Stellium in Cancer: the cluster that keeps the house

Two in three Cancer stelliums in the sample include the Sun (68.9%), and almost as many include Mercury (63.3%). So the person reading this was most likely born between about 21 June and 23 July, with identity and thinking in the same sign. That sign asks one question of everything it touches: is this ours? Cancer is water, so it decides by feeling and memory before argument. It is also cardinal, so it acts on the feeling first, and that is the half of the sign pop astrology tends to drop.

The cardinal side looks like initiative aimed inwards. A Cancer-heavy person is rarely the one waiting to be looked after. They set up the visiting rota when a parent goes into hospital, they know which cousin is not speaking to which, and the anniversary venue is booked before anyone else has thought about it. At work it is the manager who shields the team from head office and takes a resignation personally.

What the cluster does not mean is a fragile person, or a homebody. Plenty of Cancer stelliums belong to people who travel for a living or live alone. What the planets protect can be a team, a regional accent, a grandmother's recipes or a box of letters nobody else would keep. The moodiness people expect is partly the ruler's speed: the Moon changes sign every two or three days, and a chart that answers to it changes its weather more often than one that answers to Saturn.

For one cohort it is. Uranus first touched Cancer from 30 August to 12 November 1948, came in for the long stay on 10 June 1949 and left on 24 August 1955, then returned from 28 January to 10 June 1956 (JPL DE442, UTC). Any personal planet passing through Cancer in those years found Uranus already there, which is why 7.9% of 1950s births in the sample have three or more planets in Cancer, against 3.3% in the 1960s.

Uranus is also the only outer planet a Cancer stellium can contain for anyone born from 1950 to 2010. Neptune and Pluto spent none of those years in Cancer, so the 30.7% of Cancer stelliums that hold an outer planet all hold Uranus, and none holds two. If your Cancer cluster includes Uranus, you were born inside one of the three stays above. The densest stretch ran from 24 May 1954 to 13 June 1955, when Jupiter, exalted in Cancer, was there with Uranus, and a Sun arriving in the sign made a stellium on the spot.

At the other end of the table sits the 1990s, at 1.6%, the lowest figure for any sign in any decade of the sample. Nothing slow stayed in Cancer that decade: Jupiter's year there ended on 18 August 1990, and Saturn did not arrive until 4 June 2003. The 1980s are personal in another way. Their all-ten and personal-five rates agree to two decimal places (2.81% and 2.81%), so in effect every Cancer stellium born that decade was built from the Sun, Moon, Mercury, Venus and Mars.

Imagine the Sun, Mercury and Venus together in Cancer, the commonest set at 11.8% of the sample's Cancer stelliums. This is the family archivist. The photographs are in labelled boxes and the date a great-grandmother arrived in the country is on file. Mercury in Cancer remembers by association, so a disagreement with this person tends to cite what was said at a wedding in 2014. Venus here loves by feeding and keeping: the affection is in the dish left on a neighbour's step, not in the speech.

A made-up second case: the Sun, Mars and Uranus in Cancer, 6.4% of the sample. It needs Mars to join Uranus while the Sun is in Cancer too, which happened in three summers, giving births of roughly 3 to 23 July 1951, 21 June to 23 July 1953 and 22 June to 11 July 1955. The home in this chart kept moving: a childhood of new addresses, then an adult who needs a base and keeps rebuilding it, announcing over Sunday lunch that the house is going on the market. Mars is in fall in Cancer, so anger tends to be stored and let out at home, and Uranus beside it makes the release sudden. That predicts a household that runs hot and changes shape, not a broken one.

Last, an invented chart with the Moon, Jupiter and Venus in Cancer. The Moon is in its own sign and Jupiter is exalted, so this is the easiest Cancer cluster to live with and the hardest to refuse: the house where everyone ends up at Christmas, the friend who lends money and never brings it up. It needs Jupiter in Cancer at birth (1954–55, 1965–67, 1977–79, 1989–90 or 2001–02), and Jupiter is in 28.1% of the sample's Cancer stelliums.

Every planet in Cancer reports to the Moon, so the first question is where the Moon is. In 27.7% of the sample's Cancer stelliums it is a member, and the cluster governs itself. When the Moon sits outside, its sign says what the Cancer planets are working for: a Moon in Capricorn sends the protectiveness into provision and duty, a Moon in Gemini turns it into talk and the family group chat. The Moon can change sign during the day of birth, so this is the one ruler whose sign may hinge on the birth time.

