(737) Arequipa
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	11 Oct 2026	15.1	3.225 AU	3.886 AU	10h17m	+03°16'	42.8°	12.1°
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
2026-10-11 00:00 UT   10 17 18.9   +03 16 41     3.886    3.225   42.8   12.1   284   15.1 
2026-10-11 01:09 UT   10 17 22.2   +03 16 22     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 
2026-10-26 00:00 UT   10 33 40.3   +01 40 39     3.720    3.223   53.1   14.3   287   15.1 
2026-10-27 00:00 UT   10 34 42.5   +01 34 22     3.708    3.222   53.8   14.4   287   15.1 
2026-10-28 00:00 UT   10 35 44.4   +01 28 05     3.696    3.222   54.5   14.5   287   15.1 
2026-10-29 00:00 UT   10 36 45.8   +01 21 50     3.683    3.222   55.2   14.7   287   15.1 
2026-10-30 00:00 UT   10 37 46.7   +01 15 36     3.671    3.222   55.9   14.8   287   15.1 
2026-10-31 00:00 UT   10 38 47.3   +01 09 24     3.658    3.221   56.7   14.9   288   15.1 
2026-11-01 00:00 UT   10 39 47.3   +01 03 13     3.646    3.221   57.4   15.0   288   15.1 
2026-11-02 00:00 UT   10 40 46.9   +00 57 03     3.633    3.221   58.1   15.2   288   15.1 
2026-11-03 00:00 UT   10 41 46.0   +00 50 55     3.620    3.220   58.8   15.3   288   15.1 
2026-11-04 00:00 UT   10 42 44.6   +00 44 49     3.607    3.220   59.6   15.4   288   15.1 
2026-11-05 00:00 UT   10 43 42.8   +00 38 45     3.594    3.220   60.3   15.5   288   15.1 
2026-11-06 00:00 UT   10 44 40.4   +00 32 42     3.581    3.220   61.0   15.6   288   15.1 
2026-11-07 00:00 UT   10 45 37.5   +00 26 42     3.567    3.219   61.8   15.7   289   15.1 
2026-11-08 00:00 UT   10 46 34.2   +00 20 43     3.554    3.219   62.5   15.8   289   15.1 
2026-11-09 00:00 UT   10 47 30.2   +00 14 47     3.541    3.219   63.2   16.0   289   15.1 
2026-11-10 00:00 UT   10 48 25.8   +00 08 53     3.527    3.218   64.0   16.1   289   15.0 

    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.