observation methods articles
How do astronomers know the Sun rotates?
Which instrument is used to observe the sky?
Which of the following describes the transit method?
What do Hubble's cameras observe in the universe?
Why can it be difficult for astronomers to make observations of distant galaxies?
In which of the following cases would the transit method be used?
What is the method by which the rate of rotation of a galaxy is calculated?
What were Percival Lowell's observations on Mars?
What did Giovanni Schiaparelli observe on Mars?
How did Lowell interpret the canals and vegetation he observed on Mars?
Who observed the supernova?
