General Science of the Day
What is air temperature? (Meteorological Instruments)

Air temperature is measured by a thermometer. It is the temperature of air circulating at the layer between 1.25 and 2.00 meters above the ground but sheltered from direct solar radiation.

Report on Sunspot Observations
General Info of the Day
Date 2018-03-24
Moon Phase of the Day
Astronomy phenomenon First Quarter
Sunrise and Sunset, Moonrise and Moonset