Prairie State Park June 11, 2017
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- Victor Warner
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1 Prairie State Park June 11, 2017
2 References: html RASC Handbook 2018 All Photos by Mark Jones Unless noted M15 Sep 30, 2017 Ballwin MO
3 Sun Events 2018 Northern Limit Page and Lindbergh Southern Limit Watson and Lindbergh Red Lines are 72,100 ft long Jan 3 1:00 - Perihelion (distance to sun: 147 mkm) Mar 20 10:15 - March Equinox Jun 21 4:07 - Northern Solstice (declination: ) Jul 6 11:00 - Aphelion (distance to sun: 152 mkm) Sep 22 19:54 Sep Equinox Dec 21 17:23 - Southern Solstice (declination: ) Google Earth
4 Full Moon Events 2018 Smallest Jun 27 Second smallest of FM 2018 Jul 27 Smallest of FM 2018 (29.41 arc-min) Largest Jan 1 Largest FM of 2018 (33.16 arc-min) Jan 31 Second largest FM of 2018 Canon DSLR FL=300mm Jan 1, rd largest of the last 10 years. The biggest of the next 10 years. Former larger FM was Nov 14, Next larger FM is Nov 25, 2034
5 Other Moon Events 2018 Jan 2 - Northern most FM of Jun 27 Southern most FM of Moon rise Sep 8, 2017 Arch from 17 miles away
6 Other Moon Events 2018 Lunar X (local start times + ~2 hours) Jan 23 23:42 Alt=1 Mar 24 00:57 Alt=10 May 23 01:02 Alt=17 July 20 00:14 Alt=6 Dec 14 17:24 Alt=41 Local STL times Favorable Dates in Yellow Lunar X - Mar 15, 2016 Data provided by Cloudy Nights
7 Other Moon Events 2018 Golden Handle on the Moon Sun rises on the Jura mountains, while Sinus Iridium is still in shadow Jan 26 19:00 Alt=64 Mar 27 2:30 Alt=22 Apr 25 15:36 Alt=2 Jul 22 22:36 Alt=18 Sep 19 18:48 Alt=21 Nov 17 19:54 Alt=44 Start times. Event visible up to 7 hours Data provided by CalSky Photos by Werner Priller Local STL times
8 Important Dates 2018 Mar 11 Daylight Saving Time Begins April 21 Astronomy Day June MSRAL Springdale, AR Jul ALCON Minneapolis, MN Jul 26 Mars Opposition Oct 13 Astronomy Day Nov 4 Daylight Saving Time Ends SLSC March 2015
9 2018 Meteor Showers January 3 Quadrantids; ZHR=40 (FM+1day) April 22 Lyrids; ZHR=20 (FQ) May 5 Eta Aquarids; ZHR=60 (FM+5days) July 28 Delta Aquarids; ZHR=20 (FM) Aug 12 Perseids; ZHR=60 (NM+2day) Oct 21 Orionids; ZHR=20 (FM-3days) Nov 17 Leonids; ZHR=20 (FQ+3days) Dec 14 Geminids; ZHR=120 (FQ-1day) Yellow=Favorable Moon Conditions Perseid Meteor, Aug 11, 2016, Belle, MO
10 Eclipses 2018 Jan 31 - Total Lunar Eclipse Western N America Feb 15 Partial Solar Eclipse not visible from US Jul 13 - Partial Solar Eclipse not visible from US Jul 27 - Total Lunar Eclipse not visible from US Aug 11 - Partial Solar Eclipse not visible from US Yellow=Favorable Conditions
