Mercury Today · About Us · Advertising · Comments Friday, November 16, 2012    
 

Advertisement
spacer
Home | Introduction - Quick Facts - Multimedia - News

SpaceRef | SpaceRef Europe - Mars Today - Saturn Today

Mercury Quick Facts

spacer spacer spacer
Discovered By
spacer
Known by the Ancients
spacer spacer spacer
Date of Discovery
spacer
Unknown
spacer spacer spacer
Average Distance from the Sun
spacer
Metric: 57,909,175 km
English: 35,983,095 miles
Scientific Notation: 5.7909175 x 107 km (0.38709893 A.U.)
By Comparison: Earth is 1 A.U. (Astronomical Unit) from the Sun.
spacer spacer spacer
Perihelion (closest)
spacer
Metric: 46,000,000 km
English: 28,580,000 miles
Scientific Notation: 4.600 x 107 km (0.3075 A.U.)
By Comparison: 0.313 x Earth
spacer spacer spacer
Aphelion (farthest)
spacer
Metric: 69,820,000 km
English: 43,380,000 miles
Scientific Notation: 6.982 x 107 km (0.4667 A.U.)
By Comparison: 0.459 x Earth
spacer spacer spacer
Equatorial Radius
spacer
Metric: 2,439.7 km
English: 1,516.0 miles
Scientific Notation: 2.4397 x 103 km
By Comparison: 0.3825 x Earth
spacer spacer spacer
Equatorial Circumference
spacer
Metric: 15,329.1 km
English: 9,525.1 miles
Scientific Notation: 1.53291 x 104 km
spacer spacer spacer
Volume
spacer
Metric: 60,827,200,000 km3
English: 14,593,200,000 mi3
Scientific Notation: 6.08272 x 1010 km3
By Comparison: 0.054 x Earth's
spacer spacer spacer
Mass
spacer
Metric: 330,220,000,000,000,000,000,000 kg
Scientific Notation: 3.3022 x 1023 kg
By Comparison: 0.055 x Earth's
spacer spacer spacer
Density
spacer
Metric: 5.427 g/cm3
By Comparison: 0.984 x Earth
spacer spacer spacer
Surface Area
spacer
Metric: 74,800,000 km2
English: 28,900,000 square miles
Scientific Notation: 7.48 x 107 km2
By Comparison: 0.108 x Earth
spacer spacer spacer
Equatorial Surface Gravity
spacer
Metric: 3.7 m/s2
English: 12.1 ft/s2
By Comparison: If you weigh 100 pounds on Earth, you would weigh 38 pounds on Mercury.
spacer spacer spacer
Escape Velocity
spacer
Metric: 15,300 km/h
English: 9,500 mph
Scientific Notation: 4.25 x 103 m/s
By Comparison: Escape Velocity of Earth is 25,022 mph
spacer spacer spacer
Sidereal Rotation Period (Length of Day)
spacer
58.646 Earth days
1407.5 hours
By Comparison: 58.81 x Earth
spacer spacer spacer
Sidereal Orbit Period (Length of Year)
spacer
0.241 Earth years
87.97 Earth days
By Comparison: 0.241 x Earth
spacer spacer spacer
Mean Orbit Velocity
spacer
Metric: 172,341 km/h
English: 107,088 mph
Scientific Notation: 47,872.5 m/s
By Comparison: 1.61 x Earth
spacer spacer spacer
Orbital Eccentricity
spacer
0.20563069
By Comparison: 12.3 x Earth
spacer spacer spacer
Orbital Inclination to Ecliptic
spacer
7 degrees
spacer spacer spacer
Equatorial Inclination to Orbit
spacer
0 degrees
By Comparison: Earth's equatorial inclination to orbit is 23.45 degrees.
spacer spacer spacer
Orbital Circumference
spacer
Metric: 356,000,000 km
English: 221,000,000 miles
Scientific Notation: 3.56 x 108 km
By Comparison: 0.385 x Earth
spacer spacer spacer
Minimum/Maximum Surface Temperature
spacer
Metric: -173/427 °C
English: -279/801 °F
Scientific Notation: 100/700 K
By Comparison: Earth's temperature range is ~ 185/331 K.
spacer spacer spacer
Atmospheric Constituents
spacer
By Comparison: Earth's atmosphere consists mostly of N2, O2
spacer spacer spacer

Source: NASA

Read a Newsletter Sample

spacer

Mercury Today Home | Introduction - Quick Facts - Multimedia - News

Other SpaceRef Sites: SpaceRef - SpaceRef Asia - SpaceRef Canada - SpaceRef Europe - Moon Today
Mars Today - Mars TV - Jupiter Today - Saturn Today - Astrobiology - Space Wire - Space Elevator - Nano2Sol

Copyright © 1999-2012 SpaceRef Interactive Inc. All rights reserved. Privacy Policy
gipoco.com is neither affiliated with the authors of this page nor responsible for its contents. This is a safe-cache copy of the original web site.