Sun Calculator App Support

What is Sun Calculator? Description of Sun Calculator 2742 chars

Sun calculator show interactive 3D scene that include sun movement and sunlight phases during the given day at the given location.

Sun calculator calculate sun azimuth, sun height and zenith angle on the go with time flow.
Also calculate dusk time, sunrise time, midday or noon time, sunset time and dawn time for given day.
Included day time length. Extra Shadow length calculation on the go with time flow. All result are copy-able.
Additionally you can set custom height object to see how much the shadow distance.

Rotate your device to see how the sun position it self with compass orientation.
Option to fast forward the time by 5 minute to see how the shadow change after sun movement.
Select custom location and time date to preview how the sun movement around the world.

Great App for outdoor adventurer who plan ahead their day time.

The zenith angle is the angle between the sun and the vertical. The zenith angle is similar to the elevation angle but it is measured from the vertical rather than from the horizontal, thus making the zenith angle = 90° - [sun height/elevation].

Solar azimuth angle is defined as the angle between the projection of sun's centre onto the horizontal plane and due south direction.

Dusk occurs at the darkest stage of twilight, or at the very end of astronomical twilight after sunset and just before night. At predusk, during early to intermediate stages of twilight, enough light in the sky under clear conditions may occur to read outdoors without artificial illumination; however, at the end of civil twilight (when Earth rotates to a point at which the center of the Sun's disk is 6° below the local horizon), such lighting is required to read outside. The term dusk usually refers to astronomical dusk, or the darkest part of twilight before night begins.

Sunrise (or sunup) is the moment when the upper rim of the Sun appears on the horizon in the morning.

Noon (or midday) is the time when the Sun appears to contact the local celestial meridian. This is when the Sun reaches its apparent highest point in the sky, at 12 noon apparent solar time and can be observed using a sundial.

Sunset, also known as sundown, is the daily disappearance of the Sun below the horizon due to Earth's rotation.

Dawn is the time that marks the beginning of twilight before sunrise. It is recognized by the appearance of indirect sunlight being scattered in Earth's atmosphere, when the centre of the Sun's disc has reached 18° below the observer's horizon. This morning twilight period will last until sunrise (when the Sun's upper limb breaks the horizon), when direct sunlight outshines the diffused light.

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