Pluto (ansisit a planeta)
From Wikipedia
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| Discovery | |||||||
| Discovered by | Clyde W. Tombaugh | ||||||
| Discovered on | February 18, 1930 | ||||||
| Orbital characteristics (Epoch J2000) | |||||||
| Semi-major axis | 5,906,376,272 km 39.481 686 77 AU |
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| Orbital circumference | 36.530 Tm 244.186 AU |
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| Eccentricity | 0.248 807 66 | ||||||
| Perihelion | 4,436,824,613 km 29.658 340 67 AU |
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| Aphelion | 7,375,927,931 km 49.305 032 87 AU |
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| Orbital period | 90,613.3055 d (248.09 a) | ||||||
| Synodic period | 366.73 d | ||||||
| Avg. Orbital Speed | 4.666 km/s | ||||||
| Max. Orbital Speed | 6.112 km/s | ||||||
| Min. Orbital Speed | 3.676 km/s | ||||||
| Inclination | 17.141 75° (11.88° to Sun's equator) |
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| Longitude of the ascending node |
110.303 47° | ||||||
| Argument of the perihelion |
113.763 29° | ||||||
| Number of satellites | 3 | ||||||
| Physical characteristics | |||||||
| Diameter | 2390 km (0.188 Earths or 1,485 miles) |
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| Surface area | 1.795×107 km2 (0.033 Earths) |
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| Volume | 7.15×109 km3 (0.0066 Earths) |
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| Mass | 1.25×1022 kg (0.0021 Earths) |
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| Mean density | 1.750 g/cm3 | ||||||
| Equatorial gravity | 0.58 m/s2 (0.059 gee) |
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| Escape velocity | 1.2 km/s | ||||||
| Rotation period | 6.387 d (6 d 9 h 17.6 min) | ||||||
| Rotation velocity | 47.18 km/h (at the equator) | ||||||
| Axial tilt | 122.54° (to orbit) 115.60° (to the ecliptic)[1] |
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| Right ascension of North pole |
133.02° (8 h 52 min 5 s) | ||||||
| Declination | -9.09° | ||||||
| Albedo | 0.30 | ||||||
| Surface temp. |
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| Adjective | Plutonian | ||||||
| Atmospheric characteristics | |||||||
| Atmospheric pressure | 0.30 pascals (summer maximum) | ||||||
| Composition | nitrogen, methane | ||||||
Ti Pluto, sigud a maibilang a planeta, ket maysa nga ansisit a planeta iti Sistema a Solar.
| Ti Sistema a Solar |
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| Bituen: Ti Init |
| Dagiti Planeta: Mercurio | Venus | Daga | Mars | Jupiter | Saturno | Uranus | Neptuno |
| Dagiti ansisit a planeta: Ceres - Pluto - Eris |
| Babassit a bagbagi: Dagiti asteroid - Dagiti centaurs - TNOs - Dagiti kometa - Dagiti layap |
| Dagiti satellite: Terran - Martian - Jovian - Saturnian - Uranian - Neptunian |
| Populations: Barikes nga Asteroid - Barikes a Kuiper - Naiwaris a disc - Ulep nga Oort |
| Kitaen met dagiti astronomical a bambanag ken ti listaan ti bambanag ti sistema a solar a naurnos babaen ti radius wenno ti mass. |
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Daytoy nga articulo ket maysa a pangted. Makatulongka iti Wikipedia babaen ti panangnayon wenno panangtarimaan iti daytoy nga articulo. |
