78 Diana (Asteroid)
From South El Monte , 78 Diana is not observable – it will reach its highest point in the sky during daytime and is no higher than 15° above the horizon at dusk.
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Name
78 Diana
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Object type
Asteroid
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Current position
| Computed for: | 04 November 2025 |
| Right ascension: | 18h12m [1] |
| Declination: | −28°46' [1] |
| Constellation: | Sagittarius |
| Magnitude: | 14.42 (V) [1] |
| Distance: | 3.63 AU 30.22 lightmin [1] |
| Angular motion (speed): | 8.23 arcmin/day[1] |
| Angular motion (pos ang): | 264.2° |
Orbital elements [1]
| Semi-major axis: | 2.62 AU |
| Eccentricity: | 0.203427 |
| Inclination: | 8.68° |
| Longitude ascending node: | 333.30° |
| Argument of perihelion: | 153.22° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 85.51° |
| Absolute mag (H): | 8.34 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.09 AU |
| Aphelion: | 3.16 AU |
| Orbital period: | 4.25 years |