Browse Explorer API
The Star Engine  ·  STEN v0.2  ·  Open Stellar Catalog
THESTARDB
The Universe, Rendered
119,626 Named Stars
6,036 Exotic Objects
6,336 Exoplanets
STEN v0.2  ·  Three.js r134  ·  WebGL
Open Stellar Encyclopedia  ·  STEN v0.2

Every Star.
Rendered.

119,626 catalogued stars, 6,036 exotic objects, and 6,336 confirmed exoplanets - each rendered in real time with accurate spectral color, granulation, and glow using the Star Engine (STEN).

Browse the Catalog View the Sun
119,626 Catalogued Stars
6,036 Exotic Objects
6,336 Confirmed Exoplanets
11 Object Types
About

What is TheStarDB?

TheStarDB is an open stellar encyclopedia built on the HYG catalog, ATNF pulsar database, and NASA Exoplanet Archive. Every object in the catalog is rendered live in your browser using STEN - the Star Engine - a custom WebGL renderer that produces spectral-class-accurate stars with animated convection cells, coronal glow, and type-specific visual behavior.

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Real Star Data
HYG v4.1 catalog with accurate coordinates, magnitudes, spectral classes, and distances from Earth.
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Live WebGL Rendering
STEN renders every star with custom GLSL shaders - granulation, limb darkening, pulsation, accretion disks, and more.
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Exotic Objects
6,017 pulsars from ATNF plus 87 curated black holes, magnetars, neutron stars, and IMBHs with accurate parameters.
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Exoplanet Archive
6,336 confirmed exoplanets from the NASA Exoplanet Archive with host star links and orbital parameters.
Catalog

Object Types in STEN

Each object type has a dedicated shader pipeline - from the blue-white fury of O-class supergiants to the silent darkness of stellar black holes.

O / B Class
Hot blue-white stars. Rigel, Spica, Bellatrix.
~12,000 in catalog
A / F Class
White to yellow-white. Sirius, Vega, Procyon.
~18,000 in catalog
G / K Class
Yellow to orange. Sol, Alpha Centauri, Tau Ceti.
~40,000 in catalog
M Class
Red dwarfs - most common star. Proxima Cen, Barnard's Star.
~45,000 in catalog
Red Supergiant
Massive, ancient. Betelgeuse, Antares, VY Canis Majoris.
Rare
White Dwarf
Stellar remnants. Sirius B, 40 Eridani B, Van Maanen's Star.
~1,200 in catalog
Magnetar
Neutron stars with extreme magnetic fields. SGR 1806-20.
5 curated
Pulsar
Rotating neutron stars - 4,393 from the ATNF catalog.
4,393 in catalog
Stellar Black Hole
Cygnus X-1, V404 Cygni, Gaia BH1. Accretion disk rendered.
48 curated
SMBH
Supermassive. Sgr A*, M87*, TON 618. Jets and photon ring.
25 curated
IMBH
Intermediate mass. HLX-1, NGC 1313 X-1.
6 curated

Begin Exploring the Universe

Browse the full stellar catalog, or jump directly into the STEN explorer and render any star in real time.

Browse All Stars Open STEN Explorer API Docs