(386) Siegena
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	13 Feb 2026	12.7	2.571 AU	2.275 AU	04h11m	-02°07'	95.9°	22.5°
Opposition	1 Mar 2027	12.1	3.180 AU	2.191 AU	10h46m	+04°32'	176.8°	1.0°

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
2026-02-13 00:00 UT   04 11 17.6   -02 07 10     2.275    2.571   95.9   22.5    76   12.7 
2026-02-13 13:42 UT   04 11 43.6   -02 01 03     2.282    2.572   95.5   22.5    76   12.7 
2026-02-14 00:00 UT   04 12 03.4   -01 56 28     2.288    2.573   95.2   22.5    77   12.7 
2026-02-15 00:00 UT   04 12 50.3   -01 45 47     2.301    2.574   94.5   22.5    77   12.7 
2026-02-16 00:00 UT   04 13 38.4   -01 35 08     2.314    2.576   93.8   22.5    77   12.7 
2026-02-17 00:00 UT   04 14 27.6   -01 24 30     2.327    2.577   93.1   22.5    78   12.7 
2026-02-18 00:00 UT   04 15 17.9   -01 13 54     2.340    2.579   92.4   22.5    78   12.7 
2026-02-19 00:00 UT   04 16 09.2   -01 03 20     2.354    2.580   91.7   22.5    78   12.7 
2026-02-20 00:00 UT   04 17 01.6   +00 52 47     2.367    2.581   91.0   22.5    79   12.8 
2026-02-21 00:00 UT   04 17 55.0   +00 42 18     2.380    2.583   90.3   22.5    79   12.8 
2026-02-22 00:00 UT   04 18 49.5   +00 31 50     2.393    2.584   89.7   22.5    80   12.8 
2026-02-23 00:00 UT   04 19 44.9   +00 21 25     2.407    2.586   89.0   22.5    80   12.8 
2026-02-24 00:00 UT   04 20 41.4   +00 11 02     2.420    2.587   88.3   22.5    80   12.8 
2026-02-25 00:00 UT   04 21 38.8   +00 00 43     2.433    2.589   87.6   22.5    81   12.8 
2026-02-26 00:00 UT   04 22 37.2   +00 09 34     2.447    2.590   87.0   22.4    81   12.8 
2026-02-27 00:00 UT   04 23 36.5   +00 19 48     2.460    2.592   86.3   22.4    81   12.8 
2026-02-28 00:00 UT   04 24 36.8   +00 29 58     2.473    2.593   85.6   22.4    82   12.9 
2026-03-01 00:00 UT   04 25 37.9   +00 40 05     2.487    2.595   85.0   22.4    82   12.9 
2026-03-02 00:00 UT   04 26 39.9   +00 50 09     2.500    2.596   84.3   22.3    82   12.9 
2026-03-03 00:00 UT   04 27 42.8   +01 00 09     2.513    2.598   83.7   22.3    83   12.9 
2026-03-04 00:00 UT   04 28 46.6   +01 10 06     2.527    2.599   83.0   22.2    83   12.9 
2026-03-05 00:00 UT   04 29 51.2   +01 19 59     2.540    2.601   82.3   22.2    83   12.9 
2026-03-06 00:00 UT   04 30 56.6   +01 29 49     2.553    2.602   81.7   22.2    84   12.9 
2026-03-07 00:00 UT   04 32 02.9   +01 39 35     2.567    2.604   81.1   22.1    84   12.9 
2026-03-08 00:00 UT   04 33 10.0   +01 49 16     2.580    2.605   80.4   22.1    85   13.0 
2026-03-09 00:00 UT   04 34 17.8   +01 58 54     2.593    2.607   79.8   22.0    85   13.0 
2026-03-10 00:00 UT   04 35 26.5   +02 08 28     2.607    2.609   79.1   22.0    85   13.0 
2026-03-11 00:00 UT   04 36 35.9   +02 17 58     2.620    2.610   78.5   21.9    86   13.0 
2026-03-12 00:00 UT   04 37 46.1   +02 27 23     2.633    2.612   77.9   21.8    86   13.0 
2026-03-13 00:00 UT   04 38 57.0   +02 36 44     2.647    2.613   77.2   21.8    86   13.0 

    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.