​SRO Seeing & Darkness Data

​Note:  Though the Creek Fire is no longer active in our area and is significantly contained (49% as of October 8th), there is still significant ash which, when heavy, may result in our seeing monitors not collecting data at night.  The Creek fire is substantial, it is the largest single-incident fire in California history and the 5th largest overall, behind "complex" (multi-incident) fires, according to Cal Fire. Complete containment of the Creek Fire is expected by October 30th, with this haze possibly clearing sooner. 

For updated seeing data please refresh the page.

SBIG Seeing Monitor
Starts at 9:30 PM

Alcor Seeing Monitor (Cyclope)
Starts at 9:30 PM

Alcor Flux Monitor
The flux reading is a measure of sky transparency utilizing the Alcor Cyclope Seeing Monitor
​ Starts at 9:30 PM

Sky Quality (Darkness and Lunar Phase)
Unihedron Sky Quality Meter LE utilizing Knightware Software

Moon Glow ASC