(37) Fides
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	17 Dec 2025	13.2	3.105 AU	4.058 AU	16h43m	-24°20'	12.5°	3.9°
Opposition	3 Jul 2026	11.4	3.006 AU	1.992 AU	18h55m	-27°28'	175.3°	1.6°

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 Fides are:

            e (Eccentricity)                : 0.1747142
            a (Semimajor axis)              : 2.6430384
            i (Inclination)                 : 3.06763
            Ω (Longitude of ascending node) : 7.23568
            ω (Argument of perihelion)      : 62.30602
            M (Mean anomaly)                : 172.87172
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 69.50788
            B (Latitude of perihelion)      : 2.71593
            P (Orbital period in years)     : 4.30            
        

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
2025-12-17 00:00 UT   16 43 15.8   -24 20 47     4.058    3.105   12.5    3.9   268   13.2 
2025-12-17 05:00 UT   16 43 35.7   -24 21 27     4.057    3.105   12.7    4.0   268   13.2 
2025-12-18 00:00 UT   16 44 51.1   -24 23 55     4.055    3.105   13.2    4.1   268   13.2 
2025-12-19 00:00 UT   16 46 26.5   -24 26 60     4.051    3.105   13.8    4.3   269   13.2 
2025-12-20 00:00 UT   16 48 01.8   -24 30 01     4.048    3.105   14.5    4.5   269   13.2 
2025-12-21 00:00 UT   16 49 37.1   -24 32 59     4.044    3.105   15.1    4.7   269   13.2 
2025-12-22 00:00 UT   16 51 12.3   -24 35 53     4.040    3.105   15.8    4.9   269   13.2 
2025-12-23 00:00 UT   16 52 47.5   -24 38 44     4.036    3.105   16.4    5.1   269   13.3 
2025-12-24 00:00 UT   16 54 22.7   -24 41 32     4.032    3.105   17.1    5.3   270   13.3 
2025-12-25 00:00 UT   16 55 57.8   -24 44 16     4.027    3.105   17.7    5.5   270   13.3 
2025-12-26 00:00 UT   16 57 32.8   -24 46 57     4.023    3.105   18.4    5.7   270   13.3 
2025-12-27 00:00 UT   16 59 07.8   -24 49 35     4.018    3.105   19.0    5.9   270   13.3 
2025-12-28 00:00 UT   17 00 42.7   -24 52 09     4.013    3.105   19.7    6.1   270   13.3 
2025-12-29 00:00 UT   17 02 17.5   -24 54 40     4.008    3.105   20.3    6.3   270   13.3 
2025-12-30 00:00 UT   17 03 52.2   -24 57 08     4.003    3.105   21.0    6.5   270   13.3 
2025-12-31 00:00 UT   17 05 26.8   -24 59 32     3.997    3.105   21.6    6.7   270   13.3 
2026-01-01 00:00 UT   17 07 01.4   -25 01 53     3.992    3.105   22.3    6.9   270   13.3 
2026-01-02 00:00 UT   17 08 35.8   -25 04 10     3.986    3.104   23.0    7.1   270   13.3 
2026-01-03 00:00 UT   17 10 10.1   -25 06 24     3.980    3.104   23.6    7.3   270   13.3 
2026-01-04 00:00 UT   17 11 44.3   -25 08 35     3.974    3.104   24.3    7.5   270   13.3 
2026-01-05 00:00 UT   17 13 18.4   -25 10 43     3.968    3.104   24.9    7.7   270   13.3 
2026-01-06 00:00 UT   17 14 52.4   -25 12 47     3.962    3.104   25.6    7.9   270   13.3 
2026-01-07 00:00 UT   17 16 26.2   -25 14 48     3.955    3.104   26.3    8.1   270   13.4 
2026-01-08 00:00 UT   17 17 59.9   -25 16 46     3.949    3.104   26.9    8.2   270   13.4 
2026-01-09 00:00 UT   17 19 33.4   -25 18 40     3.942    3.104   27.6    8.4   270   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.