How are we supposed to know ?? That's like a billon years ago ! Ugh
http://www.melevsreef.com/index.html This is a good starting point.
Alienware,Acer,and Homemade, as in you build it are probably a good starting point
Hundreds of them. Who was first? Probably Galileo. We have no record of anyone point his new telescope at the skies before him. Probably SOMEBODY did; the telescope had been invented 5 years or so before Galileo got his first one, but nobody wrote about it.
You can put cash in homemade items. Most people's point of homemade items is that they do not spend a lot of money on them.
1620
The Earth is definitely the #1 easiest. Next in line would be Mercury, Venus, Mars, Jupiter, and Saturn. Each of those is visible without a telescope, so you'd know exactly where to point your telescope by seeing the planet with your eye first. The brightest planet that you do need a telescope to see is Uranus. So you definitely won't miss it when you're pointed at it, but you need to know where to point.
The Earth is definitely the #1 easiest. Next in line would be Venus, Mars, Jupiter, Saturn, and Mercury. Each of those is visible without a telescope, so you'd know exactly where to point your telescope by seeing the planet with your eye first. The brightest planet that you do need a telescope to see is Uranus. So you definitely won't miss it when you're pointed at it, but you need to know where to point.
yes it was build first until we came.
A reflecting telescope.
A telescope in space will have no interference from the atmosphere.
It refracts (bends) light into a focal point
A telescope eyepiece usually has 2 lenses in an astronomical telescope, and it is designed to give a magnified view of the virtual image produced at the focal point of the main lens.