(737) Arequipa
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	29 Dec 2025	13.3	2.986 AU	2.037 AU	06h30m	+04°57'	161.7°	5.9°
Today	5 Feb 2026	13.9	3.049 AU	2.291 AU	06h03m	+07°07'	132.8°	13.7°

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
2026-02-05 00:00 UT   06 03 32.1   +07 07 36     2.291    3.049  132.8   13.7    75   13.9 
2026-02-05 00:15 UT   06 03 31.9   +07 07 40     2.291    3.049  132.8   13.7    75   13.9 
2026-02-06 00:00 UT   06 03 11.5   +07 12 34     2.303    3.050  131.8   13.9    75   13.9 
2026-02-07 00:00 UT   06 02 52.5   +07 17 33     2.314    3.052  130.8   14.2    76   14.0 
2026-02-08 00:00 UT   06 02 34.8   +07 22 34     2.326    3.053  129.8   14.4    76   14.0 
2026-02-09 00:00 UT   06 02 18.7   +07 27 37     2.338    3.055  128.8   14.6    77   14.0 
2026-02-10 00:00 UT   06 02 04.0   +07 32 41     2.350    3.056  127.9   14.8    77   14.0 
2026-02-11 00:00 UT   06 01 50.8   +07 37 46     2.362    3.058  126.9   15.0    78   14.0 
2026-02-12 00:00 UT   06 01 39.0   +07 42 53     2.374    3.059  125.9   15.2    78   14.1 
2026-02-13 00:00 UT   06 01 28.7   +07 48 01     2.387    3.061  124.9   15.3    79   14.1 
2026-02-14 00:00 UT   06 01 19.9   +07 53 09     2.399    3.062  123.9   15.5    79   14.1 
2026-02-15 00:00 UT   06 01 12.6   +07 58 18     2.412    3.064  123.0   15.7    80   14.1 
2026-02-16 00:00 UT   06 01 06.7   +08 03 28     2.425    3.065  122.0   15.9    80   14.1 
2026-02-17 00:00 UT   06 01 02.3   +08 08 37     2.438    3.067  121.0   16.0    81   14.1 
2026-02-18 00:00 UT   06 00 59.3   +08 13 47     2.451    3.068  120.1   16.2    81   14.2 
2026-02-19 00:00 UT   06 00 57.8   +08 18 57     2.464    3.069  119.1   16.3    81   14.2 
2026-02-20 00:00 UT   06 00 57.7   +08 24 07     2.478    3.071  118.2   16.5    82   14.2 
2026-02-21 00:00 UT   06 00 59.1   +08 29 17     2.491    3.072  117.2   16.6    82   14.2 
2026-02-22 00:00 UT   06 01 01.9   +08 34 26     2.505    3.074  116.3   16.8    83   14.2 
2026-02-23 00:00 UT   06 01 06.1   +08 39 34     2.519    3.075  115.3   16.9    83   14.3 
2026-02-24 00:00 UT   06 01 11.7   +08 44 41     2.533    3.077  114.4   17.0    83   14.3 
2026-02-25 00:00 UT   06 01 18.7   +08 49 48     2.547    3.078  113.5   17.2    84   14.3 
2026-02-26 00:00 UT   06 01 27.1   +08 54 54     2.561    3.079  112.6   17.3    84   14.3 
2026-02-27 00:00 UT   06 01 36.8   +08 59 58     2.575    3.081  111.6   17.4    84   14.3 
2026-02-28 00:00 UT   06 01 47.9   +09 05 02     2.589    3.082  110.7   17.5    85   14.3 
2026-03-01 00:00 UT   06 02 00.3   +09 10 03     2.604    3.084  109.8   17.6    85   14.4 
2026-03-02 00:00 UT   06 02 14.1   +09 15 04     2.618    3.085  108.9   17.7    85   14.4 
2026-03-03 00:00 UT   06 02 29.1   +09 20 03     2.632    3.086  108.0   17.8    86   14.4 
2026-03-04 00:00 UT   06 02 45.4   +09 24 60     2.647    3.088  107.1   17.9    86   14.4 
2026-03-05 00:00 UT   06 03 03.0   +09 29 55     2.662    3.089  106.2   18.0    86   14.4 
2026-03-06 00:00 UT   06 03 21.9   +09 34 49     2.676    3.090  105.3   18.0    86   14.4 
2026-03-07 00:00 UT   06 03 42.0   +09 39 40     2.691    3.092  104.4   18.1    87   14.4 

    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.