(115) Thyra
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	25 Jun 2025	11.4	2.530 AU	1.565 AU	19h56m	-27°57'	156.6°	9.2°
Opposition	13 Jul 2025	10.9	2.494 AU	1.481 AU	19h36m	-27°39'	174.0°	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 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)      : 96.96772
            M (Mean anomaly)                : 247.63857
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 225.86234
            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
2025-06-25 00:00 UT   19 56 29.2   -27 57 36     1.565    2.530  156.6    9.2   275   11.4 
2025-06-25 07:40 UT   19 56 11.5   -27 57 30     1.562    2.529  157.0    9.0   276   11.4 
2025-06-26 00:00 UT   19 55 33.5   -27 57 15     1.558    2.528  157.8    8.8   276   11.3 
2025-06-27 00:00 UT   19 54 36.4   -27 56 51     1.551    2.526  158.9    8.3   277   11.3 
2025-06-28 00:00 UT   19 53 37.8   -27 56 23     1.545    2.524  160.0    7.9   279   11.3 
2025-06-29 00:00 UT   19 52 37.9   -27 55 52     1.539    2.522  161.1    7.5   280   11.2 
2025-06-30 00:00 UT   19 51 36.7   -27 55 17     1.533    2.521  162.2    7.1   281   11.2 
2025-07-01 00:00 UT   19 50 34.2   -27 54 37     1.528    2.519  163.3    6.7   283   11.2 
2025-07-02 00:00 UT   19 49 30.5   -27 53 54     1.523    2.517  164.4    6.2   284   11.2 
2025-07-03 00:00 UT   19 48 25.8   -27 53 05     1.518    2.515  165.5    5.8   286   11.1 
2025-07-04 00:00 UT   19 47 19.9   -27 52 12     1.513    2.513  166.5    5.4   289   11.1 
2025-07-05 00:00 UT   19 46 13.1   -27 51 14     1.508    2.511  167.6    5.0   291   11.1 
2025-07-06 00:00 UT   19 45 05.4   -27 50 10     1.504    2.509  168.6    4.6   294   11.0 
2025-07-07 00:00 UT   19 43 56.9   -27 49 01     1.500    2.507  169.6    4.2   298   11.0 
2025-07-08 00:00 UT   19 42 47.6   -27 47 46     1.497    2.505  170.6    3.8   302   11.0 
2025-07-09 00:00 UT   19 41 37.6   -27 46 26     1.493    2.503  171.5    3.4   308   11.0 
2025-07-10 00:00 UT   19 40 27.1   -27 44 60     1.490    2.501  172.3    3.1   314   10.9 
2025-07-11 00:00 UT   19 39 16.0   -27 43 27     1.487    2.499  173.0    2.8   322   10.9 
2025-07-12 00:00 UT   19 38 04.5   -27 41 48     1.484    2.497  173.6    2.6   331   10.9 
2025-07-13 00:00 UT   19 36 52.6   -27 40 04     1.482    2.495  173.9    2.5   342   10.9 
2025-07-14 00:00 UT   19 35 40.4   -27 38 12     1.480    2.493  174.1    2.4   354   10.9 
2025-07-15 00:00 UT   19 34 28.0   -27 36 15     1.478    2.491  173.9    2.5     5   10.9 
2025-07-16 00:00 UT   19 33 15.6   -27 34 10     1.477    2.489  173.6    2.6    16   10.9 
2025-07-17 00:00 UT   19 32 03.1   -27 31 60     1.475    2.487  173.1    2.8    26   10.9 
2025-07-18 00:00 UT   19 30 50.7   -27 29 42     1.474    2.485  172.4    3.1    34   10.9 
2025-07-19 00:00 UT   19 29 38.4   -27 27 18     1.473    2.483  171.6    3.4    40   10.9 
2025-07-20 00:00 UT   19 28 26.4   -27 24 48     1.473    2.481  170.7    3.8    46   10.9 
2025-07-21 00:00 UT   19 27 14.7   -27 22 11     1.473    2.479  169.7    4.2    50   10.9 
2025-07-22 00:00 UT   19 26 03.4   -27 19 27     1.473    2.477  168.7    4.6    54   11.0 
2025-07-23 00:00 UT   19 24 52.7   -27 16 37     1.473    2.475  167.6    5.0    57   11.0 
2025-07-24 00:00 UT   19 23 42.5   -27 13 40     1.474    2.473  166.6    5.5    60   11.0 
2025-07-25 00:00 UT   19 22 33.1   -27 10 37     1.475    2.471  165.5    5.9    62   11.0 

    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.