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Asteroid

Eucharis

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181 Eucharis (A878 CB)

Where is it now

Distance from Sun
2.544 AU
True anomaly
326.63°
Distance from Earth
1.96 AU
As of
21 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 — 0.995 AU from the Sun Earth Eucharis — 2.544 AU from the Sun Eucharis
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Eucharis is 1.96 AU from Earth today (16.3 light-minutes).

In the sky

Right ascension
06h 03m 26s
Declination
-00° 28′ 11″
Constellation
Orion
Distance from Earth
1.96 AU
Elongation from the Sun
115.03° — 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
3.123 AU
Eccentricity
0.2084
Inclination
18.9°
Orbital period
5.52 years
Perihelion
2.472 AU
Aphelion
3.774 AU
Longitude of ascending node
142.99°
Argument of periapsis
319.03°
Epoch · J2000
2461200.5
Orbit class · MBA
Main-belt asteroid
Earth MOID · 590.6 LD
1.5175 AU
Tisserand (Jupiter)
3.1

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
11,928
Data arc
145.6 years
First observed
10 June 1880
Last observed
11 January 2026
Residual RMS
0.23 ″
Solution · Otto Matic
5 June 2026

Physical properties

Mean radius
58 km
Rotation period
2.18 days

Visual & observation

Geometric albedo
0.101
Absolute magnitude (H)
8.06
Colour index (B–V)
0.82
Spectral type (SMASS)
Xk
Spectral type (Tholen)
S
Colour index (U–B)
0.38

Discovery & classification

Discovered by
Cottenot, P.
Discovery date
2 February 1878
Discovery site
Marseilles

Also known as 181 · A878 CB · A906 GA

Main-Belt Asteroid Named

Close approaches 8 on record

When (UTC) Body Distance Lunar distances Relative speed
2069-08-25 08:27:00 Juptr 1.7784 AU 692.1 LD 4.6 km/s
2080-02-23 02:18:00 Juptr 1.5338 AU 596.9 LD 4.4 km/s
2152-07-24 17:04:00 Juptr 1.7151 AU 667.5 LD 4.6 km/s
2163-01-26 23:15:00 Juptr 1.5668 AU 609.8 LD 4.3 km/s

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

Sources