(345) Tercidina
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	29 May 2026	13.3	2.455 AU	1.794 AU	20h25m	-06°02'	119.3°	21.1°
Opposition	22 Jul 2026	12.3	2.436 AU	1.445 AU	19h55m	-03°54'	163.4°	6.8°

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)                : 0.0612615
            a (Semimajor axis)              : 2.3253262
            i (Inclination)                 : 9.74347
            Ω (Longitude of ascending node) : 212.57571
            ω (Argument of perihelion)      : 230.24470
            M (Mean anomaly)                : 153.75500
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 262.41059
            B (Latitude of perihelion)      : -7.47575
            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
2026-05-29 00:00 UT   20 25 23.9   -06 02 18     1.794    2.455  119.3   21.1   249   13.3 
2026-05-29 20:56 UT   20 25 29.6   -05 56 52     1.785    2.454  120.0   20.9   248   13.3 
2026-05-30 00:00 UT   20 25 30.3   -05 56 05     1.784    2.454  120.1   20.9   248   13.3 
2026-05-31 00:00 UT   20 25 35.1   -05 49 57     1.773    2.454  121.0   20.7   248   13.3 
2026-06-01 00:00 UT   20 25 38.3   -05 43 55     1.762    2.454  121.9   20.5   248   13.2 
2026-06-02 00:00 UT   20 25 39.8   -05 37 58     1.752    2.454  122.8   20.3   247   13.2 
2026-06-03 00:00 UT   20 25 39.8   -05 32 07     1.741    2.453  123.6   20.1   247   13.2 
2026-06-04 00:00 UT   20 25 38.1   -05 26 23     1.731    2.453  124.5   19.9   247   13.2 
2026-06-05 00:00 UT   20 25 34.8   -05 20 45     1.721    2.453  125.4   19.7   246   13.2 
2026-06-06 00:00 UT   20 25 29.8   -05 15 13     1.711    2.452  126.3   19.5   246   13.1 
2026-06-07 00:00 UT   20 25 23.2   -05 09 49     1.701    2.452  127.2   19.2   245   13.1 
2026-06-08 00:00 UT   20 25 14.9   -05 04 31     1.691    2.452  128.1   19.0   245   13.1 
2026-06-09 00:00 UT   20 25 05.0   -04 59 21     1.682    2.451  129.0   18.8   244   13.1 
2026-06-10 00:00 UT   20 24 53.4   -04 54 18     1.672    2.451  130.0   18.5   244   13.1 
2026-06-11 00:00 UT   20 24 40.2   -04 49 23     1.663    2.451  130.9   18.3   243   13.0 
2026-06-12 00:00 UT   20 24 25.2   -04 44 36     1.654    2.451  131.8   18.0   243   13.0 
2026-06-13 00:00 UT   20 24 08.6   -04 39 57     1.645    2.450  132.7   17.7   242   13.0 
2026-06-14 00:00 UT   20 23 50.4   -04 35 26     1.636    2.450  133.7   17.5   242   13.0 
2026-06-15 00:00 UT   20 23 30.5   -04 31 04     1.627    2.450  134.6   17.2   241   13.0 
2026-06-16 00:00 UT   20 23 09.0   -04 26 51     1.619    2.449  135.5   16.9   241   12.9 
2026-06-17 00:00 UT   20 22 45.8   -04 22 47     1.610    2.449  136.5   16.6   240   12.9 
2026-06-18 00:00 UT   20 22 21.1   -04 18 52     1.602    2.449  137.4   16.3   240   12.9 
2026-06-19 00:00 UT   20 21 54.7   -04 15 07     1.594    2.448  138.4   16.0   239   12.9 
2026-06-20 00:00 UT   20 21 26.8   -04 11 31     1.586    2.448  139.3   15.7   238   12.8 
2026-06-21 00:00 UT   20 20 57.3   -04 08 05     1.578    2.448  140.3   15.4   238   12.8 
2026-06-22 00:00 UT   20 20 26.3   -04 04 48     1.571    2.447  141.2   15.1   237   12.8 
2026-06-23 00:00 UT   20 19 53.8   -04 01 42     1.564    2.447  142.2   14.8   236   12.8 
2026-06-24 00:00 UT   20 19 19.8   -03 58 47     1.556    2.447  143.1   14.4   235   12.8 
2026-06-25 00:00 UT   20 18 44.4   -03 56 01     1.549    2.446  144.1   14.1   234   12.7 
2026-06-26 00:00 UT   20 18 07.5   -03 53 26     1.543    2.446  145.0   13.8   233   12.7 
2026-06-27 00:00 UT   20 17 29.2   -03 51 02     1.536    2.446  146.0   13.5   232   12.7 
2026-06-28 00:00 UT   20 16 49.5   -03 48 49     1.530    2.445  146.9   13.1   231   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.