Comet 117P/Helin-Roman-Alu 1 is at Opposition (2.117 AU) on the 30th July 2014
Comet 117P/Helin-Roman-Alu 1 makes its closest approach to the Earth (2.115 AU) on the 26th July 2014
Ephemeris
Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag 2014 07 25 20 54 30.8 -29 44 05 2.1153 3.1129 166.8 4.3 14.0 2014 07 26 20 53 48.6 -29 48 08 2.1151 3.1138 167.2 4.1 14.0 2014 07 27 20 53 06.1 -29 52 05 2.1152 3.1147 167.6 4.0 14.0 2014 07 28 20 52 23.2 -29 55 57 2.1156 3.1157 167.8 3.9 14.0 2014 07 29 20 51 40.1 -29 59 43 2.1163 3.1166 168.0 3.9 14.0 2014 07 30 20 50 56.9 -30 03 22 2.1172 3.1176 168.1 3.9 14.0 2014 07 31 20 50 13.4 -30 06 55 2.1183 3.1185 168.0 3.9 14.0 2014 08 01 20 49 30.0 -30 10 21 2.1198 3.1195 167.9 3.9 14.0 2014 08 02 20 48 46.4 -30 13 40 2.1215 3.1205 167.7 4.0 14.0 2014 08 03 20 48 03.0 -30 16 53 2.1235 3.1215 167.3 4.1 14.0 2014 08 04 20 47 19.5 -30 19 58 2.1257 3.1224 166.9 4.2 14.0 2014 08 05 20 46 36.3 -30 22 55 2.1283 3.1234 166.4 4.4 14.0 2014 08 06 20 45 53.2 -30 25 46 2.1310 3.1244 165.9 4.6 14.0 2014 08 07 20 45 10.3 -30 28 28 2.1341 3.1255 165.2 4.7 14.0 2014 08 08 20 44 27.8 -30 31 03 2.1374 3.1265 164.6 5.0 14.1 2014 08 09 20 43 45.5 -30 33 30 2.1410 3.1275 163.8 5.2 14.1 2014 08 10 20 43 03.7 -30 35 49 2.1448 3.1285 163.1 5.4 14.1
Comet 117P/Helin-Roman-Alu is at Perihelion (3.056 AU) on the 27th March 2014
Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag 2014 03 28 20 10 06.7 -25 41 53 3.2865 3.0563 68.0 17.6 14.8 2014 03 29 20 11 26.9 -25 40 30 3.2740 3.0564 68.7 17.7 14.8 2014 03 30 20 12 46.5 -25 39 08 3.2614 3.0564 69.4 17.8 14.8 2014 03 31 20 14 05.4 -25 37 47 3.2488 3.0564 70.1 17.9 14.8 2014 04 01 20 15 23.7 -25 36 27 3.2362 3.0564 70.8 18.0 14.8 2014 04 02 20 16 41.3 -25 35 09 3.2235 3.0565 71.5 18.1 14.7 2014 04 03 20 17 58.3 -25 33 51 3.2108 3.0565 72.2 18.1 14.7 2014 04 04 20 19 14.6 -25 32 36 3.1980 3.0566 72.9 18.2 14.7 2014 04 05 20 20 30.2 -25 31 21 3.1852 3.0566 73.6 18.3 14.7 2014 04 06 20 21 45.1 -25 30 08 3.1724 3.0567 74.3 18.4 14.7 2014 04 07 20 22 59.3 -25 28 57 3.1595 3.0568 75.0 18.4 14.7 2014 04 08 20 24 12.8 -25 27 48 3.1466 3.0569 75.7 18.5 14.7 2014 04 09 20 25 25.6 -25 26 41 3.1337 3.0570 76.4 18.6 14.7 2014 04 10 20 26 37.7 -25 25 35 3.1208 3.0571 77.1 18.6 14.7 2014 04 11 20 27 49.1 -25 24 32 3.1078 3.0572 77.8 18.7 14.7 2014 04 12 20 28 59.7 -25 23 31 3.0948 3.0573 78.5 18.7 14.7 2014 04 13 20 30 09.6 -25 22 32 3.0818 3.0575 79.2 18.8 14.7 2014 04 14 20 31 18.7 -25 21 35 3.0687 3.0576 80.0 18.8 14.6 2014 04 15 20 32 27.0 -25 20 41 3.0557 3.0578 80.7 18.9 14.6 2014 04 16 20 33 34.6 -25 19 49 3.0426 3.0579 81.4 18.9 14.6 2014 04 17 20 34 41.4 -25 19 01 3.0295 3.0581 82.1 19.0 14.6 2014 04 18 20 35 47.4 -25 18 14 3.0164 3.0582 82.9 19.0 14.6 2014 04 19 20 36 52.6 -25 17 31 3.0033 3.0584 83.6 19.0 14.6 2014 04 20 20 37 57.0 -25 16 51 2.9902 3.0586 84.3 19.1 14.6 2014 04 21 20 39 00.6 -25 16 14 2.9770 3.0588 85.1 19.1 14.6 2014 04 22 20 40 03.3 -25 15 40 2.9639 3.0590 85.8 19.1 14.6 2014 04 23 20 41 05.2 -25 15 09 2.9508 3.0592 86.5 19.1 14.6 2014 04 24 20 42 06.2 -25 14 42 2.9376 3.0594 87.3 19.2 14.6 2014 04 25 20 43 06.4 -25 14 18 2.9245 3.0597 88.0 19.2 14.5 2014 04 26 20 44 05.6 -25 13 58 2.9114 3.0599 88.8 19.2 14.5 2014 04 27 20 45 04.0 -25 13 42 2.8982 3.0601 89.5 19.2 14.5 2014 04 28 20 46 01.4 -25 13 30 2.8851 3.0604 90.3 19.2 14.5 2014 04 29 20 46 58.0 -25 13 21 2.8720 3.0607 91.0 19.2 14.5 2014 04 30 20 47 53.6 -25 13 16 2.8589 3.0609 91.8 19.2 14.5
Comet 117P/Helin-Roman-Alu makes its closest approach to the Earth (2.425 AU) on the 7th May, 2013.
