Xasteria Plus is the expanded version of the free Xasteria Weather app. It adds premium forecast sources, an Apple Watch companion app, Home Screen widgets, and more observing tools and features.
It also helps fund the 7Timer forecast servers that power the free ASTRO forecast used by Xasteria and observers around the world.
If you haven't tried Xasteria yet, the free version is a good place to start.
Forecast sources
• 7Timer / GFS: worldwide ASTRO forecast covering cloud cover, seeing, transparency, temperature, humidity, rain/snow, instability and wind
• Apple Weather: configurable hourly hyperlocal forecast, up to 10 days
• MET Norway: ECMWF-based, useful in terrain-heavy regions
• OpenWeather: hyper-local real-time conditions at your precise location
• Cloud Map: animated EUMETSAT and NASA infrared satellite imagery covering the last few hours
• Multi: combines 7Timer astronomy data with the optimal short-term forecast from MET Norway or Apple Weather, blending both beyond a configurable crossover time and highlighting disagreements
Apple Watch
• A companion Watch app lets you check key forecast data without picking up your phone.
• Several weather complications and Smart Stack widget.
Home Screen Widgets
• Configurable Tonight's weather and Multi-source astronomy weather forecasts
• Satellite passes
• Aurora forecast
Solar eclipses
Find every solar eclipse visible from your location, past or future, and rehearse it in an animated simulator with real-time audio cues calling each stage. The photo tool then runs the camera for you: timed shots through the partial phases, and automatic diamond ring, Baily's beads and bracketed exposures around totality, as stills or video.
More Tools
• Aurora forecast, with worldwide and local data/maps.
• ISS and satellite passes, with simulation, sky charts, live map tracking and dedicated Tiangong and Hubble views and an ISS live feed.
• Interactive light pollution map using World Atlas 2015 or Xasteria/VIIRS 2025 data.
• Lunar calendar with Sun/Moon graphs and rise/set/twilight data.
• Full Location Manager: online search, offline database, map picking, GPS accuracy, elevation and barometric pressure on supported devices.
• Quick access to Clear Outside, Meteoblue, Windy, Astrospheric, Sat24, water vapor imagery and more.
Display and usability
• Night vision mode: red, green or blue, with dimmer control, switching on manually or automatically at dusk.
• Three forecast display modes: icon/graphic, color-stripe, raw text.
• Summary icons for Apple Weather and 7Timer, configurable in Settings.
• Left panel switchable to icons.
• Extended help system.
No in-app popups asking for a review, but one on the App Store is always appreciated.
For suggestions or feedback:
http://astro.ecuadors.net
Best app I’ve found for planning observation sessions based on sky forecast and mon phase
• New Rain/Snow icon display that includes precipitation amount (can turn off in settings).
• Redesigned Apple Watch companion app, including a 3-day scrollable forecast, with location independent from the phone.
• Improved multi widget for home screen and watch with support for secondary forecast location.
• New small watch complications: Moon phase, darkness, clouds tonight, and clouds / seeing now.
• Fix widgets and complications for mono/tinted mode.
• Improved satellite Sky Map colours, added label font size option.
• Japanese translation.
A quick rating or review on the App Store is always appreciated. For suggestions or feedback:
http://astro.ecuadors.net
Version 5.3
The developer, Dimitrios Kechagias, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Location
Privacy practices may vary based, for example, on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Size
19.4 MB
Category
Weather
Compatibility
Requires iOS 13.0 or later.
iPhone Requires iOS 13.0 or later.
iPad Requires iPadOS 13.0 or later.
iPod touch Requires iOS 13.0 or later.
Mac Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.