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оригинального документа
: http://www.mso.anu.edu.au/~plah/Home_Page_Stuff/constants.html/
Дата изменения: Unknown Дата индексирования: Fri Feb 28 02:07:43 2014 Кодировка: Поисковые слова: фундаментальные постоянные |
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Maths |
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PI |
= | 3.14159265 |
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e |
= | 2.7182818284 |
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Fundamental |
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Speed of Light c |
= | 2.99792458e5 km/s |
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Mass of Proton |
= | 1.67e-27 kg |
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Mass of Proton |
= | 1836.1 times mass of an electron |
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Planck's constant |
= | 6.62606957e34 Js |
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Avogadro's number |
= | 6e23 per mole |
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Graviational Constant G |
= | 6.67e-11 N m^2 kg^-2 |
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Astronomical |
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HI frequency |
= | 1420.405751786 MHz |
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HI wavelength |
= | 21.10611405 cm |
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Mass of Sun |
= | 1.989e16 kg |
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Radius of Sun |
= | 6.96e8 m |
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Mass of the Earth |
= | 5.976e24 kg |
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Mass of Jupiter |
= | 1.8986e27 kg |
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Mass of Jupiter |
= | 318 times the mass of Earth |
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Solar Luminosity |
= | 3.8e26 W?? for each filter?? Bessel |
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Units |
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1 erg |
= | 0.0001 J |
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1 Jansky |
= | 10e-26 W m^-2 Hz^-1 |
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1 Angstrom |
= | 0.1 nm |
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1 AU |
= | 1.4960e11 m |
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1 Parsec |
= | 3.08567758e16 metres |
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Spectral lines |
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Lya |
= | 1215.7 Ang |
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[OII] |
= | ~3727 Ang |
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[OII] doublet |
= | 3726.0 Ang |
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[OII] doublet |
= | 3728.8 Ang |
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Ca K |
= | 3933.7 Ang |
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Ca H |
= | 3968.5 Ang |
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Hdelta |
= | 4101.7 Ang |
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G-band |
= | 4304.4 Ang |
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Hgamma |
= | 4340.5 Ang |
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Hbeta |
= | 4861.3 Ang |
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[OIII] |
= | 4958.9 Ang |
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[OIII] |
= | 5006.8 Ang |
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Mg |
= | 5175.3 Ang |
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Na |
= | ~ 5894 Ang |
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[NII] |
= | 6548.0 Ang |
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Halpha |
= | 6562.8 Ang |
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[NII] |
= | 6583.5 Ang |
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[SII] |
= | 6716.4 Ang |
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[SII] |
= | 6730.8 Ang |
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Last modified: July 2013