(704) Interamnia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	9 Dec 2025	12.9	3.528 AU	4.133 AU	13h37m	-25°45'	46.5°	11.7°
Opposition	1 May 2026	11.5	3.469 AU	2.509 AU	14h02m	-34°52'	159.0°	6.0°

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 Interamnia are:

            e (Eccentricity)                : 0.1552478
            a (Semimajor axis)              : 3.0562188
            i (Inclination)                 : 17.31546
            Ω (Longitude of ascending node) : 280.16607
            ω (Argument of perihelion)      : 94.10696
            M (Mean anomaly)                : 184.20540
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 194.46728
            B (Latitude of perihelion)      : 17.26960
            P (Orbital period in years)     : 5.34            
        

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
2025-12-09 00:00 UT   13 37 50.8   -25 45 40     4.133    3.528   46.5   11.7   278   12.9 
2025-12-09 17:31 UT   13 38 39.9   -25 51 35     4.125    3.528   47.0   11.8   278   12.9 
2025-12-10 00:00 UT   13 38 58.0   -25 53 46     4.122    3.527   47.2   11.8   278   12.9 
2025-12-11 00:00 UT   13 40 05.0   -26 01 51     4.112    3.527   47.8   11.9   278   12.9 
2025-12-12 00:00 UT   13 41 11.6   -26 09 55     4.101    3.527   48.5   12.1   279   12.9 
2025-12-13 00:00 UT   13 42 18.0   -26 17 58     4.090    3.527   49.2   12.2   279   12.9 
2025-12-14 00:00 UT   13 43 24.0   -26 26 00     4.079    3.527   49.9   12.3   279   12.9 
2025-12-15 00:00 UT   13 44 29.6   -26 34 01     4.068    3.527   50.6   12.5   279   12.9 
2025-12-16 00:00 UT   13 45 34.9   -26 42 01     4.057    3.526   51.3   12.6   279   12.9 
2025-12-17 00:00 UT   13 46 39.9   -26 49 60     4.045    3.526   52.0   12.7   280   12.9 
2025-12-18 00:00 UT   13 47 44.5   -26 57 57     4.034    3.526   52.7   12.8   280   12.9 
2025-12-19 00:00 UT   13 48 48.7   -27 05 54     4.022    3.526   53.4   13.0   280   12.8 
2025-12-20 00:00 UT   13 49 52.5   -27 13 49     4.011    3.526   54.1   13.1   280   12.8 
2025-12-21 00:00 UT   13 50 55.9   -27 21 43     3.999    3.526   54.9   13.2   281   12.8 
2025-12-22 00:00 UT   13 51 58.9   -27 29 36     3.987    3.525   55.6   13.3   281   12.8 
2025-12-23 00:00 UT   13 53 01.5   -27 37 27     3.975    3.525   56.3   13.4   281   12.8 
2025-12-24 00:00 UT   13 54 03.6   -27 45 17     3.963    3.525   57.0   13.5   281   12.8 
2025-12-25 00:00 UT   13 55 05.4   -27 53 05     3.950    3.525   57.7   13.6   281   12.8 
2025-12-26 00:00 UT   13 56 06.6   -28 00 52     3.938    3.525   58.5   13.8   282   12.8 
2025-12-27 00:00 UT   13 57 07.4   -28 08 38     3.926    3.524   59.2   13.9   282   12.8 
2025-12-28 00:00 UT   13 58 07.7   -28 16 22     3.913    3.524   59.9   14.0   282   12.8 
2025-12-29 00:00 UT   13 59 07.6   -28 24 05     3.900    3.524   60.6   14.1   282   12.8 
2025-12-30 00:00 UT   14 00 07.0   -28 31 46     3.888    3.524   61.4   14.2   282   12.8 
2025-12-31 00:00 UT   14 01 05.8   -28 39 25     3.875    3.523   62.1   14.3   283   12.8 
2026-01-01 00:00 UT   14 02 04.2   -28 47 03     3.862    3.523   62.8   14.4   283   12.8 
2026-01-02 00:00 UT   14 03 02.0   -28 54 40     3.849    3.523   63.6   14.5   283   12.8 
2026-01-03 00:00 UT   14 03 59.3   -29 02 14     3.836    3.523   64.3   14.6   283   12.8 
2026-01-04 00:00 UT   14 04 56.1   -29 09 47     3.822    3.522   65.1   14.7   283   12.8 
2026-01-05 00:00 UT   14 05 52.3   -29 17 19     3.809    3.522   65.8   14.8   283   12.8 
2026-01-06 00:00 UT   14 06 47.9   -29 24 48     3.796    3.522   66.6   14.8   284   12.8 
2026-01-07 00:00 UT   14 07 43.0   -29 32 16     3.782    3.522   67.3   14.9   284   12.8 
2026-01-08 00:00 UT   14 08 37.5   -29 39 42     3.769    3.521   68.1   15.0   284   12.8 

    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.