enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. List of gravitationally rounded objects of the Solar System

    en.wikipedia.org/wiki/List_of_gravitationally...

    According to the IAU's explicit count, there are eight planets in the Solar System; four terrestrial planets (Mercury, Venus, Earth, and Mars) and four giant planets, which can be divided further into two gas giants (Jupiter and Saturn) and two ice giants (Uranus and Neptune). When excluding the Sun, the four giant planets account for more than ...

  3. List of Solar System objects by size - Wikipedia

    en.wikipedia.org/wiki/List_of_Solar_System...

    Parts-per-million chart of the relative mass distribution of the Solar System, each cubelet denoting 2 × 10 24 kg. This article includes a list of the most massive known objects of the Solar System and partial lists of smaller objects by observed mean radius.

  4. List of Solar System extremes - Wikipedia

    en.wikipedia.org/wiki/List_of_Solar_System_extremes

    Highest Lowest Highest Lowest Highest Lowest Sun: N/A 5,000,000 K In a solar flare [33] 1240 K In a sunspot [34] Mercury: 3 kilometres (1.9 mi) Caloris Montes, northwest Caloris Basin rim mountains [35] [36] 723 K Dayside of Mercury [37] 89 K Permanently shaded polar craters [38] Venus: 11 kilometres (6.8 mi) Maxwell Montes, Ishtar Terra [39 ...

  5. Surface gravity - Wikipedia

    en.wikipedia.org/wiki/Surface_gravity

    A white dwarf's surface gravity is around 100,000 g (10 6 m/s 2) whilst the neutron star's compactness gives it a surface gravity of up to 7 × 10 12 m/s 2 with typical values of order 10 12 m/s 2 (that is more than 10 11 times that of Earth). One measure of such immense gravity is that neutron stars have an escape velocity of around 100,000 km ...

  6. Gravity of Earth - Wikipedia

    en.wikipedia.org/wiki/Gravity_of_Earth

    The gravity g′ at depth d is given by g′ = g(1 − d/R) where g is acceleration due to gravity on the surface of the Earth, d is depth and R is the radius of the Earth. If the density decreased linearly with increasing radius from a density ρ 0 at the center to ρ 1 at the surface, then ρ ( r ) = ρ 0 − ( ρ 0 − ρ 1 ) r / R , and the ...

  7. Gravitational acceleration - Wikipedia

    en.wikipedia.org/wiki/Gravitational_acceleration

    At a fixed point on the surface, the magnitude of Earth's gravity results from combined effect of gravitation and the centrifugal force from Earth's rotation. [2] [3] At different points on Earth's surface, the free fall acceleration ranges from 9.764 to 9.834 m/s 2 (32.03 to 32.26 ft/s 2), [4] depending on altitude, latitude, and longitude.

  8. Planetary mass - Wikipedia

    en.wikipedia.org/wiki/Planetary_mass

    The choice of solar mass, M ☉, as the basic unit for planetary mass comes directly from the calculations used to determine planetary mass.In the most precise case, that of the Earth itself, the mass is known in terms of solar masses to twelve significant figures: the same mass, in terms of kilograms or other Earth-based units, is only known to five significant figures, which is less than a ...

  9. List of exoplanet extremes - Wikipedia

    en.wikipedia.org/wiki/List_of_exoplanet_extremes

    The planets in the Kepler-444 system have radii of 0.4, 0.497, 0.53, 0.546 and 0.741 Earth radii, respectively. Due to their size and proximity to Kepler-444, these must be rocky planets, with masses close to that of Mars. For comparison, Mars has a mass of 0.105 Earth masses and a radius of 0.53 Earth radii. System with largest total planetary ...