138 Tolosa (Asteroid)

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From South El Monte , 138 Tolosa is visible in the dawn sky, rising at 22:24 (PST) and reaching an altitude of 76° above the southern horizon before fading from view as dawn breaks at around 05:11.

Name 138 Tolosa
Object type Asteroid
Current position
Computed for:04 November 2025
Right ascension:08h33m [1]
Declination:+21°34' [1]
Constellation:Cancer
Magnitude:14.24 (V) [1]
Distance:2.48 AU
20.60 lightmin [1]
Angular motion (speed):11.95 arcmin/day[1]
Angular motion (pos ang):283.1°
Orbital elements [1]
Semi-major axis:2.45 AU
Eccentricity:0.161695
Inclination:3.20°
Longitude ascending node:54.72°
Argument of perihelion:260.74°
Epoch of elements:25 January 2025
Mean Anomaly at epoch:65.61°
Absolute mag (H):9.03 [1]
Slope parameter (G):0.15 [1]
Derived quantities
Perihelion:2.05 AU
Aphelion:2.85 AU
Orbital period:3.83 years

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