C/2009 W2 (Boattini)
Epoch 2010 May 4.0 TT = JDT 2455320.5
T 2010 May 1.78143 TT Nakano
q 6.9071911 (2000.0) P Q
z +0.0001017 Peri. 121.33830 +0.21413533 +0.97268284
+/-0.0000697 Node 199.58433 +0.78050676 -0.11520681
e 0.9992977 Incl. 164.48993 +0.58732892 -0.20153284
From 86 observations 2008 Dec. 22-2010 Jan. 23, mean residual 0".60.
(1/a)org.= +0.000427, (1/a)fut.= +0.000469 (+/-0.000070), Q= 6.
The comet has passed 1.97 AU from Saturn on 2007 May 18 and
will pass 2.91 AU from Jupiter on 2011 Oct. 29 UT.
The prediscovery observations in 2008 were found by M. Meyer.
Residuals in seconds of arc
2008/ 091124 H01 0.9- 0.0 091209 473 0.1- 0.1+
081222 G96 0.2- 0.3+ 091124 926 0.6+ 0.6+ 091211 372 0.1- 0.4+
081222 G96 0.2+ 0.7- 091124 926 0.0 0.0 091211 372 1.2+ 1.9+
081222 G96 0.5+ 0.5+ 091124 926 0.3- 0.1+ 091211 372 0.7+ 0.6+
081222 G96 0.6- 0.3- 091124 A77 1.0+ 0.2+ 091216 204 0.2- 0.2-
2009/ 091125 372 0.2- 1.7- 091216 204 0.3+ 0.1+
091121 703 0.0 0.9+ 091125 372 0.4+ 1.0- 091216 372 0.1- 0.8-
091121 703 1.1+ 1.2+ 091126 850 0.3+ 0.1- 091216 372 0.4- 0.5+
091121 703 0.4- 1.0- 091126 850 0.3- 0.2+ 091223 585 0.2+ 0.1+
091121 703 1.0- 0.3- 091126 H10 0.7+ 0.1+ 091223 372 0.4+ 0.4-
091123 703 0.3+ 1.2+ 091126 H10 1.5+ 1.0- 091223 349 1.3+ 0.9+
091123 703 0.2- 1.1- 091126 H10 0.5- 0.8- 091223 349 0.5+ 0.1-
091123 703 0.4- 0.7- 091126 G96 0.0 0.2+ 091226 G68 0.6- 0.0
091123 G96 0.1- 0.2+ 091126 G96 0.6+ 0.2- 091226 G68 0.6- 0.1+
091123 G96 0.7- 0.0 091126 G96 0.0 0.2+ 091228 118 0.8- 0.0
091123 G96 0.2- 0.1+ 091126 G96 0.6+ 0.2- 091228 118 0.8- 0.3+
091123 G96 0.9- 0.4+ 091126 G96 0.6- 0.1- 091228 118 0.5- 0.1-
091124 B18 0.2+ 0.1- 091126 349 1.6+ 0.8- 091228 118 0.6- 0.2-
091124 B18 0.3- 0.0 091126 349 1.3+ 0.5- 2010/
091124 B18 0.3- 0.6- 091127 585 0.1- 0.6- 100104 215 0.1- 0.3+
091124 B18 0.2- 0.4- 091127 585 0.9- 0.9+ 100104 215 0.1- 0.3+
091124 682 0.5+ 0.1- 091127 585 0.5- 1.0+ 100104 215 0.0 0.2-
091124 682 0.2+ 0.4+ 091127 585 0.1+ 0.9+ 100117 349 1.7+ 0.3+
091124 G96 0.3- 0.1+ 091127 585 1.2+ 1.1+ 100117 349 0.9+ 0.9-
091124 G96 0.8+ 0.2+ 091207 473 0.1+ 0.0 100118 204 0.3- 0.1-
091124 G96 0.3- 0.2+ 091207 473 0.2- 0.1+ 100119 204 0.3- 0.4-
091124 G96 0.1+ 0.3+ 091209 104 0.4- 0.0 100121 204 0.2+ 0.7-
091124 H01 1.0- 0.0 091209 104 0.1- 0.4- 100123 349 0.2- 0.1+
091124 H01 0.9- 0.1+ 091209 104 0.5- 0.7- 100123 349 0.6- 0.2-
091124 H01 1.0- 0.1- 091209 473 0.1- 0.2+
NAKANO
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write mail from CFAD0::NAKANO on 2010-03-22 08:10:35(JST).
