Observing aids

Helpful tools for planning a session. Beginners: start with the Moon, Jupiter’s moons, and the Pleiades.

Moon phase

New Moon

Subscribe to lunar calendar

Sky conditions

Fair — broken cloud · 9°C · 51% cloud · 27 km/h wind

Clear Outside forecast

Aurora forecast

7.0

Kp index

Strong storm — Possible from dark sites if the sky is clear

Daily max Kp forecast

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

Tools we recommend

Stellarium Web

The sky from a browser — good for planning what is up tonight.

Heavens-Above

ISS passes and bright satellites for your location.

Clear Outside

Cloud, seeing, and darkness before you leave home.

Moon phase

Avoid faint deep-sky targets near full Moon unless that is the target.

Live feeds

ISS passes

  • Fri 16 Oct · 06:16

    Max 12° from SSE · 3 min

  • Sun 18 Oct · 06:16

    Max 21° from SSW · 5 min

  • Mon 19 Oct · 05:29

    Max 16° from S · 4 min

  • Mon 19 Oct · 07:05

    Max 40° from SW · 1 min

  • Tue 20 Oct · 04:43

    Max 12° from SSE · 1 min

Planet visibility

  • Saturn

    Low · E · mag 0.2 · Cetus

Aurora forecast

7.0

Kp index

Strong storm — Possible from dark sites if the sky is clear

Daily max Kp forecast

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