86 Semele (Asteroid)

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From South El Monte , 86 Semele is visible in the dawn sky, rising at 02:40 (PDT) – 3 hours and 53 minutes before the Sun – and reaching an altitude of 34° above the eastern horizon before fading from view as dawn breaks at around 05:34.

Name 86 Semele
Object type Asteroid
Current position
Computed for:16 September 2025
Right ascension:08h32m [1]
Declination:+20°28' [1]
Constellation:Cancer
Magnitude:14.44 (V) [1]
Distance:3.37 AU
28.07 lightmin [1]
Angular motion (speed):9.81 arcmin/day[1]
Angular motion (pos ang):279.9°
Orbital elements [1]
Semi-major axis:3.10 AU
Eccentricity:0.216821
Inclination:4.82°
Longitude ascending node:86.07°
Argument of perihelion:309.07°
Epoch of elements:25 January 2025
Mean Anomaly at epoch:9.90°
Absolute mag (H):8.71 [1]
Slope parameter (G):0.15 [1]
Derived quantities
Perihelion:2.43 AU
Aphelion:3.78 AU
Orbital period:5.47 years

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