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Asteroid Near-Earth

613676

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613676 (2006 WE4)

Where is it now

Distance from Sun
0.741 AU
True anomaly
82.82°
Distance from Earth
0.601 AU
As of
16 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 — 0.997 AU from the Sun Earth 613676 — 0.741 AU from the Sun 613676
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 613676 is 0.601 AU from Earth today (5.0 light-minutes).

In the sky

Right ascension
16h 38m 33s
Declination
-01° 30′ 33″
Constellation
Ophiuchus
Distance from Earth
0.6 AU
Elongation from the Sun
47.95° — near the Sun — look low at dusk or dawn

Visible from both hemispheres.

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
0.785 AU
Eccentricity
0.183
Inclination
24.77°
Orbital period
253.9 days
Perihelion
0.641 AU
Aphelion
0.928 AU
Longitude of ascending node
310.99°
Argument of periapsis
318.61°
Epoch · J2000
2461200.5
Orbit class · IEO
Atira (interior-Earth object)
Earth MOID · 39.3 LD
0.1011 AU
Tisserand (Jupiter)
7.324

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
72
Data arc
18.14 years
First observed
21 November 2006
Last observed
12 January 2025
Residual RMS
0.36 ″
Solution · Otto Matic
13 January 2025

Visual & observation

Absolute magnitude (H)
18.88

Discovery & classification

Discovered by
Mt. Lemmon Survey
Discovery date
21 November 2006
Discovery site
Mount Lemmon

Also known as 2006 WE4

Atira Near-Earth Object

Close approaches 49 on record

Flyby geometry
Ecliptic flyby of 613676 at 2034-01-25 07:57 UTC Top-down view of the ecliptic, Earth at the centre, for the 2034-01-25 07:57 UTC close approach of 613676. Catalogue miss distance 42.1 LD · 1.62 × 10⁷ km. The curve is the geocentric path from 2034-01-22 to 2034-01-28, 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. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 42.1 LD · 1.62 × 10⁷ km 2034-01-25 07:57 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2034-01-25 07:57 UTC close approach of 613676. Catalogue miss distance 42.1 LD · 1.62 × 10⁷ km. The curve is the geocentric path from 2034-01-22 to 2034-01-28, 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. 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
2031-08-02 03:24:00 Venus 0.0755 AU 29.4 LD 17.9 km/s
2034-01-25 07:57:00 Earth 0.1082 AU 42.1 LD 13.8 km/s
2037-02-24 14:17:00 Venus 0.1456 AU 56.6 LD 20.2 km/s
2047-07-27 08:43:00 Venus 0.1103 AU 42.9 LD 17.8 km/s
2050-01-21 07:05:00 Earth 0.1549 AU 60.3 LD 14.9 km/s
2053-02-19 01:39:00 Venus 0.0985 AU 38.3 LD 19 km/s
2059-02-01 22:31:00 Earth 0.1403 AU 54.6 LD 12.8 km/s
2069-02-13 16:34:00 Venus 0.0698 AU 27.2 LD 18.3 km/s
2075-01-29 00:01:00 Earth 0.1037 AU 40.4 LD 13.2 km/s
2085-02-08 20:49:00 Venus 0.0706 AU 27.5 LD 17.9 km/s

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

Sources