[continued from previous message]

May 16 - Forrest Petersen's 95th Birthday (1922)
May 17 - Mercury At Its Greatest Western Elongation (26 Degrees)
May 17 - Comet C/2017 A1 (PANSTARRS) Perihelion (2.290 AU)
May 17 - Asteroid 3 Juno Occults TYC 5141-02016-1 (10.7 Magnitude Star)
May 17 - Apollo Asteroid 4341 Poseidon Closest Approach To Earth (0.930 AU)
May 17 - Asteroid 5430 Luu Closest Approach To Earth (1.004 AU)
May 17 - Asteroid 144633 Georgecarroll Closest Approach To Earth (1.985 AU)
* May 17 - Asteroid 241418 Darmstadt Closest Approach To Earth (2.466 AU)
May 17 - Kuiper Belt Object 65407 (2002 RP120) At Opposition (28.250 AU)
May 17 - Kuiper Belt Object 2015 KH162 At Opposition (58.435 AU)
May 18 - Comet 169P/NEAT At Opposition (2.600 AU)
May 18 - Apollo Asteroid 4581 Asciepius Closest Approach To Earth (0.365 AU)
May 18 - Asteroid 9969 Braille Closest Approach To Earth (0.818 AU)
May 18 - Asteroid 1225 Ariane Closest Approach To Earth (1.311 AU)
May 18 - Asteroid 2309 Mr. Spock Closest Approach To Earth (2.295 AU)
May 18 - Jeana Yeager's 65th Birthday (1952)
May 18 - Robert Verish's 70th Birthday (1947)
May 19 - Comet C/2016 A8 (LINEAR) Closest Approach To Earth (2.639 AU)
May 19 - Comet C/2014 OE4 (PANSTARRS) Closest Approach To Earth (6.247 AU)
* May 19 - Asteroid 3153 Lincoln Closest Approach To Earth (1.680 AU)
May 19 - Asteroid 15058 Billcooke Closest Approach To Earth (2.608 AU)
May 20 - Moon Occults Neptune
May 20 - Comet C/2016 T1 (Matheny) At Opposition (1.578 AU)
May 20 - Comet 229P/Gibbs Perihelion (2.456 AU)
May 20 - Comet C/2014 W5 (Lemmon-PANSTARRS) At Opposition (4.219 AU)
May 20 - Comet C/2015 T2 (PANSTARRS) Perihelion (6.935 AU)
May 20 - Asteroid 20103 de Vico Closest Approach To Earth (1.277 AU)
May 20 - Asteroid 6542 Jacquescousteau Closest Approach To Earth (1.347 AU)
May 21 - Asteroid 3 Juno Occults TYC 5141-02154-1 (12.1 Magnitude Star)
May 21 - Asteroid 6268 Versailles Closest Approach To Earth (1.715 AU)
May 21 - 90th Anniversary (1927), Charles Linbergh Completes 1st Solo Non-Stop Transatlantic Flight
May 21 - Ruth Bancroft Law's 130th Birthday (1887)
May 21 - Gaspard-Gustave de Coriolis' 225th Birthday (1792)
May 22 - Cassini, Distant Flyby of Atlas, Janus & Aegaeon
May 22 - Comet 130P/McNaught-Hughes Closest Approach To Earth (1.691 AU)
May 22 - Comet P/2015 D6 (Lemmon-PANSTARRS) At Opposition (4.528 AU)
May 22 - Asteroid 1069 Planckia Closest Approach To Earth (2.001 AU)
May 22 - Asteroid 4115 Peternorton Closest Approach To Earth (2.019 AU)
May 22 - 5th Anniversary (2012), Katol Meteorite Fall (Hit Houses in India)
May 22 - 65th Anniversary (1952), Aerobee Launch (Monkeys Patricia & Mike)
May 23 - Apollo Asteroid 2015 VX105 Near-Earth Flyby (0.069 AU)
May 23 - Aten Asteroid 5381 Sekmet Closest Approach To Earth (0.802 AU)
May 23 - Asteroid 2521 Heidi Closest Approach To Earth (1.697 AU)
May 23 - Asteroid 4279 De Gasparis Closest Approach To Earth (1.842 AU)
May 23 - Asteroid 9499 Excalibur Closest Approach To Earth (1.937 AU)
May 23 - Lucy McFadden's 65th Birthday (1952)
May 24 - Cassini, Distant Flyby of Titan
May 24 - Plutino 38628 Huya At Opposition (27.595 AU)
May 24 - Plutino 2006 HJ123 At Opposition (33.410 AU)
May 24 - 55th Anniversary (1962), Aurora 7 Launch (Scott Carpenter)
May 25 - Towel Day - Annual Tribute to Douglas Adams
May 25 - Comet 65P/Gunn At Opposition (1.986 AU)
May 25 - Comet C/2016 B1 (NEOWISE) Closest Approach To Earth (2.895 AU)
May 25 - Asteroid 376 Geometria Closest Approach To Earth (0.902 AU)
May 25 - Asteroid 2074 Shoemaker Closest Approach To Earth (1.054 AU)
May 25 - Asteroid 15907 Robot Closest Approach To Earth (1.097 AU)
May 25 - Asteroid 9007 James Bond Closest Approach To Earth (1.747 AU)
May 26 - Comet 73P-AI/Schwassmann-Wachmann Near-Earth Flyby (0.023 AU)
May 26 - Comet 148P/Anderson-LINEAR At Opposition (3.799 AU)
