385 Ilmatar (Asteroid)
From South El Monte , 385 Ilmatar is visible in the evening sky, becoming accessible around 19:57 (PDT), 23° above your southern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 21:19, 26° above your southern horizon. It will continue to be observable until around 23:00, when it sinks below 21° above your south-western horizon.
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Name
385 Ilmatar
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Object type
Asteroid
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Current position
| Computed for: | 15 September 2025 |
| Right ascension: | 20h08m [1] |
| Declination: | −29°36' [1] |
| Constellation: | Sagittarius |
| Magnitude: | 13.04 (V) [1] |
| Distance: | 2.41 AU 20.02 lightmin [1] |
| Angular motion (speed): | 13.25 arcmin/day[1] |
| Angular motion (pos ang): | 248.2° |
Orbital elements [1]
| Semi-major axis: | 2.85 AU |
| Eccentricity: | 0.126721 |
| Inclination: | 13.58° |
| Longitude ascending node: | 344.84° |
| Argument of perihelion: | 189.11° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 80.61° |
| Absolute mag (H): | 7.83 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.49 AU |
| Aphelion: | 3.21 AU |
| Orbital period: | 4.81 years |