Comet C/2013 G6 (Lemmon) makes its closest approach to the Earth (1.241 AU) on the 11th May, 2013.
Ephemeris
Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag 2013 05 01 15 11 31.2 -14 57 44 1.2864 2.2863 170.6 4.1 17.6 2013 05 02 15 06 25.1 -15 11 31 1.2778 2.2812 172.8 3.2 17.6 2013 05 03 15 01 14.2 -15 25 03 1.2702 2.2761 175.0 2.2 17.6 2013 05 04 14 55 58.7 -15 38 17 1.2634 2.2710 177.2 1.3 17.6 2013 05 05 14 50 39.1 -15 51 10 1.2575 2.2660 179.3 0.3 17.6 2013 05 06 14 45 16.1 -16 03 41 1.2524 2.2610 178.3 0.7 17.5 2013 05 07 14 39 50.1 -16 15 46 1.2483 2.2561 176.1 1.7 17.5 2013 05 08 14 34 21.6 -16 27 25 1.2451 2.2512 173.9 2.7 17.5 2013 05 09 14 28 51.4 -16 38 35 1.2427 2.2464 171.7 3.7 17.5 2013 05 10 14 23 20.0 -16 49 15 1.2413 2.2416 169.4 4.7 17.5 2013 05 11 14 17 48.0 -16 59 23 1.2408 2.2369 167.2 5.7 17.5 2013 05 12 14 12 16.1 -17 08 59 1.2412 2.2322 165.0 6.7 17.5 2013 05 13 14 06 44.9 -17 18 02 1.2424 2.2276 162.7 7.7 17.4 2013 05 14 14 01 14.9 -17 26 30 1.2446 2.2230 160.5 8.7 17.4 2013 05 15 13 55 46.9 -17 34 25 1.2476 2.2185 158.3 9.7 17.4 2013 05 16 13 50 21.3 -17 41 45 1.2514 2.2140 156.1 10.7 17.4 2013 05 17 13 44 58.7 -17 48 32 1.2561 2.2095 153.9 11.6 17.4 2013 05 18 13 39 39.7 -17 54 45 1.2617 2.2052 151.7 12.5 17.4 2013 05 19 13 34 24.8 -18 00 26 1.2680 2.2009 149.6 13.5 17.4 2013 05 20 13 29 14.3 -18 05 35 1.2751 2.1966 147.4 14.4 17.4 2013 05 21 13 24 08.8 -18 10 14 1.2830 2.1924 145.3 15.2 17.5 2013 05 22 13 19 08.6 -18 14 24 1.2917 2.1882 143.2 16.1 17.5 2013 05 23 13 14 14.0 -18 18 06 1.3010 2.1841 141.2 16.9 17.5 2013 05 24 13 09 25.3 -18 21 22 1.3110 2.1800 139.1 17.7 17.5 2013 05 25 13 04 42.8 -18 24 13 1.3218 2.1760 137.1 18.5 17.5 2013 05 26 13 00 06.8 -18 26 41 1.3331 2.1721 135.2 19.2 17.5 2013 05 27 12 55 37.3 -18 28 49 1.3451 2.1682 133.2 19.9 17.5 2013 05 28 12 51 14.5 -18 30 37 1.3576 2.1644 131.3 20.6 17.5 2013 05 29 12 46 58.6 -18 32 07 1.3708 2.1606 129.4 21.3 17.5 2013 05 30 12 42 49.5 -18 33 22 1.3844 2.1569 127.5 21.9 17.5 2013 05 31 12 38 47.4 -18 34 22 1.3986 2.1532 125.6 22.5 17.6
Date TT R. A. (2000) Decl. Delta r Elong. Phase Mag 2013 04 13 16 24 40.2 -10 45 21 1.5618 2.3855 135.8 17.0 18.2 2013 04 14 16 21 36.0 -10 58 12 1.5414 2.3796 137.5 16.5 18.2 2013 04 15 16 18 25.0 -11 11 16 1.5216 2.3737 139.3 16.0 18.2 2013 04 16 16 15 07.0 -11 24 34 1.5022 2.3679 141.0 15.5 18.1 2013 04 17 16 11 42.0 -11 38 05 1.4833 2.3621 142.8 14.9 18.1 2013 04 18 16 08 09.9 -11 51 47 1.4649 2.3564 144.6 14.3 18.1 2013 04 19 16 04 30.6 -12 05 41 1.4472 2.3507 146.5 13.7 18.0 2013 04 20 16 00 44.0 -12 19 44 1.4300 2.3450 148.3 13.0 18.0 2013 04 21 15 56 50.3 -12 33 56 1.4133 2.3394 150.2 12.3 17.9 2013 04 22 15 52 49.3 -12 48 16 1.3974 2.3338 152.2 11.6 17.9 2013 04 23 15 48 41.1 -13 02 41 1.3820 2.3283 154.1 10.9 17.9 2013 04 24 15 44 25.8 -13 17 10 1.3674 2.3228 156.1 10.1 17.8 2013 04 25 15 40 03.4 -13 31 42 1.3534 2.3173 158.1 9.3 17.8 2013 04 26 15 35 34.1 -13 46 14 1.3402 2.3119 160.1 8.5 17.8 2013 04 27 15 30 58.1 -14 00 44 1.3277 2.3065 162.2 7.7 17.7 2013 04 28 15 26 15.5 -14 15 10 1.3160 2.3012 164.3 6.8 17.7 2013 04 29 15 21 26.6 -14 29 31 1.3050 2.2959 166.4 5.9 17.7 2013 04 30 15 16 31.6 -14 43 42 1.2948 2.2907 168.5 5.0 17.7
Orbital elements: C/2013 G6 (Lemmon) T 2013 July 25.03130 TT MPC q 2.0492033 (2000.0) P Q Peri. 215.63572 -0.80837844 +0.09514526 Node 44.56670 -0.11777370 +0.94075836 e 1.0 Incl. 124.12317 -0.57676135 -0.32545519 From 48 observations 2013 Apr. 13-16.
MPEC 2013 - H07
Key to Orbital elements
Comet C/2013 G6 (LEMMON) was discovered on the 13th April, 2013, by the Mount Lemmon Survey. The preliminary orbital elements of the comet indicate a perihelion passage on the 25th July, 2013, at a distance of 2.0 au from the Sun.