11 Planet Oppositions 2018 Venus GEE Aug 17 (24.5 arc-sec) Mars July 27 (dia=24.3 arc-sec) Jupiter May 9 (dia=45 arc-sec) Saturn June 27 (dia=18.3 arc-sec, 25.6 o ring tilt) Uranus Oct 24 (dia=3.7 arc-sec) Neptune Sep 7 (dia=2.32 arc-sec) Venus Mars Yellow=Favorable Conditions Top to Bottom: Relative sizes of Jupiter Saturn Uranus Images from Stellarium Neptune
12 Evening Star Jan 8 - superior conjunction Venus 2018 May 20 th northmost declination, near M35 Jun 14 th latest setting time 11:02pm Aug 17 - Venus Greatest Elongation (45.9 East, in the evenings, brightness: -4.5 mag) Evening and Morning Star! Oct 26 Inferior Conjunction (6 south of Sun mag, dia=61.3 arc-sec)
13 Small Body Oppositions 2018 Jan 31 Dwarf Planet Ceres (1) at opposition, mag 6.9 (2018) Oct 29 Asteroid Pallas (2) at opposition, mag 8.2 (2017) Nov 17 Asteroid Juno (3) at opposition, mag 7.4 Jun 19 Asteroid Vesta (4) at opposition, mag 5.3 Dec 28 Asteroid Hebe (6) at opposition, mag 8.4 Oct 30 Asteroid Iris (7) at opposition, mag 6.9 (2017) Jan 2 Asteroid Flora (8) at opposition, mag 8.2 (2018) Jan 16 Asteroid Metis (9) at opposition, mag 9.7 Sep 23 Asteroid Hygiea (10) at opposition, mag 10.1 Jul 12 Dwarf Planet Pluto (134340) at opposition, mag 14.2 Yellow=Favorable Conditions Relative sizes Moon 1000 km Pluto
14 Lunar/Aldebaran Conjunctions 2018 Mon Day Time GMT Event Jan 27 10:09 Aldebaran 0.7 S of Moon Feb 23 17:07 Aldebaran 0.7 S of Moon Mar 22 22:33 Aldebaran 0.9 S of Moon Apr 19 4:45 Aldebaran 1.1 S of Moon Jul 10 9:30 Aldebaran 1.1 S of Moon Aug 6 18:35 Aldebaran 1.1 S of Moon Sep 3 1:34 Aldebaran 1.2 S of Moon Sep 30 7:06 Aldebaran 1.4 S of Moon Oct 27 13:04 Aldebaran 1.6 S of Moon Nov 23 21:11 Aldebaran 1.7 S of Moon Dec 21 7:31 Aldebaran 1.7 S of Moon Moon and Venus Dec 11, 2012
15 January - March M56 Sep 30, 2017 Ballwin MO
16 Jan Mar 2018 Conjunctions Mon Day Time GMT Event Jan 3 19:50 Beehive 2.3 N of Moon Jan 5 7:24 Regulus 0.9 S of Moon Jan 13 8 Mercury 0.7 of Saturn Jan 27 10:09 Aldebaran 0.7 S of Moon Jan 31 7:19 Beehive 2.3 N of Moon Feb 1 18:24 Regulus 0.9 S of Moon Feb 11 14:46 Saturn 2.5 S of Moon Feb 23 17:07 Aldebaran 0.7 S of Moon Feb 27 17:28 Beehive 2.3 N of Moon Mar 1 5:09 Regulus 0.9 S of Moon Mar 4 6 Mercury 1.1 of Venus Mar 11 2:37 Saturn 2.2 S of Moon Mar 19 8 Mercury 3.8 of Venus Mar 22 22:33 Aldebaran 0.9 S of Moon Mar 27 0:52 Beehive 2.2 N of Moon Mar 28 13:38 Regulus 1.0 S of Moon Moon and Venus Dec 11, 2012
17 Jan 7, 2018 Jupiter/Mars Conjunction 5:00am AZ=134 deg EL=21 deg Separation = 0.2 deg! Jupiter s moons are doubled up on each side Jupiter mag= -1.8 Mars mag= +1.4
18 Jan 27, 2018 Moon Occults Star Name: 75 Tauri Mag=4.96 Occult Begins: 2:24am Occult Ends: after Moonset AZ=286 deg EL=6 deg Very near horizon
