It is our pleasure to invite you to Workshop on Precision Physics and Fundamental Physical Constants, which is organized by The Central Astronomical Observatory of the Russian Academy of Sciences at Pulkovo, the Russian working group on Fundamental constants, Bogolyubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research (JINR), Dubna. The Workshop will be held in St. Petersburg from October 7 until October 11, 2013. ... fundamental constants of modern physics . ...

... Try my Physical Calculator . It is a JavaScript calculator with all of the constants below programmed into it. (converted to CGS units from the NIST Constant Index ) . ... CGS Units . ... Planck constant . ... erg s . 0.60 . ... Gravitational constant . ... Mass of electron . ... Boltzmann constant . ... Radiation density constant . ... Stefan-Boltzmann constant . ... Fine structure constant . ... Fundamental Physical Constants (SI) . Fundamental Physical Constants (SI with errors) . ...

spaceweb@oulu.fi - last update: 23 November 1998, 1700 UT (RR) . ... Planck's constant . ... Boltzmann's constant . ... Gravitational constant . ... Charge of proton . ... Rest mass of proton . ... Rest mass of electron . ... Rest mass of neutron . ... Proton/electron mass ratio . ... Unified atomic mass unit . ... Classical electron radius . ... 6.022 в 10 23 mol -1 . ... 22.4 в 10 -3 m 3 /mol . Gas constant . ... The 1986 CODATA Recommended Values of the Fundamental Physical Constants . ...

... The constants and conversion factors are defined here as double precision values. ... flt_min the minimum single precision floating point number , excluding denormalised numbers minfloat the minimum single precision floating point number , including denormalised numbers dbl_min the minimum double precision floating point number , excluding denormalised numbers mindouble the minimum double precision floating point number , including denormalised numbers flt_max the maximum ...

... Mass . ... Charge . ... Constants . ... Euler's constant: = 0.5772156649 . ... Planck constant: h = 6.62620 ? ... Elementary charge: e = 1.602189 ? ... Universal gas constant: R = 8.31441 J mol -1 K -1 . Boltzmann's constant: k = R/N 0 = 1.380662 ? ... Gravitation constant: G = 6.6742 ? ... Solar radius: R = 6.9599 ? ... Solar mass: M = 1.989 ? ... 1 statute mile = 5280 ft = 1609 m . ... 1 solar mass (M ) = 1.989 ? ... 1 elementary charge (e) = 1.602189 ? ... Copyright 2006 Mario van den Ancker. ...

... 1 erg = 0.1 microjoules . 1 Jansky = 10**-26 watts per metre square per hertz . 1 Angstrom = 0.1 nanometres . ... 1 Astronomical unit = 1.4960 times 10**11 m . ... Mass of Sun = 1.989 times 10**30 kg . ... Mass of the Earth = 5.976 times 10**24 kg . Mass of Jupiter = 318 times mass of Earth . Solar constant = 1.37 kW per metre . c= 3 times 10**8 metres per second . ... Mass of Proton = 1836.1 times mass of electron . ... Stefan Boltzmann constant = 5.67 times 10**-8 W m**-2 K**-4 . ...

... It has been largely superceded by MatWeb . Conversion Factors . Material properties . Physical constants . Astronomical constants . This table gives conversion factors to convert various units to their SI equivalents. ... The units are SI. This is a short list of physical constants in SI units. ... Boltzmann constant . ... Gas constant . ... Mass . ... Plank's . ... Radiation constant . ... This is a short list of astronomical constants in SI units. ... Sun . ...

. Chairs . Teachers . Postgraduate Students . Undergraduate Students . Courses . Head: A.M.Cherepaschuk . Vice-Head: A.C.Rastorguev . Webmaster: Yuri V. Pakhomov . pakhomov@sai.msu.su

... Contents . ... Sidereal time . ... Ephemeris of the Sun . ... Rectangular equatorial coordinates of the Sun (J2000.0) . ... Aberration, parallax, mean longitude of the Sun, obliquity of the ecliptic, nutation in obliquity . ... Mean longitude of the Moon, mean elements of the Moon's orbit and equator . ... Ephemeris of Venus . ... Ephemeris for physical observations of the Sun . ... Ephemeris for physical observations of the Moon . ... Conversion of mean time to sidereal time (with accuracy 0.01 s )...