⛎︎ Ophiuchus · Sidereal · True Sky Astrology ⛎︎

See Your Chart the Way the Sky Actually Looks

Generate your chart → then verify it yourself using a sky app in under 60 seconds
💥 Don't believe it. Check it. See exactly where your planets appear in the actual sky.
Takes 30 seconds to verify. No theory. Just look.
StarChart 13 Example Wheel
Birth Information
LOCATION TIP
Type your birth city like: North Kansas City, MO (or Kansas City, Missouri) and then tap the correct match from the dropdown.
(Month / Day / Year — easier to change years)
If city search or timezone fails, tap this to use your phone's timezone
Don't take this at face value — check it yourself
💜 Support Free Real-Sky Astrology
Enter birth info and tap Calculate
StarChart 13 · Natal Wheel
✦ Why Some Charts Don't Match the Sky ✦
Different astrology systems measure the zodiac differently. Most popular apps use a system that hasn't aligned with the actual sky in over 2,000 years.

StarChart 13 simply shows you where the planets actually appeared in the sky on the day you were born — based on real astronomy.

No theory. No argument. Just look for yourself.
✦ Don't Believe Us? Check It Yourself ✦
Open Sky Map or Stellarium, use the time travel feature, and set your exact birth date, time and location. The planets will be sitting in the exact same constellations as your chart. Every. Single. Time. No theory — just look.
Don't Take This At Face Value — Check It Yourself 👀
Generate your chart, then open Sky Map, set your birth location and date — and watch the planets sit in the exact same constellations. No theory. Just look.
▶️ Watch the Proof
📱 Step 1 — Set Up Sky Map Correctly
✅ Turn ON Set location manually
✅ Turn ON Use magnetic correction
❌ Turn OFF Always use GPS
Type your birth city in Place name and hit OK.
Sky Map settings step 1 Sky Map location step 2 Sky Map confirmed step 3
🔭 Step 2 — Time Travel to Your Birth Date
Tap the clock icon → Time Travel → set your birth date and time → hit Go. Then look at where the planets are sitting in the constellations.
⭐ Step 3 — See the Proof
Real Sky Map screenshots from January 18, 1989 at 4:18 AM — Katy's birth data. Every planet matches StarChart 13 exactly.
Neptune Venus Saturn Uranus in Sagittarius Sun in Sagittarius Moon Jupiter in Taurus Mars in Aries Mercury in Capricorn Pluto in Libra Mercury in Capricorn Pluto in Libra
✅ Every planet matches. Every time.
🤖 ANDROID
Best option — use the Sky Map app with time travel
📲 Get Sky Map
🍎 iPHONE
Sky Map is not on iPhone — use Stellarium (time travel feature)
📲 Get Stellarium
StarChart 13
✦ 13 Sign Astrology For All ✦
📖 Free 13-Sign Astrology Resource ⚕️ Ophiuchus the Disruptor ⚕️ Ophiuchus Today 🌑 Lilith
✦ Follow & Connect ✦
Connect to Katy through these platforms
▶ Katy13Astrology ▶ RaStar13 · Kim
Follow Katy on social media
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✦ Don't Believe It. Check It. ✦
Created by Katy Thomas
© 2026 Katy Thomas · StarChart 13 · All Rights Reserved
Unauthorized reproduction, redistribution, or cloning of this software is prohibited.
✦ Dedication ✦
StarChart 13 exists because of the curiosity and work of others who questioned the traditional zodiac and looked to the real sky for answers.

With gratitude to Kim (RaStar Astrology) for her knowledge and influence on constellation-based astrology, and to Eric, whose Prometheus Capricorn wheel inspired the visual foundation for this project.

Their ideas helped light the path that led to this experiment with a 13-constellation sky chart.