19 Full Moon Events 2018 Smallest Jun 27 Second smallest of FM 2018 Jul 27 Smallest of FM 2018 (29.41 arc-min) Largest Jan 1 Largest FM of 2018 (33.16 arc-min) Jan 31 Second largest FM of 2018 Canon DSLR FL=300mm Jan 1, rd largest of the last 10 years. The biggest of the next 10 years. Former larger FM was Nov 14, Next larger FM is Nov 25, 2034
20 Jan 31 - Total Lunar Eclipse Partial Begins: 5:49am AZ=280 deg EL 14 deg Totality Begins: 6:52am AZ=289 deg EL=2.5 deg Moon Sets: 7:07am AZ=291 deg Sunrise: 7:08am Very near horizon Moon south of M44 in Cancer
21 Feb 9, 2018 Moon/Mars/Vesta Conjunction 5:00am AZ=143 deg EL=21 deg Mars mag=+1.1 Vesta mag=+7.6
22 Mar 3, 2018 Venus/Mercury Conjunction 6:00pm AZ=263 deg EL=3 deg Separation = 1.4 deg Venus mag= -3.9 Mercury mag= -1.2 Very near horizon
23 Mar 28, 2018 Venus/Uranus Conjunction 8:00pm AZ=275 deg EL=8 deg Separation = 0.07 deg!! Venus mag= -3.9 Uranus mag= +5.9
24 April - June M13 Sep 30, 2017 Ballwin MO
25 Apr Jun 2018 Conjunctions Mon Day Time GMT Event Apr 7 12:50 Saturn 1.9 S of Moon Apr 19 4:45 Aldebaran 1.1 S of Moon Apr 23 6:17 Beehive 1.9 N of Moon Apr 24 16:47 Venus 3.4 S of Pleiades Apr 24 19:39 Regulus 1.2 S of Moon May 2 13:29 Venus 6.3 N of Aldebaran May 4 20:31 Saturn 1.7 S of Moon May 13 17:21 Mercury 2.4 N of Moon May 20 11:57 Beehive 1.7 N of Moon May 22 0:53 Regulus 1.4 S of Moon Jun 1 1:20 Saturn 1.6 S of Moon Jun 8 3:37 Venus 4.6 S of Pollux Jun 16 13:13 Venus 2.3 N of Moon Jun 16 19:38 Beehive 1.5 N of Moon Jun 18 7:25 Regulus 1.7 S of Moon Jun 20 2:21 Venus 0.4 N of Beehive Jun 24 21:37 Mercury 4.7 S of Pollux Jun 28 3:59 Saturn 1.8 S of Moon Moon and Venus Dec 11, 2012
26 Apr 3, 2018 Mars/Saturn/M22 Conjunction 5:24am AZ=157 deg EL=24 deg Separation = 1.3 deg Mars mag= +0.2 Saturn mag= +0.5 M22 Cluster mag=5.1
27 Apr 7, 2018 Mars/Saturn/Moon Conjunction 4:24am AZ=147 deg EL=10 deg Separation = 1.2 deg Mars mag= +0.2 Saturn mag=+0.5
28 Apr 18, 2018 Moon Occults Stars Name: 55 & 63 Tauri Mag=6.9 & 5.6 Occult Begins: 5:55pm Occult Ends: 7:09pm AZ=260 deg EL=38 deg
29 Apr 24, 2018 Moon/Regulus Conjunction 2:24am AZ=227 deg EL=8 deg Separation = 1.2 deg Regulus= +1.4
30 Apr 24, 2018 Venus/Pleiades Conjunction 8:00pm AZ=282 deg EL=21 deg Venus mag= -3.9
31 Apr 27, 2018 Venus between Pleiades and Hyades 8:00pm AZ=279 deg EL=22 deg Venus mag= -3.9
32 May 4, 2018 Moon Occults Double Star Name: Polis Constellation: Mu Sagitari Mag=3.83 & Sep= 16.9 arc-sec Occult Begins: 3:09am Occult Ends: 4:27am AZ=186 deg EL=30 deg
33 Jupiter 2018 May 9 Opposition (Libra) 4.40AU 36.6 light-minutes mag
34 Jupiter 2018 May 9 Opposition (Libra) Dia = 44.8 arc-sec Feb 2017 Aphelion Jan 2023 Perihelion Moons apparent size at Opposition Io: 1.1 arc-sec Europa: 1.0 arc-sec Ganymede: 1.7 arc-sec Callisto: 1.5 arc-sec Jupiter to scale with moons
