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Asteroid Near-Earth

2022 WH4

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(2022 WH4)

Where is it now

Distance from Sun
0.985 AU
True anomaly
254.06°
Distance from Earth
0.998 AU
As of
24 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 — 0.994 AU from the Sun Earth 2022 WH4 — 0.985 AU from the Sun 2022 WH4
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2022 WH4 is 0.998 AU from Earth today (8.3 light-minutes).

In the sky

Right ascension
10h 26m 30s
Declination
+16° 30′ 01″
Constellation
Leo
Distance from Earth
1 AU
Elongation from the Sun
59.27° — near the Sun — look low at dusk or dawn

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
0.967 AU
Eccentricity
0.1699
Inclination
14.22°
Orbital period
347.4 days
Perihelion
0.803 AU
Aphelion
1.131 AU
Longitude of ascending node
65.63°
Argument of periapsis
132.67°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 24.9 LD
0.0641 AU
Tisserand (Jupiter)
6.204

Orbit quality

Orbit poorly determined (uncertainty code 6).

Observations used
28
Data arc
10 days
First observed
21 November 2022
Last observed
1 December 2022
Residual RMS
0.53 ″
Solution · Otto Matic
1 December 2022

Visual & observation

Absolute magnitude (H)
23.89

Discovery & classification

Aten Near-Earth Object

Close approaches 68 on record

Flyby geometry
Ecliptic flyby of 2022 WH4 at 2039-08-11 04:39 UTC Top-down view of the ecliptic, Earth at the centre, for the 2039-08-11 04:39 UTC close approach of 2022 WH4. Catalogue miss distance 176.6 LD · 6.79 × 10⁷ km. The curve is the geocentric path from 2039-08-08 to 2039-08-14, 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 176.6 LD · 6.79 × 10⁷ km 2039-08-11 04:39 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2039-08-11 04:39 UTC close approach of 2022 WH4. Catalogue miss distance 176.6 LD · 6.79 × 10⁷ km. The curve is the geocentric path from 2039-08-08 to 2039-08-14, 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
2028-12-26 20:26:00 Venus 0.106 AU 41.2 LD 7.2 km/s
2039-06-10 18:41:00 Venus 0.123 AU 47.9 LD 7.7 km/s
2039-08-11 04:39:00 Earth 0.4539 AU 176.6 LD 17.8 km/s
2040-07-14 18:45:00 Earth 0.2248 AU 87.5 LD 11 km/s
2041-05-31 22:02:00 Earth 0.1667 AU 64.9 LD 9.3 km/s
2041-10-31 03:50:00 Earth 0.2239 AU 87.1 LD 7.7 km/s
2042-04-09 05:01:00 Earth 0.2605 AU 101.4 LD 8.8 km/s
2042-12-06 02:23:00 Earth 0.0652 AU 25.4 LD 8.6 km/s
2043-12-07 22:07:00 Earth 0.2961 AU 115.2 LD 15.1 km/s
2059-08-02 01:24:00 Earth 0.3487 AU 135.7 LD 14.6 km/s

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

Sources