(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	9 May 2025	13.1	2.357 AU	1.699 AU	11h04m	+00°05'	118.7°	22.1°

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
2025-05-09 00:00 UT   11 04 16.4   +00 05 49     1.699    2.357  118.7   22.1   110   13.1 
2025-05-09 07:09 UT   11 04 23.6   +00 06 52     1.702    2.357  118.5   22.1   110   13.2 
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 
2025-05-20 00:00 UT   11 10 02.7   +00 32 18     1.827    2.364  109.4   23.8   111   13.4 
2025-05-21 00:00 UT   11 10 42.1   +00 33 32     1.839    2.365  108.5   23.9   111   13.4 
2025-05-22 00:00 UT   11 11 22.6   +00 34 35     1.852    2.365  107.7   24.1   112   13.4 
2025-05-23 00:00 UT   11 12 04.4   +00 35 27     1.864    2.366  106.9   24.2   112   13.4 
2025-05-24 00:00 UT   11 12 47.4   +00 36 08     1.876    2.366  106.1   24.3   112   13.4 
2025-05-25 00:00 UT   11 13 31.5   +00 36 37     1.888    2.367  105.3   24.4   112   13.5 
2025-05-26 00:00 UT   11 14 16.8   +00 36 56     1.901    2.368  104.6   24.5   112   13.5 
2025-05-27 00:00 UT   11 15 03.3   +00 37 05     1.913    2.368  103.8   24.5   112   13.5 
2025-05-28 00:00 UT   11 15 50.8   +00 37 02     1.926    2.369  103.0   24.6   112   13.5 
2025-05-29 00:00 UT   11 16 39.5   +00 36 50     1.938    2.370  102.2   24.7   112   13.5 
2025-05-30 00:00 UT   11 17 29.2   +00 36 26     1.951    2.370  101.5   24.8   112   13.5 
2025-05-31 00:00 UT   11 18 20.0   +00 35 53     1.963    2.371  100.7   24.8   112   13.6 
2025-06-01 00:00 UT   11 19 11.9   +00 35 10     1.976    2.372  100.0   24.9   112   13.6 
2025-06-02 00:00 UT   11 20 04.7   +00 34 16     1.988    2.372   99.2   25.0   113   13.6 
2025-06-03 00:00 UT   11 20 58.6   +00 33 13     2.001    2.373   98.5   25.0   113   13.6 
2025-06-04 00:00 UT   11 21 53.4   +00 32 01     2.014    2.374   97.7   25.1   113   13.6 
2025-06-05 00:00 UT   11 22 49.2   +00 30 39     2.027    2.374   97.0   25.1   113   13.6 
2025-06-06 00:00 UT   11 23 45.9   +00 29 07     2.039    2.375   96.3   25.1   113   13.7 
2025-06-07 00:00 UT   11 24 43.6   +00 27 27     2.052    2.375   95.5   25.2   113   13.7 
2025-06-08 00:00 UT   11 25 42.1   +00 25 37     2.065    2.376   94.8   25.2   113   13.7 

    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.