35 May 2017 Summer begins on N. Hemisphere Saturn April Rings 2018 change angle Aphelion In rings are 2017 near edge rings on tilted to maximum possible 2018 rings tilted 26.6 degrees Saturn 2018 Saturn The Saturn views were simulated with a computer program written by Tom Ruen. (Created here for public domain)
36 Evening Star Venus 2018 May 20 th northmost declination, near M35 Jun 14 th latest setting time 11:02pm
37 Evening Star Venus 2018 Jun 14 th latest setting time 11:02pm Venus Jul :49pm Set Time
38 Small Body Oppositions 2018 Jan 31 Dwarf Planet Ceres (1) at opposition, mag 6.9 (2018) Oct 29 Asteroid Pallas (2) at opposition, mag 8.2 (2017) Nov 17 Asteroid Juno (3) at opposition, mag 7.4 Jun 19 Asteroid Vesta (4) at opposition, mag 5.3 Dec 28 Asteroid Hebe (6) at opposition, mag 8.4 Oct 30 Asteroid Iris (7) at opposition, mag 6.9 (2017) Jan 2 Asteroid Flora (8) at opposition, mag 8.2 (2018) Jan 16 Asteroid Metis (9) at opposition, mag 9.7 Sep 23 Asteroid Hygiea (10) at opposition, mag 10.1 Jul 12 Dwarf Planet Pluto (134340) at opposition, mag 14.2 Relative sizes Moon 1000 km Pluto
39 Full Moon Events 2018 Smallest Jun 27 Second smallest of FM 2018 Jul 27 Smallest of FM 2018 (29.41 arc-min) Largest Jan 1 Largest FM of 2018 (33.16 arc-min) Jan 31 Second largest FM of 2018 Canon DSLR FL=300mm Jan 1, rd largest of the last 10 years. The biggest of the next 10 years. Former larger FM was Nov 14, Next larger FM is Nov 25, 2034
40 Other Moon Events 2018 Jan 2 - Northern most FM of Jun 27 Southern most FM of Moon rise Sep 8, 2017 Arch from 17 miles away
41 Saturn 2018 Jun 27 Opposition Sagittarius 9.048AU 75 light-minutes 0.0 mag Full Moon next to Saturn Separation = 1.8 deg
42 Jun 27 Opposition Saturn dia arc-sec Rings- 42 arc-sec Titan dia. 0.8 arc-sec Saturn 2018 Saturn Relative apparent size of Titan compared to Saturn and Cassini Division
43 Jun 28, 2018 Moon/Saturn Conjunction 1:00am AZ=179 deg EL=28 deg Separation = 1.8 deg Saturn= +0.0 M22 to south M25 to north
44 July - September M31 Sep 30, 2017 Ballwin MO
45 Jul Sep 2018 Conjunctions Mon Day Time GMT Event Jul 4 5:39 Mercury 0.6 S of Beehive Jul 9 23:34 Venus 0.9 N of Regulus Jul 10 9:30 Aldebaran 1.1 S of Moon Jul 14 22:04 Mercury 2.2 S of Moon Jul 15 16:14 Regulus 1.7 S of Moon Jul 16 3:31 Venus 1.6 S of Moon Jul 24 16:49 Mercury 1.2 S of Regulus Jul 25 6:10 Saturn 2.0 S of Moon Aug 6 18:35 Aldebaran 1.1 S of Moon Aug 21 2:09 Mercury 4.8 S of Beehive Aug 21 9:55 Saturn 2.1 S of Moon Sep 1 4:45 Venus 1.0 S of Spica Sep 3 1:34 Aldebaran 1.2 S of Moon Sep 7 2:13 Beehive 1.4 N of Moon Sep 17 16:46 Saturn 2.1 S of Moon Sep 30 7:06 Aldebaran 1.4 S of Moon Moon and Venus Dec 11, 2012
