C/2013 V5 (Oukaimeden)
ephemeris	date	magn	radius	delta	ra	dec	elong	phase	PA
Nearest approach	14 Sep 2014	5.4	0.682 AU	0.475 AU	10h25m	-29°22'	36.1°	119.7°	208°
Perihelion	26 Sep 2014	6.3	0.637 AU	0.709 AU	14h04m	-29°20'	39.2°	96.1°	131°
Today	8 Nov 2025	30.5	27.147 AU	27.510 AU	11h25m	+27°31'	67.5°	1.9°	305°

The interactive orbit chart above shows the comet'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.)

Light curve

The light curve chart below shows the estimated development of the comet's magnitude. Blue and black dots are visual and photometric CCD observations from COBS. The light curve is based on the absolute magnitude and slope parameter as calculated from an MPEC, or the latest values provided by the minor planet center. (9.0 + 5 log[∆] + 10.0 log[r]). An additional green curve is displayed when an increase in apparent brightness is expected due to forward scattering of sunlight, which occurs when a dust-rich comet is located between the Earth and the Sun. (See Marcus 2007)

Charts

The all-sky chart below shows the path of the comet over the same period as the light curve. The comet's current position is marked yellow.

The following chart shows the short-term path of the comet in a field of view that is optimized for (~10x50) binoculars and finderscopes.

Orbital elements

The orbital elements of C/2013 V5 (Oukaimeden) are:

    e (Eccentricity)                : 0.9980840
    q (Perihelion distance)         : 0.6373060
    i (Inclination)                 : 154.88630
    Ω (Longitude of ascending node) : 278.76790
    ω (Argument of perihelion)      : 314.91330
    L (Longitude of perihelion)     : 321.01400
    B (Latitude of perihelion)      : -17.49131
    T (Time of perihelion passage)  : 2456926.67650
    P (Orbital period in years)     : 6066.37

    Epoch                           : 2020 Sep 26
    Reference                       : MPC102951

    Classification(s):              : Nearly isotropic; Returning (a < 10000 AU); External (P > 200 years)

Ephemerides

Date       Time       RA (2000)    DEC (2000)    delta   radius  elong  phase   PA    magn
2025-11-07 00:00 UT   11 25 21.8   +27 30 23    27.530   27.138   65.7    1.9   305   30.5 
2025-11-08 00:00 UT   11 25 26.5   +27 30 41    27.520   27.143   66.6    1.9   305   30.5 
2025-11-08 23:53 UT   11 25 31.0   +27 31 01    27.510   27.147   67.5    1.9   305   30.5 
2025-11-09 00:00 UT   11 25 31.0   +27 31 01    27.510   27.147   67.5    1.9   305   30.5 
2025-11-10 00:00 UT   11 25 35.4   +27 31 21    27.499   27.152   68.4    1.9   304   30.5 
2025-11-11 00:00 UT   11 25 39.7   +27 31 43    27.489   27.156   69.4    2.0   304   30.5 
2025-11-12 00:00 UT   11 25 43.9   +27 32 06    27.478   27.161   70.3    2.0   303   30.5 
2025-11-13 00:00 UT   11 25 47.9   +27 32 30    27.468   27.166   71.2    2.0   303   30.5 
2025-11-14 00:00 UT   11 25 51.9   +27 32 55    27.457   27.170   72.1    2.0   303   30.5 
2025-11-15 00:00 UT   11 25 55.6   +27 33 22    27.446   27.175   73.0    2.0   302   30.5 
2025-11-16 00:00 UT   11 25 59.3   +27 33 50    27.435   27.179   73.9    2.0   302   30.5 
2025-11-17 00:00 UT   11 26 02.8   +27 34 19    27.424   27.184   74.9    2.0   301   30.5 
2025-11-18 00:00 UT   11 26 06.1   +27 34 49    27.413   27.188   75.8    2.0   301   30.5 

    Terminology:
            
    delta:  distance between comet and earth in AU
    radius: distance between comet 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-comet)    
    phase:  phase angle in degrees (angle sun-comet-earth)        
    AU:     Astronomical Unit (mean distance between earth and sun: 149597870.7 km      
    

Orbital elements usually provided by the MPC (Minor Planet Center).
Observations contributed by observers worldwide, via COBS (Comet Observation Database) or 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.