◎C/2009 W2の軌道と予報位置
上尾の門田健一氏による１月23日の追跡観測までが報告されています．氏のCCD
全光度は19.5等でした．
なお，前回のCometary Orbitsに注釈したとおり，この彗星は，2007年５月18日
に土星まで1.97 AUまで接近していました．彗星が木星以外の惑星にこの距離まで
接近するのは，めずらしいことです．彗星は，近日点通過の後，2011年10月29日に
木星まで2.91 AUまで接近します．
C/2009 W2 (Boattini)
Epoch 2010 May 4.0 TT = JDT 2455320.5
T 2010 May 1.78143 TT Nakano
q 6.9071911 (2000.0) P Q
z +0.0001017 Peri. 121.33830 +0.21413533 +0.97268284
+/-0.0000697 Node 199.58433 +0.78050676 -0.11520681
e 0.9992977 Incl. 164.48993 +0.58732892 -0.20153284
From 86 observations 2008 Dec. 22-2010 Jan. 23, mean residual 0".60.
(1/a)org.= +0.000427, (1/a)fut.= +0.000469 (+/-0.000070), Q= 6.
The comet has passed 1.97 AU from Saturn on 2007 May 18 and
will pass 2.91 AU from Jupiter on 2011 Oct. 29 UT.
The prediscovery observations in 2008 were found by M. Meyer.
Date/ TT R.A.(2000) Decl. Delta r Daily motion Mag. Moon Age
h h m ｡ , , / PA ｡ m1 ｡
2010 Feb. 15 14 04 47.49 +37 16.1 6.557 6.925 8.2 / 242 18.4 92 .02
16 14 04 46.88 +37 12.2 6.574 6.924 8.0 / 241 18.4 80 .06
17 14 04 46.29 +37 08.3 6.591 6.924 7.9 / 241 18.4 68 .11
18 14 04 45.72 +37 04.4 6.608 6.923 7.7 / 240 18.4 56 .18
19 14 04 45.16 +37 00.6 6.625 6.923 7.5 / 239 18.4 44 .26
20 14 04 44.63 +36 56.8 6.642 6.922 7.3 / 239 18.4 32 .35
21 14 04 44.10 +36 53.0 6.659 6.922 7.2 / 238 18.4 20 .45
22 14 04 43.60 +36 49.2 6.676 6.922 7.0 / 238 18.4 12 .56
23 14 04 43.11 +36 45.4 6.694 6.921 6.8 / 237 18.4 16 .67
24 14 04 42.63 +36 41.7 6.711 6.921 6.6 / 236 18.4 27 .77
25 14 04 42.17 +36 38.0 6.729 6.920 6.5 / 235 18.4 41 .86
26 14 04 41.73 +36 34.3 6.746 6.920 6.3 / 235 18.4 56 .93
27 14 04 41.30 +36 30.7 6.764 6.920 6.1 / 234 18.5 70 .98
28 14 04 40.89 +36 27.1 6.782 6.919 6.0 / 233 18.5 85 1.00
Mar. 1 14 04 40.49 +36 23.5 6.799 6.919 5.8 / 232 18.5 100 .99
2 14 04 40.11 +36 19.9 6.817 6.918 5.7 / 232 18.5 115 .95
3 14 04 39.74 +36 16.4 6.835 6.918 5.5 / 231 18.5 129 .88
4 14 04 39.39 +36 12.9 6.853 6.918 5.3 / 230 18.5 143 .80
5 14 04 39.05 +36 09.5 6.870 6.917 5.2 / 229 18.5 155 .71
6 14 04 38.73 +36 06.1 6.888 6.917 5.0 / 228 18.5 166 .61
7 14 04 38.42 +36 02.7 6.906 6.917 4.9 / 227 18.5 169 .51
8 14 04 38.12 +35 59.4 6.924 6.916 4.7 / 226 18.5 161 .41
9 14 04 37.84 +35 56.1 6.942 6.916 4.6 / 225 18.5 150 .32
10 14 04 37.58 +35 52.9 6.959 6.916 4.5 / 224 18.5 139 .23
11 14 04 37.32 +35 49.6 6.977 6.915 4.3 / 223 18.5 127 .16
