Observatories wait at least 45 minutes after the last bad weather event before opening or reopening. This delay ensures stable conditions and avoids unnecessary opening and closing of the roofs.
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: 15.95 °C
Avg* Temperature on site: 12.1 °C
Humidity: 11%
Avg* Humidity on site: 17.83%
Dew point: -14.52 °C
Wind Speed: 7km/h
Avg* Wind Speed on site: 3.91km/h
Gust: 10km/h
Brightness: Sunny
Rain: Dry
Clouds: Clear
*Calculated since 2023-07-15 22:26:02.
Alcor System Cyclope Data (Night-Only)
Last Reading: 2025-07-14 06:36
Last Seeing: 1.17"
Avg* Seeing: 1.29"
Best Seeing: 0.38"
On: 2025-05-30 23:21
Night Best Seeing: 1.17"
On: 2025-07-15 02:26
*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)
