Real-time stream
Seeing Monitor
Live view from the Polaris camera, with star tracking and capture controls.
Starting player
Searching for a star
Atmospheric monitoring
Polaris image motion
Waiting for measurement service
- Motion after drift removal
- — arcsec RMS— px RMS
- Estimated zenith seeing
- — arcsec
- Brightness fluctuation
- — % RMS
- Slow drift
- — px/min
Times in local time. Custom periods can span up to 366 days.
No completed measurements for this metric in the selected period.
Measurements are saved every 30 seconds and survive service restarts. Gaps mark unavailable data, restarts or changed settings; mixed or incomplete intervals are left blank. Export downloads the original records for the applied period.
Rapid star motion can indicate atmospheric turbulence. Mount vibration, focus and sensor noise also affect it. Seeing is a single-star model estimate at 500 nm; brightness fluctuation also includes clouds and measurement noise.