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Centaur

2010 JB20

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(2010 JB20)

Where is it now

Distance from Sun
2.021 AU
True anomaly
36.07°
Distance from Earth
2.454 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 2010 JB20 — 2.021 AU from the Sun 2010 JB20
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2010 JB20 is 2.454 AU from Earth today (20.4 light-minutes).

In the sky

Right ascension
16h 37m 38s
Declination
-27° 59′ 05″
Constellation
Scorpius
Distance from Earth
2.46 AU
Elongation from the Sun
52.99° — 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
6.491 AU
Eccentricity
0.7134
Inclination
7.51°
Orbital period
16.54 years
Perihelion
1.86 AU
Aphelion
11.122 AU
Longitude of ascending node
24.05°
Argument of periapsis
214.87°
Epoch · J2000
2461200.5
Orbit class · CEN
Centaur
Earth MOID · 332.5 LD
0.8544 AU
Tisserand (Jupiter)
2.353

Orbit quality

Orbit very well determined (uncertainty code 1).

Observations used
92
Data arc
15.94 years
First observed
3 May 2010
Last observed
12 April 2026
Residual RMS
0.49 ″
Solution · Otto Matic
5 June 2026

Visual & observation

Absolute magnitude (H)
16.93

Discovery & classification

Also known as 2026 DJ16

Centaur

Close approaches 5 on record

When (UTC) Body Distance Lunar distances Relative speed
2094-03-06 05:18:00 Juptr 1.6888 AU 657.2 LD 15.6 km/s
2192-04-27 05:55:00 Juptr 0.6272 AU 244.1 LD 10.8 km/s

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

Sources