(10) Hygiea
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	25 Jun 2026	11.8	3.270 AU	4.207 AU	07h38m	+20°40'	19.9°	6.1°
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
2026-06-25 00:00 UT   07 38 34.1   +20 40 42     4.207    3.270   19.9    6.1   102   11.8 
2026-06-25 13:05 UT   07 39 20.9   +20 38 37     4.209    3.269   19.5    6.0   102   11.8 
2026-06-26 00:00 UT   07 39 60.0   +20 36 52     4.211    3.269   19.3    5.9   102   11.8 
2026-06-27 00:00 UT   07 41 26.0   +20 32 58     4.215    3.268   18.6    5.7   102   11.8 
2026-06-28 00:00 UT   07 42 52.0   +20 29 02     4.218    3.267   18.0    5.5   102   11.8 
2026-06-29 00:00 UT   07 44 18.1   +20 25 02     4.221    3.266   17.4    5.3   103   11.8 
2026-06-30 00:00 UT   07 45 44.3   +20 20 59     4.225    3.265   16.8    5.2   103   11.8 
2026-07-01 00:00 UT   07 47 10.6   +20 16 53     4.228    3.264   16.2    5.0   103   11.8 
2026-07-02 00:00 UT   07 48 36.9   +20 12 44     4.231    3.263   15.6    4.8   104   11.8 
2026-07-03 00:00 UT   07 50 03.3   +20 08 31     4.233    3.262   15.0    4.6   104   11.8 
2026-07-04 00:00 UT   07 51 29.8   +20 04 16     4.236    3.261   14.4    4.4   104   11.7 
2026-07-05 00:00 UT   07 52 56.3   +19 59 57     4.238    3.260   13.8    4.3   104   11.7 
2026-07-06 00:00 UT   07 54 22.8   +19 55 35     4.241    3.259   13.2    4.1   105   11.7 
2026-07-07 00:00 UT   07 55 49.4   +19 51 10     4.243    3.258   12.6    3.9   105   11.7 
2026-07-08 00:00 UT   07 57 16.0   +19 46 42     4.245    3.257   12.0    3.7   106   11.7 
2026-07-09 00:00 UT   07 58 42.7   +19 42 11     4.247    3.256   11.4    3.5   106   11.7 
2026-07-10 00:00 UT   08 00 09.4   +19 37 37     4.248    3.255   10.8    3.3   106   11.7 
2026-07-11 00:00 UT   08 01 36.1   +19 32 59     4.250    3.254   10.2    3.2   107   11.7 
2026-07-12 00:00 UT   08 03 02.8   +19 28 19     4.251    3.253    9.6    3.0   107   11.7 
2026-07-13 00:00 UT   08 04 29.6   +19 23 35     4.253    3.252    9.0    2.8   108   11.6 
2026-07-14 00:00 UT   08 05 56.4   +19 18 48     4.254    3.251    8.4    2.6   108   11.6 
2026-07-15 00:00 UT   08 07 23.2   +19 13 58     4.255    3.250    7.8    2.4   109   11.6 
2026-07-16 00:00 UT   08 08 49.9   +19 09 06     4.255    3.249    7.2    2.2   110   11.6 
2026-07-17 00:00 UT   08 10 16.7   +19 04 10     4.256    3.248    6.6    2.1   111   11.6 
2026-07-18 00:00 UT   08 11 43.5   +18 59 11     4.257    3.247    6.0    1.9   112   11.6 
2026-07-19 00:00 UT   08 13 10.2   +18 54 09     4.257    3.247    5.4    1.7   113   11.6 

    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.