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Centaur

2015 KC87

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(2015 KC87)

Where is it now

Distance from Sun
7.543 AU
True anomaly
210.97°
Distance from Earth
8.354 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 2015 KC87 — 7.543 AU from the Sun 2015 KC87
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2015 KC87 is 8.354 AU from Earth today (1.2 light-hours).

In the sky

Right ascension
10h 54m 58s
Declination
-02° 14′ 18″
Constellation
Leo
Distance from Earth
8.34 AU
Elongation from the Sun
34.21° — 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
5.812 AU
Eccentricity
0.6648
Inclination
14.05°
Orbital period
14.01 years
Perihelion
1.948 AU
Aphelion
9.676 AU
Longitude of ascending node
202.93°
Argument of periapsis
106.88°
Epoch · J2000
2459400.5
Orbit class · CEN
Centaur
Tisserand (Jupiter)
2.427

Orbit quality

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

Observations used
10
Data arc
24 hours
First observed
21 May 2015
Last observed
22 May 2015
Residual RMS
0.1 ″

Visual & observation

Absolute magnitude (H)
18.04

Discovery & classification

Centaur

Sources