121 Hermione (Asteroid)
From South El Monte , 121 Hermione will become visible at around 21:17 (PDT), 41° above your south-western horizon, as dusk fades to darkness. It will then sink towards the horizon, setting at 00:53.
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Name
121 Hermione
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Object type
Asteroid
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Current position
| Computed for: | 07 July 2025 |
| Right ascension: | 13h07m [1] |
| Declination: | −01°30' [1] |
| Constellation: | Virgo |
| Magnitude: | 14.04 (V) [1] |
| Distance: | 3.70 AU 30.73 lightmin [1] |
| Angular motion (speed): | 7.31 arcmin/day[1] |
| Angular motion (pos ang): | 297.0° |
Orbital elements [1]
| Semi-major axis: | 3.46 AU |
| Eccentricity: | 0.125022 |
| Inclination: | 7.57° |
| Longitude ascending node: | 72.87° |
| Argument of perihelion: | 297.07° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 181.91° |
| Absolute mag (H): | 7.43 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 3.02 AU |
| Aphelion: | 3.89 AU |
| Orbital period: | 6.42 years |