| Mercury Elongation Depiction | Evening Elongation of May 17, 2021 | | | | May 3 7:35 PM 13.5° alt | May 6 7:37 PM 16° alt | May 9 7:39 PM 17.8° alt | May 12 7:41 PM 19.1° alt | May 15 7:44 PM 19.5° alt | May 18, 2021 Sunset: 7:46 PM 19.5° alt | May 21 7:48 PM 18.8° alt | May 24 7:50 PM 17.4° alt | May 27 7:52 PM 15.3° alt | May 30 7:54 PM 12.5° alt | Jun 2 7:56 PM 9° alt | -1.0 mV 5.87" 77% illum
| -0.7 mV 6.22" 68% illum
| -0.5 mV 6.64" 59% illum
| -0.2 mV 7.12" 50% illum
| +0.1 mV 7.65" 42% illum
| +0.4 mV 8.24" 35% illum
| +0.8 mV 8.87" 28% illum
| +1.3 mV 9.54" 21% illum
| +1.8 mV 10.21" 16% illum
| +2.5 mV 10.85" 11% illum
| +3.4 mV 11.43" 6% illum
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| Date | Sunset | Alt at Sunset | Sets At | Magnitude | Diameter | Phase Angle | Illum | Illum Arcsec | Tilt | Distance | | April 27, 2021 | 7:31 PM | 8.7 | | -1.5 mV | 5.4" | 31° | 93% | 21 | +0.0° NP | 116,820,922 | April 28, 2021 | 7:32 PM | 9.7 | | -1.4 mV | 5.4" | 35° | 91% | 21 | +0.0° NP | 115,392,767 | April 29, 2021 | 7:32 PM | 10.9 | | -1.3 mV | 5.5" | 40° | 88% | 21 | +0.0° NP | 113,851,520 | April 30, 2021 | 7:33 PM | 11.8 | | -1.2 mV | 5.6" | 44° | 86% | 21 | +0.0° NP | 112,205,422 | May 1, 2021 | 7:34 PM | 12.7 | | -1.2 mV | 5.7" | 48° | 83% | 21 | +0.0° NP | 110,463,919 | May 2, 2021 | 7:35 PM | 13.5 | | -1.1 mV | 5.8" | 52° | 81% | 21 | +0.0° NP | 108,637,363 | May 3, 2021 | 7:35 PM | 14.5 | | -1.0 mV | 5.9" | 56° | 78% | 21 | +0.0° NP | 106,736,706 | May 4, 2021 | 7:36 PM | 15.3 | | -0.9 mV | 6.0" | 60° | 75% | 21 | +0.0° NP | 104,773,185 | May 5, 2021 | 7:37 PM | 16.0 | | -0.8 mV | 6.1" | 64° | 72% | 21 | +0.0° NP | 102,758,044 | May 6, 2021 | 7:38 PM | 16.6 | | -0.7 mV | 6.2" | 68° | 69% | 21 | +0.0° NP | 100,702,289 | May 7, 2021 | 7:38 PM | 17.3 | | -0.7 mV | 6.3" | 72° | 65% | 21 | +0.0° NP | 98,616,490 | May 8, 2021 | 7:39 PM | 17.8 | | -0.6 mV | 6.5" | 76° | 62% | 21 | +0.0° NP | 96,510,644 | May 9, 2021 | 7:40 PM | 18.2 | | -0.5 mV | 6.6" | 79° | 59% | 21 | +0.0° NP | 94,394,073 | May 10, 2021 | 7:41 PM | 18.6 | | -0.4 mV | 6.8" | 83° | 56% | 20 | +0.0° NP | 92,275,376 | May 11, 2021 | 7:41 PM | 19.1 | | -0.3 mV | 6.9" | 86° | 53% | 20 | +0.0° NP | 90,162,418 | May 12, 2021 | 7:42 PM | 19.3 | | -0.2 mV | 7.1" | 89° | 51% | 20 | +0.0° NP | 88,062,340 | May 13, 2021 | 7:43 PM | 19.4 | | -0.1 mV | 7.3" | 92° | 48% | 20 | +0.0° NP | 85,981,600 | May 14, 2021 | 7:44 PM | 19.5 | | -0.0 mV | 7.5" | 96° | 45% | 20 | +0.0° NP | 83,926,023 | May 15, 2021 | 7:44 PM | 19.7 | | +0.1 mV | 7.6" | 99° | 42% | 19 | +0.0° NP | 81,900,862 | May 16, 2021 | 7:45 PM | 19.6 | | +0.2 mV | 7.8" | 102° | 40% | 19 | +0.0° NP | 79,910,867 | May 17, 2021 | 7:46 PM | 19.5 | | +0.3 mV | 8.0" | 105° | 37% | 19 | +0.0° NP | 77,960,351 | May 18, 2021 | 7:47 PM | 19.3 | | +0.4 mV | 8.2" | 108° | 35% | 19 | +0.0° NP | 76,053,257 | May 19, 2021 | 7:47 PM | 19.2 | | +0.6 mV | 8.4" | 110° | 33% | 18 | +0.0° NP | 74,193,221 | May 20, 2021 | 7:48 PM | 18.8 | | +0.7 mV | 8.6" | 113° | 30% | 18 | +0.0° NP | 72,383,635 | May 21, 2021 | 7:49 PM | 18.3 | | +0.8 mV | 8.9" | 116° | 28% | 17 | +0.0° NP | 70,627,698 | May 22, 2021 | 7:49 PM | 18.0 | | +1.0 mV | 9.1" | 119° | 26% | 17 | +0.0° NP | 68,928,471 | May 23, 2021 | 7:50 PM | 17.4 | | +1.1 mV | 9.3" | 122° | 24% | 16 | +0.0° NP | 67,288,911 | May 24, 2021 | 7:51 PM | 16.7 | | +1.3 mV | 9.5" | 125° | 22% | 15 | +0.0° NP | 65,711,915 | May 25, 2021 | 7:51 PM | 16.1 | | +1.4 mV | 9.7" | 127° | 20% | 15 | +0.0° NP | 64,200,343 | May 26, 2021 | 7:52 PM | 15.3 | | +1.6 mV | 10.0" | 130° | 18% | 14 | +0.0° NP | 62,757,042 | May 27, 2021 | 7:53 PM | 14.3 | | +1.8 mV | 10.2" | 133° | 16% | 13 | +0.0° NP | 61,384,854 | May 28, 2021 | 7:53 PM | 13.5 | | +2.0 mV | 10.4" | 136° | 14% | 12 | +0.0° NP | 60,086,627 | May 29, 2021 | 7:54 PM | 12.5 | | +2.3 mV | 10.6" | 139° | 12% | 11 | +0.0° NP | 58,865,215 | May 30, 2021 | 7:55 PM | 11.3 | | +2.5 mV | 10.8" | 142° | 11% | 10 | +0.0° NP | 57,723,473 | May 31, 2021 | 7:55 PM | 10.3 | | +2.8 mV | 11.0" | 145° | 9% | 9 | +0.0° NP | 56,664,250 | June 1, 2021 | 7:56 PM | 9.0 | | +3.0 mV | 11.2" | 148° | 8% | 8 | +0.0° NP | 55,690,365 | June 2, 2021 | 7:56 PM | 7.9 | | +3.3 mV | 11.4" | 151° | 6% | 6 | +0.0° NP | 54,804,590 | June 3, 2021 | 7:57 PM | 6.5 | | +3.7 mV | 11.6" | 154° | 5% | 5 | +0.0° NP | 54,009,615 | June 4, 2021 | 7:57 PM | 5.3 | | +4.0 mV | 11.7" | 157° | 4% | 4 | +0.0° NP | 53,308,009 | June 5, 2021 | 7:58 PM | 3.8 | | +4.3 mV | 11.9" | 160° | 3% | 3 | +0.0° NP | 52,702,177 | June 6, 2021 | 7:58 PM | 2.5 | | +4.7 mV | 12.0" | 163° | 2% | 2 | +0.0° NP | 52,194,316 | June 7, 2021 | 7:59 PM | 0.9 | | +5.1 mV | 12.1" | 166° | 2% | 2 | +0.0° NP | 51,786,365 |
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