(386) Siegena
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	23 Nov 2025	11.4	2.471 AU	1.576 AU	04h24m	-10°33'	148.3°	12.1°
Today	14 Jan 2026	12.2	2.530 AU	1.911 AU	03h58m	-07°20'	118.3°	20.0°

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.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2026-01-14 00:00 UT   03 58 24.9   -07 20 19     1.911    2.530  118.3   20.0    61   12.2 
2026-01-14 12:51 UT   03 58 27.3   -07 15 13     1.917    2.531  117.9   20.1    61   12.2 
2026-01-15 00:00 UT   03 58 29.7   -07 10 46     1.922    2.531  117.5   20.2    62   12.2 
2026-01-16 00:00 UT   03 58 36.1   -07 01 05     1.933    2.533  116.7   20.3    62   12.2 
2026-01-17 00:00 UT   03 58 44.0   -06 51 19     1.944    2.534  115.9   20.4    63   12.2 
2026-01-18 00:00 UT   03 58 53.5   -06 41 26     1.955    2.535  115.2   20.6    63   12.2 
2026-01-19 00:00 UT   03 59 04.5   -06 31 28     1.967    2.537  114.4   20.7    64   12.3 
2026-01-20 00:00 UT   03 59 17.0   -06 21 25     1.978    2.538  113.6   20.8    65   12.3 
2026-01-21 00:00 UT   03 59 31.0   -06 11 17     1.990    2.539  112.9   20.9    65   12.3 
2026-01-22 00:00 UT   03 59 46.6   -06 01 05     2.001    2.541  112.1   21.0    66   12.3 
2026-01-23 00:00 UT   04 00 03.6   -05 50 48     2.013    2.542  111.3   21.1    66   12.3 
2026-01-24 00:00 UT   04 00 22.1   -05 40 27     2.025    2.543  110.6   21.2    67   12.3 
2026-01-25 00:00 UT   04 00 42.0   -05 30 03     2.037    2.545  109.8   21.3    67   12.4 
2026-01-26 00:00 UT   04 01 03.5   -05 19 36     2.048    2.546  109.1   21.4    68   12.4 
2026-01-27 00:00 UT   04 01 26.3   -05 09 06     2.061    2.547  108.3   21.5    68   12.4 
2026-01-28 00:00 UT   04 01 50.6   -04 58 33     2.073    2.549  107.5   21.6    69   12.4 
2026-01-29 00:00 UT   04 02 16.2   -04 47 58     2.085    2.550  106.8   21.7    69   12.4 
2026-01-30 00:00 UT   04 02 43.3   -04 37 20     2.097    2.552  106.1   21.8    70   12.4 
2026-01-31 00:00 UT   04 03 11.7   -04 26 41     2.109    2.553  105.3   21.9    70   12.5 
2026-02-01 00:00 UT   04 03 41.4   -04 16 01     2.122    2.554  104.6   21.9    71   12.5 
2026-02-02 00:00 UT   04 04 12.5   -04 05 19     2.134    2.556  103.8   22.0    71   12.5 
2026-02-03 00:00 UT   04 04 44.9   -03 54 36     2.147    2.557  103.1   22.0    72   12.5 
2026-02-04 00:00 UT   04 05 18.6   -03 43 52     2.159    2.559  102.4   22.1    72   12.5 
2026-02-05 00:00 UT   04 05 53.5   -03 33 08     2.172    2.560  101.6   22.2    73   12.5 
2026-02-06 00:00 UT   04 06 29.8   -03 22 22     2.185    2.561  100.9   22.2    73   12.6 
2026-02-07 00:00 UT   04 07 07.3   -03 11 37     2.197    2.563  100.2   22.3    74   12.6 
2026-02-08 00:00 UT   04 07 46.0   -03 00 52     2.210    2.564   99.5   22.3    74   12.6 
2026-02-09 00:00 UT   04 08 25.9   -02 50 06     2.223    2.566   98.7   22.3    74   12.6 
2026-02-10 00:00 UT   04 09 07.0   -02 39 21     2.236    2.567   98.0   22.4    75   12.6 
2026-02-11 00:00 UT   04 09 49.4   -02 28 37     2.249    2.568   97.3   22.4    75   12.6 
2026-02-12 00:00 UT   04 10 32.9   -02 17 53     2.262    2.570   96.6   22.4    76   12.6 
2026-02-13 00:00 UT   04 11 17.6   -02 07 10     2.275    2.571   95.9   22.5    76   12.7 

    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.