(69) Hesperia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	28 Sep 2026	13.3	3.161 AU	3.895 AU	14h44m	-10°25'	37.6°	11.2°
Opposition	26 Jun 2027	12.2	3.444 AU	2.443 AU	18h18m	-11°13'	167.9°	3.6°

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 Hesperia are:

            e (Eccentricity)                : 0.1688529
            a (Semimajor axis)              : 2.9771081
            i (Inclination)                 : 8.58546
            Ω (Longitude of ascending node) : 184.89332
            ω (Argument of perihelion)      : 288.17500
            M (Mean anomaly)                : 81.16129
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 113.26054
            B (Latitude of perihelion)      : -8.15412
            P (Orbital period in years)     : 5.14            
        

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
2026-09-28 00:00 UT   14 44 04.7   -10 25 57     3.895    3.161   37.6   11.2   101   13.3 
2026-09-28 01:51 UT   14 44 10.8   -10 26 25     3.896    3.161   37.6   11.1   101   13.3 
2026-09-29 00:00 UT   14 45 24.2   -10 31 55     3.905    3.163   37.0   11.0   101   13.3 
2026-09-30 00:00 UT   14 46 43.9   -10 37 52     3.914    3.164   36.4   10.8   100   13.3 
2026-10-01 00:00 UT   14 48 03.9   -10 43 48     3.924    3.165   35.7   10.6   100   13.3 
2026-10-02 00:00 UT   14 49 24.1   -10 49 42     3.933    3.167   35.1   10.5   100   13.3 
2026-10-03 00:00 UT   14 50 44.6   -10 55 34     3.942    3.168   34.5   10.3    99   13.3 
2026-10-04 00:00 UT   14 52 05.3   -11 01 26     3.952    3.170   33.8   10.1    99   13.3 
2026-10-05 00:00 UT   14 53 26.3   -11 07 15     3.960    3.171   33.2    9.9    99   13.3 
2026-10-06 00:00 UT   14 54 47.5   -11 13 03     3.969    3.173   32.6    9.8    99   13.3 
2026-10-07 00:00 UT   14 56 09.0   -11 18 49     3.978    3.174   31.9    9.6    98   13.3 
2026-10-08 00:00 UT   14 57 30.7   -11 24 33     3.987    3.176   31.3    9.4    98   13.3 
2026-10-09 00:00 UT   14 58 52.6   -11 30 16     3.995    3.177   30.7    9.2    98   13.3 
2026-10-10 00:00 UT   15 00 14.8   -11 35 57     4.003    3.179   30.1    9.1    97   13.3 
2026-10-11 00:00 UT   15 01 37.2   -11 41 36     4.011    3.180   29.4    8.9    97   13.3 
2026-10-12 00:00 UT   15 02 59.8   -11 47 13     4.019    3.181   28.8    8.7    97   13.3 
2026-10-13 00:00 UT   15 04 22.6   -11 52 47     4.027    3.183   28.2    8.5    96   13.3 
2026-10-14 00:00 UT   15 05 45.6   -11 58 20     4.035    3.184   27.6    8.3    96   13.3 
2026-10-15 00:00 UT   15 07 08.8   -12 03 51     4.043    3.186   26.9    8.2    95   13.3 
2026-10-16 00:00 UT   15 08 32.2   -12 09 19     4.050    3.187   26.3    8.0    95   13.3 
2026-10-17 00:00 UT   15 09 55.9   -12 14 46     4.057    3.189   25.7    7.8    95   13.3 
2026-10-18 00:00 UT   15 11 19.7   -12 20 10     4.065    3.190   25.1    7.6    94   13.3 
2026-10-19 00:00 UT   15 12 43.6   -12 25 32     4.072    3.191   24.5    7.4    94   13.3 
2026-10-20 00:00 UT   15 14 07.8   -12 30 51     4.078    3.193   23.8    7.2    93   13.3 
2026-10-21 00:00 UT   15 15 32.1   -12 36 08     4.085    3.194   23.2    7.1    93   13.3 
2026-10-22 00:00 UT   15 16 56.7   -12 41 23     4.092    3.196   22.6    6.9    92   13.3 

    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.