Planck mass concept from the Astronomy knowledge base

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Planck mass
(m_P)

subject fact

Planck mass has symbol m_P 2001-09-27 09:33:01.0
has value 2.1767 × 10^-8 kg has URL: http://physics.nist.gov/cgi-bin/cuu/Value?eqplkm, 2001-09-27 09:33:01.0
has equation 2001-09-27 09:33:00.0
has uncertainty 0.0016 × 10^-8 kg
has definition About ten billion billion times the mass of a proton; about one-hundredth of a thousandth of a gram; about the mass of a small grain of dust. The typical mass equivalent of a vibrating string in string theory. has source: Greene, B. 1999 The Elegant Universe, W.W. Norton and Co., New York, 2001-09-27 09:33:01.0
is an instance of universal constant
is an instance of mass

mass has unit mass unit 2001-09-27 09:33:14.0

fundamental physical constant has accuracy 2001-09-27 09:32:59.0

Planck mass	has symbol m_P
	has value 2.1767 × 10^-8 kg
	has equation
	has uncertainty 0.0016 × 10^-8 kg
	has definition About ten billion billion times the mass of a proton; about one-hundredth of a thousandth of a gram; about the mass of a small grain of dust. The typical mass equivalent of a vibrating string in string theory.
	is an instance of universal constant
	is an instance of mass
mass	has unit mass unit
fundamental physical constant	has accuracy