Matt Damon is an American actor, producer and screenwriter, born in Massachusetts. He made his film debut in Mystic Pizza (1988) and appeared in School Ties (1992) before Courage Under Fire (1996) and The Rainmaker (1997) brought him notice. With Ben Affleck he wrote and starred in Good Will Hunting (1997); the two won the Oscar for best original screenplay at the 1998 ceremony, and Damon was nominated for best actor. Saving Private Ryan (1998) and The Talented Mr. Ripley (1999) followed, then Ocean's Eleven (2001) and The Bourne Identity (2002), which began two long-running series. He appeared in The Departed (2006), was nominated for an Oscar for Invictus (2009), and acted in True Grit (2010). The Martian (2015) won him a Golden Globe and a second Oscar nomination. Later roles include Ford v Ferrari (2019), Oppenheimer (2023) and the title part in The Odyssey (2026).
A birth certificate, quoted by Frances McEvoy
The Source Notes at Astro-Databank read: "Frances McEvoy quotes B.C." The initials stand for birth certificate.
The notes give no other hour, so 3:22 p.m. carries the chart. Boston ran on Eastern Daylight Time, four hours behind Greenwich.
| Point | Sign at birth | In that sign | Before and after |
|---|---|---|---|
| Rising sign | ♒︎ Aquarius | 3:04 p.m. to 4:27 p.m. | Capricorn before, Pisces after |
| Midheaven | ♏︎ Scorpio | 1:29 p.m. to 3:27 p.m. | Libra before, Sagittarius after |
| Moon | ♑︎ Capricorn | all day | n/a |
Rising sign, midheaven and Moon calculated by us, Boston, Massachusetts, Eastern Daylight Time (UTC-4).
Neptune at the zenith, with the midheaven about to change sign
The midheaven is 28°41′ Scorpio, and Scorpio held it from 1:29 p.m. until 3:27 p.m. Neptune stands just beyond it in the final degrees of Scorpio, in the 10th house under either system.
The tradition ties the 10th house to public standing, and a Neptune pressed against the zenith suggests a reputation formed by impressions as much as by facts.
Our pages: Neptune in Scorpio · Midheaven in Scorpio · 10th house · rising sign calculator.
Three earth planets closed into a trine
The Moon at 22°57′ of Capricorn, Mars at 22°36′ of Virgo and retrograde Saturn at 21°37′ of Taurus form a grand trine in earth. Moon to Mars is 0°21′ from exact, Mars to Saturn 1°00′ and Moon to Saturn 1°20′.
A closed trine in earth suggests an easy circuit that feeds itself, here with method and patience for craft. The three sit in different houses: the Moon in the 12th, Mars in the 7th by Placidus or the 8th by Whole Sign, and Saturn in the 3rd or the 4th.
Our pages: Moon in Capricorn · Mars in Virgo · Saturn in Taurus · 12th house.
Venus in Scorpio, the fourth point of a kite
Venus at 22°40′ of Scorpio sextiles Mars, 0°04′ from exact, the nearest to exact of all the aspects. It also sextiles the Moon, 0°17′ off, and opposes Saturn, 1°04′ off.
Astrologers call a grand trine with a fourth planet opposite one corner and sextile to the other two a kite. Venus is that planet, and its water suggests an outlet for the earth circuit toward other people. Placidus puts Venus and Jupiter, at 9°40′ of Scorpio, in the 9th house, while Whole Sign moves both to the 10th, next to Neptune.
Our pages: Venus in Scorpio · Jupiter in Scorpio · 9th house · 10th house.
Aquarius in the east, and a Moon in the 12th house
Aquarius held the Boston horizon from 3:04 p.m. to 4:27 p.m., and he was born 18 minutes after it rose, at 6°00′ Aquarius. Aquarius rising gives a cool, original first impression, and its older ruler is Saturn, the third corner of the earth trine.
