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Trans-Neptunian object

2016 SQ58

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(2016 SQ58)

Where is it now

Distance from Sun
33.202 AU
True anomaly
41.24°
Distance from Earth
32.387 AU
As of
15 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 — 0.997 AU from the Sun Earth 2016 SQ58 — 33.202 AU from the Sun 2016 SQ58
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2016 SQ58 is 32.387 AU from Earth today (4.5 light-hours).

In the sky

Right ascension
03h 39m 26s
Declination
-01° 42′ 43″
Constellation
Eridanus
Distance from Earth
32.38 AU
Elongation from the Sun
144.92° — well clear of the Sun

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
36.536 AU
Eccentricity
0.1144
Inclination
22.71°
Orbital period
220.8 years
Perihelion
32.357 AU
Aphelion
40.715 AU
Longitude of ascending node
170.12°
Argument of periapsis
201.72°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 12,206.6 LD
31.3655 AU
Tisserand (Jupiter)
4.999

Orbit quality

Orbit reasonably well determined (uncertainty code 4).

Observations used
58
Data arc
5.05 years
First observed
27 October 2013
Last observed
16 November 2018
Residual RMS
0.15 ″
Solution · Otto Matic
9 September 2021

Visual & observation

Absolute magnitude (H)
7.94

Discovery & classification

Also known as 2015 TV363

TNO

Sources