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Trans-Neptunian object

1996 AS20

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(1996 AS20)

Where is it now

Distance from Sun
38.338 AU
True anomaly
133.53°
Distance from Earth
39.271 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 1996 AS20 — 38.338 AU from the Sun 1996 AS20
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 1996 AS20 is 39.271 AU from Earth today (5.4 light-hours).

In the sky

Right ascension
14h 45m 33s
Declination
-09° 08′ 43″
Constellation
Libra
Distance from Earth
39.27 AU
Elongation from the Sun
19.93° — too close to the Sun to observe

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
35.673 AU
Eccentricity
0.6197
Inclination
10.64°
Orbital period
213.1 years
Perihelion
13.568 AU
Aphelion
57.777 AU
Longitude of ascending node
183.59°
Argument of periapsis
265.64°
Epoch · J2000
2450102.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 4,904.4 LD
12.6022 AU
Tisserand (Jupiter)
4.185

Orbit quality

Orbit very uncertain — the object may be effectively lost (uncertainty code 9).

Observations used
12
Data arc
13 days
First observed
14 January 1996
Last observed
27 January 1996
Residual RMS
0.46 ″
Solution · Otto Matic
14 April 2021

Visual & observation

Absolute magnitude (H)
9.3

Discovery & classification

TNO

Sources