Personal transit calendar
The personal transit calendar lists the days when planets in the sky make an exact aspect to the planets in your birth chart. You see at a glance which themes come forward on which dates.
Moon transits happen almost every day, so they are left out; the major aspects of the other planets, from the Sun to Pluto, are shown.
Quick answer
- What is a transit?
- A planet moving in the sky now making an aspect to a point in your birth chart.
- Which planets are listed?
- Sun, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto; the Moon is left out because it makes aspects every day.
- Which aspects?
- Conjunction (0°), sextile (60°), square (90°), trine (120°) and opposition (180°).
- How far ahead?
- The next 3 months without an account; 12 months and a printable PDF for free members.
- Which date is shown?
- The day the aspect is exact (the exact hit).
- Durations
- Fast-planet transits last days, Jupiter and Saturn weeks, Uranus, Neptune and Pluto months.
What is a transit?
A transit is a planet moving in the sky now forming a specific angle with a planet or point in your birth chart. It is astrology's most widely used method for interpreting periods and timing.
Your birth chart is a fixed snapshot of the moment you were born; the planets keep moving. Relationships such as transiting Saturn squaring your natal Sun or transiting Jupiter conjoining your natal Venus are used to describe when the themes in your chart come to the fore.
What is a personal transit calendar?
A personal transit calendar lists, in date order, the days when the planets will make exact aspects to the planets in your birth chart. AstroSitus calculates it free from your birth details.
Horoscope columns look only at the Sun sign; a personal transit calendar uses every planetary position at the moment of birth. That is why two people with the same Sun sign have completely different calendars. The calendar lets you see at a glance which themes stand out on which dates and plan important days ahead.
Which transits matter most?
Transits of the slow planets describe longer, more pronounced periods; transits of the fast planets describe short-lived triggers.
- Fast planets (Sun, Mercury, Venus, Mars)
- Effects lasting a few days: mood, communication, social life and energy. Also read as days that trigger a major slow transit.
- Social planets (Jupiter, Saturn)
- Periods lasting weeks to months: growth and opportunity (Jupiter), responsibility and structure (Saturn).
- Outer planets (Uranus, Neptune, Pluto)
- Deep periods lasting months or even a year or two: change, uncertainty and transformation.
- Transits to personal points
- Transits to the natal Sun, Moon, Ascendant and MC are usually the most strongly felt.
What do the transit aspects mean?
The calendar lists five major aspects. In astrology each has its own tone:
- Conjunction (0°)
- A starting point where two planets' energies merge; the strongest aspect.
- Sextile (60°)
- Opportunity and ease; doors that open when you make an effort.
- Square (90°)
- Tension and pressure to act; periods that call for decisions and effort.
- Trine (120°)
- Flow and harmony; times when things go smoothly.
- Opposition (180°)
- Encounter and balance; issues becoming visible through relationships and the outside world.
What is an orb, and what are applying and separating transits?
An orb is the range of degrees within which an aspect is considered active. While a planet approaches the exact aspect the transit is applying; once it has passed and moves away it is separating.
In interpretive tradition transits are mostly considered within a 1–3 degree orb, and an applying transit is held to be felt more strongly. The calendar shows the day the aspect is exact; for fast planets the active period is a day or two either side, for slow planets it can last weeks or months.
Why do retrograde transits appear more than once?
When a planet goes retrograde it can cross the same degree three times, forward, backward and forward again, so the same transit reappears in the calendar a few months apart.
Astrology reads the three hits as stages of a single process: the issue opens at the first hit, is reviewed at the retrograde hit and resolves at the last. This is very common with the slow planets from Jupiter to Pluto, and also happens with Mercury, Venus and Mars during their retrograde periods.
How to read a personal transit calendar
When reading the calendar, look first at the slow-planet transits, then at the fast-planet days that trigger them.
- Identify the main themes
- Saturn, Uranus, Neptune and Pluto transits set the overall frame of the period.
- Find the triggers
- Aspects from Mars, the Sun or Mercury to the same point show the days when the theme is most pronounced.
- Look at the aspect's tone
- Squares and oppositions speak of effort and decisions, trines and sextiles of ease and opportunity.
- Read it with your birth chart
- The house a transiting planet moves through in your birth chart tells you which area of life the issue concerns.
How does AstroSitus calculate the transit calendar?
AstroSitus casts your birth chart with its own ephemeris engine, then searches the coming months for the moments when each transiting planet makes one of the five major aspects to your natal planets exactly.
The historical time zone and daylight saving of your birthplace are found automatically. The exact moment is calculated for each aspect and the results are grouped by month. Moon transits happen almost daily, so they are left out. Without a birth time the calculation still works, but the Moon's position and the houses remain uncertain.
Common misconceptions about transits
Transits do not determine events in advance, and "hard" aspects do not mean bad events.