May 26 - Asteroid 3017 Petrovic Occults HIP 68705 (6.3 Magnitude Star)
May 26 - Asteroid 163693 Atira Closest Approach To Earth (0.356 AU)
* May 26 - Asteroid 38237 Roche Closest Approach To Earth (0.996 AU)
May 26 - Asteroid 2933 Amber Closest Approach To Earth (1.624 AU)
May 26 - 85th Anniversary (1932), Kuznetzovo Meteorite Fall in Russia
May 26 - Abraham de Moivre's 150th Birthday (1867)
May 27 - Aten Asteroid 2016 GK135 Near-Earth Flyby (0.074 AU)
May 27 - Apollo Asteroid 6063 Jason Near-Earth Flyby (0.099 AU)
* May 27 - Asteroid 12413 Johnnyweir Closest Approach To Earth (1.356 AU)
May 28 - Cassini, Distant Flyby of Pandora, Mimas, Aegaeon & Prometheus
May 28 - Moon Occults Asteroid 433 Eros
May 28 - Comet 150P/LONEOS Closest Approach To Earth (2.156 AU)
May 28 - Comet 194P/LINEAR At Opposition (2.954 AU)
* May 28 - Comet 110P/Hartley At Opposition (3.479 AU)
May 28 - Asteroid 11548 Jerrylewis Closest Approach To Earth (1.652 AU)
May 28 - Ruby Payne-Scott's 105th Birthday (1912)
May 29 - Comet C/2015 V2 (Johnson) At Opposition (0.821 AU)
May 29 - Apollo Asteroid 2017 CS Near-Earth Flyby (0.020 AU)
May 29 - Apollo Asteroid 481532 (2007 LE) Near-Earth Flyby (0.082 AU)
* May 29 - Asteroid 3066 McFadden Closest Approach To Earth (1.691 AU)
May 29 - Kuiper Belt Object 2007 JH43 At Opposition (39.549 AU)
May 29 - John F. Kennedy's 100th Birthday (1917)
May 29 - Johannes Winkler's 120th Birthday (1897)
May 30 - Comet 65P/Gunn Closest Approach To Earth (1.982 AU)
May 30 - Comet 207P/NEAT At Opposition (2.686 AU)
May 30 - Comet 137P/Shoemaker-Levy At Opposition (3.529 AU)
May 30 - Comet C/2016 E1 (PANSTARRS) Perihelion (8.179 AU)
May 30 - Asteroid 8249 Gershwin Closest Approach To Earth (1.132 AU)
May 30 - Asteroid 2004 Lexell Closest Approach To Earth (1.332 AU)
* May 30 - Asteroid 4758 Hermitage Closest Approach To Earth (2.244 AU)
May 30 - Asteroid 4513 Louvre Closest Approach To Earth (2.252 AU)
May 30 - Asteroid 886 Washingtonia Closest Approach To Earth (2.384 AU)
May 31 - Moon Occults Regulus
May 31 - Comet 216P/LINEAR At Opposition (2.325 AU)
May 31 - Comet C/2015 TQ209 (LINEAR) At Opposition (2.749 AU)
May 31 - Atira Asteroid 2013 JX28 Closest Approach To Earth (1.145 AU)
* May 31 - Asteroid 4487 Pocahontas Closest Approach To Earth (2.098 AU)
May 31 - Martin Schwarzschild's 105th Birthday (1912)
May 31 - Charles Abbot's 145th Birthday (1872)

June 2017
Jun ?? - Sentinel 5P Rokot/Briz-KM Launch
Jun ?? - Shijian 18 (SJ-18) CZ-5 Launch
Jun 01 - Moon Occults Asteroid 16 Psyche
Jun 01 - Comet 71P/Clark At Opposition (0.598 AU)
* Jun 01 - Comet P/2009 Q4 (Boattini) At Opposition (3.648 AU)
Jun 01 - Apollo Asteroid 418094 (2007 WV4) Near-Earth Flyby (0.020 AU)
Jun 01 - Asteroid 8088 Australia Closest Approach To Earth (1.483 AU)
Jun 01 - Apollo Asteroid 2101 Adonis Closest Approach To Earth (1.665 AU)
Jun 01 - 15th Anniversary (2002), 1st National Light Pollution Law (Czech Republic)
Jun 01 - Frank Whittle's 110th Birthday (1907)
Jun 02 - Comet 73P-W/Schwassmann-Wachmann Perihelion (0.965 AU)
Jun 02 - Comet C/2016 S1 (PANSTARRS) Closest Approach To Earth (2.218 AU)
Jun 02 - Asteroid 13188 Okinawa Closest Approach To Earth (1.060 AU)
Jun 02 - Asteroid 3709 Polypoites Closest Approach To Earth (4.601 AU)
Jun 02 - Kuiper Belt Object 278361 (2007 JJ43) At Opposition (40.059 AU)
Jun 02 - Clair Patterson's 95th Birthday (1922)
Jun 03 - Venus At Its Greatest Western Elongation (46 Degrees)
Jun 03 - Comet 234P/LINEAR At Opposition (2.362 AU)
Jun 03 - Comet C/2015 T4 (PANSTARRS) At Opposition (3.277 AU)
Jun 03 - Asteroid 8844 (1990 QR2) Occults HIP 95408 (6.0 Magnitude Star)
Jun 03 - Apollo Asteroid 1685 Toro Closest Approach To Earth (1.356 AU)
Jun 03 - Asteroid 293934 MPIA Closest Approach To Earth (1.760 AU)
Jun 04 - Cassini, Distant Flyby of Pan & Epimetheus
Jun 04 - Comet 172P/Yeung Closest Approach To Earth (2.355 AU)
