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Trans-Neptunian object

40314

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40314 (1999 KR16)

40314 is a trans-Neptunian object in the Trans-Neptunian object orbit class. Its orbit takes it from 33.94 AU to 63.12 AU from the Sun; one orbit takes 338.1 years. Discovered 16 May 1999 by Dalsanti, A., Hainaut, O. R.. Orbit from the JPL solution of 6 June 2026.

Where is it now

Distance from Sun
34 AU
True anomaly
353.04°
Distance from Earth
34.712 AU
As of
26 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 40314 — 34 AU from the Sun 40314
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 40314 is 34.712 AU from Earth today (4.8 light-hours).

In the sky

Right ascension
16h 57m 33s
Declination
-03° 42′ 47″
Constellation
Ophiuchus
Distance from Earth
34.71 AU
Elongation from the Sun
43.55° — 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
48.533 AU
Eccentricity
0.3006
Inclination
24.82°
Orbital period
338.1 years
Perihelion
33.942 AU
Aphelion
63.124 AU
Longitude of ascending node
205.65°
Argument of periapsis
58.7°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 12,841.1 LD
32.9959 AU
Tisserand (Jupiter)
5.394

Orbit quality

Orbit very well determined (uncertainty code 1).

Observations used
551
Data arc
26.79 years
First observed
16 May 1999
Last observed
28 February 2026
Residual RMS
0.46 ″
Solution · Otto Matic
6 June 2026

Physical properties

Rotation period
11.7 hours

Visual & observation

Absolute magnitude (H)
5.59

Discovery & classification

Discovered by
Dalsanti, A., Hainaut, O. R.
Discovery date
16 May 1999
Discovery site
La Silla

Also known as 1999 KR16

TNO

Sources