(737) Arequipa
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	27 Sep 2026	15.1	3.227 AU	4.014 AU	10h00m	+04°46'	33.6°	9.9°
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
2026-09-27 00:00 UT   10 00 54.3   +04 46 56     4.014    3.227   33.6    9.9   280   15.1 
2026-09-27 14:09 UT   10 01 36.9   +04 43 10     4.009    3.227   33.9   10.0   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 
2026-10-09 00:00 UT   10 15 01.9   +03 29 36     3.906    3.226   41.4   11.8   283   15.1 
2026-10-10 00:00 UT   10 16 10.6   +03 23 08     3.896    3.226   42.1   12.0   283   15.1 
2026-10-11 00:00 UT   10 17 18.9   +03 16 41     3.886    3.225   42.8   12.1   284   15.1 
2026-10-12 00:00 UT   10 18 26.9   +03 10 13     3.876    3.225   43.4   12.3   284   15.1 
2026-10-13 00:00 UT   10 19 34.6   +03 03 45     3.866    3.225   44.1   12.4   284   15.1 
2026-10-14 00:00 UT   10 20 41.9   +02 57 18     3.855    3.225   44.8   12.6   284   15.1 
2026-10-15 00:00 UT   10 21 48.8   +02 50 52     3.845    3.225   45.5   12.7   285   15.1 
2026-10-16 00:00 UT   10 22 55.4   +02 44 25     3.834    3.225   46.2   12.9   285   15.1 
2026-10-17 00:00 UT   10 24 01.6   +02 37 59     3.823    3.224   46.8   13.0   285   15.1 
2026-10-18 00:00 UT   10 25 07.5   +02 31 34     3.812    3.224   47.5   13.2   285   15.1 
2026-10-19 00:00 UT   10 26 13.0   +02 25 09     3.801    3.224   48.2   13.3   285   15.1 
2026-10-20 00:00 UT   10 27 18.1   +02 18 45     3.790    3.224   48.9   13.5   286   15.1 
2026-10-21 00:00 UT   10 28 22.8   +02 12 22     3.778    3.224   49.6   13.6   286   15.1 
2026-10-22 00:00 UT   10 29 27.1   +02 05 60     3.767    3.223   50.3   13.7   286   15.1 
2026-10-23 00:00 UT   10 30 31.0   +01 59 38     3.755    3.223   51.0   13.9   286   15.1 
2026-10-24 00:00 UT   10 31 34.5   +01 53 17     3.744    3.223   51.7   14.0   286   15.1 
2026-10-25 00:00 UT   10 32 37.6   +01 46 58     3.732    3.223   52.4   14.2   287   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.