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Trans-Neptunian object

2016 YZ40

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(2016 YZ40)

Where is it now

Distance from Sun
34.947 AU
True anomaly
3.61°
Distance from Earth
35.685 AU
As of
18 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 — 0.996 AU from the Sun Earth 2016 YZ40 — 34.947 AU from the Sun 2016 YZ40
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2016 YZ40 is 35.685 AU from Earth today (4.9 light-hours).

In the sky

Right ascension
10h 44m 40s
Declination
-11° 00′ 47″
Constellation
Sextans
Distance from Earth
35.68 AU
Elongation from the Sun
42.4° — 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
42.668 AU
Eccentricity
0.1812
Inclination
19.9°
Orbital period
278.7 years
Perihelion
34.936 AU
Aphelion
50.4 AU
Longitude of ascending node
282.66°
Argument of periapsis
241.02°
Epoch · J2000
2457647.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 13,228.9 LD
33.9924 AU
Tisserand (Jupiter)
5.418

Orbit quality

Orbit very uncertain — the object may be effectively lost (uncertainty code 8).

Observations used
20
Data arc
301 days
First observed
2 April 2016
Last observed
28 January 2017
Residual RMS
0.13 ″
Solution · Otto Matic
6 September 2024

Visual & observation

Absolute magnitude (H)
8.35

Discovery & classification

TNO

Sources