(386) Siegena
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	1 Jun 2026	13.4	2.745 AU	3.550 AU	06h38m	+10°05'	32.1°	11.3°
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) : 166.61220
            ω (Argument of perihelion)      : 221.15379
            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
2026-06-01 00:00 UT   06 38 54.0   +10 05 22     3.550    2.745   32.1   11.3   116   13.4 
2026-06-01 21:03 UT   06 40 21.6   +10 06 43     3.557    2.746   31.7   11.2   116   13.4 
2026-06-02 00:00 UT   06 40 33.9   +10 06 54     3.558    2.747   31.6   11.2   116   13.4 
2026-06-03 00:00 UT   06 42 13.9   +10 08 21     3.566    2.748   31.1   11.0   117   13.4 
2026-06-04 00:00 UT   06 43 53.9   +10 09 41     3.574    2.750   30.6   10.8   117   13.4 
2026-06-05 00:00 UT   06 45 34.0   +10 10 56     3.582    2.752   30.1   10.7   118   13.4 
2026-06-06 00:00 UT   06 47 14.1   +10 12 05     3.590    2.754   29.6   10.5   118   13.4 
2026-06-07 00:00 UT   06 48 54.3   +10 13 08     3.597    2.755   29.1   10.3   119   13.4 
2026-06-08 00:00 UT   06 50 34.6   +10 14 05     3.605    2.757   28.6   10.2   119   13.4 
2026-06-09 00:00 UT   06 52 14.8   +10 14 57     3.612    2.759   28.1   10.0   120   13.4 
2026-06-10 00:00 UT   06 53 55.1   +10 15 43     3.619    2.760   27.6    9.8   121   13.4 
2026-06-11 00:00 UT   06 55 35.5   +10 16 22     3.627    2.762   27.1    9.6   121   13.4 
2026-06-12 00:00 UT   06 57 15.8   +10 16 56     3.634    2.764   26.6    9.5   122   13.4 
2026-06-13 00:00 UT   06 58 56.2   +10 17 25     3.641    2.766   26.1    9.3   123   13.4 
2026-06-14 00:00 UT   07 00 36.6   +10 17 47     3.648    2.767   25.6    9.1   123   13.4 
2026-06-15 00:00 UT   07 02 17.0   +10 18 04     3.655    2.769   25.1    9.0   124   13.4 
2026-06-16 00:00 UT   07 03 57.4   +10 18 16     3.661    2.771   24.7    8.8   125   13.4 
2026-06-17 00:00 UT   07 05 37.8   +10 18 21     3.668    2.772   24.2    8.6   125   13.4 
2026-06-18 00:00 UT   07 07 18.2   +10 18 21     3.674    2.774   23.7    8.5   126   13.4 
2026-06-19 00:00 UT   07 08 58.6   +10 18 16     3.681    2.776   23.2    8.3   127   13.4 
2026-06-20 00:00 UT   07 10 39.0   +10 18 05     3.687    2.778   22.7    8.1   128   13.4 
2026-06-21 00:00 UT   07 12 19.3   +10 17 48     3.693    2.779   22.3    8.0   129   13.4 

    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.