(97) Klotho
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	14 Mar 2025	11.3	2.691 AU	1.700 AU	11h49m	+06°29'	175.0°	1.8°
Today	9 May 2025	12.7	2.835 AU	2.206 AU	11h24m	+11°08'	118.9°	18.2°

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 Klotho are:

            e (Eccentricity)                : 0.2577416
            a (Semimajor axis)              : 2.6678835
            i (Inclination)                 : 11.77626
            Ω (Longitude of ascending node) : 159.59059
            ω (Argument of perihelion)      : 268.40122
            M (Mean anomaly)                : 88.85203
            Epoch                           : 2025 May 05

            L (Longitude of perihelion)     : 247.95745
            B (Latitude of perihelion)      : -11.77161
            P (Orbital period in years)     : 4.36            
        

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
2025-05-09 00:00 UT   11 24 28.0   +11 08 60     2.206    2.835  118.9   18.2   117   12.7 
2025-05-09 06:02 UT   11 24 29.9   +11 08 55     2.209    2.836  118.7   18.2   117   12.7 
2025-05-10 00:00 UT   11 24 36.2   +11 08 39     2.220    2.838  118.0   18.3   117   12.8 
2025-05-11 00:00 UT   11 24 45.7   +11 08 08     2.234    2.840  117.1   18.5   117   12.8 
2025-05-12 00:00 UT   11 24 56.4   +11 07 28     2.248    2.843  116.2   18.6   117   12.8 
2025-05-13 00:00 UT   11 25 08.3   +11 06 38     2.263    2.845  115.3   18.7   117   12.8 
2025-05-14 00:00 UT   11 25 21.5   +11 05 38     2.278    2.848  114.4   18.9   116   12.8 
2025-05-15 00:00 UT   11 25 35.9   +11 04 29     2.292    2.850  113.5   19.0   116   12.9 
2025-05-16 00:00 UT   11 25 51.4   +11 03 11     2.307    2.852  112.6   19.1   116   12.9 
2025-05-17 00:00 UT   11 26 08.2   +11 01 44     2.322    2.855  111.7   19.2   116   12.9 
2025-05-18 00:00 UT   11 26 26.1   +11 00 08     2.337    2.857  110.8   19.3   116   12.9 
2025-05-19 00:00 UT   11 26 45.1   +10 58 24     2.352    2.860  110.0   19.4   116   12.9 
2025-05-20 00:00 UT   11 27 05.3   +10 56 31     2.367    2.862  109.1   19.5   116   13.0 
2025-05-21 00:00 UT   11 27 26.6   +10 54 29     2.382    2.865  108.2   19.6   116   13.0 
2025-05-22 00:00 UT   11 27 49.0   +10 52 19     2.397    2.867  107.4   19.7   115   13.0 
2025-05-23 00:00 UT   11 28 12.5   +10 50 01     2.412    2.869  106.5   19.8   115   13.0 
2025-05-24 00:00 UT   11 28 37.0   +10 47 35     2.428    2.872  105.7   19.8   115   13.0 
2025-05-25 00:00 UT   11 29 02.7   +10 45 01     2.443    2.874  104.8   19.9   115   13.0 
2025-05-26 00:00 UT   11 29 29.3   +10 42 19     2.458    2.877  104.0   20.0   115   13.1 
2025-05-27 00:00 UT   11 29 57.1   +10 39 29     2.474    2.879  103.2   20.0   115   13.1 
2025-05-28 00:00 UT   11 30 25.8   +10 36 32     2.489    2.881  102.3   20.1   115   13.1 
2025-05-29 00:00 UT   11 30 55.6   +10 33 28     2.505    2.884  101.5   20.1   115   13.1 
2025-05-30 00:00 UT   11 31 26.3   +10 30 16     2.521    2.886  100.7   20.2   115   13.1 
2025-05-31 00:00 UT   11 31 58.0   +10 26 57     2.536    2.889   99.9   20.2   115   13.2 
2025-06-01 00:00 UT   11 32 30.7   +10 23 32     2.552    2.891   99.1   20.3   115   13.2 
2025-06-02 00:00 UT   11 33 04.3   +10 19 59     2.568    2.893   98.3   20.3   114   13.2 
2025-06-03 00:00 UT   11 33 38.8   +10 16 20     2.583    2.896   97.5   20.3   114   13.2 
2025-06-04 00:00 UT   11 34 14.3   +10 12 34     2.599    2.898   96.7   20.3   114   13.2 
2025-06-05 00:00 UT   11 34 50.6   +10 08 42     2.615    2.900   95.9   20.4   114   13.2 
2025-06-06 00:00 UT   11 35 27.8   +10 04 44     2.630    2.903   95.1   20.4   114   13.2 
2025-06-07 00:00 UT   11 36 05.9   +10 00 40     2.646    2.905   94.3   20.4   114   13.3 
2025-06-08 00:00 UT   11 36 44.8   +09 56 29     2.662    2.907   93.6   20.4   114   13.3 

    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.