Janis Joplin

Singer · United States · 1943–1970

Capricorn 28.8° · born January 19, 1943
Birth time unknown

Birth date sourced. Birth time unknown.The Moon remained in Cancer throughout that civil day. Everything below uses only what the complete civil day settles.

The day, read honestly

The Moon stands at 9.9° Cancer, in domicile — the planet in its own sign, running on home rules. Of everything the chart can be read for without a birth time, that is the loudest single fact in it.

Positions at 12:00 civil time in Port Arthur—a reference instant, not a birth time. No houses, rising sign, angles, or sect were computed.

Where the Sun actually stood

At noon on that date the Sun stood at 28.8° Capricorn, inside the third decan (20°–30°), whose traditional sub-ruler is Mercury. The decan is the older, finer division — it is what the sign looks like once you stop rounding it to thirty degrees.

The personal registers

For the fast movers, Mercury was at 9.4° Aquarius, Venus was at 14.2° Aquarius, Mars was at 24.9° Sagittarius. Read together: thought that travels by comparison; attraction that begins as conversation; effort spent in bursts and openings.

The angles that hold

Saturn to Pluto is the closest call of the day, a sextile within 0.4°. A sixth of the circle is close enough for cooperation and far enough that it stays optional. Behind it, Uranus trine Neptune at 1.3°, and the Sun trine Uranus at 2.0° — both still well inside the orbs this site uses. All of it stands whatever the hour was: each angle was tested from midnight to midnight before it was written down.

The standing structure

the Sun, Saturn, Neptune close a triangle of trines. The closed triangle is the scheme’s picture of flow — and its warning that flow, unspent, stays private. The Moon makes no major aspect that survives the day; the old reading gives such a planet autonomy — it acts alone, sometimes loudly.

The classical map

Read against the old dignities, two placements stand out. The Moon in Cancer at 9.9° is in domicile — the planet in its own sign, running on home rules; Jupiter in Cancer at 19.1° is in exaltation — the tradition’s honoured-guest placement, working at its best. None of this ranks anyone; dignity describes footing, and footing can be worked with.

The shape of the whole

Counting only the 10 placements whose signs hold for the whole day, the chart runs 5 air, 2 water, 2 fire, 1 earth by element and 4 cardinal, 3 fixed, 3 mutable by modality. An air emphasis is read as distance for the sake of clarity: the idea gets examined before it gets adopted. Mercury, Jupiter, Saturn, Uranus, Neptune and Pluto were retrograde — motion that reverses only from this vantage point, and which the old reading treats as delay used for revision.

The Moon, and how far it can move

The Moon stayed in Cancer for the whole of that day at the birthplace, covering 11.8° between midnight and midnight. Fast enough that its degree is approximate, slow enough that its sign is not in doubt. At the noon reference it stands at 9.9°.

Where this comes fromSources, revisions, and exactly what this chart assumes

Source article: Janis Joplin · revision 1362210944
Wikidata: Q1514 · revision 2518045038
Retrieved: 2026-07-26T18:47:50.947Z
Birth date: 1943-01-19 · day precision · proleptic-gregorian
Birthplace: Port Arthur, United States · Q45400
Coordinates: 29.8850, -93.9400 · from Port Arthur
Reference instant: 1943-01-19T17:00:00.000Z · noon civil time, not a birth time
Omitted: Rising sign, houses, angles, and sect—all require a birth time.
Unknown-time range: Moon travelled 11.83° · The Moon remained in Cancer throughout that civil day.
Engine: astronomy-engine (repository dependency) · @zodiacs/engine/internal/math
Portrait: Grossman Glotzer Management Corporation · public domain · Wikimedia Commons

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