Will he come back? Here is what astrology can actually compute
Short answer: no chart can tell you whether he comes back. Controlled studies have not shown astrology predicts events, and any reading that promises a yes is selling you the yes.
What can be computed is timing: the days when the moving planets touch the tight contacts between your two charts, the moments astrologers traditionally treat as favourable for reaching out, and the ones they treat as favourable for patience. That is a calendar, not a verdict, and it works even if you do not know his birth time.
Why 'is he coming back' pulls people to astrology in the first place
The question is about timing more than outcome. You want to know when to text, when to wait, when the door is open. Synastry, the astrology of two charts, has a long practitioner tradition of watching transits to the contacts between two people, because a tight cross-chart contact gets hit by one transit and both people feel it at once.
Venus retrograde is the classic 'exes reappear' period in that tradition. In 2026 Venus is retrograde for about 42 days, from October 3 to November 13 (Americas) or November 14 (UT, Europe, Asia). Nothing in that statement predicts a person; it describes the sky.
What the calculator below shows
Enter both birth dates (his time optional). You get the contacts between the charts within 2 degrees, each labelled with its orb, and a 14-day strip of green, amber and red days computed from transits to both charts, to those contacts and to the composite. Every colour comes with its top three reasons, and every reason is a computed contact.
If a day is red, the astrology traditionally favours patience. If it is green, it traditionally favours connection. That is the whole claim.
What to do with a red week
Treat it as weather: wear a coat, do not cancel your life. A red week is a poor moment to send the long message, not evidence about his feelings. A calm window, where nothing clears either bar, is the most common result and the honest one.
Compute your two charts (his birth time optional)
Synastry calculator (no partner birth time needed)
Get your 90-day calendar when Cosmea opens
Cosmea is in the works. Join the waitlist and be first to see your green and red dates for you two, computed from both charts.
FAQ
Can astrology tell me if my ex will come back?
No. It can compute when transits touch the contacts between your two charts, which astrologers traditionally read as favourable for connection or for patience. It cannot compute a person's choice.
Do I need his birth time?
No. Without it, his chart is computed at noon and his Moon is shown with a 7-degree uncertainty and scored at half weight. Everything else is placed by date.
Does 'no contact' change the astrology?
The sky does not know about no contact. The calendar tells you when the astrology traditionally favours reaching out; whether to do so is your decision, and the calendar is not advice about it.
Is Venus retrograde 2026 an 'ex returns' period?
In the tradition, yes: Venus retrograde turns a one-day Venus transit into three passes over the same degree. Dates: October 3 to November 13/14, 2026, with a shadow from August 31 to December 15. It describes timing, not a person.