Spark image

Optical data

Wavelengths

Sodium D lines 590 nm and 589.6 nm

Absolute refractive indices

Diamond   2.42   Perspex   1.49
Sapphire   1.78   Glycerol   1.47
Ruby   1.76   Paraffin   1.43
Duodomethane   1.74   Magnesium fluoride   1.38
Carbon disulphide   1.63   Water   1.33
Glass (flint)   1.53-1.96   Ice   1.31
Glass (crown)   1.48-1.61   Air at STP   1.000 298

Albedo of various surfaces

Average value for the Earth   0.4
Jupiter   0.70
Mars   0.17
Moon   0.073
Mercury   0.07
Venus   0.72
Fresh clean snow   0.8 - 0.9

 
 
 
© Keith Gibbs 2013