4 Vesta has, at its brightest, a visual magnitude of about 5.1. This is visible to the naked eye under good seeing conditions, if you know exactly where to look.
2 Pallas at its brightest is a little brighter than 6.5, which makes it maybe visible to people with very goodeyesight under exceptional seeing conditions.
yes
There is no such thing as asteroid showers, perhaps you mean meteor showers.
No. You need a telescope to see Titan.
The nebula that can be seen without a telescope is the Great Orion nebula.
Yes.
yes
No. No. You need a telescope to see Neptune.Nope... Neptune cannot be seen from the Earth without a telescope.
No. No. You need a telescope to see Neptune.Nope... Neptune cannot be seen from the Earth without a telescope.
There is no such thing as asteroid showers, perhaps you mean meteor showers.
Mercury can be seen with or without a telescope, depending on the conditions.
This outer planet can be seen from earth without the aid of a telescope.
Yes, Mars can be seen at night without a telescope. It's a "naked eye object".
No. You need a telescope to see Titan.
The nebula that can be seen without a telescope is the Great Orion nebula.
Earth can easily be seen without a telescope, simply look close to your feet, you are standing on it. Earth is the planet that we live on.
Yes. It can also be seen without one.
Not without a telescope and detailed knowledge of where to look. They're tiny and not close to Earth.