(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	9 May 2025	11.8	2.970 AU	2.027 AU	13h21m	-10°33'	154.5°	8.4°

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
2025-05-09 00:00 UT   13 21 36.4   -10 33 58     2.027    2.970  154.5    8.4   108   11.8 
2025-05-09 15:17 UT   13 21 11.2   -10 31 46     2.031    2.970  153.7    8.7   108   11.9 
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 
2025-05-20 00:00 UT   13 15 26.6   -10 01 18     2.117    2.982  142.3   12.0   110   12.1 
2025-05-21 00:00 UT   13 15 00.4   -09 58 57     2.126    2.983  141.2   12.3   110   12.1 
2025-05-22 00:00 UT   13 14 35.5   -09 56 42     2.136    2.984  140.1   12.6   110   12.1 
2025-05-23 00:00 UT   13 14 12.0   -09 54 35     2.146    2.985  139.1   12.8   110   12.2 
2025-05-24 00:00 UT   13 13 49.8   -09 52 35     2.156    2.986  138.0   13.1   110   12.2 
2025-05-25 00:00 UT   13 13 28.9   -09 50 41     2.166    2.988  136.9   13.4   110   12.2 
2025-05-26 00:00 UT   13 13 09.3   -09 48 56     2.177    2.989  135.9   13.6   110   12.2 
2025-05-27 00:00 UT   13 12 51.1   -09 47 17     2.188    2.990  134.9   13.9   110   12.2 
2025-05-28 00:00 UT   13 12 34.3   -09 45 45     2.198    2.991  133.8   14.1   110   12.3 
2025-05-29 00:00 UT   13 12 18.8   -09 44 21     2.209    2.992  132.8   14.4   110   12.3 
2025-05-30 00:00 UT   13 12 04.7   -09 43 05     2.221    2.993  131.8   14.6   111   12.3 
2025-05-31 00:00 UT   13 11 51.9   -09 41 56     2.232    2.994  130.8   14.9   111   12.3 
2025-06-01 00:00 UT   13 11 40.5   -09 40 55     2.243    2.995  129.8   15.1   111   12.3 
2025-06-02 00:00 UT   13 11 30.5   -09 40 01     2.255    2.996  128.8   15.3   111   12.4 
2025-06-03 00:00 UT   13 11 21.8   -09 39 14     2.267    2.997  127.8   15.5   111   12.4 
2025-06-04 00:00 UT   13 11 14.4   -09 38 35     2.279    2.998  126.8   15.7   111   12.4 
2025-06-05 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 

    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.