(345) Tercidina
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	22 Apr 2026	13.9	2.463 AU	2.241 AU	20h04m	-10°28'	90.4°	24.1°
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
2026-04-22 00:00 UT   20 04 40.8   -10 28 48     2.241    2.463   90.4   24.1   258   13.9 
2026-04-22 18:07 UT   20 05 23.3   -10 23 06     2.231    2.463   91.0   24.1   258   13.9 
2026-04-23 00:00 UT   20 05 37.0   -10 21 15     2.228    2.463   91.1   24.1   258   13.9 
2026-04-24 00:00 UT   20 06 32.0   -10 13 41     2.216    2.463   91.9   24.1   257   13.9 
2026-04-25 00:00 UT   20 07 26.0   -10 06 07     2.203    2.462   92.6   24.1   257   13.8 
2026-04-26 00:00 UT   20 08 18.8   -09 58 32     2.190    2.462   93.3   24.1   257   13.8 
2026-04-27 00:00 UT   20 09 10.5   -09 50 58     2.178    2.462   94.0   24.1   257   13.8 
2026-04-28 00:00 UT   20 10 01.1   -09 43 24     2.165    2.462   94.7   24.0   257   13.8 
2026-04-29 00:00 UT   20 10 50.5   -09 35 50     2.152    2.462   95.5   24.0   256   13.8 
2026-04-30 00:00 UT   20 11 38.8   -09 28 17     2.140    2.461   96.2   24.0   256   13.8 
2026-05-01 00:00 UT   20 12 25.9   -09 20 44     2.127    2.461   96.9   24.0   256   13.8 
2026-05-02 00:00 UT   20 13 11.9   -09 13 11     2.115    2.461   97.7   23.9   256   13.7 
2026-05-03 00:00 UT   20 13 56.6   -09 05 39     2.102    2.461   98.4   23.9   256   13.7 
2026-05-04 00:00 UT   20 14 40.1   -08 58 08     2.090    2.461   99.2   23.9   255   13.7 
2026-05-05 00:00 UT   20 15 22.3   -08 50 38     2.077    2.460   99.9   23.8   255   13.7 
2026-05-06 00:00 UT   20 16 03.3   -08 43 09     2.065    2.460  100.7   23.8   255   13.7 
2026-05-07 00:00 UT   20 16 43.1   -08 35 42     2.052    2.460  101.4   23.7   255   13.7 
2026-05-08 00:00 UT   20 17 21.5   -08 28 15     2.040    2.460  102.2   23.6   254   13.7 
2026-05-09 00:00 UT   20 17 58.7   -08 20 51     2.028    2.460  103.0   23.6   254   13.6 
2026-05-10 00:00 UT   20 18 34.5   -08 13 28     2.015    2.459  103.7   23.5   254   13.6 
2026-05-11 00:00 UT   20 19 09.0   -08 06 06     2.003    2.459  104.5   23.4   254   13.6 
2026-05-12 00:00 UT   20 19 42.1   -07 58 47     1.991    2.459  105.3   23.3   253   13.6 
2026-05-13 00:00 UT   20 20 13.9   -07 51 30     1.979    2.459  106.1   23.3   253   13.6 
2026-05-14 00:00 UT   20 20 44.3   -07 44 15     1.967    2.458  106.9   23.2   253   13.6 
2026-05-15 00:00 UT   20 21 13.3   -07 37 03     1.955    2.458  107.7   23.1   253   13.5 
2026-05-16 00:00 UT   20 21 40.8   -07 29 54     1.943    2.458  108.5   23.0   252   13.5 
2026-05-17 00:00 UT   20 22 06.9   -07 22 47     1.931    2.458  109.3   22.9   252   13.5 
2026-05-18 00:00 UT   20 22 31.6   -07 15 44     1.919    2.457  110.1   22.7   252   13.5 
2026-05-19 00:00 UT   20 22 54.8   -07 08 44     1.907    2.457  110.9   22.6   252   13.5 
2026-05-20 00:00 UT   20 23 16.5   -07 01 47     1.896    2.457  111.7   22.5   251   13.5 
2026-05-21 00:00 UT   20 23 36.8   -06 54 54     1.884    2.457  112.5   22.4   251   13.4 
2026-05-22 00:00 UT   20 23 55.5   -06 48 04     1.873    2.456  113.4   22.2   251   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.