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Trans-Neptunian object

2007 CT79

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(2007 CT79)

Where is it now

Distance from Sun
37.77 AU
True anomaly
33.22°
Distance from Earth
38.519 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 2007 CT79 — 37.77 AU from the Sun 2007 CT79
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2007 CT79 is 38.519 AU from Earth today (5.3 light-hours).

In the sky

Right ascension
11h 41m 30s
Declination
+18° 41′ 35″
Constellation
Leo
Distance from Earth
38.51 AU
Elongation from the Sun
41.25° — 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
43.255 AU
Eccentricity
0.1449
Inclination
25.38°
Orbital period
284.5 years
Perihelion
36.989 AU
Aphelion
49.522 AU
Longitude of ascending node
131.15°
Argument of periapsis
5.63°
Epoch · J2000
2454146.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 14,011.5 LD
36.0034 AU
Tisserand (Jupiter)
5.275

Orbit quality

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

Observations used
4
Data arc
24 hours
First observed
14 February 2007
Last observed
15 February 2007
Residual RMS
0.09 ″
Solution · Otto Matic
15 April 2021

Visual & observation

Absolute magnitude (H)
8.23

Discovery & classification

TNO

Sources