(202) Chryseis
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	16 Jan 2026	13.2	3.010 AU	2.745 AU	02h10m	+02°53'	95.9°	19.0°
Opposition	31 Jan 2027	11.2	2.746 AU	1.761 AU	08h55m	+16°02'	178.5°	0.5°

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 Chryseis are:

            e (Eccentricity)                : 0.1051399
            a (Semimajor axis)              : 3.0675907
            i (Inclination)                 : 8.85320
            Ω (Longitude of ascending node) : 136.70557
            ω (Argument of perihelion)      : 359.61281
            M (Mean anomaly)                : 275.98248
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 136.32299
            B (Latitude of perihelion)      : -0.05959
            P (Orbital period in years)     : 5.37            
        

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
2026-01-16 00:00 UT   02 10 45.4   +02 53 16     2.745    3.010   95.9   19.0    69   13.2 
2026-01-16 08:45 UT   02 10 56.3   +02 55 27     2.750    3.009   95.6   19.0    69   13.2 
2026-01-17 00:00 UT   02 11 15.6   +02 59 16     2.758    3.009   95.1   19.0    69   13.2 
2026-01-18 00:00 UT   02 11 46.9   +03 05 21     2.771    3.008   94.2   19.0    70   13.2 
2026-01-19 00:00 UT   02 12 19.3   +03 11 30     2.784    3.007   93.4   19.1    70   13.3 
2026-01-20 00:00 UT   02 12 52.7   +03 17 43     2.797    3.006   92.5   19.1    70   13.3 
2026-01-21 00:00 UT   02 13 27.2   +03 23 60     2.810    3.005   91.7   19.1    70   13.3 
2026-01-22 00:00 UT   02 14 02.7   +03 30 21     2.823    3.004   90.9   19.1    70   13.3 
2026-01-23 00:00 UT   02 14 39.3   +03 36 45     2.836    3.003   90.1   19.1    70   13.3 
2026-01-24 00:00 UT   02 15 16.9   +03 43 13     2.849    3.001   89.2   19.1    71   13.3 
2026-01-25 00:00 UT   02 15 55.5   +03 49 45     2.862    3.000   88.4   19.1    71   13.3 
2026-01-26 00:00 UT   02 16 35.2   +03 56 19     2.875    2.999   87.6   19.1    71   13.3 
2026-01-27 00:00 UT   02 17 15.7   +04 02 57     2.888    2.998   86.8   19.1    71   13.3 
2026-01-28 00:00 UT   02 17 57.3   +04 09 38     2.901    2.997   86.0   19.1    71   13.3 
2026-01-29 00:00 UT   02 18 39.8   +04 16 22     2.914    2.996   85.2   19.1    71   13.3 
2026-01-30 00:00 UT   02 19 23.3   +04 23 09     2.927    2.995   84.4   19.1    72   13.4 
2026-01-31 00:00 UT   02 20 07.7   +04 29 59     2.939    2.994   83.6   19.1    72   13.4 
2026-02-01 00:00 UT   02 20 53.0   +04 36 51     2.952    2.993   82.8   19.1    72   13.4 
2026-02-02 00:00 UT   02 21 39.2   +04 43 45     2.965    2.992   82.0   19.0    72   13.4 
2026-02-03 00:00 UT   02 22 26.3   +04 50 42     2.978    2.991   81.3   19.0    72   13.4 
2026-02-04 00:00 UT   02 23 14.2   +04 57 41     2.991    2.990   80.5   19.0    72   13.4 
2026-02-05 00:00 UT   02 24 03.1   +05 04 43     3.004    2.989   79.7   18.9    73   13.4 
2026-02-06 00:00 UT   02 24 52.8   +05 11 46     3.016    2.988   78.9   18.9    73   13.4 
2026-02-07 00:00 UT   02 25 43.4   +05 18 52     3.029    2.987   78.2   18.9    73   13.4 
2026-02-08 00:00 UT   02 26 34.8   +05 25 59     3.042    2.986   77.4   18.8    73   13.4 
2026-02-09 00:00 UT   02 27 27.0   +05 33 08     3.054    2.985   76.6   18.8    73   13.4 
2026-02-10 00:00 UT   02 28 20.0   +05 40 19     3.067    2.984   75.9   18.7    73   13.4 
2026-02-11 00:00 UT   02 29 13.9   +05 47 32     3.080    2.983   75.1   18.6    74   13.4 
2026-02-12 00:00 UT   02 30 08.6   +05 54 46     3.092    2.982   74.4   18.6    74   13.4 
2026-02-13 00:00 UT   02 31 04.0   +06 02 02     3.104    2.981   73.6   18.5    74   13.5 
2026-02-14 00:00 UT   02 32 00.3   +06 09 18     3.117    2.980   72.9   18.5    74   13.5 
2026-02-15 00:00 UT   02 32 57.3   +06 16 37     3.129    2.979   72.2   18.4    74   13.5 

    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.