(129) Antigone
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	11 Oct 2026	12.1	3.344 AU	2.434 AU	02h55m	-00°39'	151.2°	8.3°
Opposition	30 Oct 2026	12.0	3.365 AU	2.404 AU	02h41m	-02°19'	162.9°	5.0°

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 Antigone are:

            e (Eccentricity)                : 0.2131575
            a (Semimajor axis)              : 2.8677886
            i (Inclination)                 : 12.27021
            Ω (Longitude of ascending node) : 135.65523
            ω (Argument of perihelion)      : 110.47772
            M (Mean anomaly)                : 108.26566
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 66.57068
            B (Latitude of perihelion)      : 11.48391
            P (Orbital period in years)     : 4.86            
        

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
2026-10-11 00:00 UT   02 55 34.5   +00 39 26     2.434    3.344  151.2    8.3   285   12.1 
2026-10-11 09:01 UT   02 55 20.3   +00 41 35     2.432    3.344  151.5    8.2   286   12.1 
2026-10-12 00:00 UT   02 54 56.5   +00 45 10     2.430    3.345  152.1    8.0   287   12.1 
2026-10-13 00:00 UT   02 54 17.6   +00 50 51     2.426    3.346  153.0    7.8   289   12.1 
2026-10-14 00:00 UT   02 53 37.9   +00 56 30     2.422    3.347  153.9    7.5   290   12.1 
2026-10-15 00:00 UT   02 52 57.4   -01 02 06     2.419    3.348  154.7    7.3   292   12.1 
2026-10-16 00:00 UT   02 52 16.1   -01 07 39     2.416    3.349  155.6    7.1   294   12.1 
2026-10-17 00:00 UT   02 51 34.1   -01 13 08     2.413    3.350  156.4    6.8   296   12.1 
2026-10-18 00:00 UT   02 50 51.5   -01 18 33     2.411    3.352  157.2    6.6   298   12.0 
2026-10-19 00:00 UT   02 50 08.2   -01 23 55     2.409    3.353  157.9    6.4   301   12.0 
2026-10-20 00:00 UT   02 49 24.3   -01 29 12     2.407    3.354  158.6    6.2   303   12.0 
2026-10-21 00:00 UT   02 48 39.8   -01 34 24     2.405    3.355  159.3    6.0   306   12.0 
2026-10-22 00:00 UT   02 47 54.8   -01 39 32     2.404    3.356  160.0    5.8   309   12.0 
2026-10-23 00:00 UT   02 47 09.3   -01 44 34     2.403    3.357  160.5    5.7   312   12.0 
2026-10-24 00:00 UT   02 46 23.3   -01 49 31     2.402    3.358  161.1    5.5   315   12.0 
2026-10-25 00:00 UT   02 45 37.0   -01 54 23     2.401    3.359  161.5    5.4   319   12.0 
2026-10-26 00:00 UT   02 44 50.3   -01 59 08     2.401    3.360  162.0    5.3   322   12.0 
2026-10-27 00:00 UT   02 44 03.2   -02 03 48     2.401    3.362  162.3    5.2   326   12.0 
2026-10-28 00:00 UT   02 43 15.9   -02 08 20     2.401    3.363  162.6    5.1   330   12.0 
2026-10-29 00:00 UT   02 42 28.4   -02 12 47     2.402    3.364  162.7    5.0   334   12.0 
2026-10-30 00:00 UT   02 41 40.6   -02 17 06     2.403    3.365  162.9    5.0   338   12.0 
2026-10-31 00:00 UT   02 40 52.7   -02 21 18     2.404    3.366  162.9    5.0   342   12.0 
2026-11-01 00:00 UT   02 40 04.7   -02 25 23     2.406    3.367  162.8    5.0   346   12.0 
2026-11-02 00:00 UT   02 39 16.6   -02 29 21     2.408    3.368  162.7    5.0   350   12.0 
2026-11-03 00:00 UT   02 38 28.6   -02 33 10     2.410    3.369  162.5    5.1   354   12.0 
2026-11-04 00:00 UT   02 37 40.5   -02 36 52     2.412    3.370  162.2    5.2   358   12.0 
2026-11-05 00:00 UT   02 36 52.5   -02 40 25     2.415    3.371  161.8    5.3     2   12.0 
2026-11-06 00:00 UT   02 36 04.6   -02 43 50     2.418    3.372  161.4    5.4     5   12.0 
2026-11-07 00:00 UT   02 35 16.9   -02 47 07     2.421    3.373  160.9    5.5     9   12.0 
2026-11-08 00:00 UT   02 34 29.4   -02 50 14     2.425    3.374  160.3    5.7    12   12.0 
2026-11-09 00:00 UT   02 33 42.1   -02 53 13     2.428    3.375  159.7    5.8    15   12.0 
2026-11-10 00:00 UT   02 32 55.1   -02 56 02     2.433    3.376  159.1    6.0    18   12.1 

    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.