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Parts of planets and stars

axis

noun

an imaginary line through the middle of an object such as a planet, round which it seems to spin

core

noun

the central part of a planet

corona

noun

the outer atmosphere of the Sun

crater

noun

a large round hole on the surface of a planet caused by a meteorite hitting the surface

magnitude

noun

the brightness of a star, shown as a number

sunspot

noun

a dark area on the surface of the sun

dark pool

a method of financial trading in which share prices are hidden and not openly available to the public

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dividend

a share of the profits of a company, paid once or twice a year to the people who own the...

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subtweet

to post a tweet, usually a negative one, that mentions a person without using the @ sign, so that they will not see the message on their Twitter feed …

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