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Quiz "astronomy: terms used in astronomy"

astronomy: terms used in astronomy

the lowest atmospheric layer, about 18 kilometres (11 miles) thick at the equator to about 6 km (4 miles) at the Poles, in which air temperature decreases normally with height at about 6.5°C per km

astronomy: terms used in astronomy

a spiked ejection of hot gas occurring over 5000 kilometres above the sun's surface (in its atmosphere) and having a diameter of about 1000 kilometres

astronomy: terms used in astronomy

a north or positive declination

astronomy: terms used in astronomy

a filled-centre supernova remnant in which radiation is emitted by the centre as well as the shell

astronomy: terms used in astronomy

the position of a planet or the moon when it is in line with the sun as seen from the earth. The inner planets are in inferior conjunction when the planet is between the earth and the sun and in superior conjunction when the sun lies between the earth and the planet
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