(737) Arequipa
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	12 Sep 2026	15.1	3.226 AU	4.118 AU	09h42m	+06°21'	24.2°	7.3°
Opposition	5 Mar 2027	13.3	3.133 AU	2.145 AU	10h54m	+00°15'	173.8°	2.0°

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)                : 0.2440365
            a (Semimajor axis)              : 2.5938044
            i (Inclination)                 : 12.37031
            Ω (Longitude of ascending node) : 184.43864
            ω (Argument of perihelion)      : 134.80759
            M (Mean anomaly)                : 155.41850
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 139.91915
            B (Latitude of perihelion)      : 8.74231
            P (Orbital period in years)     : 4.18            
        

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
2026-09-12 00:00 UT   09 42 21.9   +06 21 16     4.118    3.226   24.2    7.3   273   15.1 
2026-09-12 21:11 UT   09 43 28.8   +06 15 50     4.113    3.227   24.7    7.5   274   15.1 
2026-09-13 00:00 UT   09 43 37.7   +06 15 07     4.113    3.227   24.8    7.5   274   15.1 
2026-09-14 00:00 UT   09 44 53.2   +06 08 56     4.107    3.227   25.4    7.7   275   15.1 
2026-09-15 00:00 UT   09 46 08.6   +06 02 43     4.100    3.227   26.0    7.9   275   15.1 
2026-09-16 00:00 UT   09 47 23.7   +05 56 30     4.094    3.227   26.6    8.0   275   15.1 
2026-09-17 00:00 UT   09 48 38.6   +05 50 15     4.087    3.227   27.2    8.2   276   15.1 
2026-09-18 00:00 UT   09 49 53.2   +05 43 60     4.081    3.227   27.9    8.4   276   15.1 
2026-09-19 00:00 UT   09 51 07.6   +05 37 43     4.074    3.227   28.5    8.5   277   15.1 
2026-09-20 00:00 UT   09 52 21.8   +05 31 25     4.067    3.227   29.1    8.7   277   15.1 
2026-09-21 00:00 UT   09 53 35.8   +05 25 06     4.060    3.227   29.8    8.9   278   15.1 
2026-09-22 00:00 UT   09 54 49.5   +05 18 47     4.053    3.227   30.4    9.1   278   15.1 
2026-09-23 00:00 UT   09 56 03.0   +05 12 26     4.045    3.227   31.0    9.2   278   15.1 
2026-09-24 00:00 UT   09 57 16.2   +05 06 05     4.038    3.227   31.7    9.4   279   15.1 
2026-09-25 00:00 UT   09 58 29.1   +04 59 43     4.030    3.227   32.3    9.6   279   15.1 
2026-09-26 00:00 UT   09 59 41.8   +04 53 20     4.022    3.227   32.9    9.7   279   15.1 
2026-09-27 00:00 UT   10 00 54.3   +04 46 56     4.014    3.227   33.6    9.9   280   15.1 
2026-09-28 00:00 UT   10 02 06.5   +04 40 32     4.006    3.227   34.2   10.1   280   15.1 
2026-09-29 00:00 UT   10 03 18.4   +04 34 07     3.997    3.227   34.9   10.2   280   15.1 
2026-09-30 00:00 UT   10 04 30.0   +04 27 42     3.989    3.227   35.5   10.4   281   15.1 
2026-10-01 00:00 UT   10 05 41.4   +04 21 16     3.980    3.226   36.2   10.6   281   15.1 
2026-10-02 00:00 UT   10 06 52.5   +04 14 49     3.972    3.226   36.8   10.7   281   15.1 
2026-10-03 00:00 UT   10 08 03.3   +04 08 23     3.963    3.226   37.5   10.9   282   15.1 
2026-10-04 00:00 UT   10 09 13.8   +04 01 55     3.954    3.226   38.1   11.0   282   15.1 
2026-10-05 00:00 UT   10 10 24.0   +03 55 28     3.944    3.226   38.8   11.2   282   15.1 
2026-10-06 00:00 UT   10 11 34.0   +03 49 00     3.935    3.226   39.4   11.4   282   15.1 
2026-10-07 00:00 UT   10 12 43.6   +03 42 32     3.926    3.226   40.1   11.5   283   15.1 
2026-10-08 00:00 UT   10 13 52.9   +03 36 04     3.916    3.226   40.8   11.7   283   15.1 

    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.