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Asteroid

Concordia

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58 Concordia (A860 FA)

Where is it now

Distance from Sun
2.823 AU
True anomaly
180.48°
Distance from Earth
1.829 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 Concordia — 2.823 AU from the Sun Concordia
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Concordia is 1.829 AU from Earth today (15.2 light-minutes).

In the sky

Right ascension
00h 55m 57s
Declination
+01° 11′ 05″
Constellation
Cetus
Distance from Earth
1.83 AU
Elongation from the Sun
172.68° — near opposition — up most of the night

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
2.7 AU
Eccentricity
0.0459
Inclination
5.07°
Orbital period
4.44 years
Perihelion
2.576 AU
Aphelion
2.823 AU
Longitude of ascending node
161.05°
Argument of periapsis
33.82°
Epoch · J2000
2461200.5
Orbit class · MBA
Main-belt asteroid
Earth MOID · 613.8 LD
1.5771 AU
Tisserand (Jupiter)
3.361

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
8,596
Data arc
161.8 years
First observed
9 February 1864
Last observed
26 November 2025
Residual RMS
0.32 ″
Solution · Otto Matic
5 June 2026

Physical properties

Mean radius
53 km
Rotation period
9.9 hours

Visual & observation

Geometric albedo
0.044
Absolute magnitude (H)
9.03
Colour index (B–V)
0.69
Spectral type (SMASS)
Ch
Spectral type (Tholen)
C
Colour index (U–B)
0.37

Discovery & classification

Discovered by
Luther, R.
Discovery date
24 March 1860
Discovery site
Dusseldorf

Also known as 58 · A860 FA · 1928 XE

Main-Belt Asteroid Named

Sources