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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 4:45 
Transit: 13:02 
Sunset: 21:19
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Dwarf Planets and Asteroids » 

Asteroid 136199 Eris

Above the horizon.  Rise: 2:37 | Tran: 8:35 | Set: 14:33
Alt: 35.17°   Az: 207.80°   Direction: South-West

Asteroid 136199 Eris is in the constellation of Cetus, at a distance of 14,351,567,104.0 kilometers from Earth. The current Right Ascension is 01h 50m 32s and the Declination is +00° 00’ 59” (apparent coordinates). The magnitude of asteroid 136199 Eris is 18.68.

Finder Charts

The sky charts below show, at different resolutions, the position of asteroid 136199 Eris in the sky. Click on each chart to access the interactive star map tool.

Star map showing the position of asteroid 136199 Eris in the constellation of Cetus on F, d Y. Field of view: 50x30 degrees. View interactive star map.
Star map showing the position of asteroid 136199 Eris in the constellation of Cetus on F, d Y. Field of view: 15x9 degrees. View in interactive star map.

The following map uses photographic imagery from the Digitized Sky Survey (DSS) to realistically visualize the precise position of asteroid 136199 Eris against the stars in the background. The horizontal size of the map measures 60 arcminutes. Click on the image to access a more detailed full-screen view.

136199 Eris
RA: 01h 49m 14s
Dec: -00° 06’ 33”
Simplified high-resolution deep sky chart showing the current position of asteroid 136199 Eris. Field of view: 60 x 40 arcminutes. Go to the dedicated page

Equatorial Coordinates

Apparent

01h 50m 32s
+00° 00’ 59”
01h 29m 39s
03h 20m 11s

J2000

01h 49m 14s
-00° 06’ 33”

Additional Information

Cetus
18.68

Rise and Set Times

The following table lists today's rise, transit and set times of asteroid 136199 Eris from Greenwich, UK (all times relative to the local timezone Europe/London):

Azimuth: 90.0°
Max altitude: 38.5°
Azimuth: 270.0°

If you need to access this information frequently for your observations, you can create a simple customized Quick Access page, so that you can easily bookmark it in your browser favorites or add a shortcut to your mobile phones' home screen.

Distance from Earth

The distance of asteroid 136199 Eris from Earth is currently 14,351,567,104.0 kilometers, equivalent to 95.9343006478 Astronomical Units. Light takes 13h 17m 51.675s to travel from asteroid 136199 Eris and arrive to us.

14,351,567,104.0
95.9343006478
13h 17m 51.675s

The following graph shows the distance of asteroid 136199 Eris from Earth as a function of time. In the chart the distance is measured in Astronomical Units and the data is sampled with an interval of 1 day.

Chart of the distance of asteroid 136199 Eris from Earth in Astronomical Units (au)
Note: The values in this chart may not be entirely accurate around the time of closest approach for objects passing very close to Earth at high speed (e.g., Near-Earth Objects).

The value of the distance of 136199 Eris from Earth is also available as a real time updated value in the live position tracker.

Closest Approach to Earth

In the period between January 1, 2000 and December 31, 2099, the closest approach of asteroid 136199 Eris to Earth will happen on Saturday 7 November 2099 at a distance of 82.987801 Astronomical Units, or 12,414,798,366 kilometers:

Saturday 7 November 2099
12,414,798,366
82.987801

Note: the values for the closest approach are computed with a sampling interval of 1 day.

Light Curve

The following chart shows the light curve of asteroid 136199 Eris, i.e., its apparent magnitude as a function of time. The curve is calculated using the latest ephemerides provided by JPL Horizons. The magnitude data is sampled with the interval of 2 days. Because of this sampling, inaccuracies may occur for objects that have large variations of brightness over a few days. For comets, large discrepancies can arise between the calculated brightness and the observations due to their highly dynamic, and not always precisely predictable, behavior.

Chart of the magnitude of asteroid 136199 Eris as a function of time

Orbital Elements

The following table lists the orbital elements of asteroid 136199 Eris at epoch October, 16 2024 00:00 UTC (JD: 2460600.5). Source: JPL Small-Body Database

Element Symbol Value
Orbit eccentricity e 0.43430536
Orbit inclination i 43.77778518°
Perihelion distance q 38.52548013 AU
5,763,329,807 km
Aphelion distance Q 97.68044305 AU
14,612,786,318 km
Semi-major axis a 68.10296159 AU
10,188,058,063 km
Orbital period period 562.0270 years
205,280.3713 days
Date of perihelion transit Tp February 10, 2258
2,545,817.7375 JD
Argument of perihelion peri 150.72328105751°
Longitude of the ascending node node 36.063737942483°
Mean anomaly M 210.55460827385°
Mean motion n 0.00175370°/day

Orbit Visualization

The following chart is a 3D animated visualization of the orbit of asteroid 136199 Eris relative to the other major objects in the Solar System. You can access more advanced features using our 3D Solar System Viewer.

Physical Properties

The table below lists the known key physical properties of asteroid 136199 Eris. The source for this data is the JPL Small-Body Database.

Physical Parameter Value Relative to Earth
Sideral Rotation 25.9000 hours 1.0821
Absolute Magnitude -1.2

15 Days Ephemeris

The following table lists the ephemerides of asteroid 136199 Eris computed for the past and next 7 days, with a 24 hours interval. Apparent celestial coordinates are provided.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Constellation
Jun 18 2025 01h 50m 24s +00° 00’ 41” 18.68 Cetus
Jun 19 2025 01h 50m 25s +00° 00’ 45” 18.68 Cetus
Jun 20 2025 01h 50m 26s +00° 00’ 48” 18.68 Cetus
Jun 21 2025 01h 50m 28s +00° 00’ 50” 18.68 Cetus
Jun 22 2025 01h 50m 29s +00° 00’ 53” 18.68 Cetus
Jun 23 2025 01h 50m 30s +00° 00’ 55” 18.68 Cetus
Jun 24 2025 01h 50m 31s +00° 00’ 57” 18.68 Cetus
Jun 25 2025 01h 50m 32s +00° 00’ 59” 18.68 Cetus
Jun 26 2025 01h 50m 33s +00° 01’ 01” 18.68 Cetus
Jun 27 2025 01h 50m 34s +00° 01’ 01” 18.68 Cetus
Jun 28 2025 01h 50m 35s +00° 01’ 02” 18.68 Cetus
Jun 29 2025 01h 50m 36s +00° 01’ 03” 18.68 Cetus
Jun 30 2025 01h 50m 37s +00° 01’ 04” 18.68 Cetus
Jul 01 2025 01h 50m 38s +00° 01’ 04” 18.68 Cetus

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