312 Pierretta (Asteroid)
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From South El Monte , 312 Pierretta is visible in the evening sky, becoming accessible around 19:56 (PDT), 23° above your southern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 20:37, 24° above your southern horizon. It will continue to be observable until around 21:48, when it sinks below 21° above your southern horizon.
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Name
312 Pierretta
|
Object type
Asteroid
|
Current position
| Computed for: | 16 September 2025 |
| Right ascension: | 19h30m [1] |
| Declination: | −31°51' [1] |
| Constellation: | Sagittarius |
| Magnitude: | 13.27 (V) [1] |
| Distance: | 1.82 AU 15.10 lightmin [1] |
| Angular motion (speed): | 21.40 arcmin/day[1] |
| Angular motion (pos ang): | 259.4° |
Orbital elements [1]
| Semi-major axis: | 2.78 AU |
| Eccentricity: | 0.160290 |
| Inclination: | 9.03° |
| Longitude ascending node: | 6.20° |
| Argument of perihelion: | 261.95° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 341.67° |
| Absolute mag (H): | 8.99 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.34 AU |
| Aphelion: | 3.23 AU |
| Orbital period: | 4.64 years |
Visibility from South El Monte
All times shown in South El Monte local time.