(90482) Orcus |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Today | 8 Sep 2024 | 19.1 | 48.021 AU | 48.969 AU | 10h35m | -12°24' | 19.7° | 0.4° |
Opposition | 6 Mar 2025 | 19.0 | 48.013 AU | 47.082 AU | 10h36m | -13°22' | 159.5° | 0.4° |
(90482) Orcus - 2024-09-08
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
2024-09-08 00:00 UT 10 35 49.5 -12 24 30 48.969 48.021 19.7 0.4 203 19.1
2024-09-08 02:19 UT 10 35 49.9 -12 24 33 48.969 48.021 19.7 0.4 204 19.1
2024-09-09 00:00 UT 10 35 54.5 -12 25 03 48.968 48.021 19.7 0.4 206 19.1
2024-09-10 00:00 UT 10 35 59.5 -12 25 36 48.968 48.021 19.8 0.4 209 19.1
2024-09-11 00:00 UT 10 36 04.6 -12 26 10 48.967 48.021 19.9 0.4 212 19.1
2024-09-12 00:00 UT 10 36 09.6 -12 26 45 48.965 48.021 20.0 0.4 214 19.1
2024-09-13 00:00 UT 10 36 14.6 -12 27 19 48.964 48.021 20.2 0.4 217 19.1
2024-09-14 00:00 UT 10 36 19.6 -12 27 54 48.962 48.021 20.5 0.4 220 19.1
2024-09-15 00:00 UT 10 36 24.5 -12 28 29 48.960 48.021 20.7 0.4 222 19.1
2024-09-16 00:00 UT 10 36 29.5 -12 29 05 48.958 48.021 21.0 0.4 225 19.1
2024-09-17 00:00 UT 10 36 34.4 -12 29 41 48.955 48.021 21.4 0.4 227 19.1
2024-09-18 00:00 UT 10 36 39.3 -12 30 17 48.952 48.021 21.8 0.4 230 19.1
2024-09-19 00:00 UT 10 36 44.1 -12 30 53 48.949 48.021 22.2 0.5 232 19.1
2024-09-20 00:00 UT 10 36 49.0 -12 31 30 48.946 48.021 22.6 0.5 234 19.1
2024-09-21 00:00 UT 10 36 53.8 -12 32 07 48.942 48.021 23.1 0.5 236 19.1
2024-09-22 00:00 UT 10 36 58.6 -12 32 44 48.938 48.021 23.6 0.5 238 19.1
2024-09-23 00:00 UT 10 37 03.4 -12 33 22 48.934 48.021 24.2 0.5 240 19.1
2024-09-24 00:00 UT 10 37 08.1 -12 33 60 48.930 48.020 24.7 0.5 242 19.1
2024-09-25 00:00 UT 10 37 12.9 -12 34 38 48.925 48.020 25.3 0.5 244 19.1
2024-09-26 00:00 UT 10 37 17.5 -12 35 16 48.920 48.020 25.9 0.5 246 19.1
2024-09-27 00:00 UT 10 37 22.2 -12 35 55 48.915 48.020 26.5 0.5 247 19.1
2024-09-28 00:00 UT 10 37 26.8 -12 36 33 48.910 48.020 27.2 0.5 249 19.1
2024-09-29 00:00 UT 10 37 31.4 -12 37 12 48.904 48.020 27.8 0.6 251 19.1
2024-09-30 00:00 UT 10 37 35.9 -12 37 52 48.898 48.020 28.5 0.6 252 19.1
2024-10-01 00:00 UT 10 37 40.5 -12 38 31 48.892 48.020 29.2 0.6 253 19.1
2024-10-02 00:00 UT 10 37 44.9 -12 39 10 48.885 48.020 29.9 0.6 255 19.1
2024-10-03 00:00 UT 10 37 49.4 -12 39 50 48.879 48.020 30.6 0.6 256 19.1
2024-10-04 00:00 UT 10 37 53.7 -12 40 30 48.872 48.020 31.3 0.6 257 19.1
2024-10-05 00:00 UT 10 37 58.1 -12 41 10 48.865 48.020 32.1 0.6 258 19.1
2024-10-06 00:00 UT 10 38 02.4 -12 41 50 48.857 48.020 32.8 0.6 260 19.1
2024-10-07 00:00 UT 10 38 06.7 -12 42 30 48.849 48.020 33.6 0.7 261 19.1
2024-10-08 00:00 UT 10 38 10.9 -12 43 11 48.841 48.020 34.4 0.7 262 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.