They could tell by the moon and stars and saw a pattern.
it allowed astronomers to see clearer images without distorted or lost colors.
it allowed astronomers to see clearer images without distorted or lost colors.
If they have been observing at night, yes - rather like shift workers. However most astronomers no longer observe directly but use cameras that are much more sensitive than the human eye to obtain their telescope data. This allows telescopes to be automated and the data save so that astronomers can analyse it during the day without having to visit the telescope. These astronomers work normal hours and only a few are needed to man the telescopes (a task which may also be done remotely).
Invented during the course of the 17th century and still undergoing new improvements and revisions, the telescope is one of the most remarkable and helpful inventions yet devised. In just its astronomical usages, the telescope has enlarged humankind's understand of the world in a revolutionary way. It may safely be said that, without the telescope, there would have been no modern age: humanity would still be unaware of the real nature of life outside of Earth.
no they can not
it allowed astronomers to see clearer images without distorted or lost colors.
it allowed astronomers to see clearer images without distorted or lost colors.
If they have been observing at night, yes - rather like shift workers. However most astronomers no longer observe directly but use cameras that are much more sensitive than the human eye to obtain their telescope data. This allows telescopes to be automated and the data save so that astronomers can analyse it during the day without having to visit the telescope. These astronomers work normal hours and only a few are needed to man the telescopes (a task which may also be done remotely).
No. Approximately 6000 stars can be seen with the naked eye, but there are many trillions of star out there that we can NOT see with the naked eye. Even the closest star after the Sun - Proxima Centauri - can't be seen without telescopes.
It allows observation of distant objects without the diffraction spikes caused by the support devices used in most multiple mirror telescopes. More detail can usually be made out.
Bang for the buck. When you need to collect a lot of light to see faintcelestial objects clearly, a large mirror is cheaper and easier to manufacture without defects than asimilarly sized refracting lens.
Light enters space telescope without distortion from Earth's atmosphere
refracting telescopes
Not without their spaceship.
Invented during the course of the 17th century and still undergoing new improvements and revisions, the telescope is one of the most remarkable and helpful inventions yet devised. In just its astronomical usages, the telescope has enlarged humankind's understand of the world in a revolutionary way. It may safely be said that, without the telescope, there would have been no modern age: humanity would still be unaware of the real nature of life outside of Earth.
no they can not
There is no reason you 'should' care about astronomy, and you can live yourentire life perfectly well without ever even knowing what astronomy is. But ifyou're curious at all, and you ever wonder about anything you see in the skyat night, then astronomy is the way to go, to get answers to your questions.