The Moon spends the whole day in Capricorn, which it entered at 11:11 p.m. on October 6, and it falls in the 12th house under both systems, where the tradition puts what is held back or done out of view.
Our pages: Aquarius rising · Moon in Capricorn · moon sign calculator · Sun, Moon and rising together.
A Libra Sun beside Mercury and Uranus, filed in the 8th or 9th house
The Sun at 15°06′ of Libra shares the sign with Mercury at 1°46′ and Uranus at 9°34′, and joins Uranus within 5°32′. Libra weighs and balances, and Uranus beside the Sun suggests an independent streak in that search for balance. Placidus files all three under the eighth house, Whole Sign under the ninth.
The Sun squares the Moon, 7°51′ off, a square between two cardinal signs, which suggests friction between public poise and private reserve. Mercury sextiles Neptune, 2°44′ off, linking ideas to the planet by the zenith.
Our pages: Libra · Mercury in Libra · Uranus in Libra · 8th house · Ben Affleck's chart.
All major aspects between the planets in Matt Damon's chart
- Venus sextile Mars orb 0°04′
- Moon sextile Venus orb 0°17′
- Moon trine Mars orb 0°21′
- Mars trine Saturn orb 1°00′
- Venus opposition Saturn orb 1°04′
- Neptune sextile Pluto orb 1°08′
- Moon trine Saturn orb 1°20′
- Mercury sextile Neptune orb 2°44′
- Mercury conjunction Pluto orb 3°52′
- Moon trine Pluto orb 4°57′
- Venus sextile Pluto orb 5°13′
- Mars conjunction Pluto orb 5°17′
- Sun conjunction Uranus orb 5°32′
- Moon sextile Neptune orb 6°05′
- Saturn trine Pluto orb 6°17′
- Venus conjunction Neptune orb 6°22′
- Saturn opposition Neptune orb 7°25′
- Mercury conjunction Uranus orb 7°48′
- Sun square Moon orb 7°51′
- Moon trine Mercury orb 8°49′
Orbs: 8° for conjunction, opposition, square and trine, 6° for sextile, 2° more when the Sun or Moon is involved; Node, Lilith, Ascendant and Midheaven not counted. Same rules as our birth chart calculator.
Questions about Matt Damon's chart
What is Matt Damon's rising sign?
Aquarius, at 6°00′ Aquarius, which held the horizon from 3:04 p.m. to 4:27 p.m.
Is his Sun in Libra?
Yes, at 15°06′, together with Mercury and Uranus.
Which sign holds his Moon?
Capricorn, at 22°57′, in the 12th house. The Moon entered the sign at 11:11 p.m. on October 6.
When was Matt Damon born?
At 3:22 p.m. on October 8, 1970, per a certificate quoted to Astro-Databank by Frances McEvoy.
Where is Neptune in his chart?
Right beside the midheaven, 0°22′ ahead of it.
Which pair is nearest to exact?
Venus and Mars in a sextile, only 0°04′ away.
Sources
- Astronomy Engine: the open-source ephemeris library behind our planet positions, dates and statistics
- Astro-Databank (Astrodienst): published birth charts we test the calculation against
- How we create our readings: our own calculation of sign dates, positions and the 1930 to 2025 statistics
More celebrity birth charts
Charts closest to this one, sharing the Sun sign, the rising sign or the Moon: Kim Kardashian · Will Smith · Doja Cat · Dakota Johnson · Travis Kelce · Addison Rae · Jenna Ortega · Bella Hadid · Gwyneth Paltrow · Usher · Gwen Stefani · Serena Williams. All 143 charts with their sources and Rodden ratings: celebrity birth charts.
Astrology is a symbolic tradition, not a science. This page explains what the tradition says about the placements in a published chart; it makes no claims about Matt Damon's character, health or private life. Birth data: Astro-Databank (Astrodienst), checked October 20, 2026. Positions: our calculation with the astronomy-engine ephemeris; it matches the Sun, Moon and ascendant degrees Astro-Databank publishes for this chart to within one arc minute.