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Trans-Neptunian object

525595

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525595 (2005 JP179)

Where is it now

Distance from Sun
42.67 AU
True anomaly
84.63°
Distance from Earth
43.519 AU
As of
19 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 — 0.996 AU from the Sun Earth 525595 — 42.67 AU from the Sun 525595
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 525595 is 43.519 AU from Earth today (6.0 light-hours).

In the sky

Right ascension
15h 43m 00s
Declination
-17° 38′ 34″
Constellation
Libra
Distance from Earth
43.52 AU
Elongation from the Sun
31.2° — 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
42.822 AU
Eccentricity
0.0289
Inclination
2.1°
Orbital period
280.2 years
Perihelion
41.585 AU
Aphelion
44.059 AU
Longitude of ascending node
137.82°
Argument of periapsis
15.78°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 15,798.6 LD
40.5954 AU
Tisserand (Jupiter)
5.853

Orbit quality

Orbit reasonably well determined (uncertainty code 3).

Observations used
71
Data arc
16.09 years
First observed
11 May 2005
Last observed
12 June 2021
Residual RMS
0.63 ″
Solution · Otto Matic
9 July 2021

Visual & observation

Absolute magnitude (H)
6.45

Discovery & classification

Discovered by
Buie, M. W.
Discovery date
11 May 2005
Discovery site
Cerro Tololo

Also known as 2005 JP179

TNO

Sources