140 Siwa (Asteroid)
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From Cambridge , 140 Siwa is visible in the evening sky, becoming accessible around 17:24 (EST), 41° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 19:26, 50° above your southern horizon. It will continue to be observable until around 23:34, when it sinks below 21° above your western horizon.
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Name
140 Siwa
|
Object type
Asteroid
|
Current position
| Computed for: | 11 December 2023 |
| Right ascension: | 01h03m [1] |
| Declination: | +02°31' [1] |
| Constellation: | Cetus |
| Magnitude: | 13.13 (V) [1] |
| Distance: | 2.02 AU 16.79 lightmin [1] |
| Angular motion (speed): | 18.39 arcmin/day[1] |
| Angular motion (pos ang): | 247.6° |
Orbital elements [1]
| Semi-major axis: | 2.73 AU |
| Eccentricity: | 0.214375 |
| Inclination: | 3.19° |
| Longitude ascending node: | 107.16° |
| Argument of perihelion: | 197.13° |
| Epoch of elements: | 13 September 2023 |
| Mean Anomaly at epoch: | 47.03° |
| Absolute mag (H): | 8.53 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.15 AU |
| Aphelion: | 3.32 AU |
| Orbital period: | 4.52 years |
Visibility from Cambridge
All times shown in Cambridge local time.