Jun 04 - Asteroid 4559 Strauss Closest Approach To Earth (2.127 AU)
Jun 04 - 15th Anniversary (2002), Mike Brown, Chad Trujillo's Discovery of 50000 Quaoar
Jun 05 - Comet C/2015 V2 (Johnson) Closest Approach To Earth (0.811 AU)
Jun 05 - Comet 172P/Yeung At Opposition (2.355 AU)
Jun 05 - Comet 169P/NEAT Closest Approach To Earth (2.552 AU)
Jun 05 - Asteroid 4150 Starr Closest Approach To Earth (1.053 AU)
Jun 05 - Asteroid 231307 Peterfalk Closest Approach To Earth (1.980 AU)
Jun 05 - Asteroid 1941 Wild Closest Approach To Earth (3.137 AU)
Jun 05 - Jupiter Trojan Asteroid 5254 Ulysses Closest Approach To Earth (4.830 AU)
Jun 05 - 10th Anniversary (2007), MESSENGER, 2nd Venus Flyby
Jun 05 - 15th Anniversary (2002), STS-111 Launch (Space Shuttle Endeavour, International Space Station)
Jun 05 - John Bolton's 95th Birthday (1922)
Jun 06 - Comet C/2016 A8 (LINEAR) At Opposition (2.718 AU)
* Jun 06 - Comet P/1996 R2 (Lagerkvist) At Opposition (2.973 AU)
Jun 06 - Apollo Asteroid 2012 HN13 Near-Earth Flyby (0.073 AU)
Jun 06 - Asteroid 1886 Lowell Closest Approach To Earth (1.310 AU)
Jun 06 - Asteroid 1756 Giacobini Closest Approach To Earth (1.938 AU)
Jun 06 - Asteroid 2046 Leningrad Closest Approach To Earth (2.219 AU)
Jun 06 - David Scott's 85th Birthday (1932)
Jun 06 - Ralph Baldwin's 105th Birthday (1912)
* Jun 07 - Comet 75D/Kohoutek At Opposition (4.222 AU)
Jun 07 - Asteroid 13070 Seanconnery Closest Approach To Earth (1.249 AU)
Jun 07 - Apollo Asteroid 2063 Bacchus Closest Approach To Earth (1.418 AU)
Jun 07 - Asteroid 7032 Hitchcock Closest Approach To Earth (1.476 AU)
Jun 07 - Asteroid 7291 Hyakutake Closest Approach To Earth (2,533 AU)
Jun 07 - Kuiper Belt Object 2010 KZ39 At Opposition (45.079 AU)
Jun 07 - George de Bothezat's 135th Birthday (1882)
Jun 07 - Charles Barkla's 140th Birthday (1877)
Jun 08 - World Oceans Day
Jun 08 - Comet 73P-BS/Schwassmann-Wachmann Near-Earth Flyby (0.056 AU)
* Jun 08 - Comet 121P/Shoemaker-Holt At Opposition (4.267 AU)
Jun 08 - Apollo Asteroid 2011 PU1 Near-Earth Flyby (0.061 AU)
Jun 08 - Asteroid 82332 Las Vegas Closest Approach To Earth (1.734 AU)
Jun 08 - Asteroid 9012 Benner Closest Approach To Earth (2.207 AU)
Jun 08 - 10th Anniversary (2007), STS-117 Launch (Space Shuttle Atlantis, International Space Station)
Jun 08 - Bruce McCandless' 80th Birthday (1937)
Jun 08 - Alfred Rordame's 155th Birthday (1862)
Jun 09 - Comet 138P/Shoemaker-Levy At Opposition (3.698 AU)
Jun 09 - Asteroid 5203 Pavarotti Closest Approach To Earth (0.931 AU)
Jun 09 - Asteroid 7462 Grenoble Closest Approach To Earth (1.499 AU)
Jun 09 - Asteroid 4766 Malin Closest Approach To Earth (1.914 AU)
Jun 09 - Neptune Trojan 2013 KY18 At Opposition (29.186 AU)
Jun 09 - 65th Anniversary (1952), Abee Meteorite Fall in Canada
Jun 09 - Johann Gottfied Galle's 205th Birthday (1812)
Jun 10 - Cassini, Distant Flyby of Pan & Janus
Jun 10 - Comet P/2011 A2 (Scotti) Closest Approach To Earth (2.229 AU)
Jun 10 - Comet 47P/Ashbrook-Jackson Perihelion (2.817 AU)
Jun 10 - Comet 268P/Bernardi At Opposition (4.110 AU)
Jun 10 - Asteroid 2830 Greenwich Closest Approach To Earth (1.295 AU)
Jun 10 - Asteroid 5790 Nagasaki Closest Approach To Earth (1.527 AU)
Jun 10 - Asteroid 6373 Stern Closest Approach To Earth (1.635 AU)
Jun 10 - Asteroid 44016 Jimmypage Closest Approach To Earth (2.048 AU)
Jun 10 - Asteroid 115561 Frankherbert Closest Approach To Earth (2.103 AU)
Jun 10 - Asteroid 1578 Kirkwood Closest Approach To Earth (3.846 AU)
Jun 10 - Kuiper Belt Object 174567 Varda At Opposition (45.891 AU)
Jun 10 - Eugene Parker's 90th Birthday (1927)
Jun 11 - Comet 71P/Clark Closest Approach To Earth (0.590 AU)
Jun 11 - Comet 233P/La Sagra At Opposition (3.058 AU)
Jun 11 - Comet 200P/Larsen At Opposition (3.891 AU)
Jun 11 - Asteroid 1772 Gagarin Closest Approach To Earth (1.444 AU)
Jun 11 - Asteroid 4305 Clapton Closest Approach To Earth (1.970 AU)
