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Centaur

606357

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606357 (2017 UV43)

Where is it now

Distance from Sun
7.75 AU
True anomaly
136.52°
Distance from Earth
7.977 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.

Orbit of Mercury Orbit of Venus Orbit of Mars Sun Earth — 0.998 AU from the Sun Earth 606357 — 7.75 AU from the Sun 606357
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 606357 is 7.977 AU from Earth today (1.1 light-hours).

In the sky

Right ascension
18h 07m 59s
Declination
-26° 47′ 59″
Constellation
Sagittarius
Distance from Earth
7.99 AU
Elongation from the Sun
72.77° — well clear of the Sun

Favours the southern hemisphere; low or below the horizon from far north.

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
6.74 AU
Eccentricity
0.2616
Inclination
5.2°
Orbital period
17.5 years
Perihelion
4.977 AU
Aphelion
8.503 AU
Longitude of ascending node
320.72°
Argument of periapsis
181.48°
Epoch · J2000
2461200.5
Orbit class · CEN
Centaur
Earth MOID · 1,552.8 LD
3.9899 AU
Tisserand (Jupiter)
2.96

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
182
Data arc
20.27 years
First observed
30 March 2004
Last observed
6 July 2024
Residual RMS
0.58 ″
Solution · Otto Matic
31 July 2024

Visual & observation

Absolute magnitude (H)
13.74

Discovery & classification

Discovered by
Mount Lemmon Survey
Discovery date
13 March 2005
Discovery site
Mount Lemmon

Also known as 2017 UV43 · 2005 EE207

Centaur

Close approaches 12 on record

When (UTC) Body Distance Lunar distances Relative speed
2037-11-26 17:59:00 Juptr 0.1704 AU 66.3 LD 4.3 km/s
2037-11-26 17:59:00 Jupiter 0.1704 AU 66.3 LD 4.3 km/s
2095-10-14 09:55:00 Juptr 1.3537 AU 526.8 LD 5.3 km/s
2103-02-02 13:30:00 Juptr 1.2436 AU 484.0 LD 3.3 km/s
2111-02-26 07:47:00 Juptr 1.9811 AU 771.0 LD 6 km/s
2179-09-28 10:51:00 Jupiter 0.2868 AU 111.6 LD 3.8 km/s
2179-09-28 10:51:00 Juptr 0.2868 AU 111.6 LD 3.8 km/s

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

Sources