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Trans-Neptunian object

2015 KU186

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(2015 KU186)

2015 KU186 is a trans-Neptunian object in the Trans-Neptunian object orbit class. Its orbit takes it from 37.1 AU to 56.27 AU from the Sun; one orbit takes 319 years. Orbit from the JPL solution of 11 March 2026.

Where is it now

Distance from Sun
55.821 AU
True anomaly
194.41°
Distance from Earth
56.585 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 2015 KU186 — 55.821 AU from the Sun 2015 KU186
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2015 KU186 is 56.585 AU from Earth today (7.8 light-hours).

In the sky

Right ascension
16h 36m 13s
Declination
-07° 47′ 52″
Constellation
Ophiuchus
Distance from Earth
56.59 AU
Elongation from the Sun
38.78° — 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
46.688 AU
Eccentricity
0.2053
Inclination
20.41°
Orbital period
319 years
Perihelion
37.101 AU
Aphelion
56.275 AU
Longitude of ascending node
112.44°
Argument of periapsis
300.5°
Epoch · J2000
2457175.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 14,072.7 LD
36.1605 AU
Tisserand (Jupiter)
5.607

Orbit quality

Orbit very uncertain — the object may be effectively lost (uncertainty code 9).

Observations used
7
Data arc
64 days
First observed
18 May 2015
Last observed
21 July 2015
Residual RMS
0.1 ″
Solution · Otto Matic
11 March 2026

Visual & observation

Absolute magnitude (H)
8

Discovery & classification

TNO

Sources