Your free astronomy toolkit. Track ISS, track the Milky Way, find planets, and discover what's in your sky tonight. Built for beginners.
Computed from NASA/JPL planetary ephemerides
Tonight →
Tonight's Sky
What planets, stars, and objects are visible from your location right now?
Interactive Sky Chart
A planisphere in your browser. Stars, constellations, and planets mapped to your sky.
Planet Tracker
Rise times, brightness, which direction to look, and upcoming events.
Moon Phase Calendar
Monthly moon phases, rise and set times, illumination, and best nights for deep-sky viewing.
ISS Pass Predictor
When and where to look to see the Space Station fly over your location.
Compass & Orientation
Phone compass with Sun and Moon direction overlays.
Coming up →
Astronomy Events
Eclipses, conjunctions, oppositions, and more happening in the sky.
Find Eclipses Near Me
Upcoming solar and lunar eclipses visible from your location.
Meteor Shower Calendar
Peak dates, expected rates, and whether the Moon will spoil the show.
Comet Tracker
Track bright comets. Position, brightness, and visibility.
Milky Way Finder
Best windows to see the Milky Way from your location.
Solar Weather
Live SDO/SOHO imagery, sunspots, Kp index, aurora forecast, and active SWPC alerts.
Light Pollution Guide
Bortle scale and what you can see from your sky.
Indian Astronomy →
Panchanga
Today's tithi, nakshatra, yoga, and karana - computed astronomically.
Festival Astronomy
Diwali is always new moon. Holi is always full moon. See the sky behind every festival.
Nakshatra Guide
All 27 nakshatras mapped to real stars you can see.
Rasi
The 12 sidereal zodiac signs. See which rasi each planet is transiting right now.
Navagraha
The nine that seize. Live positions of all 9 grahas including Rahu and Ketu.
Indian Star Lore
Dhruva, Saptarishi, Arundhati, Agastya - ancient names for stars you can find tonight.
Discover Stories
A guided walk through the lore and the science of the Indian sky. Choose your path, get bite-sized stories.
Calendars and Learn →
Explore Calendars
See any date through a different calendar. Malayalam, Tamil, Hijri, Hebrew, Chinese, Ethiopian, Solar Hijri, Baha'i, Coptic, and 36 more.
Make Your Own Calendar
Make the same decisions ancient astronomers made. Pick the Sun or the Moon, choose your rules, and see which real calendar you just built.
21 Day Astronomy Course
A beginner's guide to reading the sky.
Blog
Longer pieces on the sky, calendars and Indian astronomy, and how the numbers in Orbit are worked out.
Orbit is built by RiSa Astronomy. Free forever. No ads, no astrology, no accounts required. Just you and the sky.
This is astronomy,
not your horoscope.
Every number on this platform is computed from JPL planetary ephemerides and is valid orbital mechanics. These are geometric coordinates, not predictions about your love life.