Free astrology tools › Advanced Ephemeris Studio

Advanced Ephemeris Studio

Choose a UTC start date and sample time, table rhythm, coordinate centre and frame, then select the objects and optional event reference you need. Ephemeris Studio calculates the sequence in this browser, pages long results on screen, and prepares detailed CSV and print output.

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Build an advanced ephemeris table

Choose an Earth-centred or Sun-centred table, set the coordinate frame and UTC sample time, then add only the objects and event summaries needed for the comparison. Everything calculates locally in this browser.

Start date (UTC)

Sample time (UTC)

Table layout

Number of days

Coordinate centre

Coordinate frame

Daily tables support up to 3,660 rows (about ten years).

Objects Choose any combination of the verified local calculations.

Optional event summaries These existing event finders use geocentric tropical positions from the same start date.

Sign ingresses and stations Exact major aspects

Event window

Available with the geocentric tropical frame. Event timestamps are minute-rounded UTC.

Supported engine dates are 1800-01-01 through 2100-12-31. Object, layout, centre, frame, time, and output preferences stay only in this browser.

Choose the table rhythm and time

Daily rows use the chosen UTC time on each calendar day. Monthly rows use that time on the first day of each month, and yearly rows use it on 1 January. Daily jobs are capped at 3,660 rows; monthly and yearly layouts can span the full 1800–2100 calculation range. Long jobs yield between chunks so the page stays responsive.

Choose the centre and frame

Geocentric tables use apparent Earth-centred positions and can include the Sun, Moon, planets, lunar nodes, and mean Black Moon Lilith. Heliocentric tables use geometric Sun-centred positions for Mercury through Pluto and Earth, with optional ecliptic latitude and distance. Tropical, approximate Lahiri, and true or mean draconic longitude frames are labeled separately.

Add an exact-event reference

For a geocentric tropical table, optional summaries reuse the site’s ingress, station, and major-aspect finders over 7, 30, or 90 days from the entered start date. Their minute-rounded UTC events are labeled separately from the regularly sampled ephemeris rows.

Export the calculation

The CSV stores one row per date and selected object with the exact sample time, centre, coordinate frame, numeric longitude, optional heliocentric latitude and distance, motion, direction, and method. The print view repeats the table headings and any requested event summaries.

Engine range and exclusions

The bundled engines support dates from 1800 through 2100. Chiron, Ceres, Pallas, Juno, Vesta, true or osculating Black Moon Lilith, houses, and location-dependent points are not offered because this page has no verified local calculation for them in this workflow.