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Asteroid Near-Earth Potentially hazardous

509352

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509352 (2007 AG)

Where is it now

Distance from Sun
0.748 AU
True anomaly
242.63°
Distance from Earth
1.675 AU
As of
15 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 509352 — 0.748 AU from the Sun 509352
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 509352 is 1.675 AU from Earth today (13.9 light-minutes).

In the sky

Right ascension
12h 30m 07s
Declination
-08° 37′ 50″
Constellation
Virgo
Distance from Earth
1.67 AU
Elongation from the Sun
13.87° — too close to the Sun to observe

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
0.721 AU
Eccentricity
0.3744
Inclination
11.94°
Orbital period
223.4 days
Perihelion
0.451 AU
Aphelion
0.99 AU
Longitude of ascending node
283.2°
Argument of periapsis
5.72°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 1.5 LD
0.0038 AU
Tisserand (Jupiter)
7.896

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
279
Data arc
19.02 years
First observed
8 January 2007
Last observed
14 January 2026
Residual RMS
0.41 ″
Solution · Otto Matic
15 January 2026

Visual & observation

Absolute magnitude (H)
20.14

Discovery & classification

Discovered by
Mt. Lemmon Survey
Discovery date
8 January 2007
Discovery site
Mount Lemmon

Also known as 2007 AG

Aten Near-Earth Object Potentially Hazardous Asteroid

Close approaches 165 on record

Flyby geometry
Ecliptic flyby of 509352 at 2028-12-24 01:50 UTC Top-down view of the ecliptic, Earth at the centre, for the 2028-12-24 01:50 UTC close approach of 509352. Catalogue miss distance 42.9 LD · 1.65 × 10⁷ km. The curve is the geocentric path from 2028-12-21 to 2028-12-27, 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 42.9 LD · 1.65 × 10⁷ km 2028-12-24 01:50 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2028-12-24 01:50 UTC close approach of 509352. Catalogue miss distance 42.9 LD · 1.65 × 10⁷ km. The curve is the geocentric path from 2028-12-21 to 2028-12-27, 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
2028-12-24 01:50:00 Earth 0.1103 AU 42.9 LD 11.3 km/s
2033-01-07 11:35:00 Mercury 0.0382 AU 14.9 LD 17.8 km/s
2033-01-07 11:35:00 Merc 0.0382 AU 14.9 LD 17.8 km/s
2037-01-18 01:37:00 Earth 0.0773 AU 30.1 LD 9.4 km/s
2039-09-25 05:14:00 Mercury 0.0761 AU 29.6 LD 23.2 km/s
2039-09-25 05:14:00 Merc 0.0761 AU 29.6 LD 23.2 km/s
2039-12-24 06:24:00 Earth 0.1613 AU 62.8 LD 13 km/s
2040-12-21 16:05:00 Merc 0.0554 AU 21.5 LD 18.3 km/s
2040-12-21 16:05:00 Mercury 0.0554 AU 21.5 LD 18.3 km/s
2047-09-06 03:31:00 Merc 0.077 AU 30.0 LD 23.2 km/s

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

Sources