LIVE SPACE TRACKING

Track satellites live and explore deep space.

Follow real SGP4-propagated Earth satellites, calculate passes from your location, and explore interplanetary spacecraft using NASA/JPL Horizons ephemerides.

Track ISS Live →Explore Deep Space

SGP4 Earth orbitCelesTrak orbital dataJPL Horizons deep space

Live satellite tracking and Earth orbit visualization

QUICK ACCESS

Popular live trackers

View most tracked →

◎SPACE STATION

International Space Station

Live position, orbit, speed and seven-day local pass predictions.

Track ISS → ◌SPACE STATION

Tiangong

Live orbit and observer-relative pass calculations.

Track Tiangong → ◇OBSERVATORY

Hubble Space Telescope

One clean orbit track with current propagated values.

Track Hubble → ✦CONSTELLATION

Starlink

Select a Starlink satellite, set your location and calculate seven-day passes.

Track Starlink → ☁WEATHER

Weather Satellites

Browse current weather spacecraft and open full local pass tracking.

Track Weather → ◉LEO BROADBAND

Amazon Leo

Browse Amazon's LEO constellation objects from the CelesTrak Kuiper group.

Track Amazon Leo → ◫LEO BROADBAND

OneWeb

Select a OneWeb satellite for live orbital and observer data.

Track OneWeb → ↗WEATHER

GOES Satellites

Browse GOES weather satellites or open the dedicated GOES 19 tracker.

Track GOES → ★WORLDWIDE DISCOVERY

Most Tracked

Quick access to spacecraft widely followed by space enthusiasts around the world.

View most tracked →

MOON TONIGHT

Moon Phase Today & Live Moon Tools

Check today’s Moon phase, tonight’s full-moon status, the next full moon, live Moon position, lunar eclipses, and local moonrise and moonset times.

Moon Phase Today →

◐MOON PHASE TODAY

Moon Phase Today

Current lunar phase, illumination, lunar age, distance and the next full moon date.

Check today’s Moon → ●TONIGHT

Full Moon Tonight

Find out whether the exact full-moon moment falls on your local date tonight.

Check full moon → ◉NEXT EVENT

When Is the Next Full Moon?

See the calculated next full moon date, local time and live countdown.

See next full moon → ◎LIVE TRACKER

Moon Live Tracker

Track current Moon altitude, azimuth, distance, phase, moonrise and moonset.

Track the Moon → ◒ECLIPSE

Lunar Eclipse Tonight

Check today against NASA/GSFC lunar-eclipse catalog events and see the next eclipse.

Check eclipse → ↗LOCAL TIMES

Moonrise and Moonset Time

Use your location to calculate today’s local moonrise and moonset times.

Find Moon times → ☾TONIGHT

What Is the Moon Phase Tonight?

Preview the Moon phase and illumination for 9:00 p.m. in your local timezone.

See tonight’s phase →

SKY TONIGHT

Explore Tonight’s Sky

Use your location to explore stars, planets, constellations, the Milky Way, meteor showers, ISS and Starlink passes, observable comets, stargazing conditions and near-Earth asteroid approaches.

Open Night Sky Tonight →

✦LIVE SKY

Night Sky Tonight

Real catalog stars, Moon and planets plotted for your location and selected observing time.

Explore tonight’s sky → ◉INTERACTIVE PLANETARIUM

Live Planetarium

Search real stars, Moon, planets, constellation guides and selected bright satellites on one observer sky map.

Open planetarium → ◷STARGAZING

Best Time to Stargaze Tonight

Combine darkness, Moonlight, cloud cover, visibility and rain chance into a local observing score.

Find the best time → ♃PLANETS

Planets Visible Tonight

See which planets are observable, where to look and the best local viewing time.

See visible planets → ✧CONSTELLATIONS

Constellations Visible Tonight

Find familiar constellations above your horizon with altitude, direction and anchor stars.

Find constellations → ≋MILKY WAY

Is the Milky Way Visible Tonight?

Check the Galactic Center, darkness, Moon interference, best time and viewing direction.

Check the Milky Way → ☾MOON & PLANETS

What Planet Is Near the Moon Tonight?

Identify the closest planet to the Moon and compare angular separation, altitude and direction.

Identify the planet → ☄METEORS

Meteor Shower Tonight

Check active major showers, peak dates, radiant direction, altitude and reference ZHR.

Check meteor activity → ◎ISS TONIGHT

ISS Visible Tonight

Find potentially visible ISS passes using your location, local darkness and station illumination.

Find ISS passes → ⟡STARLINK

Starlink Visible Tonight

Search current Starlink orbital records for candidate dark-sky, sunlit passes from your location.

Find Starlink passes → ☄COMETS

Comets Visible Tonight

See current comet candidates with magnitude, best time, altitude and constellation.

Find observable comets → 📷LIVE AR SKY

Live Sky AR Camera

Point your phone at the sky to find the Sun, Moon, planets and bright stars with a camera overlay in daytime or at night.

Open Live Sky AR → ◇NEAR-EARTH

Asteroids Passing Earth Today

See today’s close approaches with distance, lunar-distance comparison and relative velocity.

See asteroid approaches →

PLANETS & SOLAR SYSTEM

Explore the Solar System Live

See current planetary geometry from NASA/JPL Horizons, move the Solar System to another date, compare distances and connect live positions with tonight’s sky.

