2027 Forecast

Synastry aspect · 0° · orb 8°

Mars Conjunction Sun Synastry

Mars conjunction Sun in synastry means one partner's Mars sits within 8° of the other's Sun, a contact read as fusion. It turns up in 4.45% of couples born within five years of each other.

Each side on its own first: Mars in a birth chart, Sun in a birth chart and birth chart calculator.

In couples
4.45% about 1 in 22
Either way round
8.66% both ways: 0.24%
Angle
0° same degree · orb ±8°
Birth time
Not needed the date sets it

Simulation of 3 million couples, NASA JPL DE440.

The same aspect with one of these planets: Mars conjunction Moon, Mars conjunction Pluto, Moon conjunction Sun, Mercury conjunction Sun, Sun conjunction Venus and Sun conjunction Uranus.

Mars Conjunction Sun Synastry: Meaning and How Common It Is

Checked against chance

How common is Mars conjunction Sun in synastry?

Mars conjunction Sun, counted three ways
Mars conjunction Sun, counted three ways Mars conjunction Sun, counted three ways: Couples ≤ 5 yrs apart 4.45%, Any two people, 1940–2010 4.46%, Planets spread evenly 4.44%. Couples ≤ 5 yrs apartCouples ≤ 5 yrs apart: 4.45%4.45%Any two people, 1940–2010Any two people, 1940–2010: 4.46%4.46%Planets spread evenlyPlanets spread evenly: 4.44%4.44%Source: AstroHot simulation, 3 million pairs, NASA JPL DE440astrohot.com Couples ≤ 5 yrs apartCouples ≤ 5 yrs apart: 4.45%4.45%Any two people, 1940–2010Any two people, 1940–2010: 4.46%4.46%Planets spread evenlyPlanets spread evenly: 4.44%4.44%Source: AstroHot simulation, 3 million pairs, NASA JPL DE440astrohot.com

Born the same year or 39 years apart, couples land between 4.34% and 4.52%.

