(61) Danae
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	13 Dec 2025	12.8	2.518 AU	2.464 AU	22h39m	+02°28'	81.7°	22.8°
Opposition	24 Dec 2026	12.3	3.035 AU	2.107 AU	06h16m	+46°47'	156.6°	7.4°

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 Danae are:

            e (Eccentricity)                : 0.1637877
            a (Semimajor axis)              : 2.9848133
            i (Inclination)                 : 18.20590
            Ω (Longitude of ascending node) : 333.54323
            ω (Argument of perihelion)      : 12.88873
            M (Mean anomaly)                : 10.40468
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 345.80676
            B (Latitude of perihelion)      : 3.99622
            P (Orbital period in years)     : 5.16            
        

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.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-12-13 00:00 UT   22 39 54.9   +02 28 33     2.464    2.518   81.7   22.8    66   12.8 
2025-12-13 15:54 UT   22 40 38.4   +02 33 49     2.473    2.519   81.3   22.7    66   12.8 
2025-12-14 00:00 UT   22 41 00.6   +02 36 32     2.477    2.519   81.0   22.7    66   12.8 
2025-12-15 00:00 UT   22 42 07.2   +02 44 34     2.490    2.520   80.3   22.7    66   12.8 
2025-12-16 00:00 UT   22 43 14.5   +02 52 42     2.503    2.520   79.7   22.6    66   12.8 
2025-12-17 00:00 UT   22 44 22.5   +03 00 53     2.517    2.521   79.0   22.5    66   12.8 
2025-12-18 00:00 UT   22 45 31.2   +03 09 08     2.530    2.521   78.3   22.5    65   12.8 
2025-12-19 00:00 UT   22 46 40.6   +03 17 28     2.543    2.522   77.6   22.4    65   12.8 
2025-12-20 00:00 UT   22 47 50.7   +03 25 52     2.556    2.523   76.9   22.3    65   12.8 
2025-12-21 00:00 UT   22 49 01.5   +03 34 20     2.569    2.523   76.2   22.3    65   12.9 
2025-12-22 00:00 UT   22 50 12.9   +03 42 52     2.582    2.524   75.6   22.2    65   12.9 
2025-12-23 00:00 UT   22 51 25.0   +03 51 28     2.595    2.524   74.9   22.1    64   12.9 
2025-12-24 00:00 UT   22 52 37.7   +04 00 08     2.608    2.525   74.2   22.0    64   12.9 
2025-12-25 00:00 UT   22 53 51.1   +04 08 52     2.621    2.526   73.6   21.9    64   12.9 
2025-12-26 00:00 UT   22 55 05.0   +04 17 40     2.634    2.526   72.9   21.8    64   12.9 
2025-12-27 00:00 UT   22 56 19.6   +04 26 32     2.647    2.527   72.3   21.8    64   12.9 
2025-12-28 00:00 UT   22 57 34.7   +04 35 28     2.660    2.528   71.6   21.7    64   12.9 
2025-12-29 00:00 UT   22 58 50.4   +04 44 27     2.672    2.529   71.0   21.6    63   12.9 
2025-12-30 00:00 UT   23 00 06.7   +04 53 30     2.685    2.529   70.3   21.5    63   12.9 
2025-12-31 00:00 UT   23 01 23.5   +05 02 37     2.698    2.530   69.7   21.4    63   12.9 
2026-01-01 00:00 UT   23 02 40.8   +05 11 47     2.710    2.531   69.0   21.3    63   13.0 
2026-01-02 00:00 UT   23 03 58.7   +05 21 01     2.723    2.531   68.4   21.2    63   13.0 
2026-01-03 00:00 UT   23 05 17.1   +05 30 19     2.735    2.532   67.7   21.1    63   13.0 
2026-01-04 00:00 UT   23 06 36.0   +05 39 39     2.748    2.533   67.1   21.0    62   13.0 
2026-01-05 00:00 UT   23 07 55.4   +05 49 04     2.760    2.534   66.5   20.8    62   13.0 
2026-01-06 00:00 UT   23 09 15.4   +05 58 31     2.773    2.534   65.8   20.7    62   13.0 
2026-01-07 00:00 UT   23 10 35.7   +06 08 02     2.785    2.535   65.2   20.6    62   13.0 

    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.