(90482) Orcus |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Today | 7 May 2025 | 19.1 | 48.010 AU | 47.547 AU | 10h33m | -12°50' | 116.7° | 1.1° |
Opposition | 7 Mar 2026 | 19.0 | 47.993 AU | 47.062 AU | 10h39m | -13°49' | 159.4° | 0.4° |
(90482) Orcus - 2025-05-07
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 Orcus are:
e (Eccentricity) : 0.2231446
a (Semimajor axis) : 39.2890646
i (Inclination) : 20.55553
Ω (Longitude of ascending node) : 268.38604
ω (Argument of perihelion) : 73.79654
M (Mean anomaly) : 187.21828
Epoch : 2025 May 05
L (Longitude of perihelion) : 341.14422
B (Latitude of perihelion) : 19.70440
P (Orbital period in years) : 246.27
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
2025-05-07 00:00 UT 10 33 08.5 -12 50 33 47.547 48.010 116.7 1.1 102 19.1
2025-05-07 03:45 UT 10 33 08.3 -12 50 28 47.550 48.010 116.6 1.1 103 19.1
2025-05-08 00:00 UT 10 33 07.4 -12 50 03 47.561 48.010 115.8 1.1 103 19.1
2025-05-09 00:00 UT 10 33 06.4 -12 49 33 47.575 48.010 114.9 1.1 103 19.1
2025-05-10 00:00 UT 10 33 05.5 -12 49 03 47.589 48.009 114.0 1.1 104 19.1
2025-05-11 00:00 UT 10 33 04.6 -12 48 33 47.604 48.009 113.1 1.1 104 19.1
2025-05-12 00:00 UT 10 33 03.9 -12 48 04 47.618 48.009 112.2 1.1 104 19.1
2025-05-13 00:00 UT 10 33 03.2 -12 47 35 47.633 48.009 111.3 1.1 105 19.1
2025-05-14 00:00 UT 10 33 02.6 -12 47 07 47.647 48.009 110.4 1.1 105 19.1
2025-05-15 00:00 UT 10 33 02.0 -12 46 39 47.662 48.009 109.5 1.1 106 19.1
2025-05-16 00:00 UT 10 33 01.6 -12 46 11 47.677 48.009 108.6 1.1 106 19.1
2025-05-17 00:00 UT 10 33 01.2 -12 45 43 47.692 48.009 107.7 1.1 106 19.1
2025-05-18 00:00 UT 10 33 00.9 -12 45 16 47.706 48.009 106.8 1.2 107 19.1
2025-05-19 00:00 UT 10 33 00.7 -12 44 49 47.722 48.009 105.9 1.2 107 19.1
2025-05-20 00:00 UT 10 33 00.5 -12 44 23 47.737 48.009 105.0 1.2 108 19.1
2025-05-21 00:00 UT 10 33 00.5 -12 43 57 47.752 48.009 104.1 1.2 108 19.1
2025-05-22 00:00 UT 10 33 00.5 -12 43 31 47.767 48.009 103.2 1.2 108 19.1
2025-05-23 00:00 UT 10 33 00.6 -12 43 06 47.783 48.009 102.3 1.2 109 19.1
2025-05-24 00:00 UT 10 33 00.8 -12 42 41 47.798 48.009 101.4 1.2 109 19.1
2025-05-25 00:00 UT 10 33 01.0 -12 42 16 47.813 48.009 100.5 1.2 109 19.1
2025-05-26 00:00 UT 10 33 01.4 -12 41 52 47.829 48.009 99.6 1.2 110 19.1
2025-05-27 00:00 UT 10 33 01.8 -12 41 28 47.845 48.009 98.7 1.2 110 19.1
2025-05-28 00:00 UT 10 33 02.3 -12 41 05 47.860 48.009 97.8 1.2 110 19.1
2025-05-29 00:00 UT 10 33 02.8 -12 40 42 47.876 48.008 96.9 1.2 111 19.1
2025-05-30 00:00 UT 10 33 03.5 -12 40 20 47.892 48.008 96.0 1.2 111 19.1
2025-05-31 00:00 UT 10 33 04.2 -12 39 58 47.907 48.008 95.1 1.2 111 19.1
2025-06-01 00:00 UT 10 33 05.0 -12 39 37 47.923 48.008 94.2 1.2 112 19.1
2025-06-02 00:00 UT 10 33 05.9 -12 39 16 47.939 48.008 93.3 1.2 112 19.1
2025-06-03 00:00 UT 10 33 06.8 -12 38 55 47.955 48.008 92.4 1.2 112 19.1
2025-06-04 00:00 UT 10 33 07.9 -12 38 35 47.970 48.008 91.5 1.2 113 19.1
2025-06-05 00:00 UT 10 33 09.0 -12 38 16 47.986 48.008 90.6 1.2 113 19.1
2025-06-06 00:00 UT 10 33 10.2 -12 37 57 48.002 48.008 89.7 1.2 113 19.1
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.