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Centaur

2018 QB37

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(2018 QB37)

Where is it now

Distance from Sun
9.018 AU
True anomaly
186.19°
Distance from Earth
9.712 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 2018 QB37 — 9.018 AU from the Sun 2018 QB37
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2018 QB37 is 9.712 AU from Earth today (1.3 light-hours).

In the sky

Right ascension
10h 55m 02s
Declination
+21° 54′ 33″
Constellation
Leo
Distance from Earth
9.7 AU
Elongation from the Sun
44.32° — 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
6.347 AU
Eccentricity
0.427
Inclination
23.24°
Orbital period
15.99 years
Perihelion
3.636 AU
Aphelion
9.057 AU
Longitude of ascending node
10.44°
Argument of periapsis
313.07°
Epoch · J2000
2461200.5
Orbit class · CEN
Centaur
Earth MOID · 1,042.3 LD
2.6782 AU
Tisserand (Jupiter)
2.655

Orbit quality

Orbit reasonably well determined (uncertainty code 5).

Observations used
15
Data arc
43 days
First observed
21 August 2018
Last observed
3 October 2018
Residual RMS
0.52 ″
Solution · Otto Matic
17 September 2025

Visual & observation

Absolute magnitude (H)
15.48

Discovery & classification

Centaur

Sources