(10) Hygiea
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	18 May 2026	12.0	3.304 AU	3.957 AU	06h46m	+22°28'	43.9°	12.3°
Opposition	4 Mar 2027	9.8	3.011 AU	2.022 AU	10h52m	+01°49'	175.0°	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 Hygiea are:

            e (Eccentricity)                : 0.1082238
            a (Semimajor axis)              : 3.1475913
            i (Inclination)                 : 3.83294
            Ω (Longitude of ascending node) : 283.12164
            ω (Argument of perihelion)      : 312.60583
            M (Mean anomaly)                : 216.69032
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 235.79140
            B (Latitude of perihelion)      : -2.82019
            P (Orbital period in years)     : 5.58            
        

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
2026-05-18 00:00 UT   06 46 10.7   +22 28 01     3.957    3.304   43.9   12.3    95   12.0 
2026-05-18 04:51 UT   06 46 26.5   +22 27 38     3.959    3.304   43.8   12.2    95   12.0 
2026-05-19 00:00 UT   06 47 29.0   +22 26 07     3.966    3.303   43.3   12.1    95   12.0 
2026-05-20 00:00 UT   06 48 47.5   +22 24 09     3.975    3.303   42.6   12.0    95   12.0 
2026-05-21 00:00 UT   06 50 06.4   +22 22 09     3.984    3.302   42.0   11.8    96   12.0 
2026-05-22 00:00 UT   06 51 25.6   +22 20 07     3.993    3.301   41.3   11.7    96   12.0 
2026-05-23 00:00 UT   06 52 45.1   +22 18 01     4.001    3.300   40.7   11.5    96   12.0 
2026-05-24 00:00 UT   06 54 04.9   +22 15 53     4.010    3.299   40.0   11.4    96   12.0 
2026-05-25 00:00 UT   06 55 25.0   +22 13 41     4.018    3.298   39.4   11.2    96   12.0 
2026-05-26 00:00 UT   06 56 45.4   +22 11 27     4.026    3.297   38.7   11.1    96   12.0 
2026-05-27 00:00 UT   06 58 06.0   +22 09 10     4.034    3.296   38.1   10.9    96   12.0 
2026-05-28 00:00 UT   06 59 26.9   +22 06 50     4.042    3.295   37.4   10.8    97   12.0 
2026-05-29 00:00 UT   07 00 48.0   +22 04 27     4.050    3.294   36.8   10.6    97   11.9 
2026-05-30 00:00 UT   07 02 09.4   +22 02 01     4.058    3.294   36.1   10.5    97   11.9 
2026-05-31 00:00 UT   07 03 31.1   +21 59 32     4.065    3.293   35.5   10.3    97   11.9 
2026-06-01 00:00 UT   07 04 52.9   +21 57 00     4.072    3.292   34.8   10.1    97   11.9 
2026-06-02 00:00 UT   07 06 15.1   +21 54 25     4.080    3.291   34.2   10.0    97   11.9 
2026-06-03 00:00 UT   07 07 37.4   +21 51 47     4.087    3.290   33.6    9.8    98   11.9 
2026-06-04 00:00 UT   07 08 59.9   +21 49 06     4.094    3.289   32.9    9.7    98   11.9 
2026-06-05 00:00 UT   07 10 22.7   +21 46 22     4.101    3.288   32.3    9.5    98   11.9 
2026-06-06 00:00 UT   07 11 45.7   +21 43 35     4.107    3.287   31.7    9.3    98   11.9 
2026-06-07 00:00 UT   07 13 08.9   +21 40 45     4.114    3.286   31.0    9.2    98   11.9 
2026-06-08 00:00 UT   07 14 32.2   +21 37 52     4.120    3.285   30.4    9.0    98   11.9 
2026-06-09 00:00 UT   07 15 55.8   +21 34 55     4.126    3.284   29.8    8.8    99   11.9 
2026-06-10 00:00 UT   07 17 19.6   +21 31 56     4.133    3.284   29.2    8.7    99   11.9 
2026-06-11 00:00 UT   07 18 43.5   +21 28 53     4.139    3.283   28.5    8.5    99   11.9 
2026-06-12 00:00 UT   07 20 07.6   +21 25 47     4.144    3.282   27.9    8.3    99   11.9 
2026-06-13 00:00 UT   07 21 31.9   +21 22 38     4.150    3.281   27.3    8.2    99   11.9 

    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.