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Riverside Astronomical Society

Observing nights

We observe from Riverside Observatory when the sky allows. Cloud wins more often than not — that is normal astronomy.

Astro calendar Sky tools

Moon phase

Last Quarter

Subscribe to lunar calendar

Sky conditions

Poor — heavily cloudy · 19°C · 95% cloud · 14 km/h wind

Clear Outside forecast

Aurora forecast

2.7

Kp index

Quiet — Unlikely — needs a stronger storm

Daily max Kp forecast

NOAA 27-day outlook · tap a range above to change days

Forthcoming observing

Meeting schedule

  • Tue 20 Oct 2026 21:00 – 23:30
    Observing night

    Riverside Observatory · Weather permitting — check the site or social media if unsure.

    15 days to go

  • Fri 20 Nov 2026 20:00 – 22:30
    Observing night

    Riverside Observatory · Weather permitting — check the site or social media if unsure.

    46 days to go

  • Sun 20 Dec 2026 20:00 – 22:30
    Observing night

    Riverside Observatory · Weather permitting — check the site or social media if unsure.

    76 days to go

  • Wed 20 Jan 2027 20:00 – 22:30
    Observing night

    Riverside Observatory · Weather permitting — check the site or social media if unsure.

    107 days to go

  • Sat 20 Feb 2027 20:00 – 22:30
    Observing night

    Riverside Observatory · Weather permitting — check the site or social media if unsure.

    138 days to go

  • Sat 20 Mar 2027 20:00 – 22:30
    Observing night

    Riverside Observatory · Weather permitting — check the site or social media if unsure.

    166 days to go