Solar & Astronomy Utility

Dynamic Daylight & Aurora Visibility Matrix

Calculate exact daylight hours, civil twilight, midnight sun curves, and historical Northern Lights visibility probabilities for any Alaskan city and month.

Select Travel Month:

Select Latitude & City:

24-Hour Solar Spectrum Breakdown ? ? Midnight Sun Active

21.8 Hours Direct Daylight

Twilight

12:00 AM 6:00 AM 12:00 PM (Solar Noon) 6:00 PM 11:59 PM

Direct Sunlight Hours 21h 50m Sunrise: ~3:00 AM ? Sunset: ~12:45 AM

True Darkness Window 0h 00m No true astronomical night

Aurora Borealis Probability 0% (Too Bright) Sky remains too bright for auroral visibility

Seasonal Travel Reality Midnight Sun Bring sleep eye masks; 24-hour outdoor activity

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