584 Semiramis (Asteroid)
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From Cambridge , 584 Semiramis is visible in the dawn sky, rising at 01:38 (EDT) – 3 hours and 45 minutes before the Sun – and reaching an altitude of 22° above the south-eastern horizon before fading from view as dawn breaks at around 04:04.
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Name
584 Semiramis
|
Object type
Asteroid
|
Current position
| Computed for: | 12 May 2025 |
| Right ascension: | 21h34m [1] |
| Declination: | −11°50' [1] |
| Constellation: | Capricornus |
| Magnitude: | 12.72 (V) [1] |
| Distance: | 1.86 AU 15.49 lightmin [1] |
| Angular motion (speed): | 22.22 arcmin/day[1] |
| Angular motion (pos ang): | 241.7° |
Orbital elements [1]
| Semi-major axis: | 2.37 AU |
| Eccentricity: | 0.233202 |
| Inclination: | 10.72° |
| Longitude ascending node: | 281.99° |
| Argument of perihelion: | 85.39° |
| Epoch of elements: | 25 January 2025 |
| Mean Anomaly at epoch: | 281.63° |
| Absolute mag (H): | 8.49 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 1.82 AU |
| Aphelion: | 2.93 AU |
| Orbital period: | 3.66 years |
Visibility from Cambridge
All times shown in Cambridge local time.