Asteroid-Asteroid Appulses - 2026 December

All dates and times are Universal Time
Positions are geocentric J2000 and include planetary perturbations
The first asteroid in the pair is the brighter of the two
Separations are in arcseconds, Position Angle is from the brighter asteroid to the fainter
Calculations by Brian D. Warner
 
Asteroid < mag 16; Elong from Sun > 45 degrees 

Ast 1 :  Asteroid 1 Number
Name 1:  Asteroid 1 Name
Ast 2 :  Asteroid 2 Number
Name 2:  Asteroid 2 Name
RA:      Asteroid 1 RA
Dec:     Asteroid 1 Declination
Mag 1:   Asteroid 1 V magnitude
Mag 2:   Asteroid 2 V magnitude
Sep:     Separation, arcsec
PA:      Position Angle, Ast 1 to Ast 2
         0 = North, 90 = East, 180 = South, 270 = West
SE:      Angular separation between Sun and Ast 1
ME:      Angular separation between Moon and Ast 1
MP:      Moon Phase
         0 = New, 0.5 = Quarter, 1 = Full. + = Waxing; – = Waning


Date     UT    Ast1     Name1                 Ast2     Name2                      RA            Dec     Mag1  Mag2  Sep  PA   SE   ME     MP  
-------------------------------------------------------------------------------------------------------------------------------------------------
12 03   06:47      665  Sabine                    879  Ricarda                  23 20.19     +13 24.95  14.5  15.1   64    2  104  155  -0.203
12 03   21:37      714  Ulula                    3198  Wallonia                 04 52.36     +14 31.16  12.0  14.3  235  101  172  124  -0.203
12 10   00:47      223  Rosa                      981  Martina                  23 32.99     -04 17.00  15.6  16.0  217   23   94   75  +0.028
12 14   00:33      230  Athamantis              15416  1998 DZ2                 04 43.92     +17 36.57  10.4  15.6  121  274  168  104  +0.289
12 15   14:34      285  Regina                   1236  Thais                    06 38.64     +38 28.68  16.0  15.0  286  109  160  107  +0.453
12 15   22:42      100  Hekate                    306  Unitas                   22 41.53     -13 24.50  13.2  13.3  141   15   72   29  +0.581
12 17   14:20      311  Claudia                  1256  Normannia                03 58.21     +19 31.25  14.5  15.7  222  151  150   13  +0.973
12 18   03:08      470  Kilia                     634  Ute                      06 29.26     +11 42.96  13.5  14.3  289  235  167   39  +0.937
12 20   06:15     2065  Spicer                  52314  1991 XD                  03 58.01     +31 31.24  15.4  15.8  297  298  153   25  +0.826
12 21   08:07      361  Bononia                   720  Bohlinia                 13 39.18     -09 17.95  15.4  15.4   92  353   64  130  +0.982
12 21   21:56      102  Miriam                    133  Cyrene                   12 16.76     -05 36.52  15.5  13.7  144   94   86   76  -0.977
12 23   05:47       83  Beatrix                  2962  Otto                     03 08.93     +22 20.12  12.9  15.4   27  110  136   82  -0.892
12 26   14:30     3664  Anneres                  4641  Ayako                    05 31.93     +22 31.40  15.7  16.0  191  302  169   42  -0.927
12 28   06:43      168  Sibylla                  3139  Shantou                  05 07.58     +17 19.30  13.2  15.7  202  255  157  114  -0.474