Skip to content
Public Universe
Asteroid Near-Earth

2012 AN10

Add to an observing list or journal →

(2012 AN10)

Where is it now

Distance from Sun
0.97 AU
True anomaly
238.02°
Distance from Earth
1.395 AU
As of
21 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 — 0.995 AU from the Sun Earth 2012 AN10 — 0.97 AU from the Sun 2012 AN10
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2012 AN10 is 1.395 AU from Earth today (11.6 light-minutes).

In the sky

Right ascension
11h 02m 03s
Declination
+05° 55′ 13″
Constellation
Leo
Distance from Earth
1.4 AU
Elongation from the Sun
44.01° — 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
0.909 AU
Eccentricity
0.3982
Inclination
14.13°
Orbital period
316.7 days
Perihelion
0.547 AU
Aphelion
1.271 AU
Longitude of ascending node
297.43°
Argument of periapsis
303.41°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 0.8 LD
0.002 AU
Tisserand (Jupiter)
6.466

Orbit quality

Orbit very well determined (uncertainty code 1).

Observations used
88
Data arc
12.99 years
First observed
10 January 2012
Last observed
5 January 2025
Residual RMS
0.55 ″
Solution · Otto Matic
7 January 2025

Visual & observation

Absolute magnitude (H)
22.63

Discovery & classification

Aten Near-Earth Object

Close approaches 59 on record

Flyby geometry
Ecliptic flyby of 2012 AN10 at 2038-01-15 16:50 UTC Top-down view of the ecliptic, Earth at the centre, for the 2038-01-15 16:50 UTC close approach of 2012 AN10. Catalogue miss distance 57.0 LD · 2.19 × 10⁷ km. The curve is the geocentric path from 2038-01-12 to 2038-01-18, 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 north of the ecliptic. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate. Sun 57.0 LD · 2.19 × 10⁷ km 2038-01-15 16:50 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2038-01-15 16:50 UTC close approach of 2012 AN10. Catalogue miss distance 57.0 LD · 2.19 × 10⁷ km. The curve is the geocentric path from 2038-01-12 to 2038-01-18, 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 north 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
2038-01-15 16:50:00 Earth 0.1465 AU 57.0 LD 10.6 km/s
2042-09-05 03:59:00 Venus 0.1051 AU 40.9 LD 18.5 km/s
2051-01-11 05:29:00 Earth 0.1964 AU 76.5 LD 10.2 km/s
2057-05-28 22:40:00 Venus 0.1157 AU 45.0 LD 15.3 km/s
2058-01-13 05:14:00 Earth 0.1596 AU 62.1 LD 18.4 km/s
2071-01-15 07:01:00 Earth 0.1061 AU 41.3 LD 16.8 km/s
2076-06-29 10:28:00 Venus 0.095 AU 37.0 LD 16.1 km/s
2082-05-18 10:44:00 Venus 0.1491 AU 58.0 LD 15.9 km/s
2084-01-16 15:21:00 Earth 0.0706 AU 27.5 LD 15.8 km/s
2095-07-26 00:21:00 Venus 0.0958 AU 37.3 LD 16.1 km/s

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

Sources