2021 CH8
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Today	4 Nov 2025	26.0	1.504 AU	0.633 AU	05h17m	-06°59'	134.3°	28.2°

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 2021 CH8 are:

            e (Eccentricity)                : 0.2805442
            a (Semimajor axis)              : 1.1796885
            i (Inclination)                 : 12.19768
            Ω (Longitude of ascending node) : 149.83680
            ω (Argument of perihelion)      : 75.69175
            M (Mean anomaly)                : 208.05564
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 225.21209
            B (Latitude of perihelion)      : 11.81376
            P (Orbital period in years)     : 1.28            
        

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
2025-11-04 00:00 UT   05 17 06.7   -06 59 54     0.633    1.504  134.3   28.2   299   26.0 
2025-11-04 18:59 UT   05 16 19.9   -07 14 02     0.629    1.503  134.9   27.8   300   25.9 
2025-11-05 00:00 UT   05 16 07.1   -07 17 45     0.628    1.503  135.1   27.8   301   25.9 
2025-11-06 00:00 UT   05 15 03.7   -07 35 28     0.623    1.502  135.9   27.4   302   25.9 
2025-11-07 00:00 UT   05 13 56.3   -07 52 60     0.618    1.501  136.6   27.0   304   25.9 
2025-11-08 00:00 UT   05 12 45.1   -08 10 20     0.613    1.501  137.4   26.6   305   25.8 
2025-11-09 00:00 UT   05 11 30.0   -08 27 27     0.609    1.500  138.1   26.2   307   25.8 
2025-11-10 00:00 UT   05 10 11.0   -08 44 20     0.604    1.499  138.8   25.8   309   25.8 
2025-11-11 00:00 UT   05 08 48.1   -09 00 56     0.600    1.498  139.5   25.4   311   25.8 
2025-11-12 00:00 UT   05 07 21.5   -09 17 13     0.596    1.497  140.1   25.1   312   25.7 
2025-11-13 00:00 UT   05 05 51.1   -09 33 11     0.592    1.496  140.8   24.7   314   25.7 
2025-11-14 00:00 UT   05 04 17.0   -09 48 46     0.588    1.495  141.4   24.4   316   25.7 
2025-11-15 00:00 UT   05 02 39.4   -10 03 58     0.585    1.494  142.0   24.1   318   25.7 
2025-11-16 00:00 UT   05 00 58.2   -10 18 44     0.581    1.493  142.5   23.8   320   25.6 
2025-11-17 00:00 UT   04 59 13.6   -10 33 02     0.578    1.491  143.0   23.5   323   25.6 
2025-11-18 00:00 UT   04 57 25.8   -10 46 51     0.575    1.490  143.5   23.2   325   25.6 
2025-11-19 00:00 UT   04 55 34.7   -11 00 09     0.572    1.489  144.0   23.0   327   25.6 
2025-11-20 00:00 UT   04 53 40.7   -11 12 53     0.569    1.488  144.4   22.8   330   25.5 
2025-11-21 00:00 UT   04 51 43.9   -11 25 03     0.566    1.486  144.7   22.6   332   25.5 
2025-11-22 00:00 UT   04 49 44.4   -11 36 35     0.564    1.485  145.0   22.4   335   25.5 

    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.