12 14 04 37.08 +35 46.5 6.995 6.915 4.2 / 221 18.5 116 .10
13 14 04 36.85 +35 43.3 7.012 6.915 4.0 / 220 18.5 104 .05
14 14 04 36.64 +35 40.2 7.030 6.914 3.9 / 219 18.5 92 .02
15 14 04 36.44 +35 37.2 7.048 6.914 3.8 / 217 18.5 81 .00
16 14 04 36.25 +35 34.2 7.065 6.914 3.7 / 216 18.5 69 .01
17 14 04 36.07 +35 31.2 7.082 6.914 3.5 / 214 18.5 56 .03
18 14 04 35.91 +35 28.3 7.100 6.913 3.4 / 213 18.6 44 .07
19 14 04 35.76 +35 25.4 7.117 6.913 3.3 / 211 18.6 32 .13
20 14 04 35.62 +35 22.6 7.134 6.913 3.2 / 209 18.6 20 .21
21 14 04 35.49 +35 19.8 7.151 6.912 3.1 / 207 18.6 11 .30
22 14 04 35.38 +35 17.0 7.168 6.912 3.0 / 205 18.6 13 .40
23 14 04 35.27 +35 14.3 7.185 6.912 2.9 / 203 18.6 25 .51
24 14 04 35.18 +35 11.6 7.202 6.912 2.8 / 201 18.6 38 .63
25 14 04 35.10 +35 09.0 7.219 6.911 2.7 / 199 18.6 52 .73
26 14 04 35.02 +35 06.4 7.235 6.911 2.6 / 196 18.6 66 .83
27 14 04 34.96 +35 03.9 7.252 6.911 2.6 / 194 18.6 80 .91
28 14 04 34.91 +35 01.4 7.268 6.911 2.5 / 191 18.6 95 .97
29 14 04 34.87 +34 58.9 7.284 6.911 2.4 / 189 18.6 110 .99
30 14 04 34.84 +34 56.5 7.301 6.910 2.4 / 186 18.6 124 .99
31 14 04 34.82 +34 54.2 7.316 6.910 2.3 / 183 18.6 138 .97
Apr. 1 14 04 34.81 +34 51.8 7.332 6.910 2.3 / 180 18.6 151 .92
NAKANO
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write mail from CFAD0::NAKANO on 2010-02-11 05:57:51(JST).
C/2009 W2 (Boattini)
Epoch 2010 May 4.0 TT = JDT 2455320.5
T 2010 May 2.65839 TT Nakano
q 6.9049839 (2000.0) P Q
z +0.0005622 Peri. 121.41601 +0.21520597 +0.97243988
+/-0.0006684 Node 199.59941 +0.78039250 -0.11602495
e 0.9961179 Incl. 164.48892 +0.58708938 -0.20223473
From 73 observations 2009 Nov. 21-2010 Jan. 4, mean residual 0".61.
(1/a)org.= +0.000887, (1/a)fut.= +0.000929 (+/-0.000668), Q= 4.
The comet has passed 1.97 AU from Saturn on 2007 May 18 and
will pass 2.90 AU from Jupiter on 2011 Oct. 29 UT.
NAKANO
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write mail from CFAD0::NAKANO on 2010-01-27 08:20:36(JST).
C/2009 W2 (Boattini)
T 2010 Apr. 2.51394 TT Nakano
q 6.9411326 (2000.0) P Q
Peri. 118.85349 +0.17526155 +0.98052656
Node 199.37339 +0.78434848 -0.08466500
e 1.0 Incl. 164.50770 +0.59504693 -0.17719903
From 48 observations 2009 Nov. 21-27.
NAKANO
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write mail from CFAD0::NAKANO on 2009-12-12 08:25:42(JST).
戻ります。