Space Telescope App

Meteor season is here. Pick your spot, check the Moon, and get an alert when your best viewing window opens - plus live Webb targets and the next ISS pass overhead.

Space Telescope is an astronomy app for people who actually go outside and look up.

See what the James Webb Space Telescope is observing right now. Decide whether tonight is worth staying out for. Catch the next visible ISS pass over your own location, and follow the rocket launches coming up.

WHAT WEBB IS LOOKING AT, RIGHT NOW

Webb's current target, science category, proposal, instruments and scheduled times, refreshed every five minutes while the view is open. Tap through to the proposal or the full observation schedule.

A REAL PLAN FOR METEOR NIGHT

Most meteor apps hand you a peak date. This one tells you what you will actually see. Set your location and how dark your sky is, and get an honest meteors-per-hour range, the best viewing window, where to look, how much the Moon will wash out, and what 30, 60 or 90 minutes outside is likely to be worth.

Two alerts that matter: a heads-up the evening before, and a nudge when your window opens. Cloud cover is not included, so check the weather before you commit.

THE ISS, OVER YOUR HOUSE

Live position, altitude, velocity and orbit, plus crew, expeditions, dockings and visiting vehicles. Seven days of passes for your location with quality, direction, peak elevation and duration - set a 10-minute alert or drop the pass straight into your calendar.

LAUNCH DAY

Upcoming launches with live countdowns, status, provider, rocket, pad, launch window and webcast link. One tap for a reminder 15 minutes before liftoff.

GALLERIES WORTH SCROLLING

Imagery and mission guides for James Webb, Hubble, Chandra, the Nancy Grace Roman Space Telescope, Artemis, Mars and the ISS. Follow Roman's countdown, instruments and journey to L2. Pinch to zoom, save, share, like and comment. Turn on alerts only for the galleries you care about.

PICTURE OF THE DAY

NASA's Astronomy Picture of the Day, image or video, with the full expert explanation and an optional daily alert.

AND WHEN YOU WANT MORE

• Tonight Sky: sunrise, sunset, Moon phase, illumination and twilight
• Space Weather: Kp index, solar wind, aurora probability and active alerts
• Cosmic Calendar: meteor showers, eclipses and other sky events
• Exoplanets: discovery method and year, distance, orbit, mass, radius, temperature, host star and habitable-zone marker
• Community astrophotography: post your own shots with gear and conditions
• Space wallpapers for your phone
• Quizzes, points, levels and global leaderboards
• Ask an Astronomer, and live chat rooms in 10 languages
• Full interface in English and Spanish

PREMIUM

Space Telescope is free, with ads. Premium removes every ad, unlocks the premium wallpaper collection and adds a gold avatar ring. Choose a monthly or annual subscription, or pay once for lifetime access, which also grants 1,000,000 points and Diamond level straight away.

Subscriptions are charged to your Apple Account and renew automatically unless auto-renew is turned off at least 24 hours before the current period ends. Manage or cancel in your Apple Account settings.

Whether you follow Webb every day, plan a Perseids or Geminids watch, photograph the night sky, teach astronomy, or just want to know when the ISS will cross overhead, Space Telescope keeps the useful details in one place.

Space Telescope is an independent astronomy app and is not affiliated with or endorsed by NASA, ESA, STScI, SpaceX or any launch provider. Data and imagery are credited to their respective sources.

Privacy policy: https://jameswebbtracker.com/privacy-policy Terms of use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/