Monthly Observing Information
This page provides charts, and text concerning what is visible in the night sky during the month noted. All information is for Baton Rouge, Louisiana, but they can still provide useful information for most other areas of the U.S.A. Sky charts, Saturn ring plane, and Venus phase images are for Midnight, on the 15th day of the month. Sky charts are 100 degree field of view, and show objects down to 12th magnitude. Times in the Astronomy Lab 2 text information are in 24 hour format and have been adjusted for Daylight Savings Time. Subtract 12 hours from those over 12 to get the equivalent PM. RA and DEC given are for Epoch 2000.
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Baton Rouge Clear Sky Clock
Click on image for more info and details. This clock is for the Baton Rouge area only.
May
Moon Calendar
Sky charts
Saturn’s Ring Plane
Venus Phase
Sun and Moon Rise and Set
Begin End Date Moonrise Moonset Sunrise Sunset Twilight Twilight ------------ --------- --------- --------- --------- --------- --------- 5/1/2019 04:46 16:50 06:21 19:43 04:54 21:10 5/2/2019 05:17 17:45 06:20 19:44 04:53 21:11 5/3/2019 05:49 18:41 06:19 19:44 04:52 21:12 5/4/2019 06:23 19:39 06:19 19:45 04:51 21:13 5/5/2019 07:00 20:38 06:18 19:46 04:49 21:14 5/6/2019 07:41 21:40 06:17 19:46 04:48 21:15 5/7/2019 08:27 22:41 06:16 19:47 04:47 21:16 5/8/2019 09:19 23:42 06:15 19:48 04:46 21:17 5/9/2019 10:16 ------ 06:15 19:48 04:45 21:18 5/10/2019 11:18 00:37 06:14 19:49 04:44 21:19 5/11/2019 12:23 01:29 06:13 19:50 04:43 21:20 5/12/2019 13:29 02:16 06:12 19:50 04:42 21:21 5/13/2019 14:33 02:58 06:12 19:51 04:41 21:22 5/14/2019 15:39 03:38 06:11 19:52 04:40 21:23 5/15/2019 16:42 04:15 06:10 19:52 04:39 21:24 5/16/2019 17:46 04:52 06:10 19:53 04:38 21:25 5/17/2019 18:50 05:30 06:09 19:53 04:37 21:25 5/18/2019 19:53 06:09 06:09 19:54 04:37 21:26 5/19/2019 20:55 06:51 06:08 19:55 04:36 21:27 5/20/2019 21:54 07:37 06:08 19:55 04:35 21:28 5/21/2019 22:49 08:26 06:07 19:56 04:34 21:29 5/22/2019 23:39 09:18 06:07 19:57 04:34 21:30 5/23/2019 ------ 10:11 06:06 19:57 04:33 21:31 5/24/2019 00:24 11:05 06:06 19:58 04:32 21:32 5/25/2019 01:04 11:59 06:05 19:58 04:31 21:33 5/26/2019 01:41 12:53 06:05 19:59 04:31 21:33 5/27/2019 02:14 13:47 06:05 19:59 04:30 21:34 5/28/2019 02:46 14:40 06:04 20:00 04:30 21:35 5/29/2019 03:17 15:34 06:04 20:01 04:29 21:36 5/30/2019 03:48 16:29 06:04 20:01 04:29 21:37 5/31/2019 04:21 17:26 06:03 20:02 04:28 21:37 '------' means the event does not occur on this date. Object Right ascensio Declination Azimuth Altitude Earth distance Sun distance ------------ -------------- ------------- ------------- ------------- --------------- --------------- Sun 03h 26m 54.8s +18° 47' 35" 341° 23' 18" -38° 36' 39" 0 0 Mercury 02h 57m 24.2s +16° 03' 20" 349° 37' 18" -42° 52' 38" 195,338,549 49,584,844 Venus 01h 53m 01.5s +09° 52' 30" 12° 20' 35" -48° 54' 45" 226,742,694 108,740,135 Mars 05h 57m 22.2s +24° 33' 15" 311° 15' 42" -15° 13' 11" 348,696,715 241,685,820 Jupiter 17h 27m 49.2s -22° 36' 24" 135° 02' 13" +21° 17' 03" 657,897,220 794,092,621 Saturn 19h 27m 43.9s -21° 31' 16" 115° 45' 16" +00° 52' 12" 1,414,633,911 1,503,953,393 Uranus 02h 06m 51.3s +12° 19' 11" 6° 47' 55" -46° 59' 16" 3,110,320,475 2,968,989,019 Neptune 23h 18m 42.4s -05° 31' 08" 70° 