(63) Ausonia
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	20 Jun 2025	10.3	2.106 AU	1.291 AU	21h25m	-21°48'	131.4°	21.2°
Opposition	2 Aug 2025	9.3	2.136 AU	1.124 AU	20h57m	-22°28'	174.9°	2.4°

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 Ausonia are:

            e (Eccentricity)                : 0.1282281
            a (Semimajor axis)              : 2.3949157
            i (Inclination)                 : 5.77292
            Ω (Longitude of ascending node) : 337.68535
            ω (Argument of perihelion)      : 295.67009
            M (Mean anomaly)                : 4.87062
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 273.46936
            B (Latitude of perihelion)      : -5.20149
            P (Orbital period in years)     : 3.71            
        

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
2025-06-20 00:00 UT   21 25 24.2   -21 48 21     1.291    2.106  131.4   21.2   257   10.3 
2025-06-20 07:07 UT   21 25 24.8   -21 48 15     1.288    2.106  131.7   21.1   257   10.3 
2025-06-21 00:00 UT   21 25 25.5   -21 48 04     1.283    2.106  132.4   20.9   258   10.3 
2025-06-22 00:00 UT   21 25 24.6   -21 47 54     1.275    2.107  133.3   20.5   258   10.3 
2025-06-23 00:00 UT   21 25 21.6   -21 47 50     1.268    2.107  134.3   20.2   258   10.3 
2025-06-24 00:00 UT   21 25 16.4   -21 47 52     1.261    2.108  135.2   19.9   258   10.2 
2025-06-25 00:00 UT   21 25 09.1   -21 48 00     1.254    2.108  136.2   19.5   258   10.2 
2025-06-26 00:00 UT   21 24 59.6   -21 48 15     1.247    2.109  137.2   19.1   259   10.2 
2025-06-27 00:00 UT   21 24 48.0   -21 48 35     1.240    2.110  138.2   18.7   259   10.2 
2025-06-28 00:00 UT   21 24 34.3   -21 49 01     1.234    2.110  139.2   18.4   259   10.2 
2025-06-29 00:00 UT   21 24 18.4   -21 49 32     1.227    2.111  140.2   18.0   259   10.1 
2025-06-30 00:00 UT   21 24 00.4   -21 50 09     1.221    2.111  141.2   17.6   260   10.1 
2025-07-01 00:00 UT   21 23 40.4   -21 50 50     1.215    2.112  142.2   17.2   260   10.1 
2025-07-02 00:00 UT   21 23 18.2   -21 51 37     1.209    2.113  143.2   16.7   260   10.1 
2025-07-03 00:00 UT   21 22 54.0   -21 52 28     1.203    2.113  144.2   16.3   261   10.0 
2025-07-04 00:00 UT   21 22 27.8   -21 53 23     1.197    2.114  145.3   15.9   261   10.0 
2025-07-05 00:00 UT   21 21 59.5   -21 54 22     1.192    2.115  146.3   15.5   261   10.0 
2025-07-06 00:00 UT   21 21 29.3   -21 55 25     1.187    2.115  147.4   15.0   262   10.0 
2025-07-07 00:00 UT   21 20 57.1   -21 56 32     1.182    2.116  148.4   14.6   262    9.9 
2025-07-08 00:00 UT   21 20 23.0   -21 57 42     1.177    2.117  149.5   14.1   263    9.9 
2025-07-09 00:00 UT   21 19 47.0   -21 58 55     1.172    2.117  150.6   13.6   263    9.9 
2025-07-10 00:00 UT   21 19 09.1   -22 00 10     1.168    2.118  151.7   13.2   264    9.9 
2025-07-11 00:00 UT   21 18 29.4   -22 01 28     1.163    2.119  152.7   12.7   264    9.8 
2025-07-12 00:00 UT   21 17 47.9   -22 02 48     1.159    2.119  153.8   12.2   265    9.8 
2025-07-13 00:00 UT   21 17 04.7   -22 04 10     1.155    2.120  154.9   11.7   265    9.8 
2025-07-14 00:00 UT   21 16 19.8   -22 05 33     1.151    2.121  156.0   11.2   266    9.8 
2025-07-15 00:00 UT   21 15 33.3   -22 06 57     1.148    2.122  157.1   10.7   267    9.7 
2025-07-16 00:00 UT   21 14 45.2   -22 08 21     1.145    2.122  158.2   10.2   267    9.7 
2025-07-17 00:00 UT   21 13 55.5   -22 09 47     1.142    2.123  159.3    9.7   268    9.7 
2025-07-18 00:00 UT   21 13 04.4   -22 11 12     1.139    2.124  160.4    9.2   269    9.7 
2025-07-19 00:00 UT   21 12 11.9   -22 12 37     1.136    2.125  161.6    8.7   270    9.6 
2025-07-20 00:00 UT   21 11 18.1   -22 14 01     1.134    2.125  162.7    8.2   272    9.6 

    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.