Partial Solar Eclipse and New Moon: September 21, 2025

September 03, 2025

Image placeholder: Solar eclipse visualization

A partial solar eclipse will occur on September 21, 2025 — the second eclipse of the month and the last of the year. It is also the fourth in a series of eclipses occurring along the Virgo-Pisces axis.

1.What is a Partial Solar Eclipse?

2.Timing and Visibility

3.Astronomical Data

4.Astrological Analysis

5.Eclipse in Your Birth Chart

6.When is the Next Solar Eclipse?

7.FAQ

What is a Partial Solar Eclipse?

Solar eclipses occur during New Moons, but only when the Sun and Moon align very closely with one of the Moon's orbital nodes.

This New Moon in Virgo emphasizes renewal, discernment, and practical change — themes that shape how this eclipse energy will manifest in daily life.

A partial solar eclipse happens when the Moon passes between the Sun and Earth, but the alignment isn’t perfect. The Moon’s umbra (full shadow) misses Earth, and only its penumbra (partial shadow) reaches us. To observers, it appears as if the Moon takes a “bite” out of the Sun.

The extent of this "bite" is measured by the eclipse's magnitude — the fraction of the Sun’s diameter covered by the Moon.

Timing and Visibility

The partial solar eclipse will be visible only in remote regions:

The southern Pacific Ocean
New Zealand
Antarctica
Australia (southern and southeastern coast)
Parts of the southern Atlantic Ocean

The greatest eclipse, where about 85% of the Sun’s diameter is covered, occurs at 19:42 UTC over the South Pacific.

Eclipse Stages	Universal Time	Eastern Daylight Time	Easter European Summer Time
Beginning of Eclipse	Sept 21, 17:29:43 UTC	Sept 21, 13:29:43 EDT	Sept 21, 20:29:43 EEST
Maximum Eclipse	Sept 21, 19:41:59 UTC	Sept 21, 15:41:59 EDT	Sept 21, 22:41:59 EEST
End of Eclipse	Sept 21, 21:53:45 UTC	Sept 21, 17:53:45 EDT	Sept 22, 00:53:45 EEST

⚠️ Safety Warning: Never look directly at the Sun without proper protection. Use certified solar eclipse glasses or filters.

Astronomical Data

The following precise data defines the geometry of the September 21, 2025, partial solar eclipse:

Magnitude: ~0.8550 (Sun’s diameter fraction covered)
Obscuration: ~0.7969 (Sun’s area fraction obscured)
Gamma (γ): –1.0651 (Moon’s shadow passes south of Earth’s center → partial eclipse
Saros Series: 154, eclipse #7 of 71
Brown Lunation Number: 1271
Overall Eclipse Duration : ~4 h 24 min

Astrological Analysis

Natal chart for Partial Solar Eclipse on September 21, 2025 — 28°59' Virgo (Null Island, 0°N 0°E)

Partial Solar eclipse September 21, 2025

September 21, 2025, at 19:42 UTC, 0°0'N, 0°0'E

The September 21 Eclipse is also the Virgo New Moon, which heightens emotions and signals powerful new beginnings.

This eclipse is partial — the Moon does not completely cover the Sun and does not make an exact merger with the lunar karmic node (South Node). This tempers its intensity and makes its influence less potent.

Its influence is profoundly amplified by its coincidence with the September equinox— the moment when day and night are in balance, marking a shift of seasons. Such an alignment symbolizes balance, transition, and new beginnings on a global scale.

This period invites a confrontation with egotistical needs and desires, offering an opportunity to reconsider and refine our relationships, attitudes, and behaviors toward others.

Virgo Sign Emphasis

At a critical anaretic degree (28°59' Virgo), this eclipse highlights urgency and the need to resolve lingering issues. The emphasis is on proactive review and making a choice. It encourages us to:

Build and reinforce personal boundaries to protect your energy and well-being
Examine and improve health habits, with a strong focus on wellness procedures and disease prevention
Optimize work rhythms and daily routines
Be careful when communicating with relatives and colleagues at work
Dedicate time to creative projects and hands-on work, like gardening, crafting, or repairing things
Find ways to save money by cutting unnecessary expenses and budgeting wisely
Release superfluous habits, obligations, and clutter that hinder growth
Move away from self-criticism toward practical improvement
Provide meticulous care for pets - unforeseen situations may arise, requiring increased attention

Virgo’s energy can be highly productive and service-oriented, but it also tends toward extremes. This eclipse can manifest positively as impeccable service and high efficiency, or negatively as a tense atmosphere, hard work that leads to burnout, competition between employees, and workplace intrigue.