How the odds are calculated →

By sign

Which signs make Mars conjunction Sun

Sign pairs that make Mars conjunction Sun (shaded)
Sign pairs that make Mars conjunction Sun (shaded) Mars in Aries: Sun in Aries; Mars in Taurus: Sun in Taurus; Mars in Gemini: Sun in Gemini; Mars in Cancer: Sun in Cancer; Mars in Leo: Sun in Leo; Mars in Virgo: Sun in Virgo; Mars in Libra: Sun in Libra; Mars in Scorpio: Sun in Scorpio; Mars in Sagittarius: Sun in Sagittarius; Mars in Capricorn: Sun in Capricorn; Mars in Aquarius: Sun in Aquarius; Mars in Pisces: Sun in Pisces. Sun’s sign →Mars’ sign →AriTauGemCanLeoVirLibScoSagCapAquPisAriMars in Aries, Sun in Aries — forms itMars in Aries, Sun in TaurusMars in Aries, Sun in GeminiMars in Aries, Sun in CancerMars in Aries, Sun in LeoMars in Aries, Sun in VirgoMars in Aries, Sun in LibraMars in Aries, Sun in ScorpioMars in Aries, Sun in SagittariusMars in Aries, Sun in CapricornMars in Aries, Sun in AquariusMars in Aries, Sun in PiscesTauMars in Taurus, Sun in AriesMars in Taurus, Sun in Taurus — forms itMars in Taurus, Sun in GeminiMars in Taurus, Sun in CancerMars in Taurus, Sun in LeoMars in Taurus, Sun in VirgoMars in Taurus, Sun in LibraMars in Taurus, Sun in ScorpioMars in Taurus, Sun in SagittariusMars in Taurus, Sun in CapricornMars in Taurus, Sun in AquariusMars in Taurus, Sun in PiscesGemMars in Gemini, Sun in AriesMars in Gemini, Sun in TaurusMars in Gemini, Sun in Gemini — forms itMars in Gemini, Sun in CancerMars in Gemini, Sun in LeoMars in Gemini, Sun in VirgoMars in Gemini, Sun in LibraMars in Gemini, Sun in ScorpioMars in Gemini, Sun in SagittariusMars in Gemini, Sun in CapricornMars in Gemini, Sun in AquariusMars in Gemini, Sun in PiscesCanMars in Cancer, Sun in AriesMars in Cancer, Sun in TaurusMars in Cancer, Sun in GeminiMars in Cancer, Sun in Cancer — forms itMars in Cancer, Sun in LeoMars in Cancer, Sun in VirgoMars in Cancer, Sun in LibraMars in Cancer, Sun in ScorpioMars in Cancer, Sun in SagittariusMars in Cancer, Sun in CapricornMars in Cancer, Sun in AquariusMars in Cancer, Sun in PiscesLeoMars in Leo, Sun in AriesMars in Leo, Sun in TaurusMars in Leo, Sun in GeminiMars in Leo, Sun in CancerMars in Leo, Sun in Leo — forms itMars in Leo, Sun in VirgoMars in Leo, Sun in LibraMars in Leo, Sun in ScorpioMars in Leo, Sun in SagittariusMars in Leo, Sun in CapricornMars in Leo, Sun in AquariusMars in Leo, Sun in PiscesVirMars in Virgo, Sun in AriesMars in Virgo, Sun in TaurusMars in Virgo, Sun in GeminiMars in Virgo, Sun in CancerMars in Virgo, Sun in LeoMars in Virgo, Sun in Virgo — forms itMars in Virgo, Sun in LibraMars in Virgo, Sun in ScorpioMars in Virgo, Sun in SagittariusMars in Virgo, Sun in CapricornMars in Virgo, Sun in AquariusMars in Virgo, Sun in PiscesLibMars in Libra, Sun in AriesMars in Libra, Sun in TaurusMars in Libra, Sun in GeminiMars in Libra, Sun in CancerMars in Libra, Sun in LeoMars in Libra, Sun in VirgoMars in Libra, Sun in Libra — forms itMars in Libra, Sun in ScorpioMars in Libra, Sun in SagittariusMars in Libra, Sun in CapricornMars in Libra, Sun in AquariusMars in Libra, Sun in PiscesScoMars in Scorpio, Sun in AriesMars in Scorpio, Sun in TaurusMars in Scorpio, Sun in GeminiMars in Scorpio, Sun in CancerMars in Scorpio, Sun in LeoMars in Scorpio, Sun in VirgoMars in Scorpio, Sun in LibraMars in Scorpio, Sun in Scorpio — forms itMars in Scorpio, Sun in SagittariusMars in Scorpio, Sun in CapricornMars in Scorpio, Sun in AquariusMars in Scorpio, Sun in PiscesSagMars in Sagittarius, Sun in AriesMars in Sagittarius, Sun in TaurusMars in Sagittarius, Sun in GeminiMars in Sagittarius, Sun in CancerMars in Sagittarius, Sun in LeoMars in Sagittarius, Sun in VirgoMars in Sagittarius, Sun in LibraMars in Sagittarius, Sun in ScorpioMars in Sagittarius, Sun in Sagittarius — forms itMars in Sagittarius, Sun in CapricornMars in Sagittarius, Sun in AquariusMars in Sagittarius, Sun in PiscesCapMars in Capricorn, Sun in AriesMars in Capricorn, Sun in TaurusMars in Capricorn, Sun in GeminiMars in Capricorn, Sun in CancerMars in Capricorn, Sun in LeoMars in Capricorn, Sun in VirgoMars in Capricorn, Sun in LibraMars in Capricorn, Sun in ScorpioMars in Capricorn, Sun in SagittariusMars in Capricorn, Sun in Capricorn — forms itMars in Capricorn, Sun in AquariusMars in Capricorn, Sun in PiscesAquMars in Aquarius, Sun in AriesMars in Aquarius, Sun in TaurusMars in Aquarius, Sun in GeminiMars in Aquarius, Sun in CancerMars in Aquarius, Sun in LeoMars in Aquarius, Sun in VirgoMars in Aquarius, Sun in LibraMars in Aquarius, Sun in ScorpioMars in Aquarius, Sun in SagittariusMars in Aquarius, Sun in CapricornMars in Aquarius, Sun in Aquarius — forms itMars in Aquarius, Sun in PiscesPisMars in Pisces, Sun in AriesMars in Pisces, Sun in TaurusMars in Pisces, Sun in GeminiMars in Pisces, Sun in CancerMars in Pisces, Sun in LeoMars in Pisces, Sun in VirgoMars in Pisces, Sun in LibraMars in Pisces, Sun in ScorpioMars in Pisces, Sun in SagittariusMars in Pisces, Sun in CapricornMars in Pisces, Sun in AquariusMars in Pisces, Sun in Pisces — forms itSource: tropical zodiac, counted by signastrohot.com

