Skip to content
Solar
Asteroid

Julia

89 Julia (A866 PA)

Where is it now

Distance from Sun
2.51 AU
True anomaly
95.7°
Distance from Earth
2.605 AU
As of
2 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 — 1.001 AU from the Sun Earth Julia — 2.51 AU from the Sun Julia
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Julia is 2.605 AU from Earth today (21.7 light-minutes).

In the sky

Right ascension
08h 02m 55s
Declination
+30° 21′ 41″
Constellation
Gemini
Distance from Earth
2.6 AU
Elongation from the Sun
73.95° — well clear of the Sun

Favours the northern hemisphere; low or below the horizon from far south.

From your location

See how high it is right now, whether it's up after dark, 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
2.551 AU
Eccentricity
0.1837
Inclination
16.12°
Orbital period
4.07 years
Perihelion
2.082 AU
Aphelion
3.019 AU
Longitude of ascending node
311.52°
Argument of periapsis
45.2°
Epoch · J2000
2461200.5
Orbit class · MBA
Main-belt asteroid
Earth MOID · 429.2 LD
1.1029 AU
Tisserand (Jupiter)
3.362

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
4,596
Data arc
159.5 years
First observed
7 August 1866
Last observed
8 February 2026
Residual RMS
0.47 ″
Solution · Otto Matic
5 June 2026

Physical properties

Mean radius
73 km
Rotation period
11.39 hours

Visual & observation

Geometric albedo
0.189
Absolute magnitude (H)
6.39
Colour index (B–V)
0.86
Spectral type (SMASS)
K
Spectral type (Tholen)
S
Colour index (U–B)
0.44

Discovery & classification

Discovered by
Stephan, E.
Discovery date
6 August 1866
Discovery site
Marseilles

Also known as 89 · A866 PA · A893 EA

Main-Belt Asteroid Named

Sources