Categories: General Studies

The Smallest Planet In Our Solar System, Check Complete Details

Smallest Planet in our Solar System

Mercury, among the diverse celestial bodies in our solar system, captures attention as the most intriguing due to its diminutive size. With a primary radius of only 2,440 kilometers, Mercury holds the distinction of being the smallest planet in our solar system. This article will explore the unique characteristics that make Mercury an exceptional planetary companion.

Mercury’s Quick Orbit

One of Mercury’s most fascinating features is its rapid orbit around the Sun. Completing its journey in just 87.97 Earth days, it is the quickest of all the planets in the solar system. This proximity to the Sun gives Mercury its reputation as the “hot” planet, but it is more than just its speed that sets it apart.

A Stony and Cratered World

Mercury is classified as a terrestrial planet, much like Earth. Its surface is solid and heavily created, resembling the lunar landscape. The impact craters on Mercury tell a story of countless collisions with space debris over billions of years, giving this small planet a rugged, sacred appearance.

Formation and History

Mercury’s history is intertwined with the formation of our solar system. It came into existence around 4.5 billion years ago when gravity caused the swirling gas and dust in the early solar system to coalesce into a small, rocky world. This planetary dance eventually led to Earth becoming the third planet from the Sun, while Mercury became the closest.

A Planet of Extremes

Mercury’s proximity to the Sun results in extreme temperature variations. During the day, surface temperatures can soar to scorching levels, while at night, they plummet to frigid lows. This stark contrast between day and night is due to the planet’s lack of a significant atmosphere to retain heat.

Key Points related to Mercury, the Smallest Planet

The following are the most important pointers that will help you understand everything about Mercury.

  • Distance from the Sun: 58 million km
  • Orbital period: 88 days
  • Length of day: 59d
  • Radius: 2,439.7 km
  • Gravity: 3.7m/s sq.
  • Mass: 3.285 x 10^23 kg
  • Surface Area: 74.8 million sq. km

Planets of Solar System with Their Radius

S. No. Planet Radius (in km) Radius (in mi)
1. Mercury 2,440 km 1,561 mi
2. Venus 6,052 km 3,760 mi
3. Earth 6,371 km 3,959 mi
4. Mars 3,390 km 2,106 mi
5. Jupiter 69,911 km 43,441 mi
6. Saturn 58,232 km 36,184 mi
7. Uranus 25,362 km 15,759 mi
8. Neptune 24,622 km 15,299 mi

 

Find More General Studies News Here

FAQs

Which is the smallest planet in our solar system?

With a primary radius of 2,440 kilometers, Mercury holds the distinction of being the smallest planet in our solar system.

Is Mercury smaller than the Moon?

Mercury, the smallest planet in our solar system and nearest to the Sun, is only slightly larger than Earth’s Moon.

Akansha Arora

My role as a content writer specializing in current affairs at Adda247 involves meticulously researching and crafting compelling articles aimed at guiding and informing candidates preparing for National and State Level Competitive Government Exams. With a dedication to educational excellence, I strive to keep our candidates abreast of the latest developments and trends in current affairs. By providing insightful and engaging content, I aim to ensure that aspiring candidates are well-prepared and informed for their examinations.

Recent Posts

Weekly Current Affairs One Liners (15th to 21st June, 2026)

Weekly Current Affairs One-Liners Current Affairs 2026 plays a very important role in competitive examinations…

11 hours ago

Yoga Day 2026: What Are the Eight Limbs of Yoga?

On June 21st every year millions of people celebrate International Yoga Day by practicing the…

11 hours ago

Father’s Day 2026: Date, History, Significance and Celebrations

On 21st June, millions of the people around the world celebrates Father’s Day by expressing…

12 hours ago

International Yoga Day 2026: Date, Theme, History, Importance and Celebrations

On 21st June, International Yoga Day observed and it will bring together the millions of…

13 hours ago

Current Affairs Capsule PDF (20 June 2026)

National News Supreme Court Declares Right to Walk Safely a Fundamental Right The Supreme Court…

1 day ago

Indian Coast Guard Inducts First Indigenous Hovercraft H-561

India has inducted its first homegrown hovercraft into the Indian Coast Guard. This newly inducted…

1 day ago