136199 Eris (Dwarf planet)
© NASA/Hubble Space Telescope
From South El Monte , 136199 Eris is visible in the morning sky, becoming accessible around 00:33, when it reaches an altitude of 21° above your eastern horizon. It will then reach its highest point in the sky at 04:46, 56° above your southern horizon. It will be lost to dawn twilight around 05:11, 55° above your southern horizon.
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Name
136199 Eris
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Object type
Dwarf planet
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Current position
| Computed for: | 20 August 2026 |
| Right ascension: | 01h49m [1] |
| Declination: | +00°05' [1] |
| Constellation: | Cetus |
| Magnitude: | 18.63 (V) [1] |
| Distance: | 94.95 AU 789.65 lightmin [1] |
Orbital elements [1]
| Semi-major axis: | 67.94 AU |
| Eccentricity: | 0.438217 |
| Inclination: | 43.93° |
| Longitude ascending node: | 36.00° |
| Argument of perihelion: | 150.79° |
| Epoch of elements: | 9 Jun 2026 |
| Mean Anomaly at epoch: | 211.78° |
| Absolute mag (H): | -1.26 [1] |
| Slope parameter (G): | 0.15 [1] |
Derived quantities
| Perihelion: | 38.17 AU |
| Aphelion: | 97.71 AU |
| Orbital period: | 559.96 years |
Source
Events
| 18 Oct 2026 | – 136199 Eris at opposition |
| 15 Apr 2027 | – 136199 Eris at solar conjunction |
| 18 Oct 2027 | – 136199 Eris at opposition |
| 14 Apr 2028 | – 136199 Eris at solar conjunction |
| 18 Oct 2028 | – 136199 Eris at opposition |
| 15 Apr 2029 | – 136199 Eris at solar conjunction |
| 18 Oct 2029 | – 136199 Eris at opposition |
| 15 Apr 2030 | – 136199 Eris at solar conjunction |
Printable finder charts
