Home/Calculators/China on Aletheia

Shiyan

Hubei, China
Today
Feb 26, 2026
Forecast For
Feb 25, 2026
Poor

Netflix & Chill Night (Too Cloudy)

100% cloud cover — nothing to see tonight. Good time to plan next week.

Tonight's Forecast
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
Poor
Photography-specific metric factoring cloud quality and golden hour potential for landscape shooters.

Light Windows Today

Blue HourGolden HourGolden HourBlue Hour
4 AM12 PM11 PM
Sunrise
7:08 AM
Golden: 48min
Sunset
6:30 PM
Golden: 49min
True Darkness
7:52 PM
Stars visible

Add to Calendar

Get reminders for golden hour and dark sky windows

Morning Golden Hour
6:53 AM - 7:41 AM
Evening Golden Hour
5:57 PM - 6:45 PM
Dark Sky Window
7:52 PM onwards
📱 How to use:
  1. 1. Download the .ics file above
  2. 2. Open it with your calendar app (iPhone Calendar, Google Calendar, Outlook)
  3. 3. Events will be added automatically
  4. 4. You'll get 30-minute reminders before each window
30-min reminders
All calendar apps
Timezone aware
No sign-up needed

Moon Phase

56%
Phase
First Quarter
Illumination
56%
⚠️ High Moon Interference
Bright moonlight will wash out faint deep sky objects

Light Pollution

6
Class 1
DarkClass 5
SuburbanClass 9
City
Shiyan Classification
Moderate for Astronomy
Bortle Class 6: Bright Suburban Sky

Bright suburban sky

Visible Tonight

No Milky Way visible, only brightest Messier objects visible

🌙 Moderate Light Pollution
Good for bright objects. Milky Way visible but washed out. UHC filters recommended for nebulae.
💡 Tip: Check "Nearby Dark Sky" section below to find better observing sites within driving distance

Weather Conditions

Cloud Cover
88%
Overcast - poor conditions for photography
Morning
95%
Evening
100%
Overnight
48%
Precipitation
43%
Possible
Wind
8
km/h avg
Gusts up to 21 km/h
🟢 Calm - Excellent for tracking
Humidity
82%
High - May cause haze
Visibility
22.4
km
Excellent clarity
Temperature
10°C
High
/
8°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

Songbai

Bortle
6
3
Significant improvement
99.3km·~1h 14min

Luoping

Bortle
6
2
Dramatic improvement
172.6km·~2h 9min

Dachang

Bortle
6
3
Significant improvement
178.6km·~2h 14min
💡 These locations have significantly darker skies (6 → 3). Expect 8x more visible stars.

Need to calculate camera settings?

Use our free calculators for shutter speed, hyperfocal distance, and field of view

Open Calculators