(37) Fides
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	17 Apr 2025	11.3	2.943 AU	1.940 AU	13h39m	-12°00'	178.4°	0.5°
Today	19 Apr 2025	11.3	2.945 AU	1.942 AU	13h37m	-11°54'	177.5°	0.8°

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 Fides are:

            e (Eccentricity)                : 0.1748496
            a (Semimajor axis)              : 2.6426425
            i (Inclination)                 : 3.06800
            Ω (Longitude of ascending node) : 7.24178
            ω (Argument of perihelion)      : 62.26307
            M (Mean anomaly)                : 127.03433
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 69.47098
            B (Latitude of perihelion)      : 2.71519
            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. 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   13 37 43.7   -11 54 25     1.942    2.945  177.5    0.8    70   11.3 
2025-04-19 04:39 UT   13 37 33.3   -11 53 36     1.942    2.946  177.3    0.9    73   11.3 
2025-04-20 00:00 UT   13 36 50.2   -11 50 10     1.943    2.947  176.5    1.2    83   11.3 
2025-04-21 00:00 UT   13 35 56.9   -11 45 55     1.945    2.948  175.4    1.6    90   11.4 
2025-04-22 00:00 UT   13 35 03.9   -11 41 40     1.947    2.949  174.3    1.9    95   11.4 
2025-04-23 00:00 UT   13 34 11.2   -11 37 25     1.950    2.950  173.1    2.3    97   11.4 
2025-04-24 00:00 UT   13 33 18.9   -11 33 10     1.952    2.952  171.9    2.7    99   11.5 
2025-04-25 00:00 UT   13 32 27.1   -11 28 56     1.955    2.953  170.8    3.1   101   11.5 
2025-04-26 00:00 UT   13 31 35.8   -11 24 43     1.959    2.954  169.6    3.5   102   11.5 
2025-04-27 00:00 UT   13 30 45.0   -11 20 32     1.962    2.955  168.4    3.9   103   11.5 
2025-04-28 00:00 UT   13 29 54.9   -11 16 22     1.966    2.956  167.2    4.3   104   11.6 
2025-04-29 00:00 UT   13 29 05.4   -11 12 15     1.970    2.958  166.1    4.7   105   11.6 
2025-04-30 00:00 UT   13 28 16.6   -11 08 10     1.975    2.959  164.9    5.1   105   11.6 
2025-05-01 00:00 UT   13 27 28.6   -11 04 07     1.980    2.960  163.7    5.5   106   11.7 
2025-05-02 00:00 UT   13 26 41.4   -11 00 08     1.984    2.961  162.5    5.9   106   11.7 
2025-05-03 00:00 UT   13 25 55.0   -10 56 12     1.990    2.962  161.4    6.2   106   11.7 
2025-05-04 00:00 UT   13 25 09.5   -10 52 19     1.995    2.964  160.2    6.6   107   11.7 
2025-05-05 00:00 UT   13 24 24.9   -10 48 30     2.001    2.965  159.0    7.0   107   11.8 
2025-05-06 00:00 UT   13 23 41.3   -10 44 45     2.007    2.966  157.9    7.4   107   11.8 
2025-05-07 00:00 UT   13 22 58.6   -10 41 05     2.013    2.967  156.7    7.7   108   11.8 
2025-05-08 00:00 UT   13 22 17.0   -10 37 29     2.020    2.968  155.6    8.1   108   11.8 
2025-05-09 00:00 UT   13 21 36.4   -10 33 58     2.027    2.970  154.5    8.4   108   11.8 
2025-05-10 00:00 UT   13 20 57.0   -10 30 31     2.034    2.971  153.3    8.8   108   11.9 
2025-05-11 00:00 UT   13 20 18.6   -10 27 10     2.041    2.972  152.2    9.1   108   11.9 
2025-05-12 00:00 UT   13 19 41.3   -10 23 54     2.049    2.973  151.1    9.5   109   11.9 
2025-05-13 00:00 UT   13 19 05.3   -10 20 44     2.056    2.974  149.9    9.8   109   11.9 
2025-05-14 00:00 UT   13 18 30.3   -10 17 39     2.064    2.975  148.8   10.1   109   12.0 
2025-05-15 00:00 UT   13 17 56.6   -10 14 40     2.073    2.976  147.7   10.4   109   12.0 
2025-05-16 00:00 UT   13 17 24.1   -10 11 47     2.081    2.978  146.6   10.8   109   12.0 
2025-05-17 00:00 UT   13 16 52.9   -10 08 60     2.090    2.979  145.5   11.1   109   12.0 
2025-05-18 00:00 UT   13 16 22.8   -10 06 19     2.099    2.980  144.4   11.4   109   12.1 
2025-05-19 00:00 UT   13 15 54.1   -10 03 45     2.108    2.981  143.3   11.7   110   12.1 

    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.