Jun 11 - Asteroid 2127 Tanya Closest Approach To Earth (2.117 AU)
Jun 11 - Charles Fabry's 150th Birthday (1867)
Jun 12 - 50th Anniversary (1967), Venera 4 Launch (Soviet Venus Lander)
Jun 12 - Comet C/2015 V2 (Johnson) Perihelion (1.637 AU)
Jun 12 - Comet 289P/Blanpain At Opposition (4.106 AU)
Jun 12 - Asteroid 1674 Groeneveld Occults HIP 42516 (6.4 Magnitude Star)
Jun 12 - Asteroid 1006 Lagrangea Closest Approach To Earth (2.556 AU)
Jun 12 - Jupiter Trojan Asteroid 1143 Odysseus Closest Approach To Earth (4.681 AU)
Jun 12 - Paul Guldin's 440th Birthday (1577)
* Jun 13 - NROL-42/Trumpet Atlas 5 Launch
Jun 13 - Comet 73P-AI/Schwassmann-Wachmann Perihelion (0.964 AU)
Jun 13 - Comet P/1999 XN120 (Catalina) Perihelion (3.297 AU)
Jun 13 - Comet C/2015 O1 (PANSTARRS) At Opposition (3.552 AU)
* Jun 13 - Comet 64P/Swift-Gehrels At Opposition (3.589 AU)
Jun 13 - Asteroid 3355 Onizuka Closest Approach To Earth (1.318 AU)
Jun 13 - Asteroid 397 Vienna Closest Approach To Earth (1.739 AU)
Jun 13 - Asteroid 51823 Rickhusband Closest Approach To Earth (2.647 AU)
Jun 14 - 50th Anniversary (1967), Mariner 5 Launch (Venus Flyby Mission)
Jun 14 - Progress MS-6 Soyuz-2.1a Launch (International Space Station 67P)
Jun 14 - Asteroid 5066 Garradd Closest Approach To Earth (0.622 AU)
Jun 14 - Atira Asteroid 2007 EB26 Closest Approach To Earth (0.882 AU)
Jun 14 - Asteroid 3834 Zappafrank Closest Approach To Earth (1.155 AU)
Jun 14 - Asteroid 11334 Rio de Janeiro Closest Approach To Earth (1.357 AU)
Jun 14 - Asteroid 6546 Kaye Closest Approach To Earth (2.105 AU)
Jun 14 - Asteroid 1691 Oort Closest Approach To Earth (2.576 AU)
Jun 14 - Asteroid 1268 Libya Closest Approach To Earth (3.315 AU)
Jun 15 - ICON Pegasus XL Launch
Jun 15 - Saturn At Opposition
* Jun 15 - Comet P/2001 R6 (LINEAR-Skiff) At Opposition (2.890 AU)
* Jun 15 - Comet P/1996 R2 (Lagerkvist) Closest Approach To Earth (2.961 AU)
Jun 15 - Asteroid 22903 Georgeclooney Closest Approach To Earth (1.346 AU)
Jun 15 - Asteroid 2952 Lilliputia Closest Approach To Earth (1.578 AU)
Jun 15 - 265th Anniversary (1752), Ben Franklin's Kite-Flying Lightning Experiment
Jun 16 - Moon Occults Neptune
Jun 16 - Comet 150P/LONEOS At Opposition (2.204 AU)
Jun 16 - Comet P/2016 J3 At Opposition (3.464 AU)
Jun 16 - Apollo Asteroid 2010 VB1 Near-Earth Flyby (0.026 AU)
Jun 16 - Asteroid 1322 Coppernicus Closest Approach To Earth (0.860 AU)
Jun 16 - Asteroid 3949 Mach Closest Approach To Earth (1.167 AU)
Jun 16 - Amor Asteroid 9950 ESA Closest Approach To Earth (1.412 AU)
Jun 16 - Asteroid 16761 Hertz Closest Approach To Earth (1.735 AU)
Jun 16 - Plutino 28978 Ixion At Opposition (38.699 AU)
* Jun 17 - Iridium Next 11-20 Falcon 9 Launch
Jun 17 - Cassini, Distant Flyby of Prometheus, Atlas & Daphnis
Jun 17 - Asteroid 3651 Friedman Closest Approach To Earth (1.217 AU)
Jun 17 - Asteroid 14967 Madrid Closest Approach To Earth (1.587 AU)
Jun 17 - Asteroid 2925 Beatty Closest Approach To Earth (1.644 AU)
Jun 17 - Asteroid 10867 Lima Closest Approach To Earth (1.702 AU)
Jun 17 - Asteroid 12757 Yangtze Closest Approach To Earth (1.807 AU)
Jun 17 - Hermann Goldschmidt's 215th Birthday (1802)
Jun 18 - Comet 73P-BS/Schwassmann-Wachmann Perihelion (0.963 AU)
* Jun 18 - Comet 78P/Gehrels At Opposition (3.413 AU)
Jun 18 - Apollo Asteroid 471984 (2013 UE3) Near-Earth Flyby (0.049 AU)
Jun 18 - Asteroid 8564 Anomalocaris Closest Approach To Earth (2.154 AU)
Jun 19 - Comet 185P/Petriew At Opposition (1.725 AU)
Jun 19 - Comet 90P/Gehrels Perihelion (2.975 AU)
* Jun 19 - Comet P/2005 R1 (NEAT) At Opposition (3.183 AU)
Jun 19 - Asteroid 8084 Dallas Closest Approach To Earth (2.286 AU)
Jun 19 - Centaur Object 5145 Pholus At Opposition (26.390 AU)
Jun 20 - Comet 223P/Skiff At Opposition (3.337 AU)
Jun 20 - Comet P/2009 SK280 (Spacewatch-Hill) At Opposition (3.773 AU)
Jun 20 - Comet P/2010 U2 (Hill) At Opposition (3.968 AU)
Jun 20 - Apollo Asteroid 2015 YC1 Near-Earth Flyby (0.084 AU)
