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Trans-Neptunian object

612931

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612931 (2005 CA79)

612931 is a trans-Neptunian object in the Trans-Neptunian object orbit class. Its orbit takes it from 37.1 AU to 59.09 AU from the Sun; one orbit takes 333.5 years. Discovered 1 February 2005 by Palomar. Orbit from the JPL solution of 7 June 2026.

Where is it now

Distance from Sun
38.8 AU
True anomaly
40.17°
Distance from Earth
39.41 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 612931 — 38.8 AU from the Sun 612931
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 612931 is 39.41 AU from Earth today (5.5 light-hours).

In the sky

Right ascension
11h 09m 10s
Declination
+17° 10′ 24″
Constellation
Leo
Distance from Earth
39.4 AU
Elongation from the Sun
52.49° — near the Sun — look low at dusk or dawn

Favours the northern hemisphere; low or below the horizon from far south.

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
48.091 AU
Eccentricity
0.2286
Inclination
11.67°
Orbital period
333.5 years
Perihelion
37.097 AU
Aphelion
59.085 AU
Longitude of ascending node
50.11°
Argument of periapsis
69.75°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 14,061.4 LD
36.1316 AU
Tisserand (Jupiter)
5.905

Orbit quality

Orbit very well determined (uncertainty code 2).

Observations used
367
Data arc
24.22 years
First observed
19 December 2001
Last observed
9 March 2026
Residual RMS
0.51 ″
Solution · Otto Matic
7 June 2026

Visual & observation

Absolute magnitude (H)
5.16

Discovery & classification

Discovered by
Palomar
Discovery date
1 February 2005
Discovery site
Palomar

Also known as 2005 CA79

TNO

Sources