Frida Kahlo's Birth Chart

Against simulated 1900s births, Saturn ranks first, all but motionless at 27°26′ Pisces and three days or less from turning retrograde (about one chart in 14). Mercury is second and third: no major aspect ties it to the other nine planets (about one chart in 19), and it was slowing toward its own station, within five days (about one chart in 7).

Fourth is Jupiter, combust beside the Sun (about one chart in 20); fifth, Mars retrograde (about one chart in 10); sixth, the annular solar eclipse of July 10, 1907 (births within a week of any eclipse: about one chart in 6). The Moon exalted in Taurus (about one chart in 12) and Mars out of bounds (about one chart in 6) close the list.

Six of the eight hold at any hour; Mercury's isolation ends at 10:36 AM and the Moon's exaltation at 9:04 AM.

Kahlo's hour rests on entry no. 277 in the Coyoacán civil register, a birth record known through two descriptions: Gannit Ankori (2002) gives about 8:30 AM, and Hayden Herrera (1991) cites the birth certificate for eight-thirty in the morning. Herrera's 1983 biography and books by Robin Richmond and Hedda Garza repeat the hour; no source offers another.

Kahlo's later date, July 7, 1910, was her own revision. Per Martha Zamora, the register places the birth at her maternal grandmother's house near the Casa Azul, too close to matter for the chart.

Mexico kept no standard time before 1922, so the hour is Coyoacán mean time, UTC−6:36:39. A birth more than 34 minutes late would change the Moon, which turned to Gemini that morning, and the rising sign. Houses are touchier: Venus needs a birth from 8:29:56 AM to sit in the 10th house, Pluto one from 8:27:23 AM.

Mars, at 13°23′ Capricorn in its exaltation sign, was backing up 18 arc-minutes a day, and its declination of 27°59′ south outruns the Sun's own maximum of 23°27′ by 4°32′. Followers of Kt Boehrer's declination work read an out-of-bounds planet as acting beyond conventional limits. Uranus is the only other planet moving backward.

No line in the aspect table touches Mercury, not even to an angle, and none would until the Moon, in Gemini by then, came within orb of a sextile later that morning. It rules Virgo, next to rise, and sits in the 12th house by Placidus, the 1st house by Whole Sign.

The Sun–Mars opposition, 0°01′ wide, is the tightest aspect and holds all day. Neptune joins the Sun within 0°58′ and Uranus joins Mars within 2°46′, stretching four bodies across Cancer and Capricorn. Venus and Pluto, 0°35′ apart in Gemini, both sextile the Ascendant for births from 8:12 AM to 8:49 AM.

The widest gap, 154°16′ from Mercury to Uranus, covers Virgo through Sagittarius, and three open arcs split the planets into the clumps Marc Edmund Jones called a splay. Water and earth tie at four of twelve points, cardinal leads the modes with five, and seven of the ten planets lie between the Midheaven and Ascendant.

The Sun had climbed 40°08′ by the registered hour, making it a day chart, where Hellenistic sect doctrine casts Mars as the out-of-favor malefic. The Moon, Mars and Jupiter hold exaltations and top the strength scores, though Jupiter, combust at 7°03′ from the Sun, carries a debility in William Lilly's scoring.

Meryl Streep's page comes nearest, sharing the Sun and Moon signs. Charles III shares the Taurus Moon and Leo rising, Margot Robbie the Cancer Sun plus a Jupiter less than a degree from Kahlo's, and Harrison Ford the Sun alone. No other page has her birth date.

Lahiri's 22°33′ ayanamsa puts the Sun at 20°48′ Gemini. The Moon, at 7°09′ Taurus, holds that sign all day, Vrishabha at any hour and exalted in Jyotish too; Mars and Jupiter lose their exaltations in Sagittarius and Gemini. The lagna, Simha at 0°57′ Leo, becomes Karka (Cancer) with a birth 5 minutes earlier.

Saturn returned to its natal degree once, on April 3, 1937 (age 29.7). Jupiter's first return, on June 20, 1919, was a single crossing; the next two, from November 1, 1930, and September 16, 1942, took three passes each, one retrograde, and a fourth came only after her death.

The chart is cast for 19°21′ N, 99°09′ W, old Coyoacán's center, from precise astronomical calculations with Placidus houses. Each rate sets a feature against simulated 1900s births spread over all hours and cities weighted by size; attributed readings report a tradition, not a claim about Kahlo.