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11 sty 2024 · Pluto Atmosphere. Surface Pressure: ~13 microbar Surface temperature: 24 - 38 K (-247 - -233 C) Scale height: ~18 km lower atmosphere, ~50 km above 30 km Mean molecular weight: ~28 Atmospheric composition: 99% Nitrogen (N 2), 0.5% Methane (CH 4), 0.05% Carbon Monoxide (CO), trace HCN, C 2 H x hydrocarbons.
- Pluto
General Information. Pluto Fact Sheet; Reference Books on...
- Notes on the Factsheets
Gravitational Constant (G) - Relates gravitational force to...
- Planetary Fact Sheets
Pluto Fact Sheet. Comet Fact Sheet. Solar System Small...
- Pluto
This page shows Pluto location and other relevant astronomical data in real time. The celestial coordinates, magnitude, distances and speed are updated in real time and are computed using high quality data sets provided by the JPL Horizons ephemeris service (see acknowledgements for details).
4 paź 2021 · The rate at which the star disappeared and reappeared determined the density profile of Pluto’s atmosphere.
Mean Density: Density computed using the volume of a sphere with the specified mean radius and mass (derived from GM) of the planet.
18 mar 2016 · Pluto's small size and low mass mean that it has a density of 1.86 grams per cubic centimeter according to recent measurements by New Horizons, about 40 percent of Earth's density.
13 lip 2015 · Pluto’s newly estimated size means that its density is slightly lower than previously thought, and the fraction of ice in its interior is slightly higher. Also, the lowest layer of Pluto’s atmosphere, called the troposphere, is shallower than previously believed.
15 wrz 1988 · The mean density of the Pluto-Charon system is now accurately known at 1.99±0.09 g cm–3 (With formal errors five times smaller)1, through observations of total occultations and transits2.
