(201) Penelope
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	28 Jan 2026	12.8	3.073 AU	2.090 AU	08h39m	+14°13'	176.0°	1.3°
Today	7 Mar 2026	13.6	3.106 AU	2.318 AU	08h13m	+16°55'	135.7°	12.9°

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 Penelope are:

            e (Eccentricity)                : 0.1801124
            a (Semimajor axis)              : 2.6808648
            i (Inclination)                 : 5.76073
            Ω (Longitude of ascending node) : 156.78723
            ω (Argument of perihelion)      : 181.53024
            M (Mean anomaly)                : 123.01011
            Epoch                           : 2025 Nov 21

            L (Longitude of perihelion)     : 158.30975
            B (Latitude of perihelion)      : -0.15358
            P (Orbital period in years)     : 4.39            
        

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
2026-03-07 00:00 UT   08 13 27.4   +16 55 11     2.318    3.106  135.7   12.9   100   13.6 
2026-03-07 20:45 UT   08 13 09.9   +16 57 53     2.327    3.107  134.7   13.1   100   13.6 
2026-03-08 00:00 UT   08 13 07.2   +16 58 18     2.329    3.107  134.6   13.2   100   13.6 
2026-03-09 00:00 UT   08 12 48.5   +17 01 20     2.340    3.108  133.5   13.4   100   13.6 
2026-03-10 00:00 UT   08 12 31.1   +17 04 18     2.351    3.108  132.4   13.6   100   13.7 
2026-03-11 00:00 UT   08 12 15.2   +17 07 10     2.362    3.109  131.4   13.9   100   13.7 
2026-03-12 00:00 UT   08 12 00.8   +17 09 57     2.374    3.110  130.3   14.1   100   13.7 
2026-03-13 00:00 UT   08 11 47.7   +17 12 40     2.385    3.111  129.2   14.3   100   13.7 
2026-03-14 00:00 UT   08 11 36.2   +17 15 17     2.397    3.111  128.2   14.5   100   13.7 
2026-03-15 00:00 UT   08 11 26.0   +17 17 49     2.409    3.112  127.1   14.8   100   13.8 
2026-03-16 00:00 UT   08 11 17.3   +17 20 16     2.421    3.113  126.1   15.0   101   13.8 
2026-03-17 00:00 UT   08 11 10.1   +17 22 38     2.433    3.114  125.1   15.2   101   13.8 
2026-03-18 00:00 UT   08 11 04.3   +17 24 55     2.446    3.114  124.1   15.4   101   13.8 
2026-03-19 00:00 UT   08 10 60.0   +17 27 07     2.458    3.115  123.0   15.5   101   13.8 
2026-03-20 00:00 UT   08 10 57.1   +17 29 13     2.471    3.116  122.0   15.7   101   13.9 
2026-03-21 00:00 UT   08 10 55.6   +17 31 15     2.484    3.116  121.0   15.9   101   13.9 
2026-03-22 00:00 UT   08 10 55.5   +17 33 11     2.497    3.117  120.0   16.1   101   13.9 
2026-03-23 00:00 UT   08 10 56.9   +17 35 02     2.510    3.118  119.0   16.2   101   13.9 
2026-03-24 00:00 UT   08 10 59.7   +17 36 48     2.523    3.118  118.0   16.4   101   13.9 
2026-03-25 00:00 UT   08 11 03.9   +17 38 28     2.536    3.119  117.1   16.5   101   13.9 
2026-03-26 00:00 UT   08 11 09.4   +17 40 04     2.550    3.120  116.1   16.7   101   14.0 
2026-03-27 00:00 UT   08 11 16.4   +17 41 34     2.563    3.120  115.1   16.8   101   14.0 
2026-03-28 00:00 UT   08 11 24.7   +17 42 59     2.577    3.121  114.2   17.0   101   14.0 
2026-03-29 00:00 UT   08 11 34.3   +17 44 20     2.591    3.122  113.2   17.1   102   14.0 
2026-03-30 00:00 UT   08 11 45.3   +17 45 35     2.604    3.122  112.3   17.2   102   14.0 
2026-03-31 00:00 UT   08 11 57.6   +17 46 45     2.618    3.123  111.3   17.3   102   14.0 
2026-04-01 00:00 UT   08 12 11.2   +17 47 50     2.632    3.124  110.4   17.4   102   14.1 
2026-04-02 00:00 UT   08 12 26.0   +17 48 50     2.646    3.124  109.4   17.6   102   14.1 
2026-04-03 00:00 UT   08 12 42.2   +17 49 45     2.660    3.125  108.5   17.7   102   14.1 
2026-04-04 00:00 UT   08 12 59.6   +17 50 35     2.674    3.126  107.6   17.8   102   14.1 
2026-04-05 00:00 UT   08 13 18.3   +17 51 21     2.689    3.126  106.7   17.8   102   14.1 
2026-04-06 00:00 UT   08 13 38.2   +17 52 01     2.703    3.127  105.8   17.9   102   14.1 

    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.