That normally means that there is a beacon on the top of the tower - These beacons can be red to warn of the towers height - most tall obstructions on the perimeter and approach to an airport will also have a red light for pilots to see. Beacons can be used on the tower to show a pilot the type of airport they are approaching Some of the most common used are;
White and Green - Lighted land airport
Green alone - Lighted land airport
White and Yellow - Lighted water airport
Yellow alone* - Lighted water airport
Green, Yellow, and White - Lighted heliport
White, White, Green - Military Airport
White, Green, Amber - Hospital and/or Emergency Services Heliport
A taxiway
A taxiway
A taxiway
A taxiway
It means that the two measurements that are plotted on the H-R diagram - its luminosity and its spectral type (equivalent to its temperature) - change.
what N.C. mean in diagram alarm
If you mean Windsor in England, it does not have an airport.
xpress airport
If you mean the CN Tower then i can answer your question, but if you mean the CV Tower then I have no clue what you're talking about.
Do you mean the tower of azora?? The Tower of Althalaxx?
A drying star that has collapsed to the size of the earth and is slowly cooling off; located are lower left of the H-R diagram.
It means "tower".