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A078300 Decimal expansion of Planck length. 6
1, 6, 1, 6, 2, 2, 9 (list; constant; graph; refs; listen; history; text; internal format)



This value is subject to further revision in the future as it is dependent upon the value of G, the gravitational constant, and h, Planck's constant.

This value keeps changing, and so this sequence keeps changing. The previous version from 2012 was 1, 6, 1, 6, 1, 9, 9. - N. J. A. Sloane, Aug 18 2017

As a result of the Mohr et al. paper many other sequences in the OEIS will also need updating. - L. Edson Jeffery, Aug 18 2017


Table of n, a(n) for n=-34..-28.

John Baez, The Planck Length

Peter J. Mohr, David B. Newell, and Barry N. Taylor, CODATA recommended values of the fundamental physical constants: 2014, arXiv preprint arXiv:1507.07956 [physics.atom-ph], 2015; Rev. Mod. Phys. 88, 035009 (Published 26 September 2016).

NIST Physics Laboratory, Planck length

Eric Weisstein, World of Physics, Planck Length


Planck length = 1.616199(97) * 10^(-35) meters.


Cf. A003676, A078301, A078302.

Sequence in context: A096956 A326126 A176398 * A318478 A221210 A010492

Adjacent sequences:  A078297 A078298 A078299 * A078301 A078302 A078303




Robert G. Wilson v, Nov 21 2002


a(-38) corrected and a(-39) and a(-40) added by Omar E. Pol, Jan 05 2011

Updated to conform with CODATA 2010 recommended value by Raphie Frank, Dec 16 2012

Updated by N. J. A. Sloane, Aug 18 2017 based on an email from L. Edson Jeffery, Aug 14 2017



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Last modified October 22 08:00 EDT 2019. Contains 328315 sequences. (Running on oeis4.)