1802 Zhang Heng (Asteroid)
From South El Monte , 1802 Zhang Heng is not observable – it will reach its highest point in the sky during daytime and is no higher than 19° above the horizon at dusk.
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Name
1802 Zhang Heng
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Object type
Asteroid
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Current position
| Computed for: | 29 October 2025 |
| Right ascension: | 17h41m [1] |
| Declination: | −21°50' [1] |
| Constellation: | Ophiuchus |
| Magnitude: | 17.56 (V) [1] |
| Distance: | 3.47 AU 28.87 lightmin [1] |
| Angular motion (speed): | 9.44 arcmin/day[1] |
| Angular motion (pos ang): | 273.6° |
Orbital elements [1]
| Semi-major axis: | 2.84 AU |
| Eccentricity: | 0.032980 |
| Inclination: | 2.69° |
| Longitude ascending node: | 142.53° |
| Argument of perihelion: | 299.55° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 142.76° |
| Absolute mag (H): | 11.69 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.75 AU |
| Aphelion: | 2.94 AU |
| Orbital period: | 4.79 years |