The asteroid 140 Siwa
Finder chart
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From Ashburn (click to change), 140 Siwa is visible in the evening sky, becoming accessible at around 19:23 (EDT) as the dusk sky fades, 29° above your southern horizon. It will then reach its highest point in the sky at 19:37, 29° above your southern horizon. It will continue to be observable until around 21:49, when it sinks to 22° above your south-western horizon.
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Name
140 Siwa
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Object Type
Asteroid
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Current Position
| Constellation: | Capricornus |
| Magnitude: | 12.61 (V)[1] |
| Right Ascension: | 20h32m [1] |
| Declination: | -21°32' [1] |
Orbital Elements[1]
| Semi-major axis: | 2.73 AU |
| Eccentricity: | 0.214037 |
| Inclination: | 3.19° |
| Longitude ascending node: | 107.18° |
| Argument of perihelion: | 196.68° |
| Epoch of elements: | 30 June 2018 |
| Mean Anomaly at epoch: | 353.28° |
Derived quantities
| Perihelion: | 2.15 AU |
| Aphelion: | 3.32 AU |
| Orbital period: | 4.52 years |