Huai'an
Jiangsu, China
Today
Mar 9, 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
6:21 AM
Golden: 48min
Sunset
6:06 PM
Golden: 48min
True Darkness
7:29 PM
Stars visible
Add to Calendar
Get reminders for golden hour and dark sky windows
Morning Golden Hour
6:06 AM - 6:54 AM
Evening Golden Hour
5:33 PM - 6:21 PM
Dark Sky Window
7:29 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
All calendar apps
Timezone aware
No sign-up needed
Moon Phase
72%
Phase
Waxing Crescent
Illumination
72%
Light Pollution
8
Class 1
DarkClass 5
SuburbanClass 9
City
DarkClass 5
SuburbanClass 9
City
Huai'an 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
37%
Moderate cloud cover - potential for dramatic skies
Morning
69%
Evening
0%
Overnight
100%
Precipitation
0%
Very unlikely
Wind
16
km/h avg
Gusts up to 32 km/h
🟡 Breezy - May affect tracking
Humidity
60%
Moderate
Visibility
24.1
km
Excellent clarity
Temperature
13°C
High
/
4°C
Low
Seeing
5
/ 5
Excellent - Atmospheric stability
Transparency
4
/ 5
Very Clear - Air clarity
Conditions Summary
⭐ Premium conditions - Excellent for high-magnification planetary work and deep sky imaging
Nearby Dark Sky Locations
Within 100km
Taolin
Bortle
8
3
Dramatic improvement
249.8km·~3h 7min
Zheshan
Bortle
8
3
Dramatic improvement
284.1km·~3h 33min
Jiushan
Bortle
8
3
Dramatic improvement
293.7km·~3h 40min
💡 These locations have significantly darker skies (8 → 3). Expect 32x more visible stars.
Need to calculate camera settings?
Use our free calculators for shutter speed, hyperfocal distance, and field of view
Open Calculators