(115) Thyra
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	13 Jul 2025	10.9	2.494 AU	1.481 AU	19h36m	-27°39'	174.0°	2.4°
Today	8 Aug 2025	11.3	2.442 AU	1.513 AU	19h08m	-26°18'	149.7°	12.1°

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 Thyra are:

            e (Eccentricity)                : 0.1924085
            a (Semimajor axis)              : 2.3803080
            i (Inclination)                 : 11.58661
            Ω (Longitude of ascending node) : 308.75115
            ω (Argument of perihelion)      : 96.96771
            M (Mean anomaly)                : 247.63858
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 225.86233
            B (Latitude of perihelion)      : 11.49987
            P (Orbital period in years)     : 3.67            
        

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
2025-08-08 00:00 UT   19 08 16.9   -26 18 03     1.513    2.442  149.7   12.1    77   11.3 
2025-08-08 08:44 UT   19 07 58.5   -26 16 28     1.514    2.442  149.3   12.2    77   11.3 
2025-08-09 00:00 UT   19 07 26.7   -26 13 42     1.517    2.440  148.6   12.5    77   11.3 
2025-08-10 00:00 UT   19 06 38.2   -26 09 18     1.522    2.438  147.5   12.9    78   11.4 
2025-08-11 00:00 UT   19 05 51.4   -26 04 50     1.527    2.436  146.4   13.3    78   11.4 
2025-08-12 00:00 UT   19 05 06.4   -26 00 19     1.532    2.434  145.3   13.7    79   11.4 
2025-08-13 00:00 UT   19 04 23.3   -25 55 46     1.537    2.432  144.2   14.1    79   11.4 
2025-08-14 00:00 UT   19 03 42.0   -25 51 09     1.543    2.430  143.1   14.5    79   11.4 
2025-08-15 00:00 UT   19 03 02.7   -25 46 30     1.548    2.428  142.0   14.9    80   11.5 
2025-08-16 00:00 UT   19 02 25.2   -25 41 48     1.554    2.426  140.9   15.3    80   11.5 
2025-08-17 00:00 UT   19 01 49.7   -25 37 05     1.560    2.424  139.8   15.6    80   11.5 
2025-08-18 00:00 UT   19 01 16.2   -25 32 19     1.567    2.422  138.8   16.0    81   11.5 
2025-08-19 00:00 UT   19 00 44.6   -25 27 31     1.573    2.419  137.7   16.4    81   11.5 
2025-08-20 00:00 UT   19 00 15.1   -25 22 42     1.580    2.417  136.6   16.7    81   11.6 
2025-08-21 00:00 UT   18 59 47.6   -25 17 51     1.586    2.415  135.6   17.0    81   11.6 
2025-08-22 00:00 UT   18 59 22.1   -25 12 59     1.593    2.413  134.5   17.4    82   11.6 
2025-08-23 00:00 UT   18 58 58.7   -25 08 06     1.601    2.411  133.5   17.7    82   11.6 
2025-08-24 00:00 UT   18 58 37.4   -25 03 11     1.608    2.409  132.5   18.0    82   11.6 
2025-08-25 00:00 UT   18 58 18.2   -24 58 16     1.615    2.407  131.4   18.4    82   11.7 
2025-08-26 00:00 UT   18 58 01.0   -24 53 19     1.623    2.405  130.4   18.7    82   11.7 
2025-08-27 00:00 UT   18 57 45.9   -24 48 22     1.631    2.402  129.4   19.0    83   11.7 
2025-08-28 00:00 UT   18 57 32.9   -24 43 25     1.638    2.400  128.4   19.3    83   11.7 
2025-08-29 00:00 UT   18 57 21.9   -24 38 26     1.646    2.398  127.4   19.5    83   11.7 
2025-08-30 00:00 UT   18 57 13.1   -24 33 28     1.655    2.396  126.4   19.8    83   11.7 
2025-08-31 00:00 UT   18 57 06.2   -24 28 29     1.663    2.394  125.5   20.1    83   11.8 
2025-09-01 00:00 UT   18 57 01.5   -24 23 30     1.671    2.392  124.5   20.4    83   11.8 
2025-09-02 00:00 UT   18 56 58.7   -24 18 30     1.680    2.390  123.5   20.6    83   11.8 
2025-09-03 00:00 UT   18 56 58.0   -24 13 30     1.688    2.388  122.5   20.9    83   11.8 
2025-09-04 00:00 UT   18 56 59.3   -24 08 31     1.697    2.385  121.6   21.1    84   11.8 
2025-09-05 00:00 UT   18 57 02.6   -24 03 31     1.706    2.383  120.6   21.3    84   11.8 
2025-09-06 00:00 UT   18 57 07.9   -23 58 31     1.715    2.381  119.7   21.6    84   11.9 
2025-09-07 00:00 UT   18 57 15.1   -23 53 32     1.724    2.379  118.8   21.8    84   11.9 

    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.