# Fast-Track Facts about the Planets of the Solar System

Essential data on planet order, size, classification, and satellites for geography and science preparation.

Canonical: https://gyanudaan.com/blog/fast-track-facts-about-the-planets-of-the-solar-system/
Language: en
Author: GyanUdaan Team
Published: 2026-04-07T00:00:00.000Z
Updated: 2026-04-07T00:00:00.000Z

## Introduction
Understanding the solar system is a key component of the general knowledge section in Loksewa exams. This guide provides a fast-track comparison of planets based on distance, size, and other physical properties.

## Main Content
### Order by Distance from the Sun (Nearest to Farthest)
| Order | Planet Name |
|---|---|
| 1 | Mercury |
| 2 | Venus |
| 3 | Earth |
| 4 | Mars |
| 5 | Jupiter |
| 6 | Saturn |
| 7 | Uranus |
| 8 | Neptune |

### Order by Size (Largest to Smallest)
| Order | Planet Name | Category |
|---|---|---|
| 1 | Jupiter | Largest |
| 2 | Saturn | Second Largest |
| 3 | Uranus | Third Largest |
| 4 | Neptune | Fourth Largest |
| 5 | Earth | Fifth Largest |
| 6 | Venus | Sixth Largest |
| 7 | Mars | Seventh Largest |
| 8 | Mercury | Smallest |

### Comparative Details
| Basis | Description | Planets / Info |
|---|---|---|
| Inner Planets | Terrestrial (Rocky) | Mercury, Venus, Earth, Mars |
| Outer Planets | Jovian (Gas/Ice) | Jupiter, Saturn, Uranus, Neptune |
| No Satellites | No Moons | Mercury and Venus |
| Most Satellites | Highest Moon Count | Saturn (146 satellites) |
| Longest Year | Longest Orbit | Neptune (approx. 165 Earth years) |

## Key Takeaways
- Jupiter is the largest planet, while Mercury is the smallest.
- Saturn currently holds the record for the most satellites (146).
- Mercury and Venus are the only planets in our solar system without any moons.
- Neptune has the longest orbital period, taking about 165 Earth years to orbit the Sun.

## What to Avoid
- Do not confuse the order of planets by distance with their order by size (e.g., Earth is 3rd by distance but 5th by size).
- Do not mistake the inner planets (rocky) for the outer planets (gas giants).
- Avoid using outdated satellite counts; Saturn is currently recognized with 146 satellites.

## FAQ
**Q1: Which planet is the smallest in the solar system?**
Mercury is the smallest planet in the solar system.

**Q2: Which planets do not have any satellites?**
Mercury and Venus do not have any satellites (moons).

**Q3: Which planet has the most satellites?**
Saturn has the most satellites, with a total of 146.

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