Jun 20 - Asteroid 477 Italia Closest Approach To Earth (1.184 AU)
Jun 20 - Aten Asteroid 2013 ND15 (Venus Trojan) Closest Approach To Earth (1.199 AU)
Jun 20 - Bill Bradfield's 90th Birthday (1927)
Jun 21 - Summer Solstice, 04:24 UT
Jun 21 - Comet C/2016 B1 (NEOWISE) At Opposition (2.971 AU)
Jun 21 - Asteroid 165347 Philplait Closest Approach To Earth (1.489 AU)
Jun 21 - Asteroid 3062 Wren Closest Approach To Earth (2.136 AU)
Jun 21 - Kuiper Belt Object 50000 Quaoar At Opposition (41.915 AU)
Jun 22 - Moon Occults Aldebaran
* Jun 22 - Comet 227P/Catalina-LINEAR Perihelion (1.788 AU)
Jun 22 - Centaur Object 10199 Chariklo Occults 2UCAC 18533636 (14.6 Magnitude Star)
Jun 22 - Apollo Asteroid 2010 VZ11 Near-Earth Flyby (0.079 AU)
Jun 22 - Apollo Asteroid 2102 Tantalus Closest Approach To Earth (0.332 AU)
Jun 22 - Apollo Asteroid 24761 Ahau Closest Approach To Earth (1.455 AU)
Jun 22 - Asteroid 8373 Stephengould Closest Approach To Earth (3.064 AU)
Jun 22 - Ewen Whitaker's 95th Birthday (1922)
Jun 23 - Cassini, Distant Flyby of Epimetheus, Daphnis & Pandora
Jun 23 - Comet P/2009 SK280 (Spacewatch-Hill) Closest Approach To Earth (3.771 AU)
Jun 23 - Asteroid 6459 Hidesan Occults HIP 91117 (3.8 Magnitude Star)
Jun 23 - Asteroid 7086 Bopp Closest Approach To Earth (1.089 AU)
Jun 23 - Asteroid 10389 Robmanning Closest Approach To Earth (1.197 AU)
Jun 23 - Asteroid 9769 Nautilus Closest Approach To Earth (1.232 AU)
Jun 23 - Asteroid 878 Mildred Closest Approach To Earth (1.313 AU)
Jun 23 - Asteroid 78905 Seanokeefe Closest Approach To Earth (1.846 AU)
Jun 23 - Asteroid 4969 Lawrence Closest Approach To Earth (2.848 AU)
Jun 24 - Aten Asteroid 441987 (2010 NY65) Near-Earth Flyby (0.020 AU)
Jun 24 - Aten Asteroid 2014 OL339 Closest Approach To Earth (0.282 AU)
Jun 24 - Asteroid 3656 Hemingway Closest Approach To Earth (0.890 AU)
Jun 24 - Asteroid 8209 Toscanelli Closest Approach To Earth (1.172 AU)
Jun 24 - Apollo Asteroid 4257 Ubasti Closest Approach To Earth (1.759 AU)
Jun 24 - Asteroid 5703 Hevelius Closest Approach To Earth (1.910 AU)
Jun 24 - Asteroid 588 Achilles (Jupiter Trojan) Closest Approach To Earth (4.964 AU)
Jun 24 - Martin Perl's 90th Birthday (1927)
Jun 25 - Cassini, Distant Flyby of Titan
Jun 25 - Comet 73P-Q/Schwassmann-Wachmann Perihelion (0.963 AU)
Jun 25 - Comet 243P/NEAT At Opposition (2.484 AU)
* Jun 25 - Comet P/2000 S1 (Skiff) Perihelion (2.536 AU)
Jun 25 - Comet 131P/Mueller At Opposition (2.893 AU)
Jun 25 - Asteroid 50240 Cortina Closest Approach To Earth (1.647 AU)
Jun 25 - 20th Anniversary (1997), Galileo, Callisto 9 Flyby
Jun 25 - 25th Anniversary (1992), STS-50 Launch (Space Shuttle Columbia, Spacelab)
Jun 26 - Comet P/2011 A2 (Scotti) At Opposition (2.263 AU)
Jun 26 - Apollo Asteroid 2005 LW3 Near-Earth Flyby (0.084 AU)
Jun 26 - Apollo Asteroid 10563 Izhdubar Closest Approach To Earth (0.690 AU)
Jun 26 - Asteroid 3356 Resnik Closest Approach To Earth (0.928 AU)
Jun 26 - Asteroid 6 Hebe Closest Approach To Earth (1.539 AU)
Jun 26 - Asteroid 1539 Borrelly Closest Approach To Earth (2.377 AU)
Jun 26 - Brian Roman's 55th Bithday (1962)
Jun 27 - Comet 335P/Gibbs At Opposition (3.407 AU)
Jun 27 - Comet 342P/SOHO At Opposition (3.408 AU)
Jun 27 - Comet C/2015 O1 (PANSTARRS) Closest Approach To Earth (3.517 AU)
Jun 27 - 15th Anniversary (1997), NEAR, Asteroid Mathilde Flyby
Jun 27 - 35th Anniversary (1982), STS-4 launch (Space Shuttle Columbia, DOD)
Jun 27 - Alexis Bouvard's 250th Birthday (1767)
* Jun 28 - Inmarsat S-Band/Hellas-Sat 3/GSAT 17 Ariane 5 Launch
Jun 28 - Mercury Passes 0.8 Degrees From Mars
Jun 28 - Moon Occults Regulus
Jun 28 - Comet 129P/Shoemaker-Levy Closest Approach To Earth (3.544 AU)
Jun 28 - Asteroid 3 Juno Occults 2UCAC 30236948 (12.8 Magnitude Star)
Jun 28 - Asteroid 5961 Watt Closest Approach To Earth (1.485 AU)
Jun 28 - Asteroid 2875 Lagerkvist Closest Approach To Earth (1.951 AU)
