(51) Nemausa
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	29 Jan 2026	12.6	2.261 AU	2.616 AU	16h40m	-15°13'	58.4°	21.8°
Opposition	21 Jun 2026	10.8	2.360 AU	1.370 AU	17h59m	-06°07'	162.7°	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 Nemausa are:

            e (Eccentricity)                : 0.0659272
            a (Semimajor axis)              : 2.3655479
            i (Inclination)                 : 9.97295
            Ω (Longitude of ascending node) : 175.87969
            ω (Argument of perihelion)      : 2.28194
            M (Mean anomaly)                : 26.54936
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 178.12718
            B (Latitude of perihelion)      : 0.39509
            P (Orbital period in years)     : 3.64            
        

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
2026-01-29 00:00 UT   16 40 02.5   -15 13 04     2.616    2.261   58.4   21.8   282   12.6 
2026-01-29 10:28 UT   16 40 50.2   -15 13 13     2.612    2.262   58.6   21.8   282   12.6 
2026-01-30 00:00 UT   16 41 51.7   -15 13 22     2.607    2.262   59.0   21.9   282   12.6 
2026-01-31 00:00 UT   16 43 40.5   -15 13 32     2.597    2.262   59.5   22.0   282   12.6 
2026-02-01 00:00 UT   16 45 28.8   -15 13 36     2.587    2.263   60.1   22.2   281   12.6 
2026-02-02 00:00 UT   16 47 16.7   -15 13 33     2.577    2.264   60.7   22.3   281   12.6 
2026-02-03 00:00 UT   16 49 04.1   -15 13 22     2.567    2.264   61.3   22.4   281   12.6 
2026-02-04 00:00 UT   16 50 51.0   -15 13 05     2.556    2.265   61.9   22.6   281   12.6 
2026-02-05 00:00 UT   16 52 37.4   -15 12 40     2.546    2.265   62.4   22.7   280   12.6 
2026-02-06 00:00 UT   16 54 23.3   -15 12 09     2.536    2.266   63.0   22.8   280   12.6 
2026-02-07 00:00 UT   16 56 08.6   -15 11 30     2.526    2.267   63.6   22.9   280   12.6 
2026-02-08 00:00 UT   16 57 53.5   -15 10 45     2.515    2.267   64.2   23.1   280   12.6 
2026-02-09 00:00 UT   16 59 37.7   -15 09 53     2.505    2.268   64.8   23.2   280   12.6 
2026-02-10 00:00 UT   17 01 21.5   -15 08 53     2.494    2.268   65.4   23.3   279   12.6 
2026-02-11 00:00 UT   17 03 04.6   -15 07 47     2.484    2.269   66.0   23.4   279   12.6 
2026-02-12 00:00 UT   17 04 47.2   -15 06 34     2.473    2.270   66.6   23.5   279   12.6 
2026-02-13 00:00 UT   17 06 29.1   -15 05 15     2.463    2.270   67.2   23.6   279   12.6 
2026-02-14 00:00 UT   17 08 10.5   -15 03 48     2.452    2.271   67.8   23.7   278   12.6 
2026-02-15 00:00 UT   17 09 51.2   -15 02 15     2.442    2.271   68.4   23.8   278   12.6 
2026-02-16 00:00 UT   17 11 31.2   -15 00 35     2.431    2.272   69.0   23.9   278   12.6 
2026-02-17 00:00 UT   17 13 10.7   -14 58 48     2.420    2.273   69.6   24.0   278   12.6 
2026-02-18 00:00 UT   17 14 49.4   -14 56 54     2.409    2.273   70.2   24.1   277   12.6 

    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.