271 Penthesilea (Asteroid)
From South El Monte , 271 Penthesilea is visible in the dawn sky, rising at 03:17 (PST) – 3 hours and 31 minutes before the Sun – and reaching an altitude of 25° above the south-eastern horizon before fading from view as dawn breaks at around 05:44.
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Name
271 Penthesilea
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Object type
Asteroid
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Current position
| Computed for: | 16 December 2025 |
| Right ascension: | 14h23m [1] |
| Declination: | −16°42' [1] |
| Constellation: | Libra |
| Magnitude: | 16.17 (V) [1] |
| Distance: | 3.93 AU 32.70 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 3.00 AU |
| Eccentricity: | 0.103665 |
| Inclination: | 3.53° |
| Longitude ascending node: | 335.19° |
| Argument of perihelion: | 55.95° |
| Epoch of elements: | 21 Nov 2025 |
| Mean Anomaly at epoch: | 169.97° |
| Absolute mag (H): | 9.86 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.69 AU |
| Aphelion: | 3.31 AU |
| Orbital period: | 5.21 years |