Sunrise, sunset, dawn and dusk explanation

Sunrise, sunset and civil twilight (dawn, dusk) is calculated for 16 airports in Slovenia, using algorithm written by Fabio Soldati and certified by MIT (Massachusetts Institute of Technology)

LJLJairport J.P. Ljubljana363 m
LJMBairport E.D. Maribor261 m
LJPZairport Portorož2 m
LJCEairport Cerklje153 m
LJPOairport Postojna429 m
LJAJairport Ajdovščina117 m
LJBOairport Bovec434 m
LJBLairport Lesce504 m
LJNMairport Novo mesto174 m
LJCLairport Celje244 m
LJVEairport Velenje380 m
LJSGairport Slovenj gradec500 m
LJSKairport Slovenjske konjice270 m
LJPTairport Ptuj214 m
LJMSairport Murska Sobota184 m

Sunrise, sunset and civil twilight (dawn, dusk) are defined by:

Dawn starts when the center of the Sun is less then 6 degrees below horizon and ends when sunrise starts
Sunrise is the time when the top of the Sun appears above horizon
Sunset is the time when the top of the Sun disappers below horizon
Dusk starts when sunset ends and ends when the center of the Sun is more then 6 degrees below horizon

By moving slider +D, values changes by 1 day, max. 31 days.
By moving slider +M, values changes by 31 day, max. 12 months.

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