for the astronomy crossword puzzle the answer is piece
Usually, by using your eye sight, optical telescope, or radio telescope.
Eye to the Telescope was created on 2004-12-13.
You could see Neptune from Earth with a telescope if you knew exactly where to look.
Uranus is barely visible to the naked eye on very dark nights, to those with good eye sight. Neptune requires a telescope to see.
The Hubble Space Telescope is the "Eye in the Sky."
Certainly, if it is within your field of vision and there is not too much light pollution.You can usually see it with the unaided eye, but not the rings.It depends how good the telescope is. :)
Neptune was discovered using a telescope.Uranus was discovered with the naked eye, but because of it's slow rotation it was believed to be a star. Only with a telescope was it identified as a planet.
Neptune is the only planet (including all dwarf planets) in our Solar System that cannot be seen with the naked eye. [See related question] Even with a telescope, it is difficult to see.
The naked eye is more portable, can be transported easily to remote locations, can be set up and ready for operation in less time than a telescope can, and it requires much less peripheral equipment and accessories to follow the motion of objects under observation, especially when the motions are unpredictable.
Telescopes can make it easy to see all the way into space, where as the human eye can not see very far at all.
You don't need a telescope to find Capricorn; it can easily be seen with the naked eye.
telescope