Can you see some planets with the naked eye?

Answer

Here is a slightly updated version of the answer given to this question earlier.

Of the planets in the solar system, five are quite visible to the naked eye.

Two are brighter than any star. Usually Venus is the brighter of the two. Venus is closer to the sun than we are, Jupiter further. That means if you see either of them deep into the night, it must be Jupiter, because deep into the night we are between the sun and the objects we see to the south. On the other hand, Venus can always be found quite close to the sun, after sunset or before sunrise. These days we can see Venus, as the brightest “star” in the sky, shortly after sunset in the southwest. Jupiter rises in the morning, and should be visible this summer.

The third easy one is Mars. Can be quite bright at times but is fainter at times. Still easy to distinguish because of the striking orange-red color. And you see them move relatively quickly from one week to the next. Will be visible for a long time next year.

Saturn is also easy to see with the unaided eye, but less easily distinguished from the bright stars. You have to know your starry sky to find them. Today, Saturn sits under the constellation Leo.

Most difficult of the five is Mercury. It is quite small and never gets very far from the Sun.

Actually, the planet Uranus is also visible to the naked eye, but just barely. You have to know where to look, and it has to be done in a dark place.

I don’t really understand what you mean by ‘with the naked eye with the telescope’. If you put your naked eye behind a telescope, you can of course see more. How much more depends of course on the quality of that telescope. Both Uranus, Neptune and Pluto were discovered by visual observers looking through a telescope.