Jun 28 - Centaur Object 10370 Hylonome At Opposition (22.688 AU)
* Jun 29 - AEHF 4 Atlas 5 Launch
* Jun 29 - Kanopus-V-IK 1/AISSat 3/CICERO 1/Corvus-BC 1 & 2/Perseus-O 1-4/MKA-N 1 & 2/Mayak Soyuz-2-1a Fregat-M Launch
Jun 29 - Moon Occults Asteroid 16 Psyche
Jun 29 - Comet 336P/McNaught Closest Approach To Earth (1.951 AU)
Jun 29 - Asteroid 990 Yerkes Closest Approach To Earth (1.584 AU)
Jun 30 - Asteroid Day
Jun 30 - Chinasat 9A CZ-3B/E Launch (China)
Jun 30 - Cassini, Distant Flyby of Pan, Daphnis, Prometheus & Janus
Jun 30 - Comet 73P-Q/Schwassmann-Wachmann Closest Approach To Earth (0.110 AU)
Jun 30 - Comet 71P/Clark Perihelion (1.586 AU)
* Jun 30 - Comet P/2001 R6 (LINEAR-Skiff) Closest Approach To Earth (2.859 AU)
Jun 30 - Comet 129P/Shoemaker-Levy At Opposition (3.545 AU)
Jun 30 - Asteroid 39882 Edgarmitchell Closest Approach To Earth (1.382 AU)
Jun 30 - Asteroid 4783 Wasson Closest Approach To Earth (2.056 AU)
Jun 30 - Asteroid 2244 Tesla Closest Approach To Earth (2.073 AU)
Jun 30 - Asteroid 16529 Dangoldin Closest Approach To Earth (2.141 AU)
Jun 30 - Neptune Trojan 2008 LC18 At Opposition (31.442 AU)
Jun 30 - 45th Anniversary (1972), 1st Leap Second
Jun 30 - Robert Ballard's 75th Birthday (1942)

July 2017
Jul ?? - 215th Anniversary (1802), William Wollaston's Discovery of Palladium * Jul 01 - Comet 114P/Wiseman-Skiff At Opposition (4.263 AU)
Jul 01 - Asteroid 3769 Arthurmiller Closest Approach To Earth (1.506 AU)
Jul 01 - Asteroid 13681 Monty Python Closest Approach To Earth (1.809 AU)
Jul 01 - Apollo Asteroid 306367 Nut Closest Approach To Earth (2.456 AU)
Jul 01 - Asteroid 73769 Delphi Closest Approach To Earth (2.649 AU)
Jul 01 - Centaur Object 55576 Amycus At Opposition (19.290 AU)
Jul 01 - 20th Anniversary (1997), STS-94 Launch (Space Shuttle Columbia, Spacelab)
Jul 01 - Matthew Holman's 50th Birthday (1967)
Jul 01 - Kennedy Space Center's 55th Birthday (1962)
Jul 01 - Louis Bleriot's 145th Birthday (1872)
Jul 01 - 170th Anniversary (1847), Karl Hencke's Discovery of Asteroid 6 Hebe
Jul 02 - Comet 81P/Wild Closest Approach To Earth (2.290 AU)
* Jul 02 - Comet 111P/Helin-Roman-Crockett Closest Approach To Earth (3.553 AU) * Jul 02 - Comet 111P/Helin-Roman-Crockett At Opposition (3.553 AU)
* Jul 02 - Comet 76P/West-Kohoutek-Ikemura At Opposition (4.024 AU)
Jul 02 - Apollo Asteroid 4034 Vishnu Closest Approach To Earth (1.584 AU)
Jul 02 - Kuiper Belt Object 307261 (2002 MS4) At Opposition (45.759 AU)
Jul 02 - Lutz Schmadel's 75th Birthday (1942)
Jul 03 - Earth At Aphelion (1.017 AU From Sun)
Jul 03 - Comet 332P-F/Ikeya-Murakami Closest Approach To Earth (2.710 AU)
* Jul 03 - Comet P/2006 F1 (Kowalski) At Opposition (3.174 AU)
Jul 03 - Asteroid 5382 McKay Closest Approach To Earth (1.678 AU)
Jul 03 - Asteroid 4523 MIT Closest Approach To Earth (1.834 AU)
Jul 03 - Asteroid 767 Bondia Closest Approach To Earth (1.845 AU)
Jul 03 - Asteroid 6592 Goya Closest Approach To Earth (2.051 AU)
Jul 03 - Asteroid 582 Olympia Closest Approach To Earth (2.302 AU)
Jul 03 - Centaur Object 10199 Chariklo At Opposition (14.651 AU)
Jul 03 - 25th Anniversary (1992), SAMPEX Launch
Jul 04 - Asteroid 1279 Uganda Closest Approach To Earth (0.862 AU)
Jul 04 - Asteroid 1221 Amor Closest Approach To Earth (1.227 AU)
Jul 04 - Asteroid 14702 Benclark Closest Approach To earth (1.722 AU)
Jul 04 - Asteroid 6677 Renoir Closest Approach To Earth (2.123 AU)
Jul 04 - Asteroid 3106 Morabito Closest Approach To Earth (2.572 AU)
Jul 04 - 20th Anniversary (1997), Mars Pathfinder, Mars Landing
Jul 05 - Comet 332P-I/Ikeya-Murakami Closest Approach To Earth (2.681 AU)
Jul 05 - Comet 332P-B/Ikeya-Murakami Closest Approach To Earth (2.682 AU)
Jul 05 - Comet 332P-D/Ikeya-Murakami Closest Approach To Earth (2.683 AU)
Jul 05 - Comet 332P-H/Ikeya-Murakami Closest Approach To Earth (2.683 AU)
Jul 05 - Comet 332P-A/Ikeya-Murakami Closest Approach To Earth (2.684 AU)
