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Article #4764

Conjunctions MP/NGC IC 40th week

#4764
From: Andreas Doppler
Date: Fri, 22 Sep 1995 00:00
149 lines
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Author : a.doppler@uriela.in-berlin.de (Andreas Doppler)

Daily conjunction ephemerides for the period of: Monday, 1995 Oct.  2 - Sunday,
1995 Oct.  8. The conjunctions are sorted by time (UT). All known asteroids and
objects of the NGC 2000.0 are included in the list which meets the following
criteria: The minimum elongation to the sun has to exceed 30 degrees, the
maximum elongation to the NGC/IC Object is 10 arcmin and the limiting magnitude
of the asteroid is brighter or equal than 14.0 mag. The Ephemerides were
calculated with a step of 10 min. Coordinates are for J2000.0 and FK5. Every
fifth issue detailed explanations are given at the end of the ephemerides.

------------------------------< Monday, 1995 Oct.  2 >-------------------------
 (UT)  Asteroid R.A.(2000)Decl Magn NGCICType R.A.(2000)Decl Magn  Size Dis Pos
 h  m  NameNum.  h   m    o  ' Step ID    OBJ  h   m    o  ' Step    '   '    o
13:40        35 14:19.0 -19:07 13.6 N5555  Gx 14:19.0 -19:08 15.0 ----- 0.2 326
17:00       451  2:04.7 -10:06 11.0 N 811  Gx  2: 4.7 -10:06 14.0 ----- 0.1 188

-----------------------------< Tuesday, 1995 Oct.  3 >-------------------------
 (UT)  Asteroid R.A.(2000)Decl Magn NGCICType R.A.(2000)Decl Magn  Size Dis Pos
 h  m  NameNum.  h   m    o  ' Step ID    OBJ  h   m    o  ' Step    '   '    o
12:10        31  9:20.7 +39:24 11.9 N2838  Gx  9:20.7 +39:19 14.0 ----- 5.0 356
19:20       159  1:21.5 + 0:02 12.6 I1681  Gx  1:21.4 + 0:05 15.0 ----- 2.9 209

---------------------------< Wednesday, 1995 Oct.  4 >-------------------------
 (UT)  Asteroid R.A.(2000)Decl Magn NGCICType R.A.(2000)Decl Magn  Size Dis Pos
 h  m  NameNum.  h   m    o  ' Step ID    OBJ  h   m    o  ' Step    '   '    o
 2:50       585  1:37.3 + 5:53 14.0 N 632  Gx  1:37.3 + 5:53 13.0 ----- 1.2  34
 9:30       219 17:14.1 -12:53 13.7 N6309  Pl 17:14.1 -12:55 11.0   1.1 1.4 353
15:10       585  1:36.8 + 5:49 14.0 N 631  Gx  1:36.8 + 5:51 15.0 ----- 1.3 214
18:00        40 10:58.3 + 9:24 12.1 N3476  Gx 10:58.1 + 9:17 15.0 ----- 8.1 340

----------------------------< Thursday, 1995 Oct.  5 >-------------------------
 (UT)  Asteroid R.A.(2000)Decl Magn NGCICType R.A.(2000)Decl Magn  Size Dis Pos
 h  m  NameNum.  h   m    o  ' Step ID    OBJ  h   m    o  ' Step    '   '    o
 1:20       980  9:15.4 +11:56 13.9 I 530  Gx  9:15.3 +11:53 14.0   2.1 3.7 333
 1:30        57  9:29.9 + 2:07 13.0 N2898  Gx  9:29.8 + 2:03 15.0 ----- 4.9 338
14:00      1158  1:03.4 +22:27 13.8 N 354  Gx  1: 3.3 +22:20 14.0   0.9 7.4 352
14:10        40 10:59.8 + 9:16 12.1 N3490  Gx 10:59.9 + 9:22 15.0 ----- 6.1 160
18:20        27 14:59.5 -16:15 12.5 N5817  Gx 14:59.6 -16:11 15.0 ----- 5.2 163
21:20       433 23:21.2 +25:28 11.5 I5315  Gx 23:21.3 +25:22 15.0   1.0 7.1  12

