A Modern Lunar Almanac
LuNAC presents real-time celestial cycles in calendar form. Built on deterministic astronomical computation, it provides observational context for lunar and planetary cycles without prediction or interpretation.
Learn more about lunar almanacsWhat Is a Modern Lunar Almanac?
A modern lunar almanac translates astronomical computation into calendar form. Where traditional almanacs relied on printed tables, LuNAC computes celestial events in real time—lunar phases, perigee and apogee, eclipses, and planetary conjunctions—presenting them as they unfold.
It serves the same purpose almanacs have always served: providing accurate celestial event timing for planning, observation, and seasonal awareness. The difference is precision. Every event is calculated from ephemeris models, not approximated from static data.
This is a tool for seeing the sky's rhythms clearly, without mysticism, without pressure, without noise.
Timeline illustration
Differentiation diagram
Observational, Not Predictive
LuNAC computes astronomical events. It does not interpret them.
You will not find horoscopes here. No fate-driven forecasts. No promises about what the moon means for your week. LuNAC provides timing—when perigee occurs, when the new moon arrives, when Jupiter aligns with the lunar nodes. Observable facts, not invented narratives.
This distinction matters. Astrology assigns meaning to celestial patterns. Astronomy observes them. LuNAC is built on the latter: deterministic calculation, provenance-tracked data, and respect for what can be known versus what cannot.
If you seek cyclical awareness grounded in reality, you are in the right place.
Built on Deterministic Computation
Every celestial event in LuNAC is computed from astronomical models. Lunar phases are derived from the Moon's orbital position relative to Earth and Sun. Perigee and apogee calculations account for the Moon's elliptical orbit. Eclipses emerge from the geometry of the Sun-Earth-Moon system and the lunar nodes.
Nothing is approximated. Nothing is guessed. Every timestamp carries provenance—a traceable path from ephemeris data to your calendar.
LuNAC computes these events in UTC and displays them in your local timezone. The sky does not change based on where you stand, but your view of it does. This tool respects that difference.
Precision is not a marketing claim. It is a method.
Computation flow diagram
Built for Seasonal Living
Gardeners and Growers
Plant by the moon—not because it is mystical, but because lunar cycles have long been observed and recorded alongside seasonal patterns. LuNAC provides accurate phase timing and apogee-perigee tracking for those who integrate celestial observation into land-based practice.
Seasonal Practitioners
Whether you observe sabbats, mark solstices, or practice rituals aligned with lunar cycles, LuNAC offers precise timing without interpretive overlay. You bring the meaning. LuNAC brings the math.
Rhythm-Oriented Individuals
Some of us simply prefer cyclical time to linear productivity. LuNAC serves those seeking alternatives to the relentless pace of optimization culture—offering natural rhythms as gentle scaffolding, not as another system to hack.
A Calendar for the Sky
View lunar phases, track perigee and apogee, observe planetary events—all in a calendar interface designed for clarity and seasonal context.
Product UI preview
Join the Waitlist
LuNAC is launching soon. Sign up to receive one email when the almanac is ready. No spam. No promotional noise. Just a quiet notification when you can start using it.