Astronomy (orbital + HR)

Native astronomy diagrams. Pick `type orbital` for a Sun-centred orbital map (planets sized + tinted by parameters, distance in AU) or `type hr` for a Hertzsprung-Russell diagram with logarithmic temperature × luminosity axes, a main-sequence shading band, and star markers coloured by stellar class.

Templates

Source language

plaintext

Workstation

Studio

Engine id

astro

Open in Studio

In the same space

Most users come to Astronomy (orbital + HR) from TikZ astronomy or Hand-drawn orbital sketches. flowss runs this engine in the browser — no install, shareable via URL, exportable to PNG / SVG / PDF / source.

Syntax at a glance

type orbital
star "Sun"
planet "Earth" radius 2.5 distance 1.0 color blue

Paste this in the Studio code pane to see Astronomy (orbital + HR) render live. The full grammar is at the upstream-docs link above.

Sample templates

All 60 →

science

Astro — inner solar system

Sun + Mercury / Venus / Earth / Mars with relative distances.

science

Astro — outer solar system

Gas giants and ice giants.

science

Astro — H-R diagram (solar neighbourhood)

Hertzsprung-Russell diagram with main-sequence band and named stars.

science

Physics — Jupiter's Galilean Moons

Io, Europa, Ganymede and Callisto by relative orbital distance.

science

Physics — H-R Diagram (extended)

Named stars across the Hertzsprung–Russell diagram.

science

Physics — Saturn's Major Moons

Titan and the inner mid-sized moons by relative orbital distance.

Engine reference: astro · ← Browse all engines · Quick-start guide