Brasília
Federal District, Brazil
Today
Mar 10, 2026
0
/ 100
First Light Index
Poor
Our proprietary metric combining sky clarity, moon interference, and light pollution for optimal stargazing conditions.
0
/ 100
Shutter Score
Good
Photography-specific metric factoring cloud quality and golden hour potential for landscape shooters.
Light Windows Today
4 AM12 PM11 PM
Sunrise
6:13 AM
Golden: 42min
Sunset
6:29 PM
Golden: 42min
True Darkness
7:41 PM
Stars visible
Add to Calendar
Get reminders for golden hour and dark sky windows
Morning Golden Hour
6:00 AM - 6:42 AM
Evening Golden Hour
6:01 PM - 6:42 PM
Dark Sky Window
7:41 PM onwards
📱 How to use:
- 1. Download the .ics file above
- 2. Open it with your calendar app (iPhone Calendar, Google Calendar, Outlook)
- 3. Events will be added automatically
- 4. You'll get 30-minute reminders before each window
30-min reminders
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Moon Phase
63%
Phase
First Quarter
Illumination
63%
Light Pollution
9
Class 1
DarkClass 5
SuburbanClass 9
City
DarkClass 5
SuburbanClass 9
City
Brasília Classification
Poor for Astronomy
Bortle Class 9: Inner City Sky
Inner city sky
Visible Tonight
Entire sky brightly lit, only Moon, planets, and brightest stars visible
💡 Urban Sky Recommendation
Focus on lunar and planetary observation. Consider driving to a darker location for deep sky work.
💡 Tip: Check "Nearby Dark Sky" section below to find better observing sites within driving distance
Weather Conditions
Cloud Cover
72%
Heavy clouds - limited visibility and light
Morning
94%
Evening
6%
Overnight
100%
Precipitation
58%
Likely
Wind
10
km/h avg
Gusts up to 25 km/h
🟡 Breezy - May affect tracking
Humidity
83%
High - May cause haze
Visibility
19.6
km
Excellent clarity
Temperature
26°C
High
/
19°C
Low
Seeing
4
/ 5
Excellent - Atmospheric stability
Transparency
1
/ 5
Hazy - Air clarity
Conditions Summary
🌫️ Hazy conditions - Bright objects only, consider light pollution filters
Nearby Dark Sky Locations
Within 100km
São João da Ponte
Bortle
9
3
Dramatic improvement
420.4km·~5h 15min
Barreiro do Jaíba
Bortle
9
3
Dramatic improvement
465.3km·~5h 49min
Pompéu
Bortle
9
3
Dramatic improvement
496.4km·~6h 12min
💡 These locations have significantly darker skies (9 → 3). Expect 64x more visible stars.
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