------------------------------< Friday, 1995 Oct.  6 >-------------------------
 (UT)  Asteroid R.A.(2000)Decl Magn NGCICType R.A.(2000)Decl Magn  Size Dis Pos
 h  m  NameNum.  h   m    o  ' Step ID    OBJ  h   m    o  ' Step    '   '    o
 6:10       554  1:25.2 +14:54 11.3 I 107  Gx  1:25.2 +14:53 15.0   1.2 1.2  17
18:00       532  9:04.5 +18:08 11.0 N2745  Gx  9: 4.6 +18:15 15.0 ----- 6.8 174
19:10      1325  1:49.2 +13:09 13.9 N 677  Gx  1:49.1 +13:02 14.0 ----- 8.0 353
21:40      1325  1:49.1 +13:10 13.9 N 675  Gx  1:49.0 +13:02 15.0 ----- 8.2 353

----------------------------< Saturday, 1995 Oct.  7 >-------------------------
 (UT)  Asteroid R.A.(2000)Decl Magn NGCICType R.A.(2000)Decl Magn  Size Dis Pos
 h  m  NameNum.  h   m    o  ' Step ID    OBJ  h   m    o  ' Step    '   '    o
 7:10       532  9:05.4 +18:06 11.0 N2751  Gx  9: 5.5 +18:15 15.0 ----- 8.2 173
10:40       308 11:20.3 + 2:59 13.8 N3630  Gx 11:20.3 + 2:58 13.0   2.3 1.9 338

------------------------------< Sunday, 1995 Oct.  8 >-------------------------
 (UT)  Asteroid R.A.(2000)Decl Magn NGCICType R.A.(2000)Decl Magn  Size Dis Pos
 h  m  NameNum.  h   m    o  ' Step ID    OBJ  h   m    o  ' Step    '   '    o
 1:00       308 11:21.2 + 2:54 13.8 N3643  Gx 11:21.4 + 3:01 15.0   1.1 7.0 159
 4:00      1626  7:29.0 +36:52 13.9 N2387  Gx  7:29.0 +36:52 15.0 ----- 0.2 332
 4:30       308 11:21.4 + 2:53 13.8 N3645  Gx 11:21.6 + 2:59 15.0 ----- 6.2 158
 6:30       308 11:21.6 + 2:52 13.8 N3647  Gx 11:21.6 + 2:54 15.0 ----- 1.6 161
 6:50       308 11:21.6 + 2:52 13.8 N3644  Gx 11:21.5 + 2:49 15.0 ----- 3.6 340
 8:30       276  2:17.6 +14:38 13.2 N 877  Gx  2:18.0 +14:33 11.8   2.3 8.2  47
13:10       276  2:17.5 +14:36 13.2 N 876  Gx  2:17.9 +14:31 ----   2.1 8.6  47
14:30        25  1:59.7 +18:56 10.5 N 772  Gx  1:59.3 +19:01 10.3   7.1 7.2 238
19:20        25  1:59.6 +18:53 10.5 N 770  Gx  1:59.2 +18:57 14.0   1.3 6.1 237
23:50       329  3:14.5 + 2:41 13.5 N1254  Gx  3:14.4 + 2:42 15.0 ----- 1.3 237

