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Asteroid Near-Earth

2023 FK

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(2023 FK)

Where is it now

Distance from Sun
1.064 AU
True anomaly
134.43°
Distance from Earth
1.327 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 2023 FK — 1.064 AU from the Sun 2023 FK
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2023 FK is 1.327 AU from Earth today (11.0 light-minutes).

In the sky

Right ascension
10h 44m 13s
Declination
+08° 33′ 02″
Constellation
Leo
Distance from Earth
1.33 AU
Elongation from the Sun
52.26° — 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
0.972 AU
Eccentricity
0.1551
Inclination
1.58°
Orbital period
350 days
Perihelion
0.821 AU
Aphelion
1.123 AU
Longitude of ascending node
88.6°
Argument of periapsis
248.47°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 1.4 LD
0.0036 AU
Tisserand (Jupiter)
6.207

Orbit quality

Orbit reasonably well determined (uncertainty code 3).

Observations used
62
Data arc
464 days
First observed
6 January 2022
Last observed
15 April 2023
Residual RMS
0.54 ″
Solution · Otto Matic
30 July 2025

Visual & observation

Absolute magnitude (H)
25.08

Discovery & classification

Aten Near-Earth Object

Close approaches 108 on record

Flyby geometry
Ecliptic flyby of 2023 FK at 2043-12-16 14:34 UTC Top-down view of the ecliptic, Earth at the centre, for the 2043-12-16 14:34 UTC close approach of 2023 FK. Catalogue miss distance 46.3 LD · 1.78 × 10⁷ km. The curve is the geocentric path from 2043-12-13 to 2043-12-19, 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 46.3 LD · 1.78 × 10⁷ km 2043-12-16 14:34 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2043-12-16 14:34 UTC close approach of 2023 FK. Catalogue miss distance 46.3 LD · 1.78 × 10⁷ km. The curve is the geocentric path from 2043-12-13 to 2043-12-19, 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
2032-04-24 01:39:00 Venus 0.1339 AU 52.1 LD 0.8 km/s
2040-11-18 20:12:00 Venus 0.1009 AU 39.3 LD 0.5 km/s
2043-12-16 14:34:00 Earth 0.1189 AU 46.3 LD 8.5 km/s
2044-10-28 19:30:00 Earth 0.1343 AU 52.2 LD 3.6 km/s
2045-01-19 15:20:00 Earth 0.1119 AU 43.5 LD 3.8 km/s
2045-08-21 11:20:00 Earth 0.1899 AU 73.9 LD 5.8 km/s
2046-04-06 16:38:00 Earth 0.103 AU 40.1 LD 3.5 km/s
2046-06-06 07:42:00 Earth 0.1169 AU 45.5 LD 2.8 km/s
2047-05-02 09:26:00 Earth 0.1398 AU 54.4 LD 9 km/s
2049-06-15 23:46:00 Venus 0.106 AU 41.2 LD 0.4 km/s

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

Sources