| Altitude | Solar Altitude Angle |
| AST | Apparent Solar Time |
| Azimuth | Solar Azimuth Angle |
| DayLength | Day Length |
| DayOfYear | Day of year |
| Declination | Declination Angle |
| DiffuseRadiation | Solar Diffuse Radiation on a Surface |
| DiffusionFactor | Atmospheric Diffusion Factor |
| DirectRadiation | Solar Direct Beam Radiation on Surface |
| EOT | Equation of time |
| Extraterrestrial | Solar Extraterrestrial Radiation |
| ExtraterrestrialNormal | Normal Extraterrestrial Solar Radiation |
| HourAngle | Solar Hour Angle |
| Incidence | Solar Incidence Angle |
| LST | Local Standard Time |
| OpenRadiation | Open Sky Solar Radiation |
| Solar | Calculating Solar Variables |
| SolarConstant | Solar Constant |
| Sunrise | Sunrise Time |
| Sunset | Sunset Time |
| Transmittance | Atmospheric Transmittance |