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Trans-Neptunian object

2020 KY53

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(2020 KY53)

2020 KY53 is a trans-Neptunian object in the Trans-Neptunian object orbit class. Its orbit takes it from 23.21 AU to 73.67 AU from the Sun; one orbit takes 337.2 years. Orbit from the JPL solution of 16 October 2023.

Where is it now

Distance from Sun
27.073 AU
True anomaly
305.72°
Distance from Earth
27.082 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 2020 KY53 — 27.073 AU from the Sun 2020 KY53
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2020 KY53 is 27.082 AU from Earth today (3.8 light-hours).

In the sky

Right ascension
20h 15m 33s
Declination
-19° 14′ 08″
Constellation
Capricornus
Distance from Earth
27.08 AU
Elongation from the Sun
88.32° — well clear of the Sun

Favours the southern hemisphere; low or below the horizon from far north.

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
48.441 AU
Eccentricity
0.5208
Inclination
4.72°
Orbital period
337.2 years
Perihelion
23.215 AU
Aphelion
73.668 AU
Longitude of ascending node
130.48°
Argument of periapsis
227.64°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 8,644.2 LD
22.2117 AU
Tisserand (Jupiter)
5.299

Orbit quality

Orbit poorly determined (uncertainty code 6).

Observations used
31
Data arc
426 days
First observed
30 May 2020
Last observed
30 July 2021
Residual RMS
0.02 ″
Solution · Otto Matic
16 October 2023

Visual & observation

Absolute magnitude (H)
10.5

Discovery & classification

TNO

Sources