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数量级 (密度)

密度小于103kg/m3的数量级列表
因数 单位 事物
10-27 1 yoctogram (yg)/m³ 1 × 10-27 kg/m³ 宇宙的平均密度
10-24 1 zeptogram (zg)/m³
10-22 100 zg/m³ 1 × 10-22 kg/m³ 已知銀河系螺旋臂之最低密度 (每16立方厘米一氢原子)
10-21 1 attogram (ag)/m³
10-20
10-19
10-18 1 femtogram (fg)/m³ 1 × 10-18 kg/m³ 星系中心的密度 (每立方厘米600氢原子);
实验室能获得的最低压强 (1 pPa)
10-17 10 fg/m³
10-16
10-15 1 picogram (pg)/m³
10-14 2.0 × 10−14 kg/m3 (2.0 × 10−17 g/cm3) 太阳日冕密度[1]
10-13 1.0 × 10−13 kg/m3 (1.0 × 10−16 g/cm3) 太阳過渡區顶部密度[1]
10-12 1 nanogram (ng)/m³
10-11 1.0 × 10−11 kg/m3 (1.0 × 10−14 g/cm3) 太阳過渡區底部密度[1]
10-10
10-9 1 microgram (μg)/m³
10-8
10-7
10-6 1 milligram (mg)/m³
10-5 1.34 × 10-5 kg/m³ 距离地球82千米处
10−4 0.1 g/m3 1.09 × 10−4 kg/m3 距离地球68千米处
2.0 × 10−4 kg/m3 (2.0 × 10−7 g⋅cm−3) 太阳光球色球层边界的密度[1]
4.0 × 10−4 kg/m3 (4.0 × 10−7 g⋅cm−3) 太阳光球层的下边界密度[1]
10-3 1 gram (g)/m³ 1 gram (g)/m³ 商业用真空泵所能获得最低压强;太阳光球层以下边界密度[1]
10-2 10 gram (g)/m³ 1.35 × 10-2 kg/m³ 距离地球32千米处
1.8 × 10−2 kg/m3 距离地球30千米处[2]
9 × 10−2 kg/m3、 90 g/m³ 氢气标准温度和壓力下的最低密度物质
10-1 1.6 × 10-1 kg/m3 距离地球16千米处


密度大于等于103kg/m3的数量级的列表
因数 单位 事物
100 1 kilogram (kg)/m³ 0.9 kg/m3 = 0.0009 g/cm3 超轻金属迷你网格。[3]
1.1 kg/m3 = 0.0011 g/cm3 气凝胶已实现的最低密度[4]
1.48 kg/m³ 海平面处的大气
3 kg/m³ 气凝胶的平均密度
101 10 kg/m3 10 kg/m3 = 0.01 g/cm3 标准的气凝胶的密度 [4]
65 kg/m3 = 0.065 g/cm3 金星表面的大气密度[5]
102 945 kg/m³ 吸气后的
985 kg/m³ 正常人体
103 1 megagram (Mg)/m³
1 tonne (t)/m³
1000 kg/m³ 4摄氏度
1025 kg/m³ 呼气后的人体
1408 kg/m3 = 1.408 g/cm3 太阳平均密度
5515 kg/m3 = 5.515 g/cm3 地球平均密度
104 10000 kg/m³ 10490 kg/m³
11340 kg/m³
22650 kg/m³ , 测量标准状态的密度
104 10000 kg/m³ 22661 kg/m³
105 100000 kg/m³ 150,000 kg/m³ 太阳的核心
106 1000000 kg/m³ 106 1 亿万克 (Gg)/m³
107
108
109 1 teragram (Tg)/m³ 白矮星
1010
1011
1012 1 petagram (Pg)/m³
1013 1 × 1013 kg/m³ 2 × 1013 kg/m³ 宇宙大爆炸電弱時期
1014
1015 1 exagram (Eg)/m³
1016
1017 2 × 1017 kg/m³ 原子核中子星
1018 1 zettagram (Zm)/m³
1019
1020
1021 1 yottagram (Yg)/m³
1023 1023 kg/m3 理论上的先子星密度 (见致密星
1096 5.1 × 1096 kg/m³ 普朗克密度
∞ kg/m3 引力奇点[6]

參考文獻

[编辑]
  1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 SP-402 A New Sun: The Solar Results From Skylab. [2015-03-19]. (原始内容存档于2004-11-18). 
  2. ^ AtmosModeler Simulator - Version 1.2a. NASA. [22 January 2012]. (原始内容存档于2021-03-20). 
  3. ^ Ultralight Metallic Microlattices. [2015-03-21]. (原始内容存档于2015-12-07). 
  4. ^ 4.0 4.1 What is Aerogel?. Aerogel.org. [13 May 2012]. (原始内容存档于2021-01-11). low as 0.0011 g cm-3 ... Typically, ... from 0.5 to 0.01 g cm-3 
  5. ^ Williams, David R. Venus Fact Sheet. NASA. 2010-11-17 [2012-05-13]. (原始内容存档于2016-03-10). Surface density: ~65. kg/m3 
  6. ^ Mastin, Luke. Singularities [奇点]. Black Holes and Wormholes. The Physics of the Universe. 2009 [2014-12-24]. (原始内容存档于2017-12-23). 
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数量级 (密度)
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