(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	4 Jun 2025	12.4	2.998 AU	2.279 AU	13h11m	-09°38'	126.8°	15.7°

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 Fides are:

            e (Eccentricity)                : 0.1748496
            a (Semimajor axis)              : 2.6426425
            i (Inclination)                 : 3.06800
            Ω (Longitude of ascending node) : 7.24177
            ω (Argument of perihelion)      : 62.26308
            M (Mean anomaly)                : 127.03434
            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
2025-06-04 00:00 UT   13 11 14.4   -09 38 35     2.279    2.998  126.8   15.7   111   12.4 
2025-06-04 17:38 UT   13 11 09.9   -09 38 12     2.288    2.999  126.0   15.9   111   12.4 
2025-06-05 00:00 UT   13 11 08.4   -09 38 04     2.291    2.999  125.8   15.9   111   12.4 
2025-06-06 00:00 UT   13 11 03.8   -09 37 40     2.303    3.000  124.8   16.1   111   12.4 
2025-06-07 00:00 UT   13 11 00.4   -09 37 24     2.315    3.001  123.8   16.3   111   12.5 
2025-06-08 00:00 UT   13 10 58.4   -09 37 15     2.328    3.002  122.9   16.5   111   12.5 
2025-06-09 00:00 UT   13 10 57.7   -09 37 13     2.340    3.003  121.9   16.7   111   12.5 
2025-06-10 00:00 UT   13 10 58.3   -09 37 19     2.353    3.004  121.0   16.8   111   12.5 
2025-06-11 00:00 UT   13 11 00.2   -09 37 32     2.366    3.005  120.0   17.0   111   12.5 
2025-06-12 00:00 UT   13 11 03.3   -09 37 53     2.379    3.006  119.1   17.2   111   12.5 
2025-06-13 00:00 UT   13 11 07.7   -09 38 20     2.392    3.007  118.1   17.3   111   12.6 
2025-06-14 00:00 UT   13 11 13.4   -09 38 55     2.405    3.008  117.2   17.5   111   12.6 
2025-06-15 00:00 UT   13 11 20.4   -09 39 37     2.418    3.009  116.3   17.6   111   12.6 
2025-06-16 00:00 UT   13 11 28.5   -09 40 26     2.432    3.010  115.4   17.8   111   12.6 
2025-06-17 00:00 UT   13 11 37.9   -09 41 22     2.445    3.011  114.5   17.9   111   12.6 
2025-06-18 00:00 UT   13 11 48.6   -09 42 25     2.459    3.012  113.6   18.0   111   12.7 
2025-06-19 00:00 UT   13 12 00.4   -09 43 35     2.472    3.013  112.7   18.1   111   12.7 
2025-06-20 00:00 UT   13 12 13.4   -09 44 52     2.486    3.014  111.8   18.2   111   12.7 
2025-06-21 00:00 UT   13 12 27.6   -09 46 16     2.500    3.015  110.9   18.4   111   12.7 
2025-06-22 00:00 UT   13 12 43.0   -09 47 47     2.514    3.016  110.0   18.5   112   12.7 
2025-06-23 00:00 UT   13 12 59.6   -09 49 24     2.528    3.017  109.1   18.6   112   12.7 
2025-06-24 00:00 UT   13 13 17.3   -09 51 08     2.542    3.018  108.2   18.7   112   12.8 
2025-06-25 00:00 UT   13 13 36.1   -09 52 59     2.556    3.019  107.4   18.7   112   12.8 
2025-06-26 00:00 UT   13 13 56.1   -09 54 56     2.570    3.020  106.5   18.8   112   12.8 
2025-06-27 00:00 UT   13 14 17.2   -09 56 59     2.584    3.021  105.6   18.9   112   12.8 
2025-06-28 00:00 UT   13 14 39.5   -09 59 09     2.598    3.022  104.8   19.0   112   12.8 
2025-06-29 00:00 UT   13 15 02.8   -10 01 25     2.613    3.023  103.9   19.1   112   12.8 
2025-06-30 00:00 UT   13 15 27.2   -10 03 48     2.627    3.024  103.1   19.1   112   12.8 
2025-07-01 00:00 UT   13 15 52.6   -10 06 17     2.641    3.025  102.2   19.2   112   12.9 
2025-07-02 00:00 UT   13 16 19.1   -10 08 51     2.656    3.025  101.4   19.2   112   12.9 
2025-07-03 00:00 UT   13 16 46.7   -10 11 32     2.670    3.026  100.6   19.3   112   12.9 
2025-07-04 00:00 UT   13 17 15.2   -10 14 18     2.685    3.027   99.7   19.3   112   12.9 

    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.