(386) Siegena |
ephemeris |
date |
magn |
radius |
delta |
ra |
dec |
elong |
phase |
Today | 10 Oct 2025 | 11.9 | 2.434 AU | 1.735 AU | 04h43m | -03°42' | 123.5° | 20.0° |
Opposition | 23 Nov 2025 | 11.4 | 2.471 AU | 1.576 AU | 04h24m | -10°33' | 148.3° | 12.1° |
(386) Siegena - 2025-10-10
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 Siegena are:
e (Eccentricity) : 0.1692815
a (Semimajor axis) : 2.8973697
i (Inclination) : 20.21922
Ω (Longitude of ascending node) : 166.61219
ω (Argument of perihelion) : 221.15380
M (Mean anomaly) : 24.30067
Epoch : 2025 Nov 21
L (Longitude of perihelion) : 205.96913
B (Latitude of perihelion) : -13.14651
P (Orbital period in years) : 4.93
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
2025-10-10 00:00 UT 04 43 41.5 -03 42 36 1.735 2.434 123.5 20.0 280 11.9
2025-10-10 04:45 UT 04 43 43.1 -03 44 52 1.734 2.434 123.7 20.0 280 11.9
2025-10-11 00:00 UT 04 43 49.1 -03 54 07 1.728 2.435 124.3 19.8 281 11.9
2025-10-12 00:00 UT 04 43 54.9 -04 05 39 1.721 2.435 125.1 19.6 282 11.8
2025-10-13 00:00 UT 04 43 59.0 -04 17 12 1.713 2.436 125.8 19.4 283 11.8
2025-10-14 00:00 UT 04 44 01.3 -04 28 44 1.706 2.437 126.6 19.2 283 11.8
2025-10-15 00:00 UT 04 44 01.9 -04 40 16 1.699 2.437 127.4 19.0 284 11.8
2025-10-16 00:00 UT 04 44 00.8 -04 51 48 1.692 2.438 128.2 18.8 285 11.8
2025-10-17 00:00 UT 04 43 57.9 -05 03 17 1.686 2.439 128.9 18.5 286 11.8
2025-10-18 00:00 UT 04 43 53.2 -05 14 45 1.679 2.439 129.7 18.3 287 11.8
2025-10-19 00:00 UT 04 43 46.9 -05 26 11 1.673 2.440 130.5 18.1 288 11.7
2025-10-20 00:00 UT 04 43 38.8 -05 37 33 1.667 2.441 131.2 17.9 289 11.7
2025-10-21 00:00 UT 04 43 28.9 -05 48 52 1.661 2.442 132.0 17.6 290 11.7
2025-10-22 00:00 UT 04 43 17.4 -06 00 08 1.655 2.442 132.7 17.4 291 11.7
2025-10-23 00:00 UT 04 43 04.2 -06 11 18 1.649 2.443 133.5 17.2 292 11.7
2025-10-24 00:00 UT 04 42 49.2 -06 22 24 1.644 2.444 134.2 17.0 293 11.7
2025-10-25 00:00 UT 04 42 32.6 -06 33 24 1.639 2.445 134.9 16.7 294 11.7
2025-10-26 00:00 UT 04 42 14.4 -06 44 17 1.634 2.445 135.7 16.5 295 11.6
2025-10-27 00:00 UT 04 41 54.6 -06 55 04 1.629 2.446 136.4 16.3 297 11.6
2025-10-28 00:00 UT 04 41 33.1 -07 05 44 1.624 2.447 137.1 16.1 298 11.6
2025-10-29 00:00 UT 04 41 10.1 -07 16 16 1.620 2.448 137.8 15.8 299 11.6
2025-10-30 00:00 UT 04 40 45.5 -07 26 39 1.615 2.449 138.4 15.6 300 11.6
2025-10-31 00:00 UT 04 40 19.4 -07 36 54 1.611 2.450 139.1 15.4 302 11.6
2025-11-01 00:00 UT 04 39 51.8 -07 46 59 1.607 2.450 139.8 15.2 303 11.6
2025-11-02 00:00 UT 04 39 22.8 -07 56 54 1.603 2.451 140.4 14.9 305 11.6
2025-11-03 00:00 UT 04 38 52.4 -08 06 38 1.600 2.452 141.0 14.7 306 11.5
2025-11-04 00:00 UT 04 38 20.6 -08 16 12 1.597 2.453 141.7 14.5 308 11.5
2025-11-05 00:00 UT 04 37 47.4 -08 25 33 1.593 2.454 142.2 14.3 309 11.5
2025-11-06 00:00 UT 04 37 12.9 -08 34 43 1.591 2.455 142.8 14.1 311 11.5
2025-11-07 00:00 UT 04 36 37.2 -08 43 40 1.588 2.455 143.4 13.9 313 11.5
2025-11-08 00:00 UT 04 36 00.2 -08 52 23 1.585 2.456 143.9 13.8 315 11.5
2025-11-09 00:00 UT 04 35 22.1 -09 00 54 1.583 2.457 144.4 13.6 316 11.5
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.