Planet Speed
Who is faster. Who is ahead. When it changes.
Explore this day
Times on this slider are recalculated on release. Clock-change days can contain 23 or 25 hours.
Fastest to slowest
Ranked by absolute speed. Tap a planet for its start, peak and end timings.
| Planet & position | Zodiac speed | Direction | Compared with itself | Right now | Details |
|---|---|---|---|---|---|
| +12.08319degrees / day | → Direct | Slow0.92× its usual speed | Speeding upTap planet for timings | ||
| +0.99332degrees / day | → Direct | Typical1.01× its usual speed | Speeding upTap planet for timings | ||
| -0.56977degrees / day | ← Retrograde | Slow0.48× its usual speed | Speeding upTap planet for timings | ||
| +0.53898degrees / day | → Direct | Typical0.85× its usual speed | Slowing downTap planet for timings | ||
| +0.50048degrees / day | → Direct | Slow0.37× its usual speed | Slowing downTap planet for timings | ||
| +0.14744degrees / day | → Direct | Typical1.13× its usual speed | Slowing downTap planet for timings | ||
| -0.07370degrees / day | ← Retrograde | Typical1.04× its usual speed | Slowing downTap planet for timings | ||
| +0.01338degrees / day | → Direct | Typical0.44× its usual speed | Speeding upTap planet for timings | ||
| +0.01338degrees / day | → Direct | Typical0.44× its usual speed | Speeding upTap planet for timings |
A negative value means retrograde, not a negative physical speed. Fast means above that planet's own reference 75th percentile.
Position is not speed
Compare any planet with one other planet, or with all of them.
See every planet on the 0°–360° zodiac
Aries begins at 0°. The track loops back after 360°; this is not a race with a first-place planet.
Here, “ahead” means eastward along the shorter arc, less than 180°. At exactly opposite points neither planet is called ahead. The next pass is calculated, not estimated by dividing the gap by today's speed.
What changes, and when
Longitude passes, speed-order swaps, fast-speed windows and direction changes.
Calculating event times…
Event times are rounded to the nearest minute. ≈ marks an approximate true-node time from the Moshier fallback. A longitude pass means equal ecliptic longitude, not a physical collision or necessarily a close approach. Numerical timing depends on the selected model and available ephemeris.
Planet details
How to read this page
Speed versus position
The ranking uses the magnitude of the current rate of change of ecliptic longitude, in degrees per day. It does not show orbital kilometres per second. A planet can be ahead in longitude while another moves faster. The Sun and Moon are included as traditional grahas; Rahu and Ketu are lunar nodes, not physical planets.
Fast, typical, slow and nearly still
Every planet is compared with its own absolute-speed distribution: 7-day samples from 1 January 2000 up to 1 January 2030, with the same zodiac and node settings. Above its 75th percentile is Fast; below its 25th is Slow; the middle band is Typical. Nearly still overrides Slow below 5% of its median. These are tracking labels, not classical astrological categories. Mean nodes are labelled Steady instead.
What the timed changes mean
A longitude pass changes the relative eastward order. A speed-rank change happens when the two absolute speeds cross. A station is where signed longitude speed crosses zero. Fast-band start and end mark threshold crossings. The page searches changing ephemeris positions instead of assuming today's speed stays constant. The two lunar nodes share the same speed and therefore share a rank.
Search limits and accuracy
Choose 30, 90, 180 or 365 days on each side of the selected date. A missing endpoint is explicitly described as outside that searched range. Event brackets use 6-hour sampling with additional station/relative-turning splits and planet-threshold midpoints. Roots are refined to half a second and displayed to the nearest minute; this is numerical resolution, not a guarantee of absolute accuracy. Charts are sampled and should not replace the calculated event times. True-node speeds from the Moshier fallback can have numerical noise; those event times are marked approximately. External Swiss lunar ephemeris files are preferable for consistent node timing.
Calculation reference: Swiss Ephemeris documentation. This page describes astronomical motion; it does not predict personal, business or investment outcomes.