46 Jul 1, 2018 Moon Occults Star Near-graze Name: Deneb Algiedi Constellation: Delta Cap Mag=2.84 Occult Begins: 11:08pm Occult Ends: 11:12pm AZ=110 deg EL=<1 deg Very near horizon
47 Jul 4, 2018 Saturn Occults Star Name: TYC Constellation: Sagittarius Mag=9.7 Ring Occult Begins: 11:09pm Cassini Occult: 11:32pm Ball Occult: 12:10am Ball Occult Ends: 1:15am Ring Occult Ends: 1:38am AZ=182 deg EL=28 deg
48 Jul 10, 2018 Moon/Aldebaran Conjunction Mag=6.9 & 5.6 3:30am AZ=68 deg EL=1 deg Separation = < 10 arc-min Aldebaran mag= Very near horizon
49 Jul 15, 2018 Moon/Venus Conjunction 9:06pm AZ=269 deg EL=16 deg Separation = 1.6 deg Venus mag= -4.1
50 Mars 2018 July 26 - Opposition 24.7 arc-sec (Left) July 31 Closest to Earth (Right) Sep 16 Perihelion Mars Opposition at SLSC May 22, 2016
51 Mars Oppositions
52 July 26 Opposition Full Moon nearby Mars on meridian Mars 2018 Mars mag= -2.8 Dia = 24.3 arc-sec Distance 3.2 light-minutes
53 Mars Oppositions Mars Distance in Millions of Miles Diameter in arc-seconds Aug Sep Aug Sep Aug Jul Oct Dec Jan Feb Mar May June Sep Next minimum distance of Oct 2020 Next time this close 2035
54 Mars 2018 May Oct 2018 ~ 4 months to repeat central meridian
55 Full Moon Events 2018 Smallest Jun 27 Second smallest of FM 2018 Jul 27 Smallest of FM 2018 (29.41 arc-min) Largest Jan 1 Largest FM of 2018 (33.16 arc-min) Jan 31 Second largest FM of 2018 Canon DSLR FL=300mm Jan 1, rd largest of the last 10 years. The biggest of the next 10 years. Former larger FM was Nov 14, Next larger FM is Nov 25, 2034
56 Planet Oppositions 2018 Venus GEE Aug 17 (24.5 arc-sec) Mars July 27 (dia=24.3 arc-sec) Jupiter May 9 (dia=45 arc-sec) Saturn June 27 (dia=18.3 arc-sec, 25.6 o ring tilt) Uranus Oct 24 (dia=3.7 arc-sec) Neptune Sep 7 (dia=2.32 arc-sec) Top to Bottom: Relative sizes of Venus Mars Jupiter Saturn Uranus Images from Stellarium Neptune
57 Sep 21, 2018 Moon Occults Star Name: Deneb Algiedi Constellation: Delta Cap Mag=2.84 Occult Begins: 5:50pm Occult Ends: 6:43pm AZ=121 deg EL=11 deg
58 October - December M57 Sep 30, 2017 Ballwin MO
59 Oct Dec 2018 Conjunctions Mon Day Time GMT Event Oct 4 9:51 Beehive 1.3 N of Moon Oct 5 21:58 Regulus 1.8 S of Moon Oct 16 3 Mercury 6.2 of Venus Oct 18 13:01 Mars 1.9 S of Moon Oct 27 13:04 Aldebaran 1.6 S of Moon Oct 29 6 Mercury 3.1 of Jupiter Oct 31 15:24 Beehive 1.0 N of Moon Nov 2 4:16 Regulus 2.1 S of Moon Nov 9 4:58 Mercury 1.8 N of Antares Nov 11 15:46 Saturn 1.4 S of Moon Nov 14 23:14 Venus 0.2 S of Spica Nov 16 4:16 Mars 1.0 N of Moon: Occn. Nov 23 21:11 Aldebaran 1.7 S of Moon Nov 27 20:57 Beehive 0.8 N of Moon Nov 29 9:27 Regulus 2.3 S of Moon Dec 5 21:06 Mercury 1.9 S of Moon Dec 9 5:30 Saturn 1.1 S of Moon: Occn. Dec 21 7:31 Aldebaran 1.7 S of Moon Dec Mercury 0.8 of Jupiter Dec 22 8:05 Mercury 5.8 N of Antares Dec 22 15:03 Jupiter 5.1 N of Antares Dec 25 4:52 Beehive 0.6 N of Moon Dec 26 16:06 Regulus 2.5 S of Moon Moon and Venus Dec 11, 2012
