Other pages in this series (31)
Core constant
G · Newtonian constant of gravitation
뉴턴 중력 상수
Takeaway
- The relative standard uncertainty fell by a factor of about 21 from the 1969 to the 2022 edition (4.6×10⁻⁴ → 2.2×10⁻⁵): the error bars narrowed that much.
- Of 9 earlier editions with a measured value, 1 has the 2022 value outside ±1σ (the error bar) and 1 outside ±2σ (the bar doubled); the normal expectation is about 1 in 3 and 1 in 22.
- The largest move between editions came in 2014→2018, at 0.6 times the combined standard uncertainty of the two editions (|z| = 0.6).
- Unit
- m³ kg⁻¹ s⁻²
- Note
- —
- M1
- Half-life (years): 12.18 (7.12–42.21)
Value ±1σ by edition2022
| Editionyear of the recommended values (data cut-off) | As printedexactly as in the source table; digits in parentheses are the standard uncertainty in the last digits | Standard uncertaintyhalf-width of the error bar (±1σ) | Relative standard uncertaintystandard uncertainty ÷ |value|: bar width relative to the value | Exactfixed by definition, uncertainty zero | z vs previous editionmove from the previous edition ÷ combined standard uncertainty of the two | z vs 2022(2022 value − this value) ÷ this edition's standard uncertainty | Source locationpage and table of the paper, or file and line of NIST's table |
|---|---|---|---|---|---|---|---|
| 1969 | 6.6732(31) e-11 | 3.1×10⁻¹⁴ | 4.6×10⁻⁴ | 0.3548 | 478 table XXXII | ||
| 1973 | 6.6720(41) e-11 | 4.1×10⁻¹⁴ | 6.1×10⁻⁴ | −0.2335 | 0.5610 | 719 table 33.1 | |
| 1986 | 6.67259(85) e-11 | 8.5×10⁻¹⁵ | 1.3×10⁻⁴ | 0.1409 | 2.0118 | codata86 p.8 table 2 | |
| 1998 | 6.673(10) e-11 | 1.0×10⁻¹³ | 1.5×10⁻³ | 0.0409 | 0.1300 | 1998 ASCII:239 | |
| 2002 | 6.6742(10) e-11 | 1.0×10⁻¹⁴ | 1.5×10⁻⁴ | 0.1194 | 0.1000 | 2002 ASCII:240 | |
| 2006 | 6.674 28(67) e-11 | 6.7×10⁻¹⁵ | 1.0×10⁻⁴ | 0.0665 | 0.0299 | 2006 ASCII:241 | |
| 2010 | 6.673 84 e-11 | 8.0×10⁻¹⁵ | 1.2×10⁻⁴ | −0.4217 | 0.5750 | 2010 ASCII:254 | |
| 2014 | 6.674 08 e-11 | 3.1×10⁻¹⁵ | 4.6×10⁻⁵ | 0.2797 | 0.7097 | 2014 ASCII:254 | |
| 2018 | 6.674 30 e-11 | 1.5×10⁻¹⁵ | 2.2×10⁻⁵ | 0.6388 | 0.0000 | 2018 ASCII:263 | |
| 2022 | 6.674 30 e-11 | 1.5×10⁻¹⁵ | 2.2×10⁻⁵ | 0.0000 | 2022 ASCII:264 |