140 Siwa (Asteroid)
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From South El Monte , 140 Siwa is visible in the dawn sky, rising at 03:22 (PDT) – 3 hours and 34 minutes before the Sun – and reaching an altitude of 31° above the eastern horizon before fading from view as dawn breaks at around 05:57.
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Name
140 Siwa
|
Object type
Asteroid
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Current position
| Computed for: | 17 October 2025 |
| Right ascension: | 10h45m [1] |
| Declination: | +09°43' [1] |
| Constellation: | Leo |
| Magnitude: | 14.73 (V) [1] |
| Distance: | 3.89 AU 32.35 lightmin [1] |
| Angular motion (speed): | 7.52 arcmin/day[1] |
| Angular motion (pos ang): | 290.1° |
Orbital elements [1]
| Semi-major axis: | 2.73 AU |
| Eccentricity: | 0.216803 |
| Inclination: | 3.19° |
| Longitude ascending node: | 107.07° |
| Argument of perihelion: | 197.17° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 155.83° |
| Absolute mag (H): | 8.48 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.14 AU |
| Aphelion: | 3.33 AU |
| Orbital period: | 4.52 years |
Visibility from South El Monte
All times shown in South El Monte local time.