Current Sky and Weather Conditions near Redshift Observatory                  Astronomical Time 

     (Button Color Code:   Green – Weather;   Blue – Astronomy;   Red – Fire)                                             

 10-Day Forecast Redshift WU Forecast SW US Radar NM Doppler Radar Lightning NOAA Nat'l Forecast

 NOAA Jet Stream Water Vapor Loop New Mexico Skies Daily Sunspot Map Spaceweather Post Seeing Monitor

 NMS Clear Sky Chart Dimension Point Redshift All-Sky Young All-Sky Haynes All-Sky Haynes Observatory   

 New Mexico Fire Info Active Fire Mapping SWCC Fire Maps NWCC Fire Maps Inciweb Fire Maps


Current Weather Conditions at Redshift Observatory

   (Data from Davis Vantage Pro 2 Weather Station)

NOTE:  ET (in the Rain box above) stands for evapotranspiration which is a measurement of evaporation and transpiration (water movement through plants) that is calculated from the solar sensor, wind, temperature, and precipitation data.

Sky Quality Meter


The SQM or Sky Quality Meter  is an instrument which measures the brightness of the sky in MPSAS (magnitudes per square arcsecond).  For night time skies, this typically ranges from <18.0 to 22.0 – higher numbers indicate darker skies.  This data is collected and updated every 5 minutes throughout the night.  Acquisition begins and ends at Civil Twilight (dusk to dawn).  All times are Mountain Time (US & Canada).  The NELM (Naked Eye Limiting Magnitude) is the apparent magnitude of the faintest star an observer can discern under given sky conditions.  The limiting magnitude depends strongly on variables such as sky transparency and the observer’s experience and acuity of vision.  NELM can range from 4 to 8 with higher numbers visible only with telescopes.

 New Mexico Skies Clear Sky Chart

This chart displays additional sky conditions in the vicinity including cloud cover, transparency *, and seeing * with respect to wind, humidity, and temperature.  New Mexico Skies is approximately 3/4 mile SSW of Redshift Observatory.


SQM Data Chart

Above is a chart of the Night Sky Brightness data collected throughout the current night with the SQM at Redshift Observatory.  On the upper chart, MPSAS is the y-axis and time is the x-axis.  The smaller chart has NELM for the y-axis.  These charts shows the relative change in brightness throughout the night.  Both are essentially saying the same thing and should track each other.  This is real time at night and is still a work-in-progress (chart and data scripts provided by Rick Young).