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Centaur

2007 RG383

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(2007 RG383)

Where is it now

Distance from Sun
6.843 AU
True anomaly
122.31°
Distance from Earth
7.151 AU
As of
11 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.

Orbit of Mercury Orbit of Venus Orbit of Mars Sun Earth — 0.998 AU from the Sun Earth 2007 RG383 — 6.843 AU from the Sun 2007 RG383
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2007 RG383 is 7.151 AU from Earth today (59.5 light-minutes).

In the sky

Right ascension
08h 44m 35s
Declination
+11° 15′ 33″
Constellation
Cancer
Distance from Earth
7.14 AU
Elongation from the Sun
68.76° — well clear of the Sun

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
6.453 AU
Eccentricity
0.4245
Inclination
8.08°
Orbital period
16.39 years
Perihelion
3.714 AU
Aphelion
9.193 AU
Longitude of ascending node
180.68°
Argument of periapsis
179.38°
Epoch · J2000
2461200.5
Orbit class · CEN
Centaur
Earth MOID · 1,054.5 LD
2.7096 AU
Tisserand (Jupiter)
2.803

Orbit quality

Orbit very well determined (uncertainty code 2).

Observations used
35
Data arc
16.15 years
First observed
13 September 2007
Last observed
5 November 2023
Residual RMS
0.6 ″
Solution · Otto Matic
16 November 2023

Visual & observation

Absolute magnitude (H)
16.29

Discovery & classification

Centaur

Close approaches 4 on record

When (UTC) Body Distance Lunar distances Relative speed
2102-11-11 08:35:00 Juptr 0.7068 AU 275.1 LD 5.1 km/s

Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.

Sources