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Asteroid Near-Earth

450649

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450649 (2006 UY64)

Where is it now

Distance from Sun
1.056 AU
True anomaly
207.35°
Distance from Earth
1.032 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 450649 — 1.056 AU from the Sun 450649
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 450649 is 1.032 AU from Earth today (8.6 light-minutes).

In the sky

Right ascension
10h 41m 22s
Declination
+32° 57′ 56″
Constellation
Leo Minor
Distance from Earth
1.03 AU
Elongation from the Sun
62.73° — 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
0.932 AU
Eccentricity
0.1573
Inclination
26.22°
Orbital period
328.4 days
Perihelion
0.785 AU
Aphelion
1.078 AU
Longitude of ascending node
30.76°
Argument of periapsis
210.82°
Epoch · J2000
2461200.5
Orbit class · ATE
Aten
Earth MOID · 20.8 LD
0.0535 AU
Tisserand (Jupiter)
6.335

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
777
Data arc
19.15 years
First observed
25 October 2006
Last observed
18 December 2025
Residual RMS
0.27 ″
Solution · Otto Matic
16 June 2026

Physical properties

Rotation period
2.82 hours

Visual & observation

Absolute magnitude (H)
19.42

Discovery & classification

Discovered by
Siding Spring Survey
Discovery date
25 October 2006
Discovery site
Siding Spring

Also known as 2006 UY64

Aten Near-Earth Object

Close approaches 46 on record

Flyby geometry
Ecliptic flyby of 450649 at 2033-10-23 16:00 UTC Top-down view of the ecliptic, Earth at the centre, for the 2033-10-23 16:00 UTC close approach of 450649. Catalogue miss distance 34.8 LD · 1.34 × 10⁷ km. The curve is the geocentric path from 2033-10-20 to 2033-10-26, 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 approximate: a two-body Kepler propagation of the catalogue orbital elements, not a numerical integration. The Moon’s position is approximate. The inset is a heliocentric view and is approximate. approximate Sun 34.8 LD · 1.34 × 10⁷ km 2033-10-23 16:00 UTC Earth Moon Heliocentric, approximate

Top-down view of the ecliptic, Earth at the centre, for the 2033-10-23 16:00 UTC close approach of 450649. Catalogue miss distance 34.8 LD · 1.34 × 10⁷ km. The curve is the geocentric path from 2033-10-20 to 2033-10-26, 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 approximate: a two-body Kepler propagation of the catalogue orbital elements, not a numerical integration. The Moon’s position is approximate. The inset is a heliocentric view and is approximate.

When (UTC) Body Distance Lunar distances Relative speed
2027-02-10 19:34:00 Venus 0.1261 AU 49.1 LD 16.1 km/s
2033-10-23 16:00:00 Earth 0.0894 AU 34.8 LD 13.3 km/s
2038-10-19 21:47:00 Venus 0.1432 AU 55.7 LD 16.5 km/s
2042-10-25 08:33:00 Earth 0.1505 AU 58.6 LD 13.3 km/s
2060-05-01 21:36:00 Venus 0.1435 AU 55.8 LD 14.6 km/s
2068-10-22 09:08:00 Earth 0.1807 AU 70.3 LD 15.7 km/s
2072-01-09 09:23:00 Venus 0.105 AU 40.9 LD 14.6 km/s
2077-10-22 09:20:00 Earth 0.1124 AU 43.7 LD 14.6 km/s
2083-09-17 16:53:00 Venus 0.0917 AU 35.7 LD 14.7 km/s
2086-10-22 19:12:00 Earth 0.068 AU 26.5 LD 13.9 km/s

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

Sources