- "A square transit means bad luck."
- A square spurs action; it is often when the most productive work gets done.
- "A transit happens on its date and is over."
- The exact day is the peak; with slow planets the influence spreads over weeks or months.
- "Horoscopes are the same as personal transits."
- Horoscopes look only at the Sun sign; a personal transit calendar uses your whole birth chart.
How to get your personal transit calendar, step by step
The AstroSitus personal transit calendar is free; 3 months are visible without an account and 12 months for free members.
Enter your birth details
Type your birth date, time and place, or pick one of your saved charts.
Calculate the calendar
AstroSitus finds the exact aspects in the coming months and sorts them by month.
Review the transits
Each row shows the transiting planet, the aspect, the natal planet and the date.
Save or print
As a free member you can print the 12-month calendar or save it as a PDF.
Glossary
- Transit
- A moving planet forming an aspect to a point in your birth chart.
- Natal planet
- A planet's position at the moment of birth.
- Orb
- The range of degrees within which an aspect is considered active.
- Applying transit
- A transit approaching the exact aspect; usually felt more strongly.
- Separating transit
- A transit that has passed the exact aspect and is moving away.
- Retrograde
- The period when a planet appears to move backward as seen from Earth.
- Major aspects
- Conjunction, sextile, square, trine and opposition.
Related tools
Join free: in-depth readings and the AI astrologer
This calculator works without an account. A free membership adds deeper interpretations and personal tools on top of the same calculations.
- A detailed reading for every return, square and opposition in the Saturn, Jupiter and Uranus cycles
- 12 months instead of 3 in the personal transit calendar, plus a printable PDF
- Unlimited saved charts: calculate with one click instead of filling in the form each time
- Natal, transit, synastry and composite charts
Ask the AI astrologer
AstroSitus's AI astrologer section hosts advisors trained in the methods of history's great astrologers. The advisor open today is inspired by William Lilly, the famous 17th-century horary astrologer: you type your question, the chart of the moment you asked is cast with our own ephemeris engine, and the advisor gives a reasoned answer by Lilly's rules.
AI astrology consultations, the AI counterpart of asking an online astrologer, are open to free members with a daily question allowance; relationship and tarot advisors are in preparation. AI readings follow the masters' methods and are not their words; they do not replace professional advice on health, legal or financial decisions.
Frequently asked questions
What is a transit?
It is a planet moving in the sky now making an aspect to a point in your birth chart. Astrology uses transits to interpret periods and timing.
What is a personal transit calendar?
It is a calendar that lists, in date order, the days when the planets make exact aspects to the planets in your birth chart. AstroSitus calculates it free from your birth details.
How far ahead does the calendar go?
The next three months are visible without an account. Free members see twelve months and can print the calendar or save it as a PDF.
Which aspects are listed?
Conjunction, sextile, square, trine and opposition; the day the aspect is exact is shown.
Why are there no Moon transits?
The Moon circles the zodiac in about 27.3 days and aspects points in your birth chart almost every day; it is left out so it doesn't swamp the calendar.
How long does a transit last?
It depends on the planet's speed: Sun, Mercury, Venus and Mars transits last a few days; Jupiter and Saturn weeks; Uranus, Neptune and Pluto months. Retrograde motion lengthens them.
What is an orb?
It is the range of degrees within which an aspect is considered active. For transits 1–3 degrees is common; the calendar shows the day the aspect is exact (0 degrees).
Why does the same transit appear more than once?
When a planet goes retrograde it can cross the same degree three times. Astrology reads these hits as the opening, review and resolution stages of one process.
Which transits are the most important?
Transits of Saturn, Uranus, Neptune and Pluto to the natal Sun, Moon, Ascendant and MC usually describe the most pronounced periods.
Is the transit calendar accurate without a birth time?
Aspects to the planets are largely accurate. However, the natal Moon's position can shift by several degrees and the houses cannot be known.
What is the difference between a transit calendar and a horoscope?
Horoscopes are written for the Sun sign only. A personal transit calendar uses every planet in your birth chart, so it is entirely personal.
Is the personal transit calendar free?
Yes. The three-month calendar needs no account; the twelve-month calendar and PDF export come with free membership.
Can an AI astrologer interpret my transits?
In AstroSitus's AI astrologer section, the horary advisor inspired by William Lilly is open to free members. You can ask a concrete question about a period you see in your calendar; the advisor gives a reasoned answer from the chart of the moment you asked.
Can an AI astrologer read my birth chart?
For AI birth chart readings, AstroSitus is preparing a relationships and birth chart advisor inspired by Evangeline Adams; it is not open yet. The William Lilly advisor open today works with horary astrology: instead of your birth chart, it reads the chart of the moment you ask. Just type your question as you would to an online astrologer; free members get a daily question allowance.