ə

s

ph

f

e

ɪ

r

e

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

thermosphere

noun

th

θ

e

ɜ

r

m

o

oʊ

s

ph

f

e

ɪ

r

e

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

ionosphere

noun

io

aɪɑ

n

o

ɔ

s

ph

f

e

i

r

e

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

exosphere

noun

e

ɛ

x

ks

o

oʊ

s

ph

f

e

ɪ

r

e

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

magnetosphere

noun

m

a

æ

g

n

e

ɪ

t

o

ɑ:

s

ph

f

e

ɪ

r

e

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

Congratulations! !

You learned 15 words from Talking about Astronomy. To improve learning and review vocabulary, start practicing.

Review

Flashcards

Spelling

Quiz