Comet 117P/Helin-Roman-Alu is at Opposition (2.433 AU) on the 29th April, 2013
Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag 2013 04 27 14 31 55.8 -10 21 26 2.4387 3.4425 175.1 1.4 15.2 2013 04 28 14 31 13.4 -10 19 53 2.4360 3.4405 175.5 1.3 15.2 2013 04 29 14 30 30.9 -10 18 22 2.4335 3.4386 175.7 1.3 15.2 2013 04 30 14 29 48.2 -10 16 51 2.4314 3.4366 175.6 1.3 15.2 2013 05 01 14 29 05.4 -10 15 22 2.4296 3.4346 175.2 1.4 15.1 2013 05 02 14 28 22.6 -10 13 55 2.4280 3.4326 174.6 1.6 15.1 2013 05 03 14 27 39.8 -10 12 29 2.4268 3.4306 173.8 1.8 15.1 2013 05 04 14 26 57.1 -10 11 05 2.4258 3.4286 172.9 2.1 15.1 2013 05 05 14 26 14.4 -10 09 42 2.4251 3.4267 172.0 2.4 15.1 2013 05 06 14 25 31.9 -10 08 22 2.4247 3.4247 171.0 2.6 15.1 2013 05 07 14 24 49.5 -10 07 05 2.4246 3.4227 170.0 2.9 15.1 2013 05 08 14 24 07.4 -10 05 50 2.4248 3.4208 168.9 3.2 15.1 2013 05 09 14 23 25.5 -10 04 37 2.4252 3.4188 167.9 3.6 15.1 2013 05 10 14 22 43.9 -10 03 27 2.4259 3.4168 166.8 3.9 15.1 2013 05 11 14 22 02.6 -10 02 20 2.4270 3.4149 165.7 4.2 15.1 2013 05 12 14 21 21.7 -10 01 17 2.4282 3.4129 164.7 4.5 15.1 2013 05 13 14 20 41.3 -10 00 16 2.4298 3.4110 163.6 4.8 15.1 2013 05 14 14 20 01.3 -09 59 19 2.4317 3.4090 162.5 5.1 15.1 2013 05 15 14 19 21.7 -09 58 26 2.4338 3.4071 161.4 5.4 15.1 2013 05 16 14 18 42.8 -09 57 36 2.4362 3.4051 160.3 5.7 15.1 2013 05 17 14 18 04.3 -09 56 50 2.4388 3.4032 159.2 6.1 15.1 2013 05 18 14 17 26.5 -09 56 08 2.4417 3.4013 158.1 6.4 15.1 2013 05 19 14 16 49.3 -09 55 30 2.4449 3.3993 157.0 6.7 15.1 2013 05 20 14 16 12.8 -09 54 56 2.4483 3.3974 155.9 7.0 15.1 2013 05 21 14 15 37.0 -09 54 27 2.4520 3.3955 154.8 7.3 15.1 2013 05 22 14 15 01.9 -09 54 02 2.4560 3.3936 153.8 7.6 15.1 2013 05 23 14 14 27.5 -09 53 41 2.4601 3.3916 152.7 7.9 15.1 2013 05 24 14 13 53.9 -09 53 25 2.4646 3.3897 151.6 8.2 15.1 2013 05 25 14 13 21.2 -09 53 13 2.4692 3.3878 150.5 8.5 15.1 2013 05 26 14 12 49.2 -09 53 07 2.4741 3.3859 149.5 8.7 15.1 2013 05 27 14 12 18.1 -09 53 05 2.4793 3.3840 148.4 9.0 15.1 2013 05 28 14 11 47.9 -09 53 08 2.4846 3.3821 147.3 9.3 15.1 2013 05 29 14 11 18.6 -09 53 16 2.4902 3.3802 146.3 9.6 15.1 2013 05 30 14 10 50.2 -09 53 29 2.4961 3.3783 145.2 9.9 15.1 2013 05 31 14 10 22.7 -09 53 47 2.5021 3.3764 144.1 10.1 15.1