Asteroid-DSO Appulses - 2018 April


All dates and times are Universal Time
Positions are geocentric J2000 and include planetary perturbations
Separations are in arcseconds, Position Angle is from the object to the asteroid
Calculations by Brian D. Warner

Object Types: 

OC - Open Cluster      G   - Galaxy    GC - Globular Cluster  
PN - Planetary Nebula  CNB - Cluster + Nebula
SE - Solar Elongation
ME - Moon Elongation
MP - Moon Phase
0 = New, 0.5 = Quarter, 1 = Full. + = Waxing; – = Waning

Date    UT       #    Asteroid              RA        Dec      Mag    Sep   PA  DSO         Mag  Type  SE   ME    MP
-----------------------------------------------------------------------------------------------------------------------
04/01  04:48      423 Diotima             18 32.71  -25 01.4   12.8   405   13  NGC 6644    12.2  PN    94   78  -0.99
04/01  14:38      739 Mandeville          18 04.08  -00 25.9   13.3   537  152  NGC 6535    10.6  GC   100   66  -0.98
04/01  23:58      372 Palma               06 47.22  +33 34.4   12.4    29   37  NGC 2274    12.1  G     88  109  -0.97
04/02  01:57      360 Carlova             12 22.90  +11 55.1   13.2   407   26  NGC 4313    11.6  G    163   32  -0.97
04/02  02:23      100 Hekate              07 38.50  +21 41.0   13.9   422  359  NGC 2420     8.3  OC   101   99  -0.97
04/02  16:25        4 Vesta               17 59.60  -17 30.0    7.0   363  180  NGC 6507     9.6  OC   103   50  -0.94
04/06  01:28       14 Irene               20 06.10  -21 56.2   11.4    71  177  M75          8.6  GC    77   38  -0.70
04/07  04:20       54 Alexandra           13 48.80  -30 33.8   11.5   347  180  NGC 5302    12.1  G    154   62  -0.60
04/09  12:40      853 Nansenia            14 06.12  -05 34.5   14.0   578  228  NGC 5468    12.5  G    166   91  -0.38
04/13  01:20       97 Klotho              19 42.79  -10 20.3   13.6   214  159  NGC 6814    11.2  G     87   52  -0.10
04/13  18:34       11 Parthenope          08 14.27  +21 26.7   11.6   345   10  NGC 2545    12.4  G     98  126  -0.06
04/15  09:27      163 Erigone             14 03.40  -06 03.1   12.6     7  206  NGC 5426    12.1  G    172  166  -0.01
04/15  10:54      163 Erigone             14 03.34  -06 02.7   12.6   114  207  NGC 5427    11.4  G    172  167  -0.01
04/15  21:56      932 Hooveria            13 02.86  -08 08.0   13.3   183  190  NGC 4928    12.5  G    172  171  +0.00
04/16  17:36      586 Thekla              13 03.13  -07 57.5   13.4   497   25  NGC 4928    12.5  G    171  161  +0.01
04/16  20:48      402 Chloe               14 38.90  +05 17.3   12.3   383  208  NGC 5701    10.9  G    158  165  +0.01
04/17  02:51      489 Comacina            14 37.58  -00 30.9   12.8   505  215  NGC 5691    12.3  G    163  170  +0.02
04/17  16:24      369 Aeria               17 56.13  -16 37.9   13.3   495  197  PK 11+4.1   12.0  PN   118  140  +0.04
04/18  04:32      349 Dembowska           05 24.08  +29 42.4   11.5   386  358  Berk 19     11.4  OC    55   29  +0.06
04/18  23:16       91 Aegina              10 40.31  +09 14.1   13.1   203  338  NGC 3332    12.3  G    130   92  +0.11
04/19  04:16       22 Kalliope            12 53.00  +11 17.5   11.1   210    1  NGC 4762    10.3  G    154  118  +0.12
04/19  20:00      306 Unitas              12 24.52  +07 20.7   12.5    48   23  NGC 4365     9.6  G    152  104  +0.18
04/19  23:05       22 Kalliope            12 52.40  +11 17.7   11.1    80  181  NGC 4754    10.6  G    153  107  +0.19
04/20  01:41       74 Galatea             13 08.65  -06 48.6   13.6   109  205  NGC 4981    11.3  G    169  116  +0.20
04/20  23:49      268 Adorea              18 42.57  -21 10.6   13.5   384  356  PK 12-7.1   12.0  PN   111  176  +0.29
04/21  03:01       92 Undina              06 04.95  +24 09.9   12.9   593  356  IC 2157      8.4  OC    60    7  +0.30
04/22  04:16       11 Parthenope          08 20.69  +21 10.7   11.7   410   11  NGC 2563    12.2  G     91   11  +0.42
04/22  07:06      287 Nephthys            12 53.64  +09 35.2   11.5   574  204  NGC 4779    12.4  G    153   75  +0.43
04/23  07:06       92 Undina              06 07.47  +24 12.3   12.9   378  356  NGC 2158     8.6  OC    59   37  +0.55
04/24  09:35       17 Thetis              05 51.71  +21 45.6   13.4    87  175  Berk 21      1.1  OC    54   56  +0.67
04/24  13:03       92 Undina              06 08.93  +24 13.6   13.0   385  176  M35          5.1  OC    58   54  +0.69
04/24  15:53       74 Galatea             13 05.29  -06 24.1   13.7   391   26  NGC 4951    11.9  G    163   50  +0.70
04/24  17:57      233 Asterope            18 33.30  -17 19.9   12.9     5  320  NGC 6647     8.0  OC   116  129  +0.71
04/26  01:55      306 Unitas              12 20.32  +07 46.7   12.7   303   20  NGC 4276    12.4  G    145   16  +0.83
04/26  09:01      212 Medea               12 55.83  -12 02.0   13.3    69   25  NGC 4802    12.0  G    161   28  +0.85
04/28  07:55       54 Alexandra           13 27.83  -29 42.6   11.2   362  202  NGC 5153    11.8  G    160   28  +0.97
04/28  10:05       54 Alexandra           13 27.74  -29 42.2   11.2   333  202  NGC 5152    12.5  G    160   27  +0.97
04/28  11:34      106 Dione               12 52.55  -01 04.4   12.9   473   16  NGC 4753     9.9  G    154    7  +0.97
04/28  13:17      137 Meliboea            19 27.17  -06 36.2   12.8    97  140  PK 31-10.1  12.4  PN   105   91  +0.97
04/28  20:59       17 Thetis              05 58.23  +21 52.0   13.4   358  177  Basel 11B    8.9  OC    51  115  +0.98
04/29  00:30      385 Ilmatar             05 22.70  +33 23.6   13.1    25  182  NGC 1893     7.5  OC    45  122  +0.99
04/29  10:28      146 Lucina              13 37.40  +08 53.5   11.9    31  356  NGC 5248    10.3  G    154   18  +0.99
04/29  11:11       17 Thetis              05 59.11  +21 52.8   13.4    72  176  Basel 11     8.9  OC    51  122  +0.99
04/29  18:53      586 Thekla              12 54.45  -06 55.9   13.7   323  205  NGC 4786    11.7  G    156   22  +1.00