136199 Eris (Dwarf planet)
© NASA/Hubble Space Telescope
Finder chart
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From Seattle , 136199 Eris is visible in the evening sky, becoming accessible around 17:38 (PST), 27° above your south-eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 20:39, 41° above your southern horizon. It will continue to be observable until around 00:18, when it sinks below 21° above your south-western horizon.
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Name
136199 Eris
|
Object type
Dwarf planet
|
Current position
| Constellation: | Cetus |
| Magnitude: | 18.79 (V) [1] |
| Absolute mag (H): | -1.11 [1] |
| Slope parameter (G): | 0.15 [1] |
| Right ascension: | 01h45m [1] |
| Declination: | -01°08' [1] |
| Distance: | 95.21 AU 791.83 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 68.07 AU |
| Eccentricity: | 0.432527 |
| Inclination: | 43.84° |
| Longitude ascending node: | 36.03° |
| Argument of perihelion: | 151.29° |
| Epoch of elements: | 21 January 2022 |
| Mean Anomaly at epoch: | 207.50° |
Derived quantities
| Perihelion: | 38.63 AU |
| Aphelion: | 97.51 AU |
| Orbital period: | 561.60 years |
Visibility from Seattle
All times shown in Seattle local time.
Events
| 14 Apr 2023 | – 136199 Eris at solar conjunction |
| 18 Oct 2023 | – 136199 Eris at opposition |
| 14 Apr 2024 | – 136199 Eris at solar conjunction |
| 17 Oct 2024 | – 136199 Eris at opposition |
| 14 Apr 2025 | – 136199 Eris at solar conjunction |
| 18 Oct 2025 | – 136199 Eris at opposition |
| 15 Apr 2026 | – 136199 Eris at solar conjunction |
| 18 Oct 2026 | – 136199 Eris at opposition |
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