The themes of health, discipline, service, and attention to detail come to the forefront. This energy allows us to clearly identify shortcomings in our plans and habits and provides the impetus to improve them.

Any stress during this period may directly impact health — maintaining stability and routine is essential.

On a public level, the eclipse's effects are considered most potent in countries where it is visible and in all nations astrologically ruled by Virgo.

Planetary Influences

Mercury in Virgo: Combust by the Sun

The ruling planet of Virgo, Mercury, is extremely close to the Sun and invisible —its ability to provide accurate perception is compromised, distorting the real state of affairs. This proximity amplifies the potential for unclear agreements, misunderstandings, intrigues, and deception in the coming months. The energy particularly affects partnerships, business dealings, legal contracts, and any situation requiring negotiation and relations. It can also manifest practically as internet problems, travel delays, and vehicle breakdowns.

Saturn retrograde in Pisces: Opposing eclipse

Retrograde in Pisces, Saturn opposes the Sun and emphasizes the eclipse degree. This opposition brings intense themes of responsibility, restructuring, and feelings of pressure to impose order or enact change.

Neptune retrograde in Aries: Opposing eclipse

Neptune can create confusion and illusion but also provides significant opportunities for spiritual transformation and creative inspiration.

Uranus & Pluto: Supportive aspects

The energies of Uranus and Pluto are supportive rather than destructive. Both planets strengthen intuition and provide impulses for sudden insights. This synergy drives a deep, brilliant transformation, precisely facilitating the growth and necessary changes initiated by the eclipse.

Venus in Virgo: In Fall

The weak position of Venus can trigger a direct path to dissatisfaction with oneself, especially regarding one’s social life, financial situation, or sense of worth. This may manifest as struggles in relationships and artistic blocks.

Mars in Libra: In Detriment

During the eclipse, Mars is in a weak position in the initial degrees of Libra. This placement may provoke open confrontation in family or business relationships, and can be an indication of litigation or disputes. However, Libra offers a diplomatic path to resolution. This placement challenges us to solve tasks through balance, fairness, and collaboration rather than force. Ultimately, it fuels a desire for clarity and definiteness—but aims to achieve it through tact and negotiation.

The September 21st solar eclipse signals a pivot point: time to reassess priorities, shed obsolete structures, and make practical improvements.

Eclipse in Your Birth Chart

The impact of any eclipse is highly personal, depending on its aspects to your natal planets and angles. The September 21st solar eclipse at 29° Virgo emphasizing transformation in the key themes of this earth sign. Its energy encourages liberation from limiting past patterns, allowing you to move forward and unlock your growth potential.

This eclipse strongly affects mutable signs — Virgo, Pisces, Gemini, and Sagittarius.

How to Determine Its Influence

To understand which area of your life will be most activated, follow these steps:

1. Locate 29° Virgo in your natal chart.
2. Allow 5° orb (24°–30° Virgo). 3. Identify which House this degree falls in.

The house shows which area of life will be most activated — career, relationships, health, finances, etc.

Interpreting the Energy

Virgo’s analytical energy encourages grounded changes: refining habits, eliminating waste, and improving systems. The effects unfold over six months, until the next eclipse season.

When is the Next Solar Eclipse?

The next solar eclipse occurs on February 17, 2026 — an annular “ring of fire” eclipse in Aquarius, emphasizing:

Technological progress
Social innovation and reform
Breaking from outdated traditions

Frequently Asked Questions

How long do eclipse effects last?

The effects of a solar eclipse are typically felt for approximately six months, until the next eclipse season.

Where will the September 21, 2025 eclipse be visible?

Mostly over the southern Pacific Ocean, New Zealand, Antarctica, and parts of southern Australia and the Atlantic. It will not be visible from most of Europe, Africa, Asia, or North America.