Cancer hosts all four classical conditions at once, and each turns up in the sample's clusters. The Moon is in domicile, Jupiter exalted (28.1% of Cancer stelliums), Saturn in detriment (16.5%) and Mars in fall (40.2%). Mars is the most frequent of the four, so the debilitated planet is the common case and the exalted one the luckier draw.

Fall describes a style, not a verdict. Mars in Cancer fights hardest for the home side and fights indirectly: the sulk, the slammed cupboard, repainting the hall at eleven at night instead of naming the grievance. In the Sun, Mercury and Mars set (8.3%) the temper becomes part of how the person talks, patient with clients and short with their own family. Saturn in detriment pulls the other way: the child who became the parent too early and now rations comfort because it once ran out.

Across the axis is Capricorn, where these four conditions reverse. The axis runs between home and public standing, and a person with a Cancer cluster often meets the Capricorn half in a boss, an institution, or a parent who measured love in results.

Count whole-sign houses from your rising sign and Cancer lands in a different house for each of the twelve, as the table below shows. Three risings put it on an angle other than the 1st.

With Aries rising, Cancer is the 4th house, its traditional partner, and a stellium there is home twice over: parents, property, ancestry and the private base. It suits someone who lives a few streets from where they grew up and knows who built each house. Mars rules an Aries Ascendant and is in fall in Cancer, so a Mars in this cluster puts the chart ruler at its least comfortable in the house of home.

With Libra rising, Cancer is the 10th, and the most private sign takes the most public seat. The career leans towards care, food, history, hospitality or a family firm, and the person runs a team the way other people run a household, which colleagues either love or find smothering.

With Capricorn rising, Cancer is the 7th. The partner carries the Cancer cluster, or the person marries into a family as much as a spouse. Saturn rules a Capricorn Ascendant and is in detriment in Cancer, so chart ruler and cluster pull against each other: the self is reserved, and the partnership is where the feeling lives.

For now the pressure comes from the side. Saturn is in Aries from 14 February 2026 to 13 April 2028, square Cancer. It turned retrograde on 26 July 2026 at 14°45′ Aries and turns direct on 11 December 2026 at 7°56′, so a Cancer planet between 8° and 15° is squared three times; a second loop, from 27°53′ on 9 August 2027 back to 21°01′ on 24 December 2027, does the same for 21° to 28°. A Saturn square tends to make an ageing parent or a cramped flat the problem that has to be solved properly. Jupiter, meanwhile, has just finished its exalted year in Cancer, 9 June 2025 to 30 June 2026.

The bigger date is further out. Uranus enters Cancer on 3 August 2032, slips back into Gemini on 12 December, re-enters on 22 May 2033 and stays until 6 August 2039, with a last visit from 25 February to 15 May 2040. For the 1949–1956 cohort this is the Uranus return, the planet back at its birth position about 84 years on. For everyone else with a Cancer cluster it is a first Uranus contact. Saturn is in Cancer too from 14 July 2032 to 27 August 2034, and again from 15 February to 11 May 2035, so from 3 August 2032 change and consolidation arrive in the same rooms together.

Counting all ten bodies, 4.13% of charts have three or more planets in Cancer, 0.77% have four and 0.08% have five. Drop Uranus, Neptune and Pluto and it is 3.26%. Keep only the Sun, Moon, Mercury, Venus and Mars and it is 1.90%, second lowest of the twelve signs after Pisces.

One figure tends to surprise. The Sun spends longer in Cancer than in any other sign, about 31 and a half days on average from 1950 to 2029, because Earth moves slowest around early July. Yet personal-planet Cancer stelliums are among the rarest, because the Sun's long stay decides nothing on its own: Mercury, Venus, Mars or the Moon have to be there with it.

Births here are spread evenly through 1950 to 2010, while real births are not, and Cancer is one of the commonest Sun signs in national records; anyone born after 2010 is outside the figures. A cluster that relies on the Moon needs a birth time. And a Gemini or Leo Sun with three planets in Cancer will often recognise this page more readily than their own Sun sign's.