Chart body
Jupiter
Where you expand and what you trust.
In a birth chart, Jupiter describes your growth — where you expand, trust, and get lucky.
What it actually is
More massive than every other planet combined, with a magnetic field 20,000 times Earth's. Its orbit takes just under twelve years, and it shields the inner solar system from many incoming comets.
In a chart: About a year in each sign.
How Jupiter is read
At its best
Generosity, perspective and luck that looks suspiciously like optimism repeatedly acted on.
The difficult end
Too much of a good thing. Promising at the size of your enthusiasm rather than your calendar.
What to do with it
Say yes to fewer, larger things. Jupiter makes whatever it touches bigger, including mistakes.
What Jupiter rules
Traditionally Jupiter rules Sagittarius and Pisces. If one of those is your rising sign, Jupiter is your chart ruler — the planet a traditional reading treats as standing for you.
The metal of Jupiter
Tin Sn
Tin turned copper into bronze and expanded what people could make, so it went to Jupiter. Read as increase — the quality that makes things around you larger.
The other chart bodies
Where is Jupiter in your chart?
Its sign says how it acts; its house says where in your life it acts. Both come from real positions at your birth moment.