(136199) Eris |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Today | 9 Oct 2025 | 18.6 | 95.546 AU | 94.577 AU | 01h47m | -00°20' | 165.9° | 0.1° |
Opposition | 17 Oct 2025 | 18.6 | 95.544 AU | 94.564 AU | 01h47m | -00°22' | 169.3° | 0.1° |
(136199) Eris - 2025-10-09
astro.vanbuitenen.nl
The interactive orbit chart above shows the body's path through the solar system and its position at the given date.
Green and blue lines are shown perpendicular to the ecliptic plane: Green if the path is above the ecliptic plane, blue if it is below.
(Left-click and drag to rotate the view; Right-click and drag to move the view; Use scroll wheel to zoom in our out.)
The orbital elements of Eris are:
e (Eccentricity) : 0.4356757
a (Semimajor axis) : 68.0516301
i (Inclination) : 43.82172
Ω (Longitude of ascending node) : 36.04599
ω (Argument of perihelion) : 150.70976
M (Mean anomaly) : 211.04229
Epoch : 2025 May 05
L (Longitude of perihelion) : 14.01162
B (Latitude of perihelion) : 19.80096
P (Orbital period in years) : 561.38
The light curve chart below shows the estimated development of the minor planet's magnitude.
The all-sky chart below shows the path of the minor planet over the same period as the light curve. The current position is marked yellow.
The following chart shows the path of the minor planet in the next few days. The field of view is optimized for (~10x50) binoculars and finderscopes.
A more printer-friendly version of the same chart can be found below.
Ephemerides:
Date Time RA (2000) DEC (2000) delta radius elong phase PA magn
2025-10-09 00:00 UT 01 47 51.9 +00 20 34 94.577 95.546 165.9 0.1 297 18.6
2025-10-09 21:33 UT 01 47 49.9 +00 20 45 94.575 95.545 166.4 0.1 300 18.6
2025-10-10 00:00 UT 01 47 49.7 +00 20 46 94.574 95.545 166.5 0.1 301 18.6
2025-10-11 00:00 UT 01 47 47.5 +00 20 58 94.572 95.545 167.1 0.1 304 18.6
2025-10-12 00:00 UT 01 47 45.3 +00 21 09 94.570 95.545 167.6 0.1 308 18.6
2025-10-13 00:00 UT 01 47 43.1 +00 21 21 94.568 95.545 168.1 0.1 312 18.6
2025-10-14 00:00 UT 01 47 40.8 +00 21 32 94.567 95.544 168.5 0.1 317 18.6
2025-10-15 00:00 UT 01 47 38.6 +00 21 43 94.566 95.544 168.8 0.1 322 18.6
2025-10-16 00:00 UT 01 47 36.3 +00 21 55 94.565 95.544 169.1 0.1 327 18.6
2025-10-17 00:00 UT 01 47 34.1 +00 22 06 94.565 95.544 169.2 0.1 332 18.6
2025-10-18 00:00 UT 01 47 31.8 +00 22 17 94.564 95.544 169.3 0.1 337 18.6
2025-10-19 00:00 UT 01 47 29.6 +00 22 27 94.564 95.543 169.3 0.1 343 18.6
2025-10-20 00:00 UT 01 47 27.3 +00 22 38 94.565 95.543 169.2 0.1 348 18.6
2025-10-21 00:00 UT 01 47 25.0 +00 22 49 94.566 95.543 169.0 0.1 353 18.6
2025-10-22 00:00 UT 01 47 22.8 +00 22 59 94.567 95.543 168.7 0.1 358 18.6
2025-10-23 00:00 UT 01 47 20.5 +00 23 10 94.568 95.542 168.3 0.1 3 18.6
2025-10-24 00:00 UT 01 47 18.2 +00 23 20 94.569 95.542 167.9 0.1 7 18.6
2025-10-25 00:00 UT 01 47 16.0 +00 23 30 94.571 95.542 167.4 0.1 11 18.6
2025-10-26 00:00 UT 01 47 13.7 +00 23 40 94.573 95.542 166.8 0.1 15 18.6
2025-10-27 00:00 UT 01 47 11.5 +00 23 50 94.576 95.541 166.2 0.1 18 18.6
2025-10-28 00:00 UT 01 47 09.2 +00 23 59 94.579 95.541 165.6 0.1 22 18.6
2025-10-29 00:00 UT 01 47 07.0 +00 24 09 94.582 95.541 164.9 0.2 25 18.6
2025-10-30 00:00 UT 01 47 04.7 +00 24 18 94.585 95.541 164.1 0.2 27 18.6
2025-10-31 00:00 UT 01 47 02.5 +00 24 27 94.589 95.540 163.4 0.2 30 18.6
2025-11-01 00:00 UT 01 47 00.2 +00 24 36 94.593 95.540 162.6 0.2 32 18.6
2025-11-02 00:00 UT 01 46 58.0 +00 24 45 94.597 95.540 161.8 0.2 34 18.6
2025-11-03 00:00 UT 01 46 55.8 +00 24 54 94.601 95.540 161.0 0.2 36 18.6
2025-11-04 00:00 UT 01 46 53.6 +00 25 02 94.606 95.539 160.1 0.2 37 18.6
2025-11-05 00:00 UT 01 46 51.4 +00 25 11 94.611 95.539 159.3 0.2 39 18.6
2025-11-06 00:00 UT 01 46 49.2 +00 25 19 94.616 95.539 158.4 0.2 40 18.6
2025-11-07 00:00 UT 01 46 47.0 +00 25 27 94.622 95.539 157.5 0.2 42 18.6
2025-11-08 00:00 UT 01 46 44.9 +00 25 35 94.628 95.538 156.7 0.2 43 18.6
Terminology:
delta: distance between minor planet and earth in AU
radius: distance between minor planet and sun in AU
magn: magnitude (brightness) estimate
ra: right ascension in hours (24h = 360deg)
dec: declination in degrees
elong: elongation in degrees (angle sun-earth-minor planet)
phase: phase angle in degrees (angle sun-minor planet-earth)
AU: Astronomical Unit (mean distance between earth and sun: 149597870.7 km
Orbital elements provided by the MPC (Minor Planet Center).
Calculations by a modified version of AAPlus, a C# implementation of the AA+ project by PJ Naughter from the algorithms presented in the book "Astronomical Algorithms" by Jean Meeus.
NGC2000 dso catalog and star labels from VizieR as provided by the Strasbourg astronomical Data Center.
Tycho2 catalog from the ESO archive.