60 Oct 4, 2018 Moon Occults Star Asellus Australis Name: Delta Cancri Mag=3.93 & 12.2 Occult Begins: 5:41am Occult Ends: 6:54am AZ=102 deg EL=43 deg M deg to north
61 Oct 4, 2018 Moon Conjunction Hyades Cluster Constellation: Cancer 3:50am AZ=83 deg EL=22 deg Separation = 1.2 deg
62 Oct 14, 2018 Moon/Saturn/M8 Conjunction Constellation: Sagittarius 9:44pm AZ=234 deg EL=5 deg Separation = 1.8 deg Saturn mag= +0.5 M8 mag= +6.0 Very near horizon
63 Mars/Antares/Saturn/Moon Conjunction Sep 27, 2014
64 Venus 2018 Evening to Morning Star! Oct 26 - Venus Conjunction (inferior) Separation = 6 south of Sun. Mag= -4.3 Dia =61.3 arc-sec
65 Uranus/Neptune 2018 Uranus Oct 24 Opposition (Pisces) Saturn 18.9AU Rings 156 change light-minutes angle +5.7mag In arc-sec rings are Neptune near edge on Sep 7 Opposition (Aquarius) 28.9AU 240 light-minutes +7.8mag 2.32 arc-sec Position of Uranus and Neptune s moons at opposition
66 Nov 15, 2018 Moon/Mars Conjunction 11:40pm AZ=251 deg EL=1 deg Separation = 1.0 deg Mars mag= -0.3 Very near horizon
67 Small Body Oppositions 2018 Jan 31 Dwarf Planet Ceres (1) at opposition, mag 6.9 (2018) Oct 29 Asteroid Pallas (2) at opposition, mag 8.2 (2017) Nov 17 Asteroid Juno (3) at opposition, mag 7.4 Jun 19 Asteroid Vesta (4) at opposition, mag 5.3 Dec 28 Asteroid Hebe (6) at opposition, mag 8.4 Oct 30 Asteroid Iris (7) at opposition, mag 6.9 (2017) Jan 2 Asteroid Flora (8) at opposition, mag 8.2 (2018) Jan 16 Asteroid Metis (9) at opposition, mag 9.7 Sep 23 Asteroid Hygiea (10) at opposition, mag 10.1 Jul 12 Dwarf Planet Pluto (134340) at opposition, mag 14.2 Relative sizes Moon 1000 km Pluto
68 Asteroid Juno (3) at opposition, Nov mag: 7.5 dist=155 mkm dia=0.3 arc-sec Constellation: Eridanus Yellow=Favorable Conditions
69 Dec 6, 2018 Mars/Neptune Conjunction 10:40pm AZ=252 deg EL=9 deg Separation = 0.04 deg!! Mars mag= +0.1 Neptune mag=+7.9
70 Dec 21, 2018 Venus Occults Star HR 5518, Mag=6.32 Constellation: Libra Occult Begins: 5:52am Occult Ends: 6:07am AZ=131 deg EL=23.5 deg
71 SLAS Dark Sky Parties for 2018 Mar 10 Dark Sky Party (sunset=6:10pm) Apr 14 Dark Sky Party (sunset=7:43pm) May 12 Dark Sky Party (sunset=8:11pm) Jun 16 Dark Sky Party (sunset=8:27pm) Jul 14 Dark Sky Party (sunset=8:28pm) Aug 11 Dark Sky Party (sunset=8:03pm) Sep 8 Dark Sky Party (sunset=7:24pm) Oct 6 Dark Sky Party (sunset=6:39pm) Nov 3 Dark Sky Party (sunset=6:02pm) 2014 Messier Marathon Danville
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