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Asteroid Near-Earth

2025 WY3

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(2025 WY3)

Where is it now

Distance from Sun
1.133 AU
True anomaly
144.23°
Distance from Earth
0.878 AU
As of
20 October 2026

Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.

Sun Earth — 0.996 AU from the Sun Earth 2025 WY3 — 1.133 AU from the Sun 2025 WY3
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2025 WY3 is 0.878 AU from Earth today (7.3 light-minutes).

In the sky

Right ascension
09h 02m 41s
Declination
+15° 42′ 43″
Constellation
Cancer
Distance from Earth
0.88 AU
Elongation from the Sun
74.57° — well clear of the Sun

Favours the northern hemisphere; low or below the horizon from far south.

From your location

See how high it is right now, whether it is up after civil twilight, and when it rises and sets where you are.

How do I find my coordinates?

Google Maps on a computer

  1. Right-click the spot where you'll be observing.
  2. The first line of the menu is the coordinates, e.g. 51.50722, -0.12758 — click it and they're copied.
  3. Paste them above.

Google Maps on a phone

  1. Press and hold the spot to drop a pin.
  2. The coordinates appear in the search bar (or on the pin's card) — tap to copy, then paste above.

A full Google Maps link works too, but the short maps.app.goo.gl share links don't carry coordinates — copy the numbers instead. We round to about a kilometre; that's all the sky calculation needs.

Know your what3words address? Paste it, e.g. ///filled.count.soap. This is optional — the three words are sent to what3words to convert them, and we don't store the address or the result.

Your location stays in your browser and is sent only for this calculation. Using a what3words address is optional; if you do, the three words go to what3words to be converted and we don't record them. Set a location first, then you can save an email alert for this object. See our privacy policy.

Two-body approximation, good to about a degree for the planets — enough to find the constellation and know whether it is up.

Orbital elements

Semi-major axis
0.898 AU
Eccentricity
0.4994
Inclination
3.99°
Orbital period
310.6 days
Perihelion
0.449 AU
Aphelion
1.346 AU
Longitude of ascending node
243.81°
Argument of periapsis
47.51°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 1.4 LD
0.0036 AU
Tisserand (Jupiter)
6.515

Orbit quality

Orbit poorly determined (uncertainty code 7).

Observations used
12
Data arc
24 hours
First observed
24 November 2025
Last observed
25 November 2025
Residual RMS
0.42 ″
Solution · Otto Matic
25 November 2025

Visual & observation

Absolute magnitude (H)
28.69

Discovery & classification

Aten Near-Earth Object

Close approaches 50 on record

Flyby geometry
Ecliptic flyby of 2025 WY3 at 2033-02-25 11:58 UTC Top-down view of the ecliptic, Earth at the centre, for the 2033-02-25 11:58 UTC close approach of 2025 WY3. Catalogue miss distance 76.7 LD · 2.95 × 10⁷ km. The curve is the geocentric path from 2033-02-22 to 2033-02-28, with a mark at UTC midnights and an arrow for the direction of motion. The circle is the Moon’s mean orbit; the Moon is plotted at closest approach. A ray shows the Sun’s direction. The labelled distance is the full separation. The drawn radius is the part that lies in the ecliptic plane. At closest approach the object is south of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 76.7 LD · 2.95 × 10⁷ km 2033-02-25 11:58 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2033-02-25 11:58 UTC close approach of 2025 WY3. Catalogue miss distance 76.7 LD · 2.95 × 10⁷ km. The curve is the geocentric path from 2033-02-22 to 2033-02-28, with a mark at UTC midnights and an arrow for the direction of motion. The circle is the Moon’s mean orbit; the Moon is plotted at closest approach. A ray shows the Sun’s direction. The labelled distance is the full separation. The drawn radius is the part that lies in the ecliptic plane. At closest approach the object is south of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate.

JPL Horizons

When (UTC) Body Distance Lunar distances Relative speed
2033-02-25 11:58:00 Earth 0.197 AU 76.7 LD 11 km/s
2034-03-12 15:59:00 Merc 0.0408 AU 15.9 LD 20.6 km/s
2034-03-12 15:59:00 Mercury 0.0408 AU 15.9 LD 20.6 km/s
2036-01-11 01:36:00 Venus 0.1328 AU 51.7 LD 12.9 km/s
2037-07-15 04:26:00 Venus 0.1412 AU 55.0 LD 24.2 km/s
2039-02-28 21:40:00 Earth 0.1082 AU 42.1 LD 17.9 km/s
2042-10-27 20:40:00 Venus 0.1493 AU 58.1 LD 25.1 km/s
2042-11-24 10:21:00 Earth 0.0375 AU 14.6 LD 16.6 km/s
2046-12-13 20:48:00 Mercury 0.0863 AU 33.6 LD 26 km/s
2046-12-13 20:48:00 Merc 0.0863 AU 33.6 LD 26 km/s

Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.

Sources