78 Diana (Asteroid)

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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 21° above the horizon at dusk.

Name 78 Diana
Object type Asteroid
Current position
Computed for:18 September 2025
Right ascension:17h15m [1]
Declination:−30°16' [1]
Constellation:Scorpius
Magnitude:14.12 (V) [1]
Distance:2.99 AU
24.84 lightmin [1]
Angular motion (speed):10.08 arcmin/day[1]
Angular motion (pos ang):271.7°
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

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