(69) Hesperia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	11 Dec 2024	10.6	2.533 AU	1.565 AU	05h22m	+09°36'	166.5°	5.2°
Today	5 Feb 2025	11.6	2.492 AU	1.875 AU	04h57m	+11°09'	117.7°	20.5°

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)                : 0.1698281
            a (Semimajor axis)              : 2.9797912
            i (Inclination)                 : 8.58514
            Ω (Longitude of ascending node) : 184.95241
            ω (Argument of perihelion)      : 288.23002
            M (Mean anomaly)                : 325.99883
            Epoch                           : 2024 Oct 17

            L (Longitude of perihelion)     : 113.37513
            B (Latitude of perihelion)      : -8.15123
            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. 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
2025-02-05 00:00 UT   04 57 50.3   +11 09 44     1.875    2.492  117.7   20.5    78   11.6 
2025-02-05 11:46 UT   04 57 58.3   +11 11 56     1.880    2.491  117.3   20.6    78   11.6 
2025-02-06 00:00 UT   04 58 07.1   +11 14 14     1.885    2.491  116.8   20.7    78   11.6 
2025-02-07 00:00 UT   04 58 25.5   +11 18 47     1.896    2.491  115.9   20.9    78   11.6 
2025-02-08 00:00 UT   04 58 45.7   +11 23 22     1.907    2.490  115.1   21.0    79   11.6 
2025-02-09 00:00 UT   04 59 07.4   +11 27 59     1.917    2.490  114.2   21.2    79   11.7 
2025-02-10 00:00 UT   04 59 30.8   +11 32 39     1.928    2.489  113.3   21.4    79   11.7 
2025-02-11 00:00 UT   04 59 55.8   +11 37 20     1.939    2.489  112.4   21.5    79   11.7 
2025-02-12 00:00 UT   05 00 22.3   +11 42 03     1.950    2.488  111.5   21.7    80   11.7 
2025-02-13 00:00 UT   05 00 50.5   +11 46 48     1.961    2.488  110.7   21.8    80   11.7 
2025-02-14 00:00 UT   05 01 20.1   +11 51 35     1.972    2.487  109.8   21.9    80   11.7 
2025-02-15 00:00 UT   05 01 51.4   +11 56 22     1.984    2.487  109.0   22.1    80   11.7 
2025-02-16 00:00 UT   05 02 24.1   +12 01 11     1.995    2.486  108.1   22.2    81   11.8 
2025-02-17 00:00 UT   05 02 58.4   +12 06 01     2.006    2.486  107.3   22.3    81   11.8 
2025-02-18 00:00 UT   05 03 34.1   +12 10 51     2.018    2.485  106.5   22.4    81   11.8 
2025-02-19 00:00 UT   05 04 11.4   +12 15 43     2.029    2.485  105.6   22.5    81   11.8 
2025-02-20 00:00 UT   05 04 50.1   +12 20 35     2.041    2.485  104.8   22.6    82   11.8 
2025-02-21 00:00 UT   05 05 30.2   +12 25 27     2.052    2.484  104.0   22.7    82   11.8 
2025-02-22 00:00 UT   05 06 11.8   +12 30 19     2.064    2.484  103.2   22.8    82   11.9 
2025-02-23 00:00 UT   05 06 54.8   +12 35 12     2.076    2.483  102.4   22.9    82   11.9 
2025-02-24 00:00 UT   05 07 39.1   +12 40 04     2.087    2.483  101.6   23.0    83   11.9 
2025-02-25 00:00 UT   05 08 24.9   +12 44 56     2.099    2.483  100.8   23.1    83   11.9 
2025-02-26 00:00 UT   05 09 12.0   +12 49 48     2.111    2.482  100.0   23.1    83   11.9 
2025-02-27 00:00 UT   05 10 00.5   +12 54 39     2.123    2.482   99.2   23.2    83   11.9 
2025-02-28 00:00 UT   05 10 50.3   +12 59 30     2.135    2.481   98.4   23.3    84   11.9 
2025-03-01 00:00 UT   05 11 41.4   +13 04 20     2.147    2.481   97.6   23.3    84   12.0 
2025-03-02 00:00 UT   05 12 33.8   +13 09 09     2.159    2.481   96.9   23.4    84   12.0 
2025-03-03 00:00 UT   05 13 27.5   +13 13 57     2.171    2.480   96.1   23.4    84   12.0 
2025-03-04 00:00 UT   05 14 22.5   +13 18 43     2.183    2.480   95.4   23.5    85   12.0 
2025-03-05 00:00 UT   05 15 18.7   +13 23 28     2.195    2.480   94.6   23.5    85   12.0 
2025-03-06 00:00 UT   05 16 16.1   +13 28 12     2.207    2.479   93.9   23.5    85   12.0 
2025-03-07 00:00 UT   05 17 14.7   +13 32 54     2.219    2.479   93.1   23.6    85   12.0 

    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.