06' 06" -39° 31' 18" 4,538,396,966 4,478,435,069 Pluto 19h 39m 45.1s -21° 46' 58" 114° 27' 30" -01° 37' 04" 4,976,714,062 5,056,382,029 Moon 12h 28m 20.7s +01° 41' 10" 229° 40' 29" +49° 59' 03" 369,615 0 Object Rise: Tran Set: Phase Constl Magnitud ------------ ----- ----- ----- ------- --------- -------- Sun 05:11 12:01 18:51 0.00% Tau unknown Mercury 04:48 11:30 18:12 95.81% Ari -1.5 Venus 04:01 10:27 16:53 90.93% Psc -3.9 Mars 07:27 14:32 21:37 96.62% Tau 1.7 Jupiter 20:56 02:05 07:11 99.79% Oph -2.6 Saturn 22:53 04:05 09:13 99.83% Sgr 0.4 Uranus 04:12 10:43 17:14 99.99% Ari 5.9 Neptune 02:07 07:55 13:44 99.98% Aqr 7.9 Pluto 23:04 04:16 09:23 99.98% Sgr 14.3 Moon 14:37 20:59 02:37 83.35% Vir unknown Moon Data --------- Distance (km): 369,614.6 Distance (miles): 229,668.5 True Equatorial: 12h 30m 01.4s +02° 09' 41" Angular diameter: 0° 32' 46" Total libration (l,b): 1° 41' 03" , 6° 24' 54" Optical libration: 1° 42' 02" , 6° 27' 26" Physical libration: 0° 00' 59" , 0° 02' 32" Position Angle: 23° 37' 38" Pos. angle (bright limb): 48° 09' 49" Phase angle: 23° 37' 38" Age: 10.26 Mars Data --------- Declination of earth: 1° 48' 59" Declination of Sun: 10° 29' 47" Longitude of the central Meridian:212° 31' 58" Pos. Angle: 333° 10' 41" Jupiter Data ----------------- Declination of earth: 2° 46' 27" Declination of Sun: 2° 42' 33" Longitude of the central Meridian:329° 15' 30" Pos. Angle: 2° 38' 02" Saturn Data --------- Declination of earth: 23° 32' 21" Declination of Sun: 24° 43' 39" Longitude of the central Meridian: 0° 00' 00" Pos. Angle: 6° 35' 05" Name Month/Day RA Decl Hourly Rate ----------------------------- ------------ ---------- ---------- ----------- Phi Bootids 05/01 16.0 51.0 6 Alpha Scorpiids 05/03 16.0 -22.0 6 Eta Aquarids 05/03 22.4 -1.9 60
Information and images in this section from TheSkyX Student Edition
Solar System Information
Planet View Info Report for 5/ 1/2019 to 5/31/2019
Mercury
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
5/ 1/2019 5:32 18:07 1h17m18s 5°28'31" 20°35'06" 0.752 1.14941
5/ 8/2019 5:38 18:38 2h03m01s 10°33'07" 14°56'56" 0.856 1.23918
5/15/2019 5:50 19:18 2h55m46s 15°54'15" 7°46'30" 0.956 1.30442
5/22/2019 6:10 20:05 3h55m58s 20°48'12" 0°42'14" 1.000 1.32100
5/29/2019 6:38 20:51 5h00m12s 24°12'24" 9°08'18" 0.929 1.27065
Venus
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
5/ 1/2019 5:08 17:31 0h48m38s 3°25'21" 27°52'35" 0.881 1.44544
5/ 8/2019 5:04 17:43 1h20m10s 6°39'22" 26°10'29" 0.895 1.48104
5/15/2019 5:01 17:55 1h52m06s 9°47'13" 24°26'24" 0.909 1.51471
5/22/2019 4:59 18:07 2h24m36s 12°44'57" 22°40'25" 0.922 1.54640
5/29/2019 4:57 18:20 2h57m52s 15°28'36" 20°52'45" 0.934 1.57596
Mars
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
5/ 1/2019 8:42 22:50 5h16m57s 24°08'35" 39°50'56" 0.958 2.23915
5/ 8/2019 8:34 22:43 5h36m53s 24°25'41" 37°36'46" 0.962 2.28549
5/15/2019 8:26 22:36 5h56m48s 24°33'10" 35°23'08" 0.966 2.32966
5/22/2019 8:18 22:28 6h16m40s 24°31'03" 33°09'55" 0.970 2.37163
5/29/2019 8:11 22:19 6h36m26s 24°19'29" 30°56'51" 0.974 2.41132
Jupiter
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
5/ 1/2019 22:52 9:07 17h32m45s -22°39'22" 136°38'19" 0.996 4.53536
5/ 8/2019 22:22 8:37 17h30m36s -22°38'07" 143°55'30" 0.997 4.46176
5/15/2019 21:52 8:07 17h27m54s -22°36'28" 151°18'35" 0.998 4.39963