Used orbital elements  ( 2000.0 ) .
MP       JDate    M     Halfa Eccen Perihel Node    Inclin  H    G    Source
NameNum. YeMoDa Degrees   A.U.    e Degrees Degrees Degree  Magn -
------------------------------------------------------------------------------
      25 951010  52.907 2.400 0.256  90.309 214.342 21.572  7.83 0.15 EMP 1995
      27 951010 138.265 2.348 0.171 356.169  94.819  1.584  7.00 0.15 EMP 1995
      31 940905 299.306 3.147 0.228  62.791  31.298 26.340  6.74 0.15 MPC24219
      35 940905 299.437 2.994 0.225 214.732 353.985  7.930  8.50 0.15 MPC24219
      40 951010 145.207 2.267 0.047 269.286  94.347  4.258  7.00 0.15 EMP 1995
      57 940217 316.148 3.149 0.120 215.529 199.444 15.211  7.03 0.15 MPC22665
     159 951010 277.794 3.101 0.110 337.750 134.398  6.122  8.12 0.15 EMP 1995
     219 951010 324.814 2.354 0.224 142.082 201.026 10.840  9.32 0.15 EMP 1995
     276 951010 275.875 3.114 0.073 271.188 211.455 21.652  8.56 0.15 EMP 1995
     308 950324 184.191 2.749 0.038 115.548 182.052  4.355  8.17 0.21 MPC24371
     329 951010 166.818 2.477 0.023  50.102 178.619 15.892  9.66 0.15 EMP 1995
     433 940905  49.470 1.458 0.223 178.567 304.451 10.829 11.16 0.46 MPC24086
     451 940905 240.322 3.060 0.074 343.495  89.494 15.232  6.65 0.19 MPC24220
     532 951010 309.130 2.773 0.175  74.938 108.032 16.345  5.81 0.26 EMP 1995
     554 940217 166.702 2.375 0.153 127.416 295.792  2.940  8.97 0.15 MPC23111
     585 951010 245.434 2.430 0.132 327.594 180.444  7.557 10.40 0.15 EMP 1995
     980 951010 107.004 2.741 0.202  69.989 286.146 15.890  7.85 0.06 EMP 1995
    1158 951010 343.319 2.564 0.112  56.474 345.018 14.862 10.80 0.15 EMP 1995
    1325 951010  18.268 2.541 0.256 336.909  14.568  7.438 11.90 0.15 EMP 1995
    1626 951010   0.822 2.363 0.276 148.841 279.686 25.325 10.50 0.15 EMP 1995

If the asteroid is not numbered, alternately the designation is given. 'JDate'
is the Julian Date yymmdd for the anomaly M in degrees. 'Halfax.' is the great
half axis a in astronomical units. 'Eccentr e' is the eccentricity of the
orbit. 'Perihel', 'Node' and 'Inclin.' are these three orbit angles in degrees.
H is the magnitude of the object in 1 A.U. from the sun and the earth, G is the
factor in the calculation of the objects brightness, which is too complicate to
list here (see textbooks). 'Source' is the source of the elements, usually from
a minor planet circular. These orbital element list is only for an overview,
which orbit I used. For well-known objects the accuracy of the published
original elements may be some digits better than given here.

Explanations of the columns in the ephemerides:

UT                Universal Time of the conjunctions given in steps of 10min.  
MinorPl           Number or designation of the asteroid.
R.A.(2000)Decl    The asteroid�s right ascension in hours and time minutes and 
                  the declination in degrees and arc minutes for J2000.0.
Magn              The magnitude of the asteroid in magnitude steps.
NGCICType         N or I for a NGC or IC Object followed by the number as
                  appeared in the catalogue.
                  Gx  : Galaxy
                  OC  : Open star cluster
                  Gb  : Globular star cluster, usually in the Milky Way Galaxy
                  Nb  : Bright emission or reflection nebula
                  Pl  : Planetary nebula
                  C+N : Cluster associated with nebulosity
                  Ast : Asterism or group of a few stars
                  Kt  : Knot or nebulous region in an external galaxy
                  *** : Triple star
                  D*  : Double star
                  *   : Single star
                  ?   : Uncertain type or may not exist
                  x   : Unidentified at the place given, or type unknown
                  -   : Object called nonexistent in the RNGC
                  PD  : Photographic plate defect
R.A.(2000)Decl    The NGC/IC Object�s right ascension in hours and time minutes
                  and the declination in degrees and arc minutes for J2000.0.
Magn              The magnitude of the NGC/IC Object in magnitude steps.
Size              The size of the NGC/IC Object in arc minutes.
Dist              The distance of the asteroid to the NGC/IC Object in arc
                  minutes.
Pos               The asteroid's position angle to the NGC/IC Object (from north
                  over east, south and west back to north, 0..360 degrees).

These ephemerides should promote the observing of conjunctions.

These ephemerides were computed with a program by Andreas Doppler with an Apple
Performa 630 computer (Version of 1995 Sep 10th).

Please let me know if you observed a conjunction (or not).
You can reach me at a.doppler@uriela.in-berlin.de (InterNet).

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a.doppler@uriela.in-berlin.de consisting of a single line reading:
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From: a.doppler@uriela.in-berlin.de (Andreas Doppler)
Subject: Conjunctions MP/NGC IC 40th week
Date: 1995/09/22
Message-ID: <a.doppler-2209952333350001@aobs.in-berlin.de>
X-Deja-AN: 110588513
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