In development
The real solar system, where it is today.
hapitech.space is a 3D explorer that runs in your browser. Every planet is placed by solving Kepler's equation for the current date, so what you see is where it is.
Computed in this page, just now
- Date
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- Days since J2000
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- Earth-Sun distance
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- Earth-Mars distance
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- Mars heliocentric longitude
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- Jupiter heliocentric longitude
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From J2000 Keplerian elements (mean values, no perturbations). Accurate enough to see the sky's shape; not an ephemeris for navigation.
What it is
An explorer for the actual solar system, not a diorama. Orbits come from published orbital elements: semi-major axis, eccentricity, inclination, node, perihelion and mean anomaly. The browser solves for each body's position and draws it in WebGL. Nothing to install.
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01
Scan bodies, earn exploration points
Fly to a planet or moon and scan it. Each first scan adds exploration points and unlocks its real data: radius, day length, year length, axial tilt.
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02
A journal for every body
Keep your own notes per planet and moon. Observations, questions, things to look up later, kept with the body they belong to.
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03
Scrub through time
Pick any date and watch the planets move to it. Rewind to a past alignment or jump ahead to the next close approach of Mars.
These features describe the product we are building. The 3D view above is the current engine.
Status
In development
hapitech.space is being rebuilt from the ground up. Want to know when it opens?