(182) Elsa
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	15 Jul 2026	12.2	2.608 AU	1.592 AU	19h41m	-21°44'	179.1°	0.4°
Today	8 Sep 2026	13.4	2.508 AU	1.842 AU	19h07m	-23°24'	120.4°	20.3°

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 Elsa are:

            e (Eccentricity)                : 0.1863813
            a (Semimajor axis)              : 2.4163026
            i (Inclination)                 : 2.00559
            Ω (Longitude of ascending node) : 107.16320
            ω (Argument of perihelion)      : 310.58148
            M (Mean anomaly)                : 244.86841
            Epoch                           : 2026 Jun 09

            L (Longitude of perihelion)     : 57.76203
            B (Latitude of perihelion)      : -1.52308
            P (Orbital period in years)     : 3.76            
        

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
2026-09-08 00:00 UT   19 07 22.8   -23 24 37     1.842    2.508  120.4   20.3    83   13.4 
2026-09-08 02:33 UT   19 07 23.4   -23 24 38     1.843    2.507  120.3   20.3    83   13.4 
2026-09-09 00:00 UT   19 07 29.6   -23 24 47     1.852    2.506  119.5   20.5    83   13.4 
2026-09-10 00:00 UT   19 07 38.3   -23 24 53     1.861    2.504  118.5   20.7    83   13.4 
2026-09-11 00:00 UT   19 07 48.9   -23 24 55     1.871    2.502  117.6   20.9    83   13.4 
2026-09-12 00:00 UT   19 08 01.2   -23 24 55     1.881    2.500  116.7   21.1    83   13.5 
2026-09-13 00:00 UT   19 08 15.3   -23 24 51     1.890    2.498  115.8   21.3    83   13.5 
2026-09-14 00:00 UT   19 08 31.3   -23 24 43     1.900    2.496  114.8   21.5    83   13.5 
2026-09-15 00:00 UT   19 08 49.0   -23 24 32     1.910    2.494  113.9   21.6    83   13.5 
2026-09-16 00:00 UT   19 09 08.4   -23 24 18     1.920    2.492  113.0   21.8    83   13.5 
2026-09-17 00:00 UT   19 09 29.6   -23 24 00     1.931    2.490  112.1   22.0    83   13.5 
2026-09-18 00:00 UT   19 09 52.6   -23 23 39     1.941    2.488  111.3   22.1    83   13.5 
2026-09-19 00:00 UT   19 10 17.2   -23 23 14     1.951    2.486  110.4   22.3    83   13.6 
2026-09-20 00:00 UT   19 10 43.5   -23 22 46     1.961    2.484  109.5   22.4    83   13.6 
2026-09-21 00:00 UT   19 11 11.5   -23 22 15     1.972    2.482  108.6   22.5    83   13.6 
2026-09-22 00:00 UT   19 11 41.1   -23 21 40     1.982    2.480  107.8   22.7    83   13.6 
2026-09-23 00:00 UT   19 12 12.4   -23 21 02     1.993    2.478  106.9   22.8    83   13.6 
2026-09-24 00:00 UT   19 12 45.3   -23 20 20     2.003    2.476  106.1   22.9    83   13.6 
2026-09-25 00:00 UT   19 13 19.7   -23 19 35     2.014    2.474  105.2   23.0    83   13.6 
2026-09-26 00:00 UT   19 13 55.7   -23 18 46     2.025    2.472  104.4   23.1    83   13.7 
2026-09-27 00:00 UT   19 14 33.3   -23 17 54     2.035    2.470  103.5   23.2    82   13.7 
2026-09-28 00:00 UT   19 15 12.4   -23 16 58     2.046    2.468  102.7   23.3    82   13.7 
2026-09-29 00:00 UT   19 15 53.0   -23 15 59     2.057    2.466  101.9   23.4    82   13.7 
2026-09-30 00:00 UT   19 16 35.1   -23 14 56     2.068    2.464  101.1   23.5    82   13.7 
2026-10-01 00:00 UT   19 17 18.6   -23 13 50     2.078    2.462  100.2   23.6    82   13.7 
2026-10-02 00:00 UT   19 18 03.6   -23 12 40     2.089    2.460   99.4   23.7    82   13.7 
2026-10-03 00:00 UT   19 18 50.1   -23 11 26     2.100    2.458   98.6   23.7    82   13.7 
2026-10-04 00:00 UT   19 19 37.9   -23 10 08     2.111    2.456   97.8   23.8    82   13.8 
2026-10-05 00:00 UT   19 20 27.1   -23 08 47     2.122    2.454   97.0   23.9    82   13.8 
2026-10-06 00:00 UT   19 21 17.8   -23 07 22     2.133    2.452   96.2   23.9    82   13.8 
2026-10-07 00:00 UT   19 22 09.8   -23 05 52     2.144    2.450   95.5   24.0    82   13.8 
2026-10-08 00:00 UT   19 23 03.1   -23 04 20     2.155    2.448   94.7   24.0    82   13.8 

    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.