18 Melpomene (Asteroid)
Finder chart
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From Cambridge , 18 Melpomene is visible between 17:48 and 01:09. It will become accessible at around 17:48, when it rises to an altitude of 21° above your south-eastern horizon. It will reach its highest point in the sky at 21:29, 43° above your southern horizon. It will become inaccessible at around 01:09 when it sinks below 21° above your south-western horizon.
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Name
18 Melpomene
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Object type
Asteroid
|
Current position
| Computed for: | 06 December 2023 |
| Right ascension: | 02h47m [1] |
| Declination: | -03°58' [1] |
| Constellation: | Eridanus |
| Magnitude: | 8.67 (V) [1] |
| Distance: | 1.00 AU 8.29 lightmin [1] |
| Angular motion (speed): | 46.76 arcmin/day[1] |
| Angular motion (pos ang): | 257.4° |
Orbital elements [1]
| Semi-major axis: | 2.30 AU |
| Eccentricity: | 0.218393 |
| Inclination: | 10.13° |
| Longitude ascending node: | 150.36° |
| Argument of perihelion: | 228.15° |
| Epoch of elements: | 13 September 2023 |
| Mean Anomaly at epoch: | 0.40° |
| Absolute mag (H): | 6.34 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 1.79 AU |
| Aphelion: | 2.80 AU |
| Orbital period: | 3.48 years |
Visibility from Cambridge
All times shown in Cambridge local time.
Events
| 08 Jul 2026 | – Asteroid 18 Melpomene at opposition |
| 08 Feb 2028 | – Asteroid 18 Melpomene at opposition |
| 17 Nov 2030 | – Asteroid 18 Melpomene at opposition |
| 16 Jul 2033 | – Asteroid 18 Melpomene at opposition |
| 12 Feb 2035 | – Asteroid 18 Melpomene at opposition |
| 28 Nov 2037 | – Asteroid 18 Melpomene at opposition |
| 23 Jul 2040 | – Asteroid 18 Melpomene at opposition |
| 16 Feb 2042 | – Asteroid 18 Melpomene at opposition |
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