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Asteroid Near-Earth

Eger

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3103 Eger (1982 BB)

Where is it now

Distance from Sun
0.937 AU
True anomaly
28.69°
Distance from Earth
0.661 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 Eger — 0.937 AU from the Sun Eger
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. Eger is 0.661 AU from Earth today (5.5 light-minutes).

In the sky

Right ascension
08h 45m 46s
Declination
-12° 34′ 15″
Constellation
Hydra
Distance from Earth
0.66 AU
Elongation from the Sun
65.21° — 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
1.404 AU
Eccentricity
0.3541
Inclination
20.93°
Orbital period
607.7 days
Perihelion
0.907 AU
Aphelion
1.901 AU
Longitude of ascending node
129.73°
Argument of periapsis
254.1°
Epoch · J2000
2461200.5
Orbit class · APO
Apollo
Earth MOID · 30.8 LD
0.0791 AU
Tisserand (Jupiter)
4.613

Orbit quality

Orbit very well determined (uncertainty code 0).

Observations used
8,989
Data arc
44.71 years
First observed
21 January 1982
Last observed
9 October 2026
Residual RMS
0.28 ″
Solution · Otto Matic
10 October 2026

Physical properties

Mean radius
0.75 km
Rotation period
5.71 hours

Visual & observation

Geometric albedo
0.64
Absolute magnitude (H)
15.3
Colour index (B–V)
0.73
Spectral type (SMASS)
Xe
Colour index (U–B)
0.24

Discovery & classification

Discovered by
Lovas, M.
Discovery date
20 January 1982
Discovery site
Piszkesteto

Also known as 3103 · 1982 BB

Apollo Near-Earth Object Named

Sources