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Earth
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  Source credit: NASA

Earth: Goldilocks Planet

Earth is the third planet of our solar system. It has one natural moon, 5 natural quasi-satellites, one space station (ISS), a couple dozen space telescopes, and over 3,000 operational artificial satellites (Starlink, OneWeb, Iridium, GPS, etc.) that orbit around it. Earth is the densest planet (and object) in the solar system.

Earth Facts
      1. Mass (kg)
      2. 5.976e+24
      1. Radius (km)
      2. 6,378.14
      1. Density (gm/cm3)
      2. 5.515
      1. Distance from sun (km)
      2. 149,600,000
      1. Rotational period (days)
      2. 23.9345
      1. Orbital period (days)
      2. 365.256
      1. Orbital velocity (km/sec)
      2. 29.79
      1. Eccentricity of orbit
      2. 0.0167
      1. Tilt of axis (°)
      2. 23.45
      1. Inclination of orbit (°)
      2. 0.000
      1. Surface gravity (m/sec2)
      2. 9.78
      1. Escape velocity (km/sec)
      2. 11.18
      1. Albedo
      2. 0.37
      1. Magnitude
      2. -1.9
      1. Surface temperature
      2. 482°C
      1. Atmosphere
      2. N2=77%, O2=21%
      1. Moons
      2. 1


    Earth Surface Map

    Earth surface map



    Earth vs. Moon Ratios


    diameter = 1
    gravity = 1
    radiation = 1
    surface pressure = 1
    solar irradiance = 1
    day = 1
      
    diameter = 0.27
    gravity = 0.17
    radiation = 45
    surface pressure = 0
    solar irradiance = 1
    day = 29.5




    Earth vs. Sun Ratios


    diameter = 1
    gravity = 1
    day = 1
      
    diameter = 109
    gravity = 27.9
    day = 24.5




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