140 Siwa (Asteroid)
From South El Monte , 140 Siwa is visible in the evening sky, becoming accessible around 20:09 (PDT), 36° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 23:38, 65° above your southern horizon. It will continue to be observable until around 04:18, when it sinks below 21° above your western horizon.
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Name
140 Siwa
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Object type
Asteroid
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Current position
| Computed for: | 28 March 2026 |
| Right ascension: | 11h13m [1] |
| Declination: | +09°34' [1] |
| Constellation: | Leo |
| Magnitude: | 12.99 (V) [1] |
| Distance: | 2.09 AU 17.41 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 2.73 AU |
| Eccentricity: | 0.217955 |
| Inclination: | 3.19° |
| Longitude ascending node: | 107.08° |
| Argument of perihelion: | 197.17° |
| Epoch of elements: | 21 Nov 2025 |
| Mean Anomaly at epoch: | 221.31° |
| Absolute mag (H): | 8.45 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.14 AU |
| Aphelion: | 3.33 AU |
| Orbital period: | 4.51 years |