Moon, Venus, Mars and Mercury sign ingress data, 1940-2030
3,130 tropical sign ingresses of Venus, Mars and Mercury, plus every Moon sign change (14,599 tropical and 14,598 sidereal/Lahiri), in UTC and JST as free CSV and JSON (CC BY 4.0). Computed with Astronomy Engine; the generator code is open.
Columns
- planet：Mercury / Venus / Mars
- ingress_utc / ingress_jst：time the planet entered the sign (to the minute, seconds truncated)
- sign_index（0=Aries … 11=Pisces）, sign_en, sign_ja, previous_sign_en
Moon sign changes (tropical and sidereal)
The Moon changes sign about every 2.5 days. Both the tropical (Western) and sidereal Lahiri (Vedic) zodiacs are in one file; a zodiac column (tropical or sidereal_lahiri) replaces planet; other columns as above.
See Moon sign meanings, or use the free API and embeddable widget for a specific time and place.
Method
Using Astronomy Engine 2.1.19 (MIT), the geocentric apparent ecliptic longitude (true equinox of date) was scanned every 6 hours and each sign change refined by bisection to within 30 seconds (the Moon every 2 hours; sidereal = tropical minus the Lahiri ayanamsa). As a check, Mercury's 2026 stations (Feb 26, Mar 20, Jun 29, Jul 23, Oct 24, Nov 13 UTC) match published dates.
Use and license
CC BY 4.0. Free to use, including commercially, with attribution to "GenesisCore Astrology Guide" and a link to this page.