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Asteroid Near-Earth

105140

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105140 (2000 NL10)

Where is it now

Distance from Sun
1.581 AU
True anomaly
171.35°
Distance from Earth
1.304 AU
As of
11 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 — 0.998 AU from the Sun Earth 105140 — 1.581 AU from the Sun 105140
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 105140 is 1.304 AU from Earth today (10.8 light-minutes).

In the sky

Right ascension
18h 41m 19s
Declination
+17° 28′ 40″
Constellation
Hercules
Distance from Earth
1.31 AU
Elongation from the Sun
85.46° — 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
0.914 AU
Eccentricity
0.817
Inclination
32.54°
Orbital period
319.3 days
Perihelion
0.167 AU
Aphelion
1.661 AU
Longitude of ascending node
237.27°
Argument of periapsis
281.68°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 138.5 LD
0.3558 AU
Tisserand (Jupiter)
6.099

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
3,813
Data arc
74.05 years
First observed
17 September 1952
Last observed
4 October 2026
Residual RMS
0.38 ″
Solution · Otto Matic
10 October 2026

Physical properties

Mean radius
0.97 km
Rotation period
6.93 hours

Visual & observation

Geometric albedo
0.223
Absolute magnitude (H)
15.75

Discovery & classification

Discovered by
LINEAR
Discovery date
10 July 2000
Discovery site
Socorro

Also known as 2000 NL10

Aten Near-Earth Object

Close approaches 42 on record

When (UTC) Body Distance Lunar distances Relative speed
2048-04-15 07:50:00 Mercury 0.0364 AU 14.2 LD 54.4 km/s
2048-04-15 07:50:00 Merc 0.0364 AU 14.2 LD 54.4 km/s
2064-11-25 08:42:00 Mercury 0.0885 AU 34.5 LD 66.1 km/s
2064-11-25 08:42:00 Merc 0.0885 AU 34.5 LD 66.1 km/s
2071-11-22 15:04:00 Merc 0.0456 AU 17.7 LD 52.2 km/s
2071-11-22 15:04:00 Mercury 0.0456 AU 17.7 LD 52.2 km/s
2088-07-03 19:59:00 Merc 0.0682 AU 26.5 LD 63 km/s
2088-07-03 19:59:00 Mercury 0.0682 AU 26.5 LD 63 km/s
2095-07-01 00:10:00 Mercury 0.0647 AU 25.2 LD 49.4 km/s
2095-07-01 00:10:00 Merc 0.0647 AU 25.2 LD 49.4 km/s

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

Sources