Open planet tools →

☀INTERACTIVE 3D

Solar System Live

Explore Mercury through Neptune at current JPL-derived positions with date and time controls.

Open live Solar System → ◎CURRENT POSITIONS

Planet Positions Today

Longitude, latitude, distance and heliocentric speed for all eight planets.

View positions → ↔LIVE DISTANCE

Distance from Earth

Compare current planetary distances in AU, kilometres and light-travel time.

Check distances → 🪐PLANET GUIDE

Solar System Planets

Explore Mercury to Neptune with reference imagery, facts and links to live data.

Explore planets → ✦YOUR SKY

Planets Visible Tonight

Connect Solar System geometry with the planets above your local horizon tonight.

Check visibility → ▦PLAN AHEAD

Planetary Events Calendar

Browse conjunctions, oppositions and major planetary events.

Open calendar →

SUN & CALENDAR

Plan the Sky Ahead

Calculate local Sun and twilight conditions, then browse Moon phases, meteor peaks, eclipses and seasonal astronomy events.

Open Sun Calendar →

☀SUN TODAY

Sunrise & Sunset

Local sunrise, sunset, solar noon, day length and twilight.

Calculate Sun times →▦SUN MONTH

Sunrise & Sunset Calendar

Compare daily sunrise, sunset and daylight across a whole month.

Open Sun calendar →◒PHOTOGRAPHY

Golden Hour Calculator

Morning and evening golden hour plus blue hour for your location.

Find golden hour → ∑ASTRONOMY SPACE CALCULATORS

Astronomy Space Calculators

Telescope optics, astrophotography, distances, light travel time, orbital mechanics and planetary physics.

Explore calculators → ✦SKY EVENTS

Astronomy Calendar

Browse Moon phases, meteor peaks, equinoxes and solstices by month.

Explore calendar →☿PLANET EVENTS

Planetary Events Calendar

Oppositions, conjunctions and greatest elongations from JPL Horizons.

View planet events →☾MOON MONTH

Moon Calendar

See lunar phase and illumination for every day of the month.

Open Moon calendar →◐ECLIPSES

Eclipse Calendar

Browse upcoming solar and lunar eclipses from NASA/GSFC dates.

View eclipses →●FULL MOON YEAR

Full Moon Calendar

Official annual Full Moon dates and Universal Times from USNO.

View Full Moons →⊙SEASONS

Equinox & Solstice

Official seasonal event dates plus links to daylight and Sun tools.

View season dates →

ROCKET LAUNCHES

Track the Next Launch

Follow the worldwide rocket launch schedule with local launch times, live countdowns, missions, rockets, providers and launch sites.

Open launch schedule →

🚀NEXT LAUNCH

Next Rocket Launch

See the nearest scheduled mission with a live countdown and local launch time.

View next launch →▦WORLDWIDE SCHEDULE

Rocket Launch Schedule

Browse upcoming missions, rockets, providers, pads and launch locations.

Browse schedule →◷TODAY

Rocket Launches Today

Check launches matching today in your device timezone.

Check today →7NEXT 7 DAYS

Launches This Week

See missions currently scheduled during the next seven days.

View this week →✦SPACEX

SpaceX Launches

Upcoming Falcon and Starship missions in the global launch feed.

View SpaceX →◉INDIA

ISRO Launches

Upcoming Indian launch missions with local times and launch sites.

View ISRO →

YOUR SKY

What is above you right now?

Set your observing location and calculate azimuth, elevation, range and geometric passes for Earth-orbiting spacecraft.

⌖

Observing locationNew York, USA

Find Satellites Above Me

Minimum elevation0° – 45°

Pass horizon7 days

Observer locationGPS or place search

DEEP SPACE

Follow missions across the solar system

All deep-space missions →

◉COMMISSIONING · EN ROUTE TO L2

Roman Space Telescope

Mission elapsed time, verified commissioning milestones and Roman’s journey toward the Sun–Earth L2 region.

Track Roman → ✧INTERSTELLAR

Voyager 1

Sun/Earth distance, light time and JPL ephemeris position.

Track Voyager 1 → ✧INTERSTELLAR

Voyager 2

Explore the second Voyager's current deep-space vector.

Track Voyager 2 → ⬡OBSERVATORY

James Webb Space Telescope

JPL Horizons position for JWST near the Sun–Earth L2 region.

Track JWST → ◈INTERPLANETARY

Europa Clipper

Follow the mission's journey toward the Jupiter system.

Track Europa Clipper →

EXPLORE

Satellite categories

Space Stations→Bright Satellites→Starlink→Amazon Leo→OneWeb→Weather→GOES→GPS→Galileo→BeiDou→Amateur Radio→Science→Geostationary→CubeSats→Recent Launches→Active Satellites→

LATEST GUIDE

How to Track Satellites Live

Learn how to read live latitude, longitude, altitude and speed, choose a Starlink spacecraft, and calculate upcoming passes from your location.

Read the guide →Visit Blog

LEARN

Understand the track

What is a NORAD ID?

A catalog number used to identify Earth-orbiting objects. Exact IDs give fast lookup.

Why two tracking systems?

Earth satellites use orbital elements and SGP4. Voyager, JWST and interplanetary missions use JPL Horizons ephemerides.

What is a geometric pass?

A period when an Earth-orbiting satellite is above your geometric horizon. It does not automatically mean the spacecraft is visible to the naked eye.