540 Rosamunde (Asteroid)
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From South El Monte , 540 Rosamunde is visible in the evening sky, becoming accessible around 21:05 (PDT), 38° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 22:25, 41° above your southern horizon. It will continue to be observable until around 01:47, when it sinks below 21° above your south-western horizon.
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Name
540 Rosamunde
|
Object type
Asteroid
|
Current position
| Computed for: | 25 July 2026 |
| Right ascension: | 17h49m [1] |
| Declination: | −14°10' [1] |
| Constellation: | Serpens Cauda |
| Magnitude: | 14.00 (V) [1] |
| Distance: | 1.34 AU 11.15 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 2.22 AU |
| Eccentricity: | 0.089236 |
| Inclination: | 5.58° |
| Longitude ascending node: | 202.06° |
| Argument of perihelion: | 337.67° |
| Epoch of elements: | 9 Jun 2026 |
| Mean Anomaly at epoch: | 78.71° |
| Absolute mag (H): | 10.76 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.02 AU |
| Aphelion: | 2.42 AU |
| Orbital period: | 3.31 years |
Source
Visibility from South El Monte
All times shown in South El Monte local time.