To check it by degree: Mars at 10° Cancer makes the conjunction with the Sun anywhere from 2° to 18° of Cancer — the 0° angle give or take 8°. The grid goes by sign, but the conjunction also forms across a sign line: Mars at 1° Cancer and the Sun at 29° Gemini are 2° apart.

Between two people

What does Mars conjunction Sun mean in synastry?

Purpose and drive combine into a single push. Energetic and warm, with a short fuse when plans are frustrated. The pair push each other forward and get a great deal done together. When plans are blocked, tempers flare quickly; agreeing who leads where, and taking time out when frustrated, keeps the energy constructive.

The usual mistake

Where does Mars conjunction Sun usually go wrong?

One push, one direction, and a short fuse when it is blocked. The Sun person's plans and the Mars person's drive merge, and nobody knows whose idea it was.

Over time

How Mars conjunction Sun plays out over time

  1. Early on. Purpose and drive merge, and the pair push each other forward from the start.
  2. Under pressure. The shared fuse is short when plans are blocked.
  3. Years in. A great deal gets done together; cooling off before reacting helps.

Who feels it

Who feels Mars conjunction Sun more?

The Sun person usually feels a Sun–Mars conjunction as being energized, or challenged, at the level of identity: the Mars person pushes, competes with or champions who they are. The Mars person feels the Sun person as a target for their drive, which can be attraction or rivalry. Tradition reads the Sun person as feeling it more in self-confidence, the Mars person more in the body and temper.

Mars and Sun at other angles

At any angle: One person's identity and purpose meeting the other's drive. This pairing decides whether the two energize each other or compete for the same space.

The conjunction among the Mars–Sun angles, % of couples
The conjunction among the Mars–Sun angles, % of couples The conjunction among the Mars–Sun angles, % of couples: Conjunction 0° 4.45%, Sextile 60° 6.69%, Square 90° 8.88%, Trine 120° 8.91%, Quincunx 150° 3.33%, Opposition 180° 4.44%. Conjunction 0°Conjunction 0°: 4.45%4.45%Sextile 60°Sextile 60°: 6.69%6.69%Square 90°Square 90°: 8.88%8.88%Trine 120°Trine 120°: 8.91%8.91%Quincunx 150°Quincunx 150°: 3.33%3.33%Opposition 180°Opposition 180°: 4.44%4.44%Source: AstroHot simulation, 3 million pairs, NASA JPL DE440astrohot.com Conjunction 0°Conjunction 0°: 4.45%4.45%Sextile 60°Sextile 60°: 6.69%6.69%Square 90°Square 90°: 8.88%8.88%Trine 120°Trine 120°: 8.91%8.91%Quincunx 150°Quincunx 150°: 3.33%3.33%Opposition 180°Opposition 180°: 4.44%4.44%Source: AstroHot simulation, 3 million pairs, NASA JPL DE440astrohot.com
Opposition 180° · 4.44% of couples Square 90° · 8.88% of couples Sextile 60° · 6.69% of couples Trine 120° · 8.91% of couples Quincunx 150° · 3.33% of couples

Next to Mars conjunction Sun in our list of 382, which runs from the most asked-about down.

Lilith sextile Mars 60° · 6.76% of couples Saturn sextile Sun 60° · 6.67% of couples Pluto opposition Venus 180° · 4.32% of couples Venus trine Vertex 120° · 8.89% of couples

Cite this page

AstroHot. “Mars Conjunction Sun Synastry: Meaning and How Common It Is.” Accessed October 29, 2026. https://astrohot.com/synastry/aspects/mars-conjunction-sun/

For Wikipedia {{cite web |title=Mars Conjunction Sun Synastry: Meaning and How Common It Is |url=https://astrohot.com/synastry/aspects/mars-conjunction-sun/ |website=AstroHot |access-date=2026-10-29}}