399 Persephone (Asteroid)
From South El Monte , 399 Persephone will become visible at around 17:57 (PST), 37° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 21:24.
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Name
399 Persephone
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Object type
Asteroid
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Current position
| Computed for: | 01 January 2026 |
| Right ascension: | 22h36m [1] |
| Declination: | −07°22' [1] |
| Constellation: | Aquarius |
| Magnitude: | 15.16 (V) [1] |
| Distance: | 3.71 AU 30.84 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 3.05 AU |
| Eccentricity: | 0.077139 |
| Inclination: | 13.12° |
| Longitude ascending node: | 346.17° |
| Argument of perihelion: | 192.33° |
| Epoch of elements: | 21 Nov 2025 |
| Mean Anomaly at epoch: | 165.62° |
| Absolute mag (H): | 8.91 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.82 AU |
| Aphelion: | 3.29 AU |
| Orbital period: | 5.33 years |