Jul 05 - Comet 332P-E/Ikeya-Murakami Closest Approach To Earth (2.685 AU)
Jul 05 - Comet 332P-C/Ikeya-Murakami Closest Approach To Earth (2.686 AU)
* Jul 05 - Comet P/2006 F1 (Kowalski) Closest Approach To Earth (3.174 AU)
Jul 05 - Comet 131P/Mueller Closest Approach To Earth (2.877 AU)
* Jul 05 - Apollo Asteroid 2017 BM31 Near-Earth Flyby (0.072 AU)
Jul 05 - Asteroid 4536 Drewpinsky Closest Approach To Earth (1.182 AU)
Jul 05 - Asteroid 9617 Grahamchapman Closest Approach To Earth (1.457 AU)
Jul 05 - Binary Apollo Asteroid 69230 Hermes Closest Approach To Earth (1.528 AU)
Jul 05 - Asteroid 11356 Chuckjones Closest Approach To Earth (2.180 AU)
Jul 05 - Andrew Douglass' 150th Birthday (1867)
Jul 05 - 330th Anniversary (1687), Isaac Newton's Principia Published
Jul 06 - Cassini, Distant Flyby of Daphnis & Pan
Jul 06 - Comet 41P/Tuttle-Giacobini-Kresak At Opposition (0.514 AU)
Jul 06 - Comet 332P/Ikeya-Murakami Closest Approach To Earth (2.695 AU)
* Jul 06 - Comet 180P/NEAT Closest Approach To Earth (2.983 AU)
* Jul 06 - Comet 46P/Wirtanen At Opposition (3.269 AU)
Jul 06 - Asteroid 5676 Voltaire Closest Approach To Earth (1.354 AU)
Jul 06 - Asteroid 11341 Babbage Closest Approach To Earth (1.494 AU)
Jul 06 - Asteroid 7495 Feynman Closest Approach To Earth (2.168 AU)
Jul 06 - Asteroid 10552 Stockholm Closest Approach To Earth (2.720 AU)
Jul 06 - Kuiper Belt Object 2014 PN70 At Opposition (42.980 AU)
Jul 06 - 10th Anniversary (2007), Cali Meteorite Fall (Hit Houses in Columbia)
Jul 07 - Comet 253P/PANSTARRS At Opposition (1.930 AU)
Jul 07 - Comet 243P/NEAT Closest Approach To Earth (2.463 AU)
Jul 07 - Asteroid 336698 Melbourne Closest Approach To Earth (2.071 AU)
Jul 07 - Kuiper Belt Object 2014 MU69 At Opposition (42.275 AU)
Jul 07 - Robert Heinlein's 110th Birthday (1907)
Jul 08 - Comet 213P/Van Ness At Opposition (1.064 AU)
Jul 08 - Comet 213P-B/Van Ness At Opposition (1.065 AU)
Jul 08 - Comet 336P/McNaught At Opposition (1.962 AU)
Jul 08 - Comet 332P-G/Ikeya-Murakami Closest Approach To Earth (2.685 AU)
Jul 08 - Apollo Asteroid 1566 Icarus Closest Approach To Earth (1.005 AU)
Jul 08 - Asteroid 757 Portlandia Closest Approach To Earth (1.568 AU)
Jul 08 - 25th Anniversary (1992), Comet Shoemaker-Levy 9 Near-Jupiter Flyby (0.0008 AU), Comet Breakup
Jul 09 - Apollo Asteroid 37655 Illapa Closest Approach To Earth (1.448 AU)
Jul 09 - Asteroid 3156 Ellington Closest Approach To Earth (2.416 AU)
Jul 09 - Asteroid 624 Hektor (Jupiter Trojan) Closest Approach To Earth (4.340 AU)
Jul 10 - Cassini, Distant Flyby of Titan
Jul 10 - Asteroid 434 Hungaria Closest Approach To Earth (0.938 AU)
Jul 10 - Asteroid 365159 Garching Closest Approach To Earth (1.343 AU)
Jul 10 - Asteroid 10806 Mexico Closest Approach To Earth (2.276 AU)
Jul 10 - Dwarf Planet 134340 Pluto At Opposition (32.347 AU)
Jul 10 - 25th Anniversary (1992), Giotto, Comet Grigg-Skjellerup Flyby
Jul 10 - 55th Anniversary (1962), Telstar 1 Launch
Jul 10 - Paolo Holvorcem's 50th Birthday (1967)
Jul 10 - Alvan Clark's 180th Birthday (1832)
Jul 10 - Roger Cotes' 335th Birthday (1682)
Jul 11 - Comet 311P/PANSTARRS Perihelion (1.936 AU)
Jul 11 - Asteroid 5748 Davebrin Closest Approach To Earth (1.908 AU)
Jul 11 - Ted Maiman's 90th Birthday (1927)
Jul 11 - Jerome Lalande's 285th Birthday (1732)
Jul 12 - Comet 73P-AL/Schwassmann-Wachmann Perihelion (0.961 AU)
* Jul 12 - Comet P/2004 FY140 (LINEAR) Closest Approach To Earth (3.659 AU)
Jul 12 - Apollo Asteroid 2008 HU4 Closest Approach To Earth (0.840 AU)
Jul 12 - Apollo Asteroid 5011 Ptah Closest Approach To Earth (1.812 AU)
Jul 12 - Asteroid 18725 Atacama Closest Approach To Earth (2.082 AU)
Jul 12 - Asteroid 3162 Nostalgia Closest Approach To Earth (2.588 AU)
Jul 12 - 40th Anniversary (1977), High Engery Astronomical Observatory (HEAO-1) Launch
Jul 12 - Rick Husband's 60th Birthday (1957)
