(375) Ursula
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	20 Jul 2025	11.5	2.825 AU	1.833 AU	20h14m	-35°57'	164.3°	5.6°
Today	18 Sep 2025	12.4	2.810 AU	2.215 AU	19h40m	-30°34'	116.4°	18.7°

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 Ursula are:

            e (Eccentricity)                : 0.1023705
            a (Semimajor axis)              : 3.1274075
            i (Inclination)                 : 15.94056
            Ω (Longitude of ascending node) : 336.38214
            ω (Argument of perihelion)      : 341.42449
            M (Mean anomaly)                : 4.78044
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 318.47448
            B (Latitude of perihelion)      : -5.01909
            P (Orbital period in years)     : 5.53            
        

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
2025-09-18 00:00 UT   19 40 38.0   -30 34 56     2.215    2.810  116.4   18.7    76   12.4 
2025-09-18 20:19 UT   19 40 48.7   -30 28 30     2.225    2.810  115.7   18.8    76   12.4 
2025-09-19 00:00 UT   19 40 50.7   -30 27 19     2.227    2.810  115.5   18.8    76   12.4 
2025-09-20 00:00 UT   19 41 05.0   -30 19 42     2.238    2.810  114.6   19.0    76   12.4 
2025-09-21 00:00 UT   19 41 20.9   -30 12 03     2.250    2.809  113.8   19.1    76   12.5 
2025-09-22 00:00 UT   19 41 38.3   -30 04 23     2.262    2.809  112.9   19.2    76   12.5 
2025-09-23 00:00 UT   19 41 57.3   -29 56 43     2.275    2.809  112.0   19.3    77   12.5 
2025-09-24 00:00 UT   19 42 17.8   -29 49 02     2.287    2.809  111.2   19.5    77   12.5 
2025-09-25 00:00 UT   19 42 39.7   -29 41 20     2.299    2.809  110.3   19.6    77   12.5 
2025-09-26 00:00 UT   19 43 03.2   -29 33 37     2.311    2.809  109.4   19.7    77   12.5 
2025-09-27 00:00 UT   19 43 28.1   -29 25 54     2.324    2.809  108.6   19.8    77   12.6 
2025-09-28 00:00 UT   19 43 54.4   -29 18 10     2.336    2.809  107.7   19.9    77   12.6 
2025-09-29 00:00 UT   19 44 22.1   -29 10 26     2.349    2.809  106.9   20.0    77   12.6 
2025-09-30 00:00 UT   19 44 51.3   -29 02 41     2.362    2.808  106.0   20.0    78   12.6 
2025-10-01 00:00 UT   19 45 21.8   -28 54 56     2.374    2.808  105.2   20.1    78   12.6 
2025-10-02 00:00 UT   19 45 53.6   -28 47 10     2.387    2.808  104.4   20.2    78   12.6 
2025-10-03 00:00 UT   19 46 26.8   -28 39 24     2.400    2.808  103.5   20.3    78   12.6 
2025-10-04 00:00 UT   19 47 01.2   -28 31 37     2.413    2.808  102.7   20.3    78   12.7 
2025-10-05 00:00 UT   19 47 37.0   -28 23 50     2.426    2.808  101.9   20.4    78   12.7 
2025-10-06 00:00 UT   19 48 14.0   -28 16 02     2.439    2.808  101.1   20.5    78   12.7 
2025-10-07 00:00 UT   19 48 52.2   -28 08 14     2.452    2.808  100.3   20.5    78   12.7 
2025-10-08 00:00 UT   19 49 31.7   -28 00 26     2.465    2.808   99.5   20.6    78   12.7 
2025-10-09 00:00 UT   19 50 12.3   -27 52 37     2.478    2.808   98.6   20.6    78   12.7 
2025-10-10 00:00 UT   19 50 54.1   -27 44 47     2.491    2.808   97.8   20.6    78   12.7 
2025-10-11 00:00 UT   19 51 37.1   -27 36 57     2.505    2.808   97.0   20.7    78   12.7 
2025-10-12 00:00 UT   19 52 21.2   -27 29 07     2.518    2.808   96.2   20.7    78   12.8 
2025-10-13 00:00 UT   19 53 06.4   -27 21 16     2.531    2.808   95.5   20.7    78   12.8 
2025-10-14 00:00 UT   19 53 52.7   -27 13 24     2.544    2.807   94.7   20.7    78   12.8 
2025-10-15 00:00 UT   19 54 40.1   -27 05 32     2.558    2.807   93.9   20.8    79   12.8 
2025-10-16 00:00 UT   19 55 28.6   -26 57 39     2.571    2.807   93.1   20.8    79   12.8 
2025-10-17 00:00 UT   19 56 18.1   -26 49 46     2.585    2.807   92.3   20.8    79   12.8 
2025-10-18 00:00 UT   19 57 08.7   -26 41 52     2.598    2.807   91.5   20.8    79   12.8 

    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.