P² Apps · iOS

Know what to image tonight

AstroPlan ranks galaxies, nebulae, and planets for your observing site — using weather, moon phase, light pollution, and your imaging style. Then explore them on a live sky map.

Download on the App Store Read the user guide
No account required On-device astronomy iPhone & iPad
AstroPlan home screen showing tonight's conditions and targets

Built for clear nights

From quick go/no-go checks to deep target research — everything follows your location, date, and equipment.

Ranked targets

Tonight's best deep-sky objects scored for altitude, moon separation, Bortle, weather, and your filters.

Conditions dashboard

Moon, Bortle, cloud, wind, humidity, dew, and darkness — with hourly detail on Pro.

Calendar planning

Plan day, week, month, or year ahead. See top targets and moon phase for any night.

Sky map & AR

Disc map or point your phone at the sky. Find objects, trace horizons, align with moon or sun.

Equipment & FOV

Save rigs and preview field of view on any target. Pro guides tuned to your telescope and camera.

Tonight's guides

Plain-English outlook and per-target framing tips — on-device rules with optional Pro AI when online.

See it in action

A dark, field-friendly interface designed for planning at the telescope or from the sofa.

Tonight's ranked target list
Tonight's Targets
Target detail with visibility score and guide
Target detail
Sky map with augmented reality overlay
Sky Map AR
Seven-day forecast and equipment rig
Forecast & rig
Light pollution Bortle map
Bortle map
Home dashboard with conditions
Home dashboard

Free to plan. Pro to go deeper.

Core ranking, calendar, disc sky map, and basic conditions are free. Upgrade when you want the full catalogue, unlimited AR, and richer guides.

Free

Plan every clear night

  • Full ranked target list for your site
  • Home conditions & twilight timeline
  • Calendar & popular catalogue targets
  • Disc sky map (unlimited)
  • AR trial, then limited daily sessions
  • 3-night forecast strip

AstroPlan Pro

Your observing guide

  • Full Messier, NGC & planet catalogue
  • Unlimited AR sky map
  • Equipment rigs & FOV preview
  • Full tonight's outlook & guides on every target
  • Hourly conditions & 7-night forecast
  • Pro imaging & About articles

Subscriptions via the App Store · Monthly or yearly · 1-week free trial on monthly

Ready for the next clear sky?

Download AstroPlan and see what's worth imaging tonight — from your actual observing site.

Get AstroPlan on the App Store