5/22/2019 21:21 7:36 17h24m46s -22°34'22" 158°46'29" 0.999 4.35003
5/29/2019 20:50 7:05 17h21m16s -22°31'50" 166°18'12" 0.999 4.31382
Saturn
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
5/ 1/2019 0:48 11:05 19h28m13s -21°29'18" 109°54'28" 0.998 9.68465
5/ 8/2019 0:20 10:37 19h28m00s -21°30'04" 116°44'50" 0.998 9.57731
5/15/2019 23:48 10:09 19h27m27s -21°31'32" 123°38'23" 0.998 9.47631
5/22/2019 23:20 9:41 19h26m36s -21°33'41" 130°35'01" 0.999 9.38312
5/29/2019 22:51 9:12 19h25m26s -21°36'27" 137°34'52" 0.999 9.29909
Uranus
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
5/ 1/2019 6:01 19:02 2h03m47s 12°02'50" 7°22'44" 1.000 20.84860
5/ 8/2019 5:34 18:36 2h05m18s 12°10'58" 13°45'47" 1.000 20.82785
5/15/2019 5:08 18:10 2h06m48s 12°18'52" 20°08'08" 1.000 20.79419
5/22/2019 4:42 17:45 2h08m15s 12°26'29" 26°29'54" 1.000 20.74816
5/29/2019 4:15 17:19 2h09m39s 12°33'44" 32°51'40" 1.000 20.69033
Neptune
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
5/ 1/2019 3:57 15:34 23h17m31s -5°38'08" 52°19'35" 1.000 30.54217
5/ 8/2019 3:30 15:07 23h18m09s -5°34'20" 58°56'32" 1.000 30.44512
5/15/2019 3:03 14:40 23h18m43s -5°31'04" 65°33'20" 1.000 30.34098
5/22/2019 2:36 14:13 23h19m12s -5°28'21" 72°10'10" 1.000 30.23118
5/29/2019 2:08 13:46 23h19m35s -5°26'14" 78°47'30" 1.000 30.11714
Pluto
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
5/ 1/2019 1:01 11:16 19h40m07s -21°44'35" 107°12'52" 1.000 33.47868
5/ 8/2019 0:33 10:49 19h39m59s -21°45'37" 114°02'11" 1.000 33.37149
5/15/2019 0:05 10:21 19h39m46s -21°46'54" 120°51'22" 1.000 33.27016
5/22/2019 23:34 9:53 19h39m27s -21°48'22" 127°40'27" 1.000 33.17616
5/29/2019 23:06 9:25 19h39m03s -21°50'03" 134°29'44" 1.000 33.09080
Planet Apsides Report for 2019
Mercury
5/24/2019 Perihelion Distance from Sun: 0.31 AU
Planet Conjunction/Opposition Report for 5/ 1/2019 to 5/31/2019
Mercury
Date Hour Event
5/21/2019 18 Superior Conjunction
Planet Data Report
Planet Mean Dist Period of Inclination Equatorial
From Sun Revolution Diameter
(AU) (km)
Mercury 0.39 88 days 7° 4880
Venus 0.72 224.7 days 3.4° 12100
Earth 1.00 365.24 days 0° 12756
Mars 1.52 687 days 1.9° 6794
Jupiter 5.20 11.86 years 1.3° 143200
Saturn 9.54 29.46 years 2.5° 120000
Uranus 19.18 84 years 0.8° 52290
Neptune 30.06 165 years 1.8° 50450
Pluto 39.44 248 years 17.2° 2200-2300
Moon Apsides Report for 5/ 1/2019 to 5/31/2019
Date Hour Apsis Distance (km) Diameter
5/13/2019 17 Perigee 369016 0.5397°
5/26/2019 8 Apogee 404136 0.4928°
Moon Nodes Report for 5/ 1/2019 to 5/31/2019
Date Time Node Illuminated Fraction
5/ 9/2019 13:49 Ascending 0.23
5/22/2019 14:11 Descending 0.86
Meteor Showers Report for 5/ 1/2019 to 5/31/2019
Date Meteor Shower ZHR RA DEC Illum. Frac. Longitude
5/ 5/2019 eta-Aquarids 35 22h20m -1° 0.01 45°
5/12/2019 alpha-Scorpiids 5 16h04m -24° 0.59 52°
Twilight Report for 5/ 1/2019 to 5/31/2019
Date Sun Astronomical Nautical Civil
Rise Set Begin End Begin End Begin End
5/ 1/2019 6:21 19:43 4:50 21:14 5:22 20:42 5:52 20:12
5/ 8/2019 6:16 19:47 4:42 21:21 5:15 20:48 5:46 20:17
5/15/2019 6:11 19:52 4:36 21:27 5:09 20:54 5:40 20:22
5/22/2019 6:07 19:56 4:30 21:33 5:04 20:59 5:36 20:27
5/29/2019 6:04 20:01 4:25 21:39 5:00 21:05 5:33 20:32
Information for this section is from Astronomy Lab 2.03
Last updated on Wednesday, May 1, 2019, 12:10 PM.