(737) Arequipa
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	12 Dec 2025	13.4	2.955 AU	2.051 AU	06h46m	+04°58'	151.5°	9.1°
Opposition	29 Dec 2025	13.3	2.986 AU	2.037 AU	06h30m	+04°57'	161.7°	5.9°

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 Arequipa are:

            e (Eccentricity)                : 0.2440162
            a (Semimajor axis)              : 2.5926213
            i (Inclination)                 : 12.36334
            Ω (Longitude of ascending node) : 184.56132
            ω (Argument of perihelion)      : 134.51407
            M (Mean anomaly)                : 108.46935
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 139.74755
            B (Latitude of perihelion)      : 8.78212
            P (Orbital period in years)     : 4.17            
        

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
2025-12-12 00:00 UT   06 46 57.8   +04 58 48     2.051    2.955  151.5    9.1   312   13.4 
2025-12-12 13:20 UT   06 46 29.6   +04 58 02     2.050    2.956  152.0    9.0   313   13.4 
2025-12-13 00:00 UT   06 46 06.8   +04 57 28     2.048    2.956  152.4    8.9   313   13.4 
2025-12-14 00:00 UT   06 45 15.0   +04 56 17     2.045    2.958  153.3    8.6   315   13.4 
2025-12-15 00:00 UT   06 44 22.5   +04 55 14     2.043    2.960  154.2    8.3   317   13.4 
2025-12-16 00:00 UT   06 43 29.2   +04 54 21     2.040    2.962  155.0    8.1   319   13.4 
2025-12-17 00:00 UT   06 42 35.3   +04 53 38     2.038    2.964  155.8    7.8   321   13.4 
2025-12-18 00:00 UT   06 41 40.7   +04 53 03     2.037    2.966  156.6    7.6   324   13.4 
2025-12-19 00:00 UT   06 40 45.6   +04 52 38     2.035    2.968  157.4    7.3   326   13.4 
2025-12-20 00:00 UT   06 39 50.0   +04 52 22     2.034    2.969  158.1    7.1   329   13.3 
2025-12-21 00:00 UT   06 38 53.9   +04 52 15     2.033    2.971  158.7    6.9   332   13.3 
2025-12-22 00:00 UT   06 37 57.5   +04 52 18     2.032    2.973  159.3    6.7   335   13.3 
2025-12-23 00:00 UT   06 37 00.7   +04 52 29     2.032    2.975  159.9    6.5   338   13.3 
2025-12-24 00:00 UT   06 36 03.6   +04 52 51     2.032    2.977  160.3    6.4   341   13.3 
2025-12-25 00:00 UT   06 35 06.4   +04 53 21     2.032    2.978  160.8    6.2   345   13.3 
2025-12-26 00:00 UT   06 34 08.9   +04 54 01     2.033    2.980  161.1    6.1   348   13.3 
2025-12-27 00:00 UT   06 33 11.4   +04 54 50     2.033    2.982  161.4    6.0   352   13.3 
2025-12-28 00:00 UT   06 32 13.9   +04 55 48     2.034    2.984  161.6    6.0   356   13.3 
2025-12-29 00:00 UT   06 31 16.4   +04 56 55     2.036    2.986  161.7    5.9   360   13.3 
2025-12-30 00:00 UT   06 30 19.1   +04 58 11     2.038    2.987  161.7    5.9     4   13.3 
2025-12-31 00:00 UT   06 29 21.8   +04 59 35     2.039    2.989  161.7    5.9     8   13.3 
2026-01-01 00:00 UT   06 28 24.8   +05 01 09     2.042    2.991  161.6    6.0    12   13.3 
2026-01-02 00:00 UT   06 27 28.0   +05 02 51     2.044    2.993  161.4    6.0    16   13.3 
2026-01-03 00:00 UT   06 26 31.6   +05 04 41     2.047    2.994  161.1    6.1    19   13.3 
2026-01-04 00:00 UT   06 25 35.5   +05 06 40     2.050    2.996  160.7    6.2    23   13.3 
2026-01-05 00:00 UT   06 24 39.8   +05 08 48     2.054    2.998  160.3    6.4    26   13.4 
2026-01-06 00:00 UT   06 23 44.7   +05 11 03     2.057    3.000  159.8    6.5    30   13.4 
2026-01-07 00:00 UT   06 22 50.0   +05 13 27     2.061    3.001  159.2    6.7    33   13.4 
2026-01-08 00:00 UT   06 21 55.9   +05 15 58     2.066    3.003  158.6    6.8    36   13.4 
2026-01-09 00:00 UT   06 21 02.5   +05 18 37     2.070    3.005  158.0    7.0    39   13.4 
2026-01-10 00:00 UT   06 20 09.8   +05 21 24     2.075    3.006  157.3    7.3    41   13.4 
2026-01-11 00:00 UT   06 19 17.7   +05 24 18     2.080    3.008  156.6    7.5    44   13.4 

    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.