Your sky, explained.

A stargazing companion built on real astronomical computation, a real 8,900+ star catalogue, and real live space data — not approximations or placeholder content.

What's actually real in here

Every number on screen is computed or fetched from a live source — nothing in SkyPulse is hardcoded or simulated.

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Real orbital mechanics

Sun, Moon, and all 7 planets positioned using real Keplerian orbital elements and sidereal-time rise/set/transit calculations — not linear approximations.

8,921 real stars

Imported from the HYG astronomical database (Hipparcos/Yale/Gliese), down to naked-eye visibility — real coordinates, magnitudes, and names.

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Point-your-phone Star Gazer

Real device compass + tilt sensor fusion projects the sky through your phone like a window, with pinch-to-zoom and search-to-locate any object.

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Real constellation art

Illustrated constellation figures affine-warped onto their actual star positions — sourced from Stellarium's community sky-culture project.

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Real satellite tracking

Live TLE orbital data from CelesTrak, propagated with a validated SGP4 engine — no paid API key required, unlike most competitors.

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Real stargazing conditions

A live stargazing score computed from real cloud cover, humidity, and wind data for your exact location tonight.

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Real space news & launches

Live upcoming launches and space news pulled from Launch Library 2 and Spaceflight News API, cached and kept current automatically.

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Real astronomy calendar

Actual eclipses (NASA catalogue) and meteor showers (computed by solar longitude) — not guessed dates.

Everything included

The full feature list — one app, no in-app purchases, no paywalled sections.

How it compares

A lot of free stargazing apps lean on canned data or paywall the useful parts. Here's where SkyPulse stands.

FeatureSkyPulseTypical free stargazing app
Satellite trackingFree, no key neededOften requires a paid API key
Star catalogue depth8,921 real starsOften a few hundred, hardcoded
Constellation art alignmentReal star-anchored warpOften a fixed decorative overlay
Stargazing conditionsLive weather-based scoreRarely included
Offline resilienceCached fallback across the appVaries
Search-to-locate objectsAny star, planet, or constellationOften objects only