♡︎

✧・゚: * the other half of the sky * :・゚✧

Selenia

セ レ ニ ア

a natal chart that knows where the stars really are ♥︎

NOT ON THE APP STORE · ASTRELIA'S SISTER APP
☾ open source on github (GPL-3.0) ↗
✦ real ephemeris math ✦ ☾ tropical & sidereal ☽ ☆ open source ☆ ♡ lives on my phone ♡ mercury is fine, probably ✧ born under real stars ✧
try it: your birth sphere DEMO_01.EXE

the app's centrepiece is a glowing 3D sphere of your chart, drawn over the real star field. this is the pocket version: it opens on the sky of right now, but enter your birthday and it becomes your birth sky: sun, moon and every planet at their true places on the ecliptic, aspects and all, computed live in your browser with the same kind of math the app uses.

celestial_sphere.exe · tiny web version

drag to orbit · no birth time? noon is assumed (the moon may drift a few degrees) · no birthplace needed, the planets look the same from everywhere on earth; your birthplace is what unlocks the rising sign & houses, which the app computes properly ♥︎

♡ your birth date never leaves this page · everything is computed in your browser, nothing is sent, saved, or remembered ♡

what is it? README.TXT

astrelia's sister app: the astrology one. it casts charts the honest way, on the same real astronomical engine that runs the planetarium: sun, moon and planets from proper ephemeris math, houses solved for your actual birthplace and minute. no lookup tables, no swiss ephemeris.

they're kept separate on purpose: the science app never mixes in symbolism, and this one never pretends to be science. two ways of reading one sky, in two apps that don't argue.

computed vibes are still vibes. but they're computed.

what it does FEATURES.LOG
  • birth charts: type a birthplace, it geocodes to coordinates + timezone; big three, full wheel, dignities, chart patterns (grand trines, t-squares, yods), house rulers, elemental balance.
  • the 3D celestial sphere: your chart drawn onto the actual sky: real catalog stars, the ecliptic, the houses as great circles, aspect chords, a guided tour, even time travel.
  • transits & forecasts: what's touching your chart now and next, retrograde stations with exact dates.
  • predictive: secondary progressions, solar & lunar returns, solar arc, all on the same engine.
  • relationships: synastry between any two saved charts, composite charts, a compatibility read.
  • readings: built from keyword tables, no licensed text and no chatbot at runtime, so the same placement always gets the same words. tap anything for its meaning.
  • share: chart posters, and the sphere rendered to a GIF or MP4.
  • reminders: transit alerts and birthday reminders, opt in, scheduled on the phone itself.
status STATUS.LOG

finished, more or less: she runs on my phone and nowhere else, with no app store and no testflight. the code is open, so anyone with a mac and xcode can build her. her name comes from the little golden moon flowers, and her math is astrelia's. i'm not planning more work on her, so this is selenia as she is.

elysia@pink: ~/Developer/Selenia · zsh

elysia@pink:~/Developer/Selenia $ ./status --check ☾

chart engine  · validated against astro.com

3d celestial sphere  · real stars behind the wheel

transits · progressions · returns  · the future, scheduled

synastry & composite  · relationship math

a name  · selenia, the moon flower ♡

open source  · GPL-3.0, on github

an app icon  · she has a face now

app store release  · apple said no1

elysia@pink:~/Developer/Selenia $

1 she did go in for app review once. apple turned her down under guideline 4.3, which is their way of saying the store already has plenty of astrology apps. so now she lives on my phone and on github, where anyone can build her ☾

SWIFT 6 SWIFTUI + CANVAS NO SWISS EPHEMERIS MEEUS MATH HYG ★ BACKDROP 100% HOMEMADE
✧ help & support ✦ privacy ← back to main page ♡

the stars incline, they do not bind ♥︎