Tangshan
Hebei, China
Today
Feb 26, 2026
Forecast For
Feb 25, 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
Fair
Photography-specific metric factoring cloud quality and golden hour potential for landscape shooters.
Light Windows Today
4 AM12 PM11 PM
Sunrise
6:45 AM
Golden: 53min
Sunset
5:54 PM
Golden: 53min
True Darkness
7:24 PM
Stars visible
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Morning Golden Hour
6:28 AM - 7:21 AM
Evening Golden Hour
5:17 PM - 6:11 PM
Dark Sky Window
7:24 PM onwards
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- 1. Download the .ics file above
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- 4. You'll get 30-minute reminders before each window
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Moon Phase
56%
Phase
First Quarter
Illumination
56%
⚠️ High Moon Interference
Bright moonlight will wash out faint deep sky objects
Light Pollution
8
Class 1
DarkClass 5
SuburbanClass 9
City
DarkClass 5
SuburbanClass 9
City
Tangshan Classification
Poor for Astronomy
Bortle Class 8: City Sky
City sky
Visible Tonight
Sky glows whitish gray, only brightest stars visible, M44 invisible
💡 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
85%
Heavy clouds - limited visibility and light
Morning
53%
Evening
100%
Overnight
92%
Precipitation
0%
Very unlikely
Wind
21
km/h avg
Gusts up to 39 km/h
🔴 Windy - Challenging conditions
Humidity
73%
High - May cause haze
Visibility
24.1
km
Excellent clarity
Temperature
9°C
High
/
1°C
Low
Seeing
2
/ 5
Fair - Atmospheric stability
Transparency
1
/ 5
Hazy - Air clarity
Conditions Summary
🌪️ Poor seeing - Stick to wide-field imaging or wait for better atmospheric stability
Nearby Dark Sky Locations
Within 100km
Dachang Shandao
Bortle
8
3
Dramatic improvement
382.3km·~4h 47min
Wushan
Bortle
8
3
Dramatic improvement
381.4km·~4h 46min
Jiushan
Bortle
8
3
Dramatic improvement
383.5km·~4h 48min
💡 These locations have significantly darker skies (8 → 3). Expect 32x more visible stars.
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