What Is Aries Ingress?
Aries Ingress is the moment the Sun enters 0° Aries -- the starting point of the zodiac. Astronomically, this moment corresponds to the spring equinox, the liminal moment when day and night are equal and nature begins anew.
In mundane astrology, Aries Ingress has been regarded as the "astrological new year" for thousands of years, and the chart for this moment is evaluated as the fundamental indicator of the year for a nation.
History: An Ancient Tradition
The special recording of the moment the Sun enters 0° Aries goes back to the MUL.APIN tablets (~1000 BCE). Babylonian astronomers used the spring equinox as the zero point of the calendar and observations.
This tradition passed through Egyptian, Persian, and Indian traditions to reach the Hellenistic world; from Ptolemy to Abu Ma'shar, from Masha'allah to Bonatti, the great names of mundane astrology evaluated this moment's chart as the fundamental indicator of a nation's year.
Nowruz, the new year celebration still observed at the spring equinox in Iranian and Central Asian cultures, is living proof of this tradition.
How to Cast an Ingress Chart
Three pieces of information are required to cast an Aries Ingress chart:
1. Time: The exact moment the Sun enters 0°00'00" Aries (calculated using astronomy software). For 2026, this moment is: March 20, 2026.
2. Location: The city for which the chart will be cast. For mundane interpretation, the capital city is always used.
3. House system: In classical mundane astrology, the Whole Sign house system is generally preferred. Some astrologers prefer the Regiomontanus or Alcabitius house systems.
How to Interpret an Ingress Chart
A two-layered analysis is conducted in interpreting the Ingress chart:
Layer 1 -- The chart's internal structure: The Ascendant sign and its ruler (the Lord of the Year), planetary house positions, aspects, and rulership chains are examined. This layer reveals the year's general atmosphere, power balances, and critical areas.
Layer 2 -- Transit interaction with the country's natal chart: The planets in the Ingress chart are projected and analyzed over the country's natal chart. This layer shows the country-specific reflection of events.
For a detailed application example, you can explore our 2026 Aries Ingress analysis.
Chart Validity Period
In classical mundane astrology, the Ingress chart's validity period is determined by the modality of the Ascendant's sign:
| Ascendant Modality | Validity | Explanation |
|---|---|---|
| Fixed Sign (Taurus, Leo, Scorpio, Aquarius) | 12 months | This single chart is valid for the entire year |
| Mutable Sign (Gemini, Virgo, Sagittarius, Pisces) | 6 months | A new chart is cast at the Libra Ingress |
| Cardinal Sign (Aries, Cancer, Libra, Capricorn) | 3 months | A new chart at each ingress (Aries, Cancer, Libra, Capricorn) |
2026 Aries Ingress: Why Is It So Special?
The 2026 Aries Ingress is not an ordinary annual chart. Three factors make it unique:
1. The Saturn-Neptune conjunction occurred just 28 days earlier in the same sign (Aries). The energy of this 36-year cycle directly reflects in the Ingress chart.
2. It overlaps with eclipse season. The February eclipse and Mercury retrograde fall within the same cosmic window.
3. Uranus is about to change signs -- it will enter Gemini in April. Even at the beginning of the year, this transition energy is palpable.
This triple convergence makes 2026 one of the most intense years in mundane astrology history.