257 Silesia (Asteroid)
From South El Monte , 257 Silesia is visible in the dawn sky, rising at 23:39 (PDT) and reaching an altitude of 62° above the south-eastern horizon before fading from view as dawn breaks at around 04:57.
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Name
257 Silesia
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Object type
Asteroid
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Current position
| Computed for: | 05 August 2026 |
| Right ascension: | 02h21m [1] |
| Declination: | +12°52' [1] |
| Constellation: | Aries |
| Magnitude: | 15.06 (V) [1] |
| Distance: | 2.60 AU 21.60 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 3.12 AU |
| Eccentricity: | 0.112297 |
| Inclination: | 3.61° |
| Longitude ascending node: | 34.02° |
| Argument of perihelion: | 32.34° |
| Epoch of elements: | 9 Jun 2026 |
| Mean Anomaly at epoch: | 309.46° |
| Absolute mag (H): | 9.68 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.77 AU |
| Aphelion: | 3.47 AU |
| Orbital period: | 5.51 years |
Source