Explore the cosmos for free, or unlock the full experience with ExoAtlas Pro.
Get started exploring the cosmos
For serious space enthusiasts
| Feature | Free | Pro |
|---|---|---|
| Data & Catalog | ||
| Solar system data catalog (planets, moons, dwarfs) | ||
| Asteroids, comets & spacecraft data | Catalog browsing | Full access in Explorer |
| Launch Calendar | ||
| Applications | ||
| ExoAtlas Explorer (Live View) | Planets, moons & dwarf planets | + asteroids, comets, spacecraft |
| Orbit Visualizer | ||
| Tonight's Sky Planner | ||
| Planet rise/set, moon phase, conjunctions | ||
| Weather & cloud-cover forecast | Current night | 14-day forecast |
| Deep-sky catalog on sky chart | Messier only (up to 110) | NGC/IC + Messier (up to 350) |
| Nightly observing targets list | Top 5 | Up to 40 |
| Advanced target filters & sorts | ||
| Session Planner (astrophotography timeline) | ||
| iCal export of observing targets | ||
| Sky chart PNG export | ||
| Exposure Planner | ||
| Tools | ||
| Epoch Calculator | ||
| TLE Parser | ||
| Coordinate Converter | ||
| Account & Planning | ||
| User Preferences (location, Bortle, units) | ||
| Gear Management (cameras & lenses) | ||
| Target Lists | 3 lists · 20 objects each | 20 lists · 200 objects each |
| Target list CSV import & export | ||
| Observation Calendar | 10 sessions · 7-day horizon | 500 sessions · 1-year horizon |
| API | ||
| Daily request limit (per account) | 100 req/day | 10,000 req/day |
| Experience | ||
| Ad-free browsing | ||
| Early access to new features | ||
| Support | ||
| Community support | ||
| Priority support | ||
Can I switch between monthly and annual billing?
Yes. You can change your billing interval at any time from your Billing page. When switching to annual, you'll receive the 40% discount immediately.
Can I cancel my Pro subscription?
Absolutely. You can cancel anytime from your Billing page. You'll keep Pro access until the end of your current billing period.
What payment methods are accepted?
We accept all major credit and debit cards through Stripe, including Visa, Mastercard, and American Express.
Is there a free trial?
We don't offer a trial, but the Free plan gives you full access to all core tools and features. You can upgrade to Pro whenever you're ready.