A845 XA
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	15 Jan 2025	12.2	2.417 AU	2.862 AU	15h59m	-15°58'	53.9°	19.2°
Opposition	6 Jun 2025	10.6	2.703 AU	1.694 AU	17h01m	-14°52'	172.2°	2.9°

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 A845 XA are:

            e (Eccentricity)                : 0.1889852
            a (Semimajor axis)              : 2.5775401
            i (Inclination)                 : 5.36542
            Ω (Longitude of ascending node) : 141.56755
            ω (Argument of perihelion)      : 358.79234
            M (Mean anomaly)                : 208.56769
            Epoch                           : 2022 Aug 09

            L (Longitude of perihelion)     : 140.36518
            B (Latitude of perihelion)      : -0.11292
            P (Orbital period in years)     : 4.14            
        

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
2025-01-15 00:00 UT   15 59 04.2   -15 58 44     2.862    2.417   53.9   19.2   285   12.2 
2025-01-15 12:08 UT   15 59 54.9   -16 00 35     2.858    2.418   54.2   19.3   285   12.2 
2025-01-16 00:00 UT   16 00 44.4   -16 02 23     2.854    2.419   54.5   19.3   285   12.2 
2025-01-17 00:00 UT   16 02 24.1   -16 05 56     2.845    2.421   55.1   19.5   284   12.2 
2025-01-18 00:00 UT   16 04 03.4   -16 09 23     2.836    2.423   55.7   19.6   284   12.2 
2025-01-19 00:00 UT   16 05 42.1   -16 12 44     2.828    2.425   56.4   19.7   284   12.2 
2025-01-20 00:00 UT   16 07 20.4   -16 15 60     2.819    2.427   57.0   19.9   284   12.2 
2025-01-21 00:00 UT   16 08 58.2   -16 19 09     2.810    2.429   57.6   20.0   284   12.2 
2025-01-22 00:00 UT   16 10 35.5   -16 22 13     2.801    2.431   58.2   20.1   283   12.2 
2025-01-23 00:00 UT   16 12 12.2   -16 25 12     2.792    2.433   58.8   20.3   283   12.2 
2025-01-24 00:00 UT   16 13 48.4   -16 28 04     2.783    2.435   59.5   20.4   283   12.2 
2025-01-25 00:00 UT   16 15 24.0   -16 30 51     2.774    2.438   60.1   20.5   283   12.2 
2025-01-26 00:00 UT   16 16 59.1   -16 33 32     2.765    2.440   60.7   20.6   283   12.2 
2025-01-27 00:00 UT   16 18 33.5   -16 36 07     2.755    2.442   61.4   20.7   282   12.2 
2025-01-28 00:00 UT   16 20 07.4   -16 38 37     2.746    2.444   62.0   20.8   282   12.2 
2025-01-29 00:00 UT   16 21 40.7   -16 41 01     2.736    2.446   62.6   21.0   282   12.2 
2025-01-30 00:00 UT   16 23 13.3   -16 43 19     2.727    2.448   63.3   21.1   282   12.2 
2025-01-31 00:00 UT   16 24 45.4   -16 45 32     2.717    2.450   63.9   21.2   282   12.2 
2025-02-01 00:00 UT   16 26 16.7   -16 47 39     2.708    2.452   64.6   21.3   281   12.2 
2025-02-02 00:00 UT   16 27 47.4   -16 49 41     2.698    2.454   65.2   21.4   281   12.2 
2025-02-03 00:00 UT   16 29 17.5   -16 51 37     2.688    2.456   65.9   21.5   281   12.2 
2025-02-04 00:00 UT   16 30 46.8   -16 53 28     2.678    2.458   66.5   21.6   281   12.2 
2025-02-05 00:00 UT   16 32 15.5   -16 55 13     2.668    2.460   67.2   21.7   281   12.1 
2025-02-06 00:00 UT   16 33 43.4   -16 56 53     2.658    2.462   67.9   21.8   280   12.1 

    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.