540 Rosamunde (Asteroid)

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From South El Monte , 540 Rosamunde is not observable – it will reach its highest point in the sky during daytime and is no higher than 20° above the horizon at dawn.

Name 540 Rosamunde
Object type Asteroid
Current position
Computed for:21 December 2025
Right ascension:15h13m [1]
Declination:−17°07' [1]
Constellation:Libra
Magnitude:15.41 (V) [1]
Distance:2.72 AU
22.64 lightmin [1]
Orbital elements [1]
Semi-major axis:2.22 AU
Eccentricity:0.089152
Inclination:5.58°
Longitude ascending node:202.07°
Argument of perihelion:337.60°
Epoch of elements:21 Nov 2025
Mean Anomaly at epoch:19.14°
Absolute mag (H):10.76 [1]
Slope parameter (G):0.15 [1]
Derived quantities
Perihelion:2.02 AU
Aphelion:2.42 AU
Orbital period:3.31 years

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