Comet P/2005 Q4 = 2014 Q4 (LINEAR) K. Sarneczky (Szeged大学, Konkoly天文台 Piszkesteto Stn, ハンガリー)は、8月22日、 恒星状のP/2005 Q4 (LINEAR)を検出した。 G. V. Williamsは、同じ晩より前に、1.8-m Ritchey-Chretien Pan-STARRS望遠鏡で得られ たP/2005 Q4の追加観測を確認した。 検出位置は次のとおり、 2014 UT R.A. (2000) Decl. Mag. Observer Aug. 22.52203 0 18 19.48 -10 53 26.1 20.0 Pan-STARRS 22.53320 0 18 19.16 -10 53 25.5 20.2 " 22.54438 0 18 18.84 -10 53 24.8 20.1 " 22.55558 0 18 18.51 -10 53 24.1 20.2 " 22.99990 0 18 06.64 -10 52 59.1 19.9 Sarneczky 23.00831 0 18 06.39 -10 52 58.6 19.8 " 23.01422 0 18 06.22 -10 52 58.2 19.7 " MPC 75706のG. V. Williamsの予報に対し、Delta(T)は、-0.26 dayであった。 連結軌道要素、位置推算表は次のとおり、 Orbital elements: P/2005 Q4 (LINEAR) Epoch 2005 Sept. 27.0 TT = JDT 2453640.5 T 2005 Sept. 28.24204 TT MPC q 1.7543503 (2000.0) P Q n 0.10466549 Peri. 50.89975 +0.47185530 -0.87963182 a 4.4593035 Node 11.41425 +0.68598795 +0.32352267 e 0.6065865 Incl. 17.64990 +0.55387102 +0.34868458 P 9.42 From 194 observations 2005 Aug. 31-2014 Aug. 23, mean residual 0".5. P/2005 Q4 (LINEAR) Epoch 2015 Feb. 27.0 TT = JDT 2457080.5 T 2015 Feb. 16.51519 TT MPC q 1.7404116 (2000.0) P Q n 0.10535546 Peri. 50.97474 +0.47136102 -0.87990841 a 4.4398131 Node 11.37084 +0.68593667 +0.32311728 e 0.6079989 Incl. 17.66651 +0.55435518 +0.34836246 P 9.36 From 194 observations 2005 Aug. 31-2014 Aug. 23, mean residual 0".5. P/2005 Q4 (LINEAR) Epoch 2024 Mar. 31.0 TT = JDT 2460400.5 T 2024 Mar. 29.00199 TT MPC q 1.6697468 (2000.0) P Q n 0.10763489 Peri. 49.91315 +0.50506182 -0.86154238 a 4.3769073 Node 10.14240 +0.67565223 +0.35751104 e 0.6185099 Incl. 17.02164 +0.53703502 +0.36045886 P 9.16 From 194 observations 2005 Aug. 31-2014 Aug. 23, mean residual 0".5. P/2005 Q4 (LINEAR) Epoch 2014 Dec. 9.0 TT = JDT 2457000.5 T 2015 Feb. 16.50914 TT MPC q 1.7404206 (2000.0) P Q n 0.10535161 Peri. 50.97161 +0.47141158 -0.87988141 a 4.4399211 Node 11.37067 +0.68591851 +0.32315782 e 0.6080064 Incl. 17.66642 +0.55433466 +0.34839306 P 9.36 From 194 observations 2005 Aug. 31-2014 Aug. 23, mean residual 0".5. Ephemeris: P/2005 Q4 (LINEAR) Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 2014 07 25 00 19 43.7 -11 38 19 1.9388 2.6127 121.1 19.4 20.6 ... 2014 08 09 00 21 40.1 -11 09 31 1.7048 2.5200 134.3 16.7 20.2 ... 2014 08 17 00 20 19.2 -10 59 14 1.5939 2.4710 141.9 14.6 19.9 ... 2014 08 23 00 18 06.6 -10 52 54 1.5181 2.4345 147.8 12.8 19.8 2014 08 24 00 17 38.3 -10 51 54 1.5062 2.4284 148.8 12.4 19.7 2014 08 25 00 17 08.3 -10 50 54 1.4945 2.4224 149.8 12.1 19.7 ... 2014 08 31 00 13 32.0 -10 44 41 1.4287 2.3863 155.9 9.9 19.6 ... 2014 09 08 00 07 12.7 -10 34 16 1.3537 2.3386 163.9 6.9 19.3 ... 2014 09 23 23 51 47.2 -09 58 38 1.2561 2.2512 170.0 4.4 19.0 Computer: Williams (CBET 3937、MPEC 2014-Q39)