(90482) Orcus |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Today | 14 Feb 2025 | 19.1 | 48.014 AU | 47.149 AU | 10h37m | -13°29' | 150.9° | 0.6° |
Opposition | 6 Mar 2025 | 19.0 | 48.013 AU | 47.082 AU | 10h36m | -13°22' | 159.5° | 0.4° |
(90482) Orcus - 2025-02-14
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) : 0.2262301
a (Semimajor axis) : 39.1904603
i (Inclination) : 20.55896
Ω (Longitude of ascending node) : 268.43116
ω (Argument of perihelion) : 73.77276
M (Mean anomaly) : 185.62301
Epoch : 2024 Mar 31
L (Longitude of perihelion) : 341.16385
B (Latitude of perihelion) : 19.70520
P (Orbital period in years) : 245.34
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
2025-02-14 00:00 UT 10 37 38.8 -13 29 42 47.149 48.014 150.9 0.6 336 19.1
2025-02-14 15:21 UT 10 37 36.2 -13 29 33 47.145 48.014 151.3 0.6 337 19.1
2025-02-15 00:00 UT 10 37 34.7 -13 29 27 47.143 48.014 151.6 0.6 337 19.1
2025-02-16 00:00 UT 10 37 30.5 -13 29 12 47.137 48.014 152.3 0.5 339 19.0
2025-02-17 00:00 UT 10 37 26.4 -13 28 56 47.132 48.014 152.9 0.5 340 19.0
2025-02-18 00:00 UT 10 37 22.2 -13 28 39 47.126 48.013 153.6 0.5 342 19.0
2025-02-19 00:00 UT 10 37 17.9 -13 28 22 47.122 48.013 154.2 0.5 344 19.0
2025-02-20 00:00 UT 10 37 13.7 -13 28 04 47.117 48.013 154.8 0.5 346 19.0
2025-02-21 00:00 UT 10 37 09.5 -13 27 46 47.113 48.013 155.4 0.5 348 19.0
2025-02-22 00:00 UT 10 37 05.2 -13 27 27 47.109 48.013 155.9 0.5 350 19.0
2025-02-23 00:00 UT 10 37 01.0 -13 27 07 47.105 48.013 156.4 0.5 352 19.0
2025-02-24 00:00 UT 10 36 56.7 -13 26 47 47.101 48.013 156.9 0.5 355 19.0
2025-02-25 00:00 UT 10 36 52.5 -13 26 27 47.098 48.013 157.3 0.5 357 19.0
2025-02-26 00:00 UT 10 36 48.2 -13 26 06 47.095 48.013 157.7 0.4 359 19.0
2025-02-27 00:00 UT 10 36 44.0 -13 25 45 47.093 48.013 158.1 0.4 2 19.0
2025-02-28 00:00 UT 10 36 39.7 -13 25 23 47.090 48.013 158.4 0.4 5 19.0
2025-03-01 00:00 UT 10 36 35.4 -13 24 60 47.088 48.013 158.7 0.4 7 19.0
2025-03-02 00:00 UT 10 36 31.2 -13 24 37 47.087 48.013 159.0 0.4 10 19.0
2025-03-03 00:00 UT 10 36 26.9 -13 24 14 47.085 48.013 159.2 0.4 13 19.0
2025-03-04 00:00 UT 10 36 22.7 -13 23 50 47.084 48.013 159.3 0.4 16 19.0
2025-03-05 00:00 UT 10 36 18.5 -13 23 25 47.083 48.013 159.4 0.4 19 19.0
2025-03-06 00:00 UT 10 36 14.2 -13 23 00 47.082 48.013 159.5 0.4 21 19.0
2025-03-07 00:00 UT 10 36 10.0 -13 22 35 47.082 48.013 159.5 0.4 24 19.0
2025-03-08 00:00 UT 10 36 05.8 -13 22 09 47.082 48.013 159.4 0.4 27 19.0
2025-03-09 00:00 UT 10 36 01.7 -13 21 43 47.082 48.013 159.3 0.4 30 19.0
2025-03-10 00:00 UT 10 35 57.5 -13 21 17 47.083 48.012 159.2 0.4 33 19.0
2025-03-11 00:00 UT 10 35 53.4 -13 20 50 47.084 48.012 159.0 0.4 36 19.0
2025-03-12 00:00 UT 10 35 49.2 -13 20 23 47.085 48.012 158.8 0.4 39 19.0
2025-03-13 00:00 UT 10 35 45.1 -13 19 55 47.086 48.012 158.5 0.4 41 19.0
2025-03-14 00:00 UT 10 35 41.0 -13 19 27 47.088 48.012 158.2 0.4 44 19.0
2025-03-15 00:00 UT 10 35 37.0 -13 18 59 47.090 48.012 157.9 0.4 46 19.0
2025-03-16 00:00 UT 10 35 32.9 -13 18 30 47.092 48.012 157.5 0.5 49 19.0
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.