It depends what we call as “Planet.

1. If planet should support life, we only have Earth as a planet. No second planet. So sad :(
2. Planet should contain rings, Uranus becomes the second planet. Unfortunately, Earth doesn't have rings.
3. Make the mass limit high enough, only outer planets are now 'Planets’, Saturn being the second planet. And where do we live, probably on some rocky debris..
4. Should rotate anti-clockwise. Earth becomes the second planet.
5. Planet should have rocky surface. Venus bagged the second place. And what about the outer ones, keeping them spare for some other use…
6. We want planets to be blue: Earth Uranus and Neptune are the only planets.

These are some of the weird conditions that you may consider and count the number of planets remaining. Have a fun day

According to the mordern definition of planet, we have 8 planets in our solar system. Venus is the second closest planet to our Sun.

Enjoy your day :)