The horizon should be clearly defined and the brightest stars should be visible under good atmospheric conditions i.
One still should be able to carry on ordinary outdoor activities. The time period when the sun is between 6 and 12 degrees below the horizon at either sunrise or sunset.
The horizon is well defined and the outline of objects might be visible without artificial light. Ordinary outdoor activities are not possible at this time without Lonely wife Clintonville Wisconsin illumination.
The time period when the sun is between 12 and 18 degrees below the horizon at either sunrise or sunset. The sun does not contribute to the illumination of the sky before this time in the morning, or after this time in the evening. In the beginning of morning astronomical twilight and at the end of astronomical twilight in the evening, sky illumination is very faint, and Lonely women want casual sex Nantes be undetectable.
The time of Civil Sunset minus the time of Civil Sunrise. The time of Actual Sunset minus the time of Actual Sunrise. The change in length of daylight between today and tomorrow is also listed when available.