404 Arsinoe (Asteroid)
From South El Monte , 404 Arsinoe is visible between 21:53 and 01:38. It will become accessible at around 21:53, when it rises to an altitude of 21° above your south-eastern horizon. It will reach its highest point in the sky at 23:46, 27° above your southern horizon. It will become inaccessible at around 01:38 when it sinks below 21° above your south-western horizon.
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Name
404 Arsinoe
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Object type
Asteroid
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Current position
| Computed for: | 19 September 2025 |
| Right ascension: | 22h51m [1] |
| Declination: | −28°33' [1] |
| Constellation: | Piscis Austrinus |
| Magnitude: | 13.49 (V) [1] |
| Distance: | 1.93 AU 16.07 lightmin [1] |
| Angular motion (speed): | 17.31 arcmin/day[1] |
| Angular motion (pos ang): | 252.6° |
Orbital elements [1]
| Semi-major axis: | 2.59 AU |
| Eccentricity: | 0.201475 |
| Inclination: | 14.10° |
| Longitude ascending node: | 92.47° |
| Argument of perihelion: | 120.57° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 52.97° |
| Absolute mag (H): | 9.13 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.07 AU |
| Aphelion: | 3.11 AU |
| Orbital period: | 4.17 years |