The Astrolium solar return reading drafts a full year-ahead reading you can edit and send to a client in 15 minutes total. The math runs on the Swiss Ephemeris; the prose is drafted by the AI assistant against a corpus of cited source material. No login, no email, no upload.
Time saved: 90 to 120 minutes per Solar Return client. Solo practitioners commonly charge $200 to $400 for an annual Solar Return reading across a roster of 10 clients to 15 clients a month. Astrolium turns that writing block from a 2-hour session into a 20-minute editorial pass, which is the difference between Solar Returns being a recurring-revenue offering at 5 hours to 8 hours of saved time per client and being a once-a-year favor for existing clients.
The full Solar Return workspace with interactive return wheel, biwheel against natal, relocation overlay, and batch generation lives inside the solar return feature and the AI assistant feature. For the 90-day transit forecast that pairs with this reading, see the transit report generator. For the foundational natal write-up, see the natal chart report generator. For the $29 per month Pro tier with batch generation, see pricing.
What you get
The report is structured as a document, not a list of placements. It opens with the return Ascendant and a paragraph naming the structural lens of the year. From there it walks the major signatures in traditional order: the house Sun falls in (the area of life amplified for 365 days), the return Moon (the emotional weather of the year), the Ascendant ruler (the planet driving the year, read in its natal house), and the planets on the return angles (the headline events of the year, dated where possible).
The closing section is a synthesis that pulls the signatures together, names the two or three motifs you'd lead the consultation with, and notes where the return chart pulls against the natal chart — the cross-aspects that signal stress points for the year.
Why a Solar Return chart works
A Solar Return is the chart cast for the exact moment transiting Sun returns to its natal degree, to the second. The convention is old: Hellenistic astrologers cast annual revolution charts, and the technique survived through Arabic and medieval astrology before re-entering modern Western practice through Donna Cunningham and Mary Shea in the late 20th century. For the chart itself (not the written reading), see the solar return chart calculator.
The reading is a snapshot. Whatever planets sit on the return angles, whatever sign the Moon falls in at the return moment, whatever house the Sun lands in at the return: those signatures dominate the 365 days until the next return. The natal chart doesn't move. The Solar Return chart moves every year. Reading them together is what produces the year-ahead picture.
What the return Ascendant tells you
The single most-cited signal in Solar Return work. The return Ascendant changes annually because the birth-time-of-day for the return is the moment the Sun returns to its natal degree, not the natal birth hour. That moment shifts by hours from year to year depending on solar geometry.
A return Ascendant in the same sign as the natal Ascendant reads as a year that continues the natal lifeline: same structural lens, same self-presentation. A return Ascendant in a sign that squares the natal reads as a year that forces a perpendicular pivot. A return Ascendant in the natal 7th, 10th, 4th, or 1st (the natal angles) reads as a structurally consequential year.
Relocating the return
Some practitioners cast the Solar Return for the natal location regardless of where the client physically is on the return date. Other practitioners relocate the chart to the client's actual location at the return moment; the argument is that the house cusps describe the actual environment.
Astrolium accepts both. The Sun's return moment is identical either way, and so are all planetary placements. What changes is the Ascendant, the MC, and the house cusps. The two conventions can produce dramatically different year-ahead readings; some clients deliberately travel for their birthday to optimize the relocated return.
Enter a return location if the client will be somewhere specific. Leave it blank to use the natal location.
The AI corpus
Every interpretive claim is traceable. The corpus includes Mary Shea's Planets in Solar Returns, Donna Cunningham's Healing Pluto Problems (for the deeper return work), Robert Hand's Planets in Transit, and the Hellenistic source material on annual revolutions Chris Brennan documented in Hellenistic Astrology. Each paragraph cites the source the read leans on so you can verify and adjust.
This free tool reads from that shared corpus. Inside Astrolium, the AI assistant reads each chart against your own Knowledge Base, the interpretation rules and notes you upload, so the year-ahead reading already follows your method and goes out as a client email, Instagram message, or PDF with little editing.
For the corpus list and how Astrolium trains the assistant, see the AI assistant feature. For the broader question of where AI fits in client work, see the AI in astrology guide.
Why a birth time is required
The return Ascendant and house cusps are the primary signal in a Solar Return reading, and both depend on the exact natal birth time. The time is used to compute the natal Sun's degree to the second, which sets the return moment to the second. A 4-minute uncertainty in birth time can shift the return Ascendant across signs.
Astrolium will not draft a Solar Return reading without a birth time. The math is meaningless without it; running the report on an unknown time would produce confident prose around a fictional Ascendant. The natal chart report and the transit report tolerate missing times with caveats. The Solar Return report does not.
How the math runs
Swiss Ephemeris DE431, the same kernel Solar Fire and Astro Gold use. The Sun's return moment is computed to the second. The return chart is cast for that moment in either the natal or the relocated frame. All planetary positions, angles, and house cusps match to the arc-second.
Astrolium supports 5 house systems (Placidus, Whole Sign, Porphyry, Equal, Koch), switchable from the dropdown without re-entering birth data. Placidus is the modern Western default for Solar Return work; whole-sign houses are used by practitioners reading Solar Returns inside the Hellenistic tradition.
Nothing is stored. Nothing is emailed. The Pro tier offers persistent storage and batch generation; the free tier runs ephemeral.
After the report
A Solar Return reads inside the larger predictive picture. The same 365-day window also contains profected months, Zodiacal Releasing chapters, Venus returns, and outer-planet transits to natal placements. The Solar Return sets the year frame; the other techniques fill in the timing inside it.
For the integrated view where the Solar Return stacks against profections, transits, and ZR on one scrubbable ribbon, see the predictive timing feature. For the 90-day forecast that drills into the timing inside the year, see the transit report generator. For the foundational natal write-up, see the natal chart report generator.
Cross-link
Pair this with the natal chart report and the transit report for a full three-document client packet. For the relational sub-cycle inside the Solar Return year, run the venus return calculator. For the annual time-lord that frames the year, see the profections calculator. For the structural late-midlife returns that often land inside a Solar Return year, see the Saturn return calculator and the chiron return. For the deeper interpretive context, see the hellenistic astrology guide.