Skip to content
Public Universe
Trans-Neptunian object

2017 EO53

Add to an observing list or journal →

(2017 EO53)

2017 EO53 is a trans-Neptunian object in the Trans-Neptunian object orbit class. Its orbit takes it from 36.1 AU to 58.27 AU from the Sun; one orbit takes 324.1 years. Orbit from the JPL solution of 5 June 2024.

Where is it now

Distance from Sun
36.187 AU
True anomaly
9.39°
Distance from Earth
36.869 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 2017 EO53 — 36.187 AU from the Sun 2017 EO53
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2017 EO53 is 36.869 AU from Earth today (5.1 light-hours).

In the sky

Right ascension
10h 59m 19s
Declination
+01° 52′ 00″
Constellation
Leo
Distance from Earth
36.86 AU
Elongation from the Sun
47.12° — 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
47.182 AU
Eccentricity
0.235
Inclination
24.76°
Orbital period
324.1 years
Perihelion
36.095 AU
Aphelion
58.268 AU
Longitude of ascending node
173.6°
Argument of periapsis
340.22°
Epoch · J2000
2457781.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 13,665.8 LD
35.1151 AU
Tisserand (Jupiter)
5.426

Orbit quality

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

Observations used
13
Data arc
71 days
First observed
25 December 2016
Last observed
6 March 2017
Residual RMS
0.11 ″
Solution · Otto Matic
5 June 2024

Visual & observation

Absolute magnitude (H)
9.52

Discovery & classification

TNO

Sources