Massa Telluris
Massa terrestris, vel massa Telluris (M🜨, ubi 🜨 est signum astronomicum pro Terra), est astronomica massae unitas quae circiter 6×1024 kg aequat.
Solet saepe eligi ad massam aliorum planetarum indicandam, sive systematis solaris seu systematum extrasolarium. Hodierna optima aestimatio massae telluris est M🜨 = 5.9722×1024 kg, relativa incertitudine 10−4.
Medie aequalis est densitati 5515 kg/m3. Idoneo praefixo metrico dicta, massa Telluris est circiter sex ronnagrammatum, vel 6 Rg.
Una massa Solis (M☉) est fere 333 000 massarum Telluris. Una massa Lunae (M☾) est circiter 1.2% massarum Telluris. Systema Terra–Luna est fere 6.0456×1024 kg.
Nexus interni
Notae
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