287 Nephthys (Asteroid)
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From Cambridge , 287 Nephthys is visible in the dawn sky, rising at 02:10 (EDT) – 3 hours and 51 minutes before the Sun – and reaching an altitude of 24° above the south-eastern horizon before fading from view as dawn breaks at around 04:51.
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Name
287 Nephthys
|
Object type
Asteroid
|
Current position
| Computed for: | 15 April 2026 |
| Right ascension: | 20h18m [1] |
| Declination: | −12°14' [1] |
| Constellation: | Capricornus |
| Magnitude: | 12.98 (V) [1] |
| Distance: | 2.23 AU 18.55 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 2.35 AU |
| Eccentricity: | 0.023712 |
| Inclination: | 10.03° |
| Longitude ascending node: | 142.23° |
| Argument of perihelion: | 122.63° |
| Epoch of elements: | 21 Nov 2025 |
| Mean Anomaly at epoch: | 332.64° |
| Absolute mag (H): | 8.26 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 2.30 AU |
| Aphelion: | 2.41 AU |
| Orbital period: | 3.61 years |
Visibility from Cambridge
All times shown in Cambridge local time.