(345) Tercidina
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	19 Oct 2026	13.7	2.390 AU	2.127 AU	19h51m	-10°28'	92.7°	24.6°
Opposition	19 Dec 2027	11.6	2.184 AU	1.217 AU	05h52m	+08°57'	165.5°	6.5°

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 Tercidina are:

            e (Eccentricity)                : 0.0611443
            a (Semimajor axis)              : 2.3255766
            i (Inclination)                 : 9.74273
            Ω (Longitude of ascending node) : 212.56979
            ω (Argument of perihelion)      : 230.31365
            M (Mean anomaly)                : 209.27030
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 262.47386
            B (Latitude of perihelion)      : -7.48271
            P (Orbital period in years)     : 3.55            
        

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
2026-10-19 00:00 UT   19 51 58.0   -10 28 16     2.127    2.390   92.7   24.6    80   13.7 
2026-10-19 18:03 UT   19 52 45.6   -10 29 35     2.136    2.390   92.1   24.6    79   13.7 
2026-10-20 00:00 UT   19 53 01.4   -10 29 60     2.139    2.390   91.9   24.6    79   13.7 
2026-10-21 00:00 UT   19 54 05.9   -10 31 37     2.151    2.389   91.2   24.6    79   13.7 
2026-10-22 00:00 UT   19 55 11.4   -10 33 06     2.163    2.389   90.5   24.6    79   13.7 
2026-10-23 00:00 UT   19 56 17.9   -10 34 30     2.175    2.388   89.8   24.6    79   13.7 
2026-10-24 00:00 UT   19 57 25.5   -10 35 46     2.186    2.387   89.1   24.6    78   13.8 
2026-10-25 00:00 UT   19 58 34.1   -10 36 55     2.198    2.387   88.4   24.6    78   13.8 
2026-10-26 00:00 UT   19 59 43.6   -10 37 57     2.210    2.386   87.7   24.6    78   13.8 
2026-10-27 00:00 UT   20 00 54.1   -10 38 52     2.222    2.386   87.0   24.6    78   13.8 
2026-10-28 00:00 UT   20 02 05.6   -10 39 41     2.234    2.385   86.3   24.6    78   13.8 
2026-10-29 00:00 UT   20 03 18.0   -10 40 22     2.246    2.384   85.6   24.5    77   13.8 
2026-10-30 00:00 UT   20 04 31.3   -10 40 56     2.258    2.384   84.9   24.5    77   13.8 
2026-10-31 00:00 UT   20 05 45.5   -10 41 24     2.270    2.383   84.2   24.5    77   13.8 
2026-11-01 00:00 UT   20 07 00.5   -10 41 44     2.282    2.383   83.5   24.5    77   13.8 
2026-11-02 00:00 UT   20 08 16.5   -10 41 57     2.293    2.382   82.8   24.4    76   13.9 
2026-11-03 00:00 UT   20 09 33.3   -10 42 04     2.305    2.381   82.1   24.4    76   13.9 
2026-11-04 00:00 UT   20 10 50.9   -10 42 03     2.317    2.381   81.4   24.3    76   13.9 
2026-11-05 00:00 UT   20 12 09.4   -10 41 55     2.329    2.380   80.8   24.3    76   13.9 
2026-11-06 00:00 UT   20 13 28.7   -10 41 40     2.341    2.379   80.1   24.2    76   13.9 
2026-11-07 00:00 UT   20 14 48.8   -10 41 18     2.352    2.379   79.4   24.2    75   13.9 
2026-11-08 00:00 UT   20 16 09.6   -10 40 49     2.364    2.378   78.7   24.1    75   13.9 
2026-11-09 00:00 UT   20 17 31.3   -10 40 12     2.376    2.378   78.1   24.1    75   13.9 
2026-11-10 00:00 UT   20 18 53.6   -10 39 29     2.387    2.377   77.4   24.0    75   13.9 
2026-11-11 00:00 UT   20 20 16.8   -10 38 38     2.399    2.376   76.8   23.9    75   13.9 
2026-11-12 00:00 UT   20 21 40.6   -10 37 40     2.411    2.376   76.1   23.9    74   13.9 
2026-11-13 00:00 UT   20 23 05.2   -10 36 35     2.422    2.375   75.4   23.8    74   13.9 
2026-11-14 00:00 UT   20 24 30.4   -10 35 23     2.434    2.374   74.8   23.7    74   14.0 
2026-11-15 00:00 UT   20 25 56.3   -10 34 04     2.445    2.374   74.1   23.6    74   14.0 

    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.