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Trans-Neptunian object

2015 GS50

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(2015 GS50)

2015 GS50 is a trans-Neptunian object in the Trans-Neptunian object orbit class. Its orbit takes it from 35.49 AU to 59.58 AU from the Sun; one orbit takes 327.8 years. Orbit from the JPL solution of 15 April 2021.

Where is it now

Distance from Sun
52.663 AU
True anomaly
232.2°
Distance from Earth
53.587 AU
As of
25 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 2015 GS50 — 52.663 AU from the Sun 2015 GS50
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2015 GS50 is 53.587 AU from Earth today (7.4 light-hours).

In the sky

Right ascension
15h 23m 56s
Declination
-20° 21′ 37″
Constellation
Libra
Distance from Earth
53.59 AU
Elongation from the Sun
21.3° — near the Sun — look low at dusk or dawn

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
47.537 AU
Eccentricity
0.2534
Inclination
1.72°
Orbital period
327.8 years
Perihelion
35.493 AU
Aphelion
59.582 AU
Longitude of ascending node
326.2°
Argument of periapsis
35.79°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 13,422.3 LD
34.4894 AU
Tisserand (Jupiter)
5.955

Orbit quality

Orbit poorly determined (uncertainty code 6).

Observations used
18
Data arc
2.99 years
First observed
13 April 2015
Last observed
10 April 2018
Residual RMS
0.12 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
6.8

Discovery & classification

TNO

Sources