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Astronomy Vocabulary Set in IELTS Academic (Band 6-7): Full and Detailed List

The 'Astronomy' vocabulary set in 'IELTS Academic (Band 6-7)' is carefully selected from standard international textbook sources, helping you master vocabulary in a short time. Comprehensive compilation of definitions, illustrative examples, and standard pronunciation...

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comet

/ˈkɑː.mɪt/

Example:

Halley's Comet is one of the most famous comets.

meteor

/ˈmiː.t̬i.ɔːr/

Example:

We saw a bright meteor streak across the night sky.

asteroid

/ˈæs.tə.rɔɪd/

Example:

Scientists are tracking an asteroid that might pass close to Earth.

nebula

/ˈneb.jə.lə/

Example:

The Orion Nebula is a well-known star-forming region.

aurora

/ɔːˈrɔːr.ə/

constellation

/ˌkɑːn.stəˈleɪ.ʃən/

Example:

Orion is a prominent constellation visible in the winter sky.

zodiac

/ˈzoʊ.di.æk/

Example:

The astrologer consulted the zodiac to predict her future.

exoplanet

/ˈek.soʊˌplæn.ɪt/

Example:

Scientists have discovered thousands of exoplanets.

blueshift

/ˈbluː.ʃɪft/

Example:

The light from the approaching star showed a significant blueshift.

white dwarf

/waɪt dwɔːrf/

Example:

The Sun will eventually become a white dwarf after it sheds its outer layers.

cosmology

/kɑːzˈmɑː.lə.dʒi/

Example:

Modern cosmology is based on the Big Bang theory.

spectroscope

/ˈspek.trəˌskoʊp/

Example:

The astronomer used a spectroscope to analyze the chemical composition of the distant star.

unidentified flying object

/ˌʌn.aɪˈden.t̬ə.faɪd ˈflaɪ.ɪŋ ˈɑːb.dʒekt/

Example:

The pilot reported seeing an unidentified flying object over the desert.

space probe

/speɪs proʊb/

Example:

The space probe sent back high-resolution images of Mars.

cosmonaut

/ˈkɑːz.mə.nɑːt/

Example:

The cosmonaut orbited the Earth for several days.

radiation belt

/ˌreɪ.diˈeɪ.ʃən belt/

Example:

The Van Allen radiation belt protects the Earth from solar wind.

redshift

/ˈred.ʃɪft/

Example:

Astronomers use redshift to determine how fast a galaxy is receding from Earth.
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