Package uk.ac.starlink.util
Class PhysicalConstants
- java.lang.Object
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- uk.ac.starlink.util.PhysicalConstants
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public class PhysicalConstants extends java.lang.ObjectClass of physical and astronomical constants. Please add more and check accuracy.- Version:
- $Id$
- Author:
- Peter W. Draper
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Field Summary
Fields Modifier and Type Field Description static doubleACCEL_GRAVStandard acceleration of gravity on Earth m.s^-2static doubleAU1 Astronomical unit - mstatic doubleBOLTZMANNBoltzmann constant - J.K^-1static doubleELECTRON_MASSElectron mass - Kgstatic doubleELECTRON_VOLTElectron volt - Jstatic doubleFINE_STRUCTUREFine structure constant - unitlessstatic doubleGRAVITATIONGravitational constant - N.m^2.Kg^-2static doubleJANSKY1 Jansky - W.m^-2.Hz^-1static doubleLUMINOSITY_OF_SUNSolar Luminosity - Wstatic doubleMASS_OF_EARTHMass of the Earth - Kgstatic doubleMASS_OF_JUPITERMass of Jupiter - Kgstatic doubleMASS_OF_SUNMass of Sun - Kgstatic doublePARSEC1 Parsec - mstatic doublePLANCKPlanck constant - J.sstatic doublePLANCK_BARPlanck constant/2*PI - J.sstatic doublePLANCK_EVSPlanck constant - eV.sstatic doublePLANCK_EVS_BARPlanck constant/2*PI - eV.sstatic doublePLANCK_LENGTHPlanck length - mstatic doublePLANCK_MASSPlanck mass - Kgstatic doublePLANCK_TEMPPlanck temperature - Kstatic doublePROTON_MASSProton mass - Kgstatic doubleRADIUS_OF_SUNRadius of Sun - mstatic doubleRYDBERGRydberg constant - m^-1static doubleSOLAR_CONSTANTSolar constant - kW.m^-1static doubleSPEED_OF_LIGHTSpeed of light in a vacuum - m.s^-1static doubleSTEFAN_BOLTZMANNStefan-Boltzmann constant - W.m^-2.K^-4static doubleWAVE_HALPHAWavelength of H-alpha - Angstromsstatic doubleWIEN_DISPLACEMENTWien displacement law constant - m.K
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static PhysicalConstantsgetInstance()Get instance of class for aliasing.
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Field Detail
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SPEED_OF_LIGHT
public static final double SPEED_OF_LIGHT
Speed of light in a vacuum - m.s^-1- See Also:
- Constant Field Values
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PLANCK
public static final double PLANCK
Planck constant - J.s- See Also:
- Constant Field Values
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PLANCK_BAR
public static final double PLANCK_BAR
Planck constant/2*PI - J.s- See Also:
- Constant Field Values
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PLANCK_EVS
public static final double PLANCK_EVS
Planck constant - eV.s- See Also:
- Constant Field Values
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PLANCK_EVS_BAR
public static final double PLANCK_EVS_BAR
Planck constant/2*PI - eV.s- See Also:
- Constant Field Values
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PLANCK_LENGTH
public static final double PLANCK_LENGTH
Planck length - m- See Also:
- Constant Field Values
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PLANCK_MASS
public static final double PLANCK_MASS
Planck mass - Kg- See Also:
- Constant Field Values
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PLANCK_TEMP
public static final double PLANCK_TEMP
Planck temperature - K- See Also:
- Constant Field Values
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BOLTZMANN
public static final double BOLTZMANN
Boltzmann constant - J.K^-1- See Also:
- Constant Field Values
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GRAVITATION
public static final double GRAVITATION
Gravitational constant - N.m^2.Kg^-2- See Also:
- Constant Field Values
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ACCEL_GRAV
public static final double ACCEL_GRAV
Standard acceleration of gravity on Earth m.s^-2- See Also:
- Constant Field Values
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ELECTRON_MASS
public static final double ELECTRON_MASS
Electron mass - Kg- See Also:
- Constant Field Values
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PROTON_MASS
public static final double PROTON_MASS
Proton mass - Kg- See Also:
- Constant Field Values
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FINE_STRUCTURE
public static final double FINE_STRUCTURE
Fine structure constant - unitless- See Also:
- Constant Field Values
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ELECTRON_VOLT
public static final double ELECTRON_VOLT
Electron volt - J- See Also:
- Constant Field Values
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STEFAN_BOLTZMANN
public static final double STEFAN_BOLTZMANN
Stefan-Boltzmann constant - W.m^-2.K^-4- See Also:
- Constant Field Values
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RYDBERG
public static final double RYDBERG
Rydberg constant - m^-1- See Also:
- Constant Field Values
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WIEN_DISPLACEMENT
public static final double WIEN_DISPLACEMENT
Wien displacement law constant - m.K- See Also:
- Constant Field Values
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WAVE_HALPHA
public static final double WAVE_HALPHA
Wavelength of H-alpha - Angstroms- See Also:
- Constant Field Values
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AU
public static final double AU
1 Astronomical unit - m- See Also:
- Constant Field Values
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PARSEC
public static final double PARSEC
1 Parsec - m- See Also:
- Constant Field Values
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MASS_OF_SUN
public static final double MASS_OF_SUN
Mass of Sun - Kg- See Also:
- Constant Field Values
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RADIUS_OF_SUN
public static final double RADIUS_OF_SUN
Radius of Sun - m- See Also:
- Constant Field Values
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LUMINOSITY_OF_SUN
public static final double LUMINOSITY_OF_SUN
Solar Luminosity - W- See Also:
- Constant Field Values
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MASS_OF_EARTH
public static final double MASS_OF_EARTH
Mass of the Earth - Kg- See Also:
- Constant Field Values
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MASS_OF_JUPITER
public static final double MASS_OF_JUPITER
Mass of Jupiter - Kg- See Also:
- Constant Field Values
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SOLAR_CONSTANT
public static final double SOLAR_CONSTANT
Solar constant - kW.m^-1- See Also:
- Constant Field Values
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JANSKY
public static final double JANSKY
1 Jansky - W.m^-2.Hz^-1- See Also:
- Constant Field Values
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Method Detail
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getInstance
public static PhysicalConstants getInstance()
Get instance of class for aliasing. That is could use:PhysicalConstants PC = PhysicalConstants.getInstance(); System.out.println( "Speed of light = " + PC.SPEED_OF_LIGHT );
to cut down on verbage.
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