(42) Isis
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	3 Mar 2026	12.9	2.846 AU	2.417 AU	05h48m	+27°21'	105.5°	19.6°
Opposition	13 Mar 2027	11.8	2.869 AU	1.892 AU	11h54m	+14°46'	167.0°	4.5°

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 Isis are:

            e (Eccentricity)                : 0.2219265
            a (Semimajor axis)              : 2.4437922
            i (Inclination)                 : 8.51002
            Ω (Longitude of ascending node) : 84.16707
            ω (Argument of perihelion)      : 237.41146
            M (Mean anomaly)                : 103.03901
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 141.29001
            B (Latitude of perihelion)      : -7.16251
            P (Orbital period in years)     : 3.82            
        

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
2026-03-03 00:00 UT   05 48 57.3   +27 21 38     2.417    2.846  105.5   19.6    90   12.9 
2026-03-03 23:02 UT   05 49 23.6   +27 22 09     2.431    2.847  104.6   19.7    90   12.9 
2026-03-04 00:00 UT   05 49 24.7   +27 22 11     2.432    2.847  104.6   19.7    90   12.9 
2026-03-05 00:00 UT   05 49 53.6   +27 22 43     2.447    2.849  103.7   19.8    90   12.9 
2026-03-06 00:00 UT   05 50 23.8   +27 23 14     2.462    2.850  102.8   19.8    90   12.9 
2026-03-07 00:00 UT   05 50 55.5   +27 23 45     2.477    2.852  101.9   19.9    90   12.9 
2026-03-08 00:00 UT   05 51 28.4   +27 24 14     2.492    2.853  101.0   20.0    90   13.0 
2026-03-09 00:00 UT   05 52 02.8   +27 24 43     2.507    2.854  100.1   20.0    90   13.0 
2026-03-10 00:00 UT   05 52 38.5   +27 25 12     2.522    2.856   99.3   20.1    90   13.0 
2026-03-11 00:00 UT   05 53 15.4   +27 25 39     2.537    2.857   98.4   20.1    90   13.0 
2026-03-12 00:00 UT   05 53 53.7   +27 26 05     2.553    2.858   97.6   20.2    90   13.0 
2026-03-13 00:00 UT   05 54 33.2   +27 26 30     2.568    2.860   96.7   20.2    90   13.0 
2026-03-14 00:00 UT   05 55 14.0   +27 26 55     2.583    2.861   95.9   20.2    90   13.0 
2026-03-15 00:00 UT   05 55 56.0   +27 27 18     2.598    2.862   95.0   20.2    90   13.1 
2026-03-16 00:00 UT   05 56 39.2   +27 27 40     2.614    2.864   94.2   20.3    90   13.1 
2026-03-17 00:00 UT   05 57 23.6   +27 28 02     2.629    2.865   93.4   20.3    90   13.1 
2026-03-18 00:00 UT   05 58 09.2   +27 28 22     2.644    2.866   92.5   20.3    90   13.1 
2026-03-19 00:00 UT   05 58 56.0   +27 28 41     2.660    2.868   91.7   20.3    90   13.1 
2026-03-20 00:00 UT   05 59 43.9   +27 28 58     2.675    2.869   90.9   20.3    90   13.1 
2026-03-21 00:00 UT   06 00 32.9   +27 29 15     2.690    2.870   90.1   20.3    90   13.1 
2026-03-22 00:00 UT   06 01 22.9   +27 29 30     2.705    2.872   89.3   20.3    90   13.2 
2026-03-23 00:00 UT   06 02 14.1   +27 29 43     2.721    2.873   88.5   20.3    90   13.2 
2026-03-24 00:00 UT   06 03 06.3   +27 29 56     2.736    2.874   87.7   20.3    90   13.2 
2026-03-25 00:00 UT   06 03 59.6   +27 30 07     2.751    2.875   86.9   20.3    90   13.2 
2026-03-26 00:00 UT   06 04 53.9   +27 30 16     2.767    2.877   86.1   20.2    90   13.2 
2026-03-27 00:00 UT   06 05 49.1   +27 30 24     2.782    2.878   85.3   20.2    90   13.2 
2026-03-28 00:00 UT   06 06 45.4   +27 30 30     2.797    2.879   84.6   20.2    90   13.2 
2026-03-29 00:00 UT   06 07 42.6   +27 30 35     2.812    2.880   83.8   20.2    90   13.2 
2026-03-30 00:00 UT   06 08 40.7   +27 30 38     2.827    2.882   83.0   20.1    90   13.3 
2026-03-31 00:00 UT   06 09 39.7   +27 30 40     2.842    2.883   82.2   20.1    90   13.3 
2026-04-01 00:00 UT   06 10 39.6   +27 30 39     2.857    2.884   81.5   20.0    90   13.3 
2026-04-02 00:00 UT   06 11 40.4   +27 30 37     2.873    2.885   80.7   20.0    90   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.