2015 BZ509
ephemeris	date	magn	radius	delta	ra	dec	elong	phase
Opposition	30 Mar 2024	23.9	6.266 AU	5.309 AU	13h08m	+12°21'	161.9°	2.8°
Today	25 Apr 2024	24.1	6.216 AU	5.363 AU	12h44m	+14°19'	145.2°	5.3°

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 2015 BZ509 are:

            e (Eccentricity)                : 0.3805428
            a (Semimajor axis)              : 5.1374609
            i (Inclination)                 : 163.00058
            Ω (Longitude of ascending node) : 307.38024
            ω (Argument of perihelion)      : 257.38028
            M (Mean anomaly)                : 66.37535
            Epoch                           : 2018 Mar 23

            L (Longitude of perihelion)     : 230.55684
            B (Latitude of perihelion)      : -16.57672
            P (Orbital period in years)     : 11.64            
        

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
2024-04-25 00:00 UT   12 44 50.2   +14 19 41     5.363    6.216  145.2    5.3   141   24.1 
2024-04-25 22:52 UT   12 43 59.1   +14 22 56     5.369    6.214  144.3    5.4   140   24.1 
2024-04-26 00:00 UT   12 43 56.6   +14 23 05     5.370    6.214  144.2    5.4   140   24.1 
2024-04-27 00:00 UT   12 43 03.4   +14 26 23     5.377    6.212  143.2    5.6   139   24.1 
2024-04-28 00:00 UT   12 42 10.7   +14 29 34     5.384    6.210  142.2    5.7   138   24.1 
2024-04-29 00:00 UT   12 41 18.3   +14 32 39     5.391    6.208  141.2    5.8   137   24.1 
2024-04-30 00:00 UT   12 40 26.5   +14 35 37     5.399    6.206  140.1    6.0   136   24.1 
2024-05-01 00:00 UT   12 39 35.0   +14 38 29     5.408    6.204  139.1    6.1   135   24.1 
2024-05-02 00:00 UT   12 38 44.1   +14 41 15     5.416    6.202  138.0    6.2   135   24.1 
2024-05-03 00:00 UT   12 37 53.7   +14 43 55     5.425    6.200  137.0    6.4   134   24.1 
2024-05-04 00:00 UT   12 37 03.7   +14 46 28     5.434    6.198  135.9    6.5   133   24.1 
2024-05-05 00:00 UT   12 36 14.4   +14 48 55     5.443    6.196  134.9    6.6   132   24.1 
2024-05-06 00:00 UT   12 35 25.5   +14 51 15     5.452    6.194  133.8    6.7   131   24.1 
2024-05-07 00:00 UT   12 34 37.2   +14 53 29     5.462    6.192  132.8    6.9   131   24.2 
2024-05-08 00:00 UT   12 33 49.5   +14 55 37     5.472    6.190  131.7    7.0   130   24.2 
2024-05-09 00:00 UT   12 33 02.4   +14 57 38     5.483    6.188  130.7    7.1   130   24.2 
2024-05-10 00:00 UT   12 32 15.9   +14 59 33     5.493    6.186  129.6    7.2   129   24.2 
2024-05-11 00:00 UT   12 31 30.1   +15 01 21     5.504    6.184  128.5    7.3   128   24.2 
2024-05-12 00:00 UT   12 30 44.8   +15 03 04     5.515    6.182  127.5    7.5   128   24.2 
2024-05-13 00:00 UT   12 30 00.2   +15 04 40     5.526    6.180  126.4    7.6   127   24.2 
2024-05-14 00:00 UT   12 29 16.2   +15 06 10     5.538    6.178  125.4    7.7   127   24.2 
2024-05-15 00:00 UT   12 28 32.9   +15 07 34     5.549    6.176  124.3    7.8   126   24.2 
2024-05-16 00:00 UT   12 27 50.3   +15 08 51     5.561    6.174  123.3    7.9   126   24.2 
2024-05-17 00:00 UT   12 27 08.4   +15 10 03     5.573    6.172  122.2    8.0   125   24.2 
2024-05-18 00:00 UT   12 26 27.1   +15 11 09     5.586    6.170  121.1    8.1   125   24.3 
2024-05-19 00:00 UT   12 25 46.5   +15 12 09     5.598    6.168  120.1    8.2   124   24.3 
2024-05-20 00:00 UT   12 25 06.7   +15 13 03     5.611    6.166  119.0    8.2   124   24.3 
2024-05-21 00:00 UT   12 24 27.5   +15 13 51     5.623    6.164  118.0    8.3   123   24.3 
2024-05-22 00:00 UT   12 23 49.0   +15 14 33     5.636    6.161  116.9    8.4   123   24.3 
2024-05-23 00:00 UT   12 23 11.3   +15 15 10     5.650    6.159  115.9    8.5   122   24.3 
2024-05-24 00:00 UT   12 22 34.3   +15 15 41     5.663    6.157  114.9    8.6   122   24.3 
2024-05-25 00:00 UT   12 21 58.0   +15 16 07     5.676    6.155  113.8    8.7   122   24.3 

    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.