Jul 13 - Langley Research Center's 100th Birthday (1917)
Jul 13 - Cassini, Distant Flyby of Ephimetheus, Pandora, Atlas & Prometheus
Jul 13 - Moon Occults Neptune
* Jul 13 - Comet P/2008 O2 (McNaught) At Opposition (3.096 AU)
Jul 13 - Asteroid 7079 Baghdad Closest Approach To Earth (0.702 AU)
Jul 13 - Asteroid 4355 Memphis Closest Approach To Earth (1.522 AU)
Jul 13 - Asteroid 247553 Berndpauli Closest Approach To Earth (2.727 AU)
Jul 13 - Neptune Trojan 2011 HM102 At Opposition (27.140 AU)
Jul 13 - Heinrich Kreutz's 110th Birthday (1907)
Jul 13 - Mary Lea Heger's 120th Birthday (1897)
Jul 13 - John Dee's 490th Birthday (1527)
* Jul 14 - Comet C/2017 D2 (Barros) Perihelion (2.485 AU)
Jul 14 - Apollo Asteroid 2014 UV115 Near-Earth Flyby (0.096 AU)
Jul 14 - Asteroid 14880 Moa Closest Approach To Earth (1.621 AU)
Jul 14 - Asteroid 7392 Kowalski Closest Approach To Earth (1.783 AU)
Jul 14 - Amor Asteroid 153591 (2001 SN263) (2 Moons) Closest Approach To Earth (1.768 AU)
Jul 14 - Asteroid 5223 McSween Closest Approach To Earth (2.012 AU)
Jul 14 - 70th Anniversary (1847), Braunau Meteorite Fall (Hit House in Czechoslovakia)
Jul 15 - International Observe The Moon Night
Jul 15 - ORS 5 Minotaur 4 Launch
Jul 15 - Apollo Asteroid 2017 BS6 Near-Earth Flyby (0.055 AU)
Jul 15 - Apollo Asteroid 2015 XZ378 Near-Earth Flyby (0.080 AU)
Jul 15 - 45th Anniversary (1972), Pioneer 10 Becomes 1st Spacecraft to Enter Main Asteroid Belt
Jul 16 - Comet 332P-F/Ikeya-Murakami At Opposition (2.734 AU)
* Jul 16 - Comet P/2004 FY140 (LINEAR) At Opposition (3.662 AU)
Jul 16 - Asteroid 91287 Simon-Garfunkel Closest Approach To Earth (1.344 AU)
Jul 16 - Asteroid 132904 Notkin Closest Approach To Earth (2.442 AU)
Jul 16 - Apollo Asteroid 5731 Zeus Closest Approach To Earth (2.454 AU)
Jul 17 - Comet 189P/NEAT Closest Approach To Earth (0.360 AU)
* Jul 17 - Comet 217P/LINEAR Perihelion (1.235 AU)
* Jul 17 - Comet 217P/LINEAR Closest Approach To Earth (1.430 AU)
Jul 17 - Comet 251P/LINEAR Perihelion (1.733 AU)
* Jul 17 - Comet 180P/NEAT At Opposition (2.999 AU)
Jul 17 - Asteroid 2701 Cherson Occults HIP 98351 (6.3 Magnitude Star)
Jul 17 - Asteroid 2247 Hiroshima Closest Approach To Earth (1.490 AU)
Jul 17 - Asteroid 5277 Brisbane Closest Approach To Earth (1.604 AU)
Jul 17 - Asteroid 7016 Conandoyle Closest Approach To Earth (1.617 AU)
Jul 17 - Asteroid 7273 Garyhuss Closest Approach To Earth (1.655 AU)
Jul 17 - Asteroid 7934 Sinatra Closest Approach To Earth (1.909 AU)
Jul 17 - 50th Anniversary (1967), Denver Meteorite Fall (Hit Warehouse in Colorado)
Jul 18 - Comet 213P/Van Ness Closest Approach To Earth (1.053 AU)
Jul 18 - Comet 213P-B/Van Ness Closest Approach To Earth (1.055 AU)
Jul 18 - Comet 332P-I/Ikeya-Murakami At Opposition (2.705 AU)
Jul 18 - Comet 332P-B/Ikeya-Murakami At Opposition (2.706 AU)
Jul 18 - Comet 332P-D/Ikeya-Murakami At Opposition (2.706 AU)
Jul 18 - Comet 332P-H/Ikeya-Murakami At Opposition (2.707 AU)
Jul 18 - Comet 332P-A/Ikeya-Murakami At Opposition (2.708 AU)
Jul 18 - Comet 332P-E/Ikeya-Murakami At Opposition (2.709 AU)
Jul 18 - Comet 332P-C/Ikeya-Murakami At Opposition (2.711 AU)
Jul 18 - Comet 332P/Ikeya-Murakami At Opposition (2.717 AU)
Jul 18 - Atira Asteroid 2015 DR215 Closest Approach To Earth (0.580 AU)
Jul 19 - Cassini, Distant Flyby of Atlas & Janus
Jul 19 - Atira Asteroid 2010 XB11 Closest Approach To Earth (0.735 AU)
Jul 19 - Asteroid 365756 ISON Closest Approach To Earth (7.659 AU)
Jul 19 - 50th Anniversary (1967), Explorer 35 Launch (Moon Orbiter)
Jul 19 - 105th Anniversary (1912), Holbrook Meteorite Shower (Hit Train Station in Arizona)
Jul 20 - Moon Occults Aldebaran
Jul 20 - Apollo Asteroid 2009 BD Closest Approach To Earth (0.520 AU)
Jul 20 - Asteroid 10183 Ampere Closest Approach To Earth (1.415 AU)
Jul 20 - Asteroid 3688 Navajo Closest Approach To Earth (3.180 AU)

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