Comet C/2015 F4 (Jacques) is at Perihelion (1.644 AU) in the constellation Lyra on the 10th August 2015
Ephemeris
Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag 2015 08 09 19 19 58.1 +34 32 23 0.8580 1.6441 122.7 31.3 12.8 2015 08 10 19 18 04.3 +35 04 21 0.8657 1.6440 121.8 31.6 12.8 2015 08 11 19 16 13.1 +35 35 03 0.8736 1.6439 121.0 31.9 12.9 2015 08 12 19 14 24.6 +36 04 28 0.8816 1.6440 120.2 32.2 12.9 2015 08 13 19 12 39.0 +36 32 40 0.8898 1.6442 119.4 32.5 12.9 2015 08 14 19 10 56.5 +36 59 40 0.8981 1.6445 118.6 32.7 12.9 2015 08 15 19 09 17.0 +37 25 31 0.9065 1.6449 117.8 33.0 12.9 2015 08 16 19 07 40.7 +37 50 15 0.9151 1.6454 117.1 33.2 13.0 2015 08 17 19 06 07.7 +38 13 53 0.9238 1.6460 116.4 33.5 13.0 2015 08 18 19 04 38.0 +38 36 29 0.9326 1.6467 115.6 33.7 13.0 2015 08 19 19 03 11.9 +38 58 04 0.9414 1.6475 114.9 33.9 13.0 2015 08 20 19 01 49.2 +39 18 40 0.9504 1.6484 114.2 34.0 13.1 2015 08 21 19 00 30.1 +39 38 20 0.9595 1.6495 113.6 34.2 13.1 2015 08 22 18 59 14.5 +39 57 06 0.9686 1.6506 112.9 34.4 13.1 2015 08 23 18 58 02.7 +40 15 01 0.9778 1.6518 112.3 34.5 13.1 2015 08 24 18 56 54.5 +40 32 05 0.9870 1.6532 111.7 34.6 13.2 2015 08 25 18 55 50.0 +40 48 22 0.9963 1.6547 111.0 34.8 13.2 2015 08 26 18 54 49.2 +41 03 53 1.0057 1.6562 110.4 34.9 13.2 2015 08 27 18 53 52.2 +41 18 40 1.0151 1.6579 109.9 35.0 13.2 2015 08 28 18 52 58.8 +41 32 46 1.0245 1.6597 109.3 35.1 13.3 2015 08 29 18 52 09.3 +41 46 11 1.0339 1.6615 108.8 35.1 13.3 2015 08 30 18 51 23.4 +41 58 58 1.0434 1.6635 108.2 35.2 13.3 2015 08 31 18 50 41.2 +42 11 08 1.0529 1.6656 107.7 35.3 13.3
Comet C/2015 F4 (Jacques) makes its closest approach to the Earth (0.754 AU) in the constellation Aquila on the 16th July 2015
Comet C/2015 F4 (Jacques) is at Opposition (0.772 AU) in the constellation Delphinus on the 7th July 2015
Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag 2015 07 01 20 38 00.7 -01 04 04 0.8052 1.7310 143.4 20.5 12.9 2015 07 02 20 36 34.1 -00 01 39 0.7986 1.7269 143.8 20.3 12.9 2015 07 03 20 35 04.4 +01 01 22 0.7925 1.7229 144.2 20.2 12.9 2015 07 04 20 33 31.6 +02 04 57 0.7868 1.7190 144.5 20.1 12.8 2015 07 05 20 31 55.8 +03 08 59 0.7816 1.7152 144.7 20.0 12.8 2015 07 06 20 30 17.0 +04 13 25 0.7768 1.7115 144.9 20.0 12.8 2015 07 07 20 28 35.3 +05 18 08 0.7724 1.7079 145.0 20.0 12.8 2015 07 08 20 26 50.7 +06 23 04 0.7685 1.7043 145.0 20.0 12.7 2015 07 09 20 25 03.4 +07 28 07 0.7651 1.7009 145.0 20.1 12.7 2015 07 10 20 23 13.3 +08 33 10 0.7622 1.6976 144.9 20.2 12.7 2015 07 11 20 21 20.7 +09 38 09 0.7596 1.6943 144.7 20.3 12.7 2015 07 12 20 19 25.7 +10 42 57 0.7576 1.6912 144.4 20.5 12.7 2015 07 13 20 17 28.2 +11 47 28 0.7560 1.6881 144.1 20.7 12.7 2015 07 14 20 15 28.6 +12 51 36 0.7549 1.6851 143.7 20.9 12.7 2015 07 15 20 13 26.9 +13 55 15 0.7542 1.6823 143.2 21.2 12.6 2015 07 16 20 11 23.2 +14 58 20 0.7539 1.6795 142.7 21.5 12.6 2015 07 17 20 09 17.8 +16 00 44 0.7541 1.6769 142.1 21.8 12.6 2015 07 18 20 07 10.7 +17 02 22 0.7548 1.6743 141.5 22.2 12.6 2015 07 19 20 05 02.2 +18 03 10 0.7558 1.6718 140.8 22.6 12.6 2015 07 20 20 02 52.5 +19 03 01 0.7573 1.6695 140.1 23.0 12.6 2015 07 21 20 00 41.6 +20 01 53 0.7592 1.6672 139.4 23.4 12.6 2015 07 22 19 58 29.9 +20 59 39 0.7615 1.6651 138.6 23.8 12.6 2015 07 23 19 56 17.4 +21 56 17 0.7641 1.6630 137.8 24.3 12.6 2015 07 24 19 54 04.4 +22 51 44 0.7672 1.6610 136.9 24.7 12.6 2015 07 25 19 51 51.1 +23 45 55 0.7706 1.6592 136.1 25.1 12.6 2015 07 26 19 49 37.6 +24 38 48 0.7744 1.6574 135.2 25.6 12.6 2015 07 27 19 47 24.2 +25 30 22 0.7785 1.6558 134.3 26.0 12.6 2015 07 28 19 45 11.0 +26 20 33 0.7830 1.6543 133.4 26.5 12.7 2015 07 29 19 42 58.3 +27 09 21 0.7878 1.6528 132.5 26.9 12.7 2015 07 30 19 40 46.2 +27 56 44 0.7929 1.6515 131.6 27.4 12.7 2015 07 31 19 38 34.8 +28 42 42 0.7982 1.6503 130.6 27.8 12.7