When observatories close due to bad weather, they remain closed for at least 45 minutes.
Seeing (arcsec)
Wind speed (km/h)
Cloud cover according to sky temperature (°C)
Night Sky Brightness (mag/arcsec²)
Ambient light levels
Temperature & Dew point (°C)
Humidity (%)
Real-Time Data Metrics
AAG Cloudwatcher Data (24/7 )
Temperature: 20.1 °C
Avg* Temperature on site: 11.96 °C
Humidity: 14%
Avg* Humidity on site: 19.96%
Dew point: -8.23 °C
Wind Speed: 18km/h
Avg* Wind Speed on site: 3.62km/h
Gust: 19km/h
Brightness: Sunny
Rain: Dry
Clouds: Clear
*Calculated since 2023-07-05 20:51:02.
Alcor System Cyclope Data (Night-Only)
Last Reading: 2025-07-04 20:11
Last Seeing: 1"
Avg* Seeing: 1.3"
Best Seeing: 0.38"
On: 2025-05-30 23:21
Night Best Seeing: 1"
On: 2025-07-05 00:52
*Calculated since 2025-05-21 14:04:05.
DarkSkyLab Ninox Data (Night-Only)
Last Reading: 2025-06-26 23:00
NSB: 21.07 mag/arcsec²
Zenith Galactic Latitude (ZGL): 11.4°
Sun Altitude: -64.9°
Moon Altitude: -44.6°
Moon Phase: 3.94%
Night Best NSB: 21.39 mag/arcsec²
On: 2025-06-26 19:27
ZGL of Night Best NSB: 32.4°
Best NSB: 23.85 mag/arcsec² (Bortle 1 class)
On: 2025-06-26 03:07
ZGL of Best NSB: -35.8°
Alcor System All-Sky Camera (24/7)
