(737) Arequipa
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	19 Jul 2025	14.5	2.625 AU	3.352 AU	05h15m	+14°33'	37.9°	13.8°
Opposition	29 Dec 2025	13.3	2.986 AU	2.036 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)                : 0.2440442
            a (Semimajor axis)              : 2.5909275
            i (Inclination)                 : 12.36659
            Ω (Longitude of ascending node) : 184.60575
            ω (Argument of perihelion)      : 134.31824
            M (Mean anomaly)                : 61.39295
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 139.59647
            B (Latitude of perihelion)      : 8.81411
            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. A more printer-friendly version of the same chart can be found below.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-07-19 00:00 UT   05 15 47.1   +14 33 21     3.352    2.625   37.9   13.8   255   14.5 
2025-07-19 02:08 UT   05 15 55.7   +14 33 18     3.351    2.625   37.9   13.8   255   14.5 
2025-07-20 00:00 UT   05 17 24.1   +14 32 44     3.346    2.627   38.4   13.9   255   14.5 
2025-07-21 00:00 UT   05 19 00.6   +14 32 01     3.341    2.630   39.0   14.1   255   14.5 
2025-07-22 00:00 UT   05 20 36.8   +14 31 12     3.335    2.633   39.5   14.2   256   14.5 
2025-07-23 00:00 UT   05 22 12.6   +14 30 18     3.330    2.635   40.1   14.4   256   14.5 
2025-07-24 00:00 UT   05 23 47.9   +14 29 19     3.324    2.638   40.7   14.5   256   14.5 
2025-07-25 00:00 UT   05 25 22.9   +14 28 15     3.318    2.640   41.2   14.7   256   14.5 
2025-07-26 00:00 UT   05 26 57.4   +14 27 06     3.312    2.643   41.8   14.8   257   14.5 
2025-07-27 00:00 UT   05 28 31.5   +14 25 51     3.306    2.645   42.4   15.0   257   14.5 
2025-07-28 00:00 UT   05 30 05.2   +14 24 31     3.300    2.648   42.9   15.1   257   14.5 
2025-07-29 00:00 UT   05 31 38.4   +14 23 06     3.293    2.650   43.5   15.3   258   14.5 
2025-07-30 00:00 UT   05 33 11.2   +14 21 36     3.287    2.653   44.1   15.4   258   14.5 
2025-07-31 00:00 UT   05 34 43.5   +14 20 01     3.280    2.656   44.6   15.6   258   14.5 
2025-08-01 00:00 UT   05 36 15.4   +14 18 21     3.274    2.658   45.2   15.7   259   14.5 
2025-08-02 00:00 UT   05 37 46.7   +14 16 36     3.267    2.661   45.8   15.9   259   14.5 
2025-08-03 00:00 UT   05 39 17.6   +14 14 46     3.260    2.663   46.4   16.0   259   14.5 
2025-08-04 00:00 UT   05 40 48.0   +14 12 51     3.253    2.666   46.9   16.1   259   14.5 
2025-08-05 00:00 UT   05 42 18.0   +14 10 51     3.246    2.668   47.5   16.3   260   14.5 
2025-08-06 00:00 UT   05 43 47.4   +14 08 46     3.239    2.671   48.1   16.4   260   14.5 
2025-08-07 00:00 UT   05 45 16.3   +14 06 36     3.232    2.673   48.7   16.6   260   14.5 
2025-08-08 00:00 UT   05 46 44.8   +14 04 21     3.224    2.676   49.3   16.7   261   14.5 
2025-08-09 00:00 UT   05 48 12.7   +14 02 02     3.217    2.678   49.9   16.8   261   14.5 
2025-08-10 00:00 UT   05 49 40.1   +13 59 38     3.209    2.681   50.5   17.0   261   14.5 

    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.