540 Rosamunde (Asteroid)
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From Cambridge , 540 Rosamunde is visible in the evening sky, becoming accessible around 21:35 (EDT), 32° above your southern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 22:31, 33° above your southern horizon. It will continue to be observable until around 01:16, when it sinks below 21° above your south-western horizon.
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Name
540 Rosamunde
|
Object type
Asteroid
|
Current position
| Computed for: | 22 July 2026 |
| Right ascension: | 17h50m [1] |
| Declination: | −14°04' [1] |
| Constellation: | Serpens Cauda |
| Magnitude: | 13.91 (V) [1] |
| Distance: | 1.32 AU 10.96 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 Cambridge
All times shown in Cambridge local time.