A901 NA
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	16 Jan 2025	11.8	2.382 AU	1.401 AU	07h50m	+15°51'	174.9°	2.1°
Today	22 Jan 2025	11.9	2.387 AU	1.408 AU	07h44m	+16°48'	172.0°	3.3°

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 A901 NA are:

            e (Eccentricity)                : 0.0952528
            a (Semimajor axis)              : 2.5431672
            i (Inclination)                 : 15.80969
            Ω (Longitude of ascending node) : 127.05506
            ω (Argument of perihelion)      : 296.47458
            M (Mean anomaly)                : 187.55944
            Epoch                           : 2022 Aug 09

            L (Longitude of perihelion)     : 64.42150
            B (Latitude of perihelion)      : -14.11521
            P (Orbital period in years)     : 4.06            
        

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. A more printer-friendly version of the same chart can be found below.

Ephemerides:

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-01-22 00:00 UT   07 44 57.6   +16 48 19     1.408    2.387  172.0    3.3    67   11.9 
2025-01-22 08:07 UT   07 44 38.1   +16 51 50     1.409    2.387  171.6    3.4    69   11.9 
2025-01-23 00:00 UT   07 44 00.2   +16 58 44     1.410    2.387  170.9    3.7    72   11.9 
2025-01-24 00:00 UT   07 43 03.3   +17 09 09     1.413    2.388  169.9    4.2    76   12.0 
2025-01-25 00:00 UT   07 42 07.1   +17 19 31     1.416    2.389  168.7    4.6    79   12.0 
2025-01-26 00:00 UT   07 41 11.5   +17 29 52     1.419    2.390  167.6    5.1    82   12.0 
2025-01-27 00:00 UT   07 40 16.6   +17 40 10     1.422    2.391  166.4    5.6    84   12.1 
2025-01-28 00:00 UT   07 39 22.6   +17 50 25     1.426    2.392  165.2    6.0    86   12.1 
2025-01-29 00:00 UT   07 38 29.5   +18 00 37     1.430    2.392  164.0    6.5    87   12.1 
2025-01-30 00:00 UT   07 37 37.4   +18 10 45     1.434    2.393  162.8    7.0    89   12.2 
2025-01-31 00:00 UT   07 36 46.4   +18 20 48     1.439    2.394  161.7    7.4    90   12.2 
2025-02-01 00:00 UT   07 35 56.5   +18 30 47     1.444    2.395  160.5    7.9    91   12.2 
2025-02-02 00:00 UT   07 35 07.8   +18 40 41     1.449    2.396  159.3    8.4    92   12.2 
2025-02-03 00:00 UT   07 34 20.4   +18 50 30     1.454    2.397  158.1    8.8    92   12.3 
2025-02-04 00:00 UT   07 33 34.3   +19 00 12     1.460    2.398  156.9    9.3    93   12.3 
2025-02-05 00:00 UT   07 32 49.7   +19 09 49     1.465    2.398  155.7    9.8    93   12.3 
2025-02-06 00:00 UT   07 32 06.4   +19 19 19     1.472    2.399  154.5   10.2    94   12.4 
2025-02-07 00:00 UT   07 31 24.7   +19 28 43     1.478    2.400  153.3   10.6    94   12.4 
2025-02-08 00:00 UT   07 30 44.5   +19 37 60     1.484    2.401  152.1   11.1    95   12.4 
2025-02-09 00:00 UT   07 30 05.9   +19 47 09     1.491    2.402  150.9   11.5    95   12.4 
2025-02-10 00:00 UT   07 29 28.9   +19 56 11     1.498    2.403  149.8   11.9    95   12.5 
2025-02-11 00:00 UT   07 28 53.6   +20 05 06     1.506    2.404  148.6   12.3    96   12.5 
2025-02-12 00:00 UT   07 28 20.0   +20 13 53     1.513    2.405  147.5   12.8    96   12.5 
2025-02-13 00:00 UT   07 27 48.0   +20 22 33     1.521    2.406  146.3   13.2    96   12.5 
2025-02-14 00:00 UT   07 27 17.9   +20 31 04     1.529    2.406  145.2   13.6    97   12.6 
2025-02-15 00:00 UT   07 26 49.5   +20 39 27     1.537    2.407  144.0   13.9    97   12.6 
2025-02-16 00:00 UT   07 26 23.0   +20 47 42     1.545    2.408  142.9   14.3    97   12.6 
2025-02-17 00:00 UT   07 25 58.3   +20 55 49     1.554    2.409  141.8   14.7    97   12.6 
2025-02-18 00:00 UT   07 25 35.4   +21 03 47     1.563    2.410  140.7   15.1    97   12.7 
2025-02-19 00:00 UT   07 25 14.4   +21 11 37     1.572    2.411  139.6   15.4    97   12.7 
2025-02-20 00:00 UT   07 24 55.2   +21 19 18     1.581    2.412  138.5   15.8    98   12.7 
2025-02-21 00:00 UT   07 24 38.0   +21 26 50     1.590    2.413  137.4   16.1    98   12.8 

    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.