(345) Tercidina
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	14 Mar 2025	11.9	2.319 AU	1.334 AU	11h22m	-07°30'	169.3°	4.5°
Today	19 Apr 2025	12.7	2.343 AU	1.499 AU	11h01m	-01°46'	137.9°	16.7°

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)                : 0.0613536
            a (Semimajor axis)              : 2.3250137
            i (Inclination)                 : 9.74417
            Ω (Longitude of ascending node) : 212.57641
            ω (Argument of perihelion)      : 230.14242
            M (Mean anomaly)                : 98.25955
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 262.30870
            B (Latitude of perihelion)      : -7.46511
            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. A more printer-friendly version of the same chart can be found below.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-04-19 00:00 UT   11 01 37.5   -01 46 33     1.499    2.343  137.9   16.7   105   12.7 
2025-04-19 20:36 UT   11 01 30.6   -01 40 02     1.507    2.344  137.0   17.0   105   12.7 
2025-04-20 00:00 UT   11 01 29.6   -01 38 59     1.508    2.344  136.9   17.0   105   12.7 
2025-04-21 00:00 UT   11 01 23.4   -01 31 36     1.517    2.344  135.8   17.4   105   12.7 
2025-04-22 00:00 UT   11 01 19.0   -01 24 25     1.526    2.345  134.8   17.7   106   12.8 
2025-04-23 00:00 UT   11 01 16.2   -01 17 26     1.535    2.346  133.8   18.0   106   12.8 
2025-04-24 00:00 UT   11 01 15.1   -01 10 40     1.544    2.347  132.8   18.3   106   12.8 
2025-04-25 00:00 UT   11 01 15.7   -01 04 05     1.553    2.347  131.8   18.6   107   12.8 
2025-04-26 00:00 UT   11 01 18.0   +00 57 43     1.563    2.348  130.9   18.9   107   12.9 
2025-04-27 00:00 UT   11 01 22.0   +00 51 33     1.573    2.349  129.9   19.2   107   12.9 
2025-04-28 00:00 UT   11 01 27.7   +00 45 36     1.582    2.349  128.9   19.5   108   12.9 
2025-04-29 00:00 UT   11 01 35.0   +00 39 52     1.592    2.350  127.9   19.8   108   12.9 
2025-04-30 00:00 UT   11 01 43.9   +00 34 20     1.603    2.351  127.0   20.0   108   12.9 
2025-05-01 00:00 UT   11 01 54.6   +00 29 02     1.613    2.351  126.0   20.3   108   13.0 
2025-05-02 00:00 UT   11 02 06.8   +00 23 56     1.623    2.352  125.1   20.5   108   13.0 
2025-05-03 00:00 UT   11 02 20.6   +00 19 02     1.634    2.353  124.2   20.8   109   13.0 
2025-05-04 00:00 UT   11 02 36.1   +00 14 22     1.644    2.353  123.2   21.0   109   13.0 
2025-05-05 00:00 UT   11 02 53.1   +00 09 54     1.655    2.354  122.3   21.2   109   13.1 
2025-05-06 00:00 UT   11 03 11.6   +00 05 40     1.666    2.355  121.4   21.4   109   13.1 
2025-05-07 00:00 UT   11 03 31.7   +00 01 37     1.677    2.355  120.5   21.7   109   13.1 
2025-05-08 00:00 UT   11 03 53.3   +00 02 12     1.688    2.356  119.6   21.9   110   13.1 
2025-05-09 00:00 UT   11 04 16.4   +00 05 49     1.699    2.357  118.7   22.1   110   13.1 
2025-05-10 00:00 UT   11 04 41.0   +00 09 14     1.710    2.357  117.8   22.3   110   13.2 
2025-05-11 00:00 UT   11 05 07.0   +00 12 26     1.722    2.358  117.0   22.4   110   13.2 
2025-05-12 00:00 UT   11 05 34.4   +00 15 27     1.733    2.359  116.1   22.6   110   13.2 
2025-05-13 00:00 UT   11 06 03.2   +00 18 14     1.745    2.359  115.2   22.8   110   13.2 
2025-05-14 00:00 UT   11 06 33.5   +00 20 50     1.756    2.360  114.4   23.0   111   13.2 
2025-05-15 00:00 UT   11 07 05.1   +00 23 14     1.768    2.361  113.5   23.1   111   13.3 
2025-05-16 00:00 UT   11 07 38.0   +00 25 26     1.780    2.361  112.7   23.3   111   13.3 
2025-05-17 00:00 UT   11 08 12.2   +00 27 26     1.791    2.362  111.8   23.4   111   13.3 
2025-05-18 00:00 UT   11 08 47.8   +00 29 15     1.803    2.363  111.0   23.6   111   13.3 
2025-05-19 00:00 UT   11 09 24.6   +00 30 52     1.815    2.363  110.2   23.7   111   13.3 

    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.