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.
NOTE: If you print this page out using your browser, be sure it is set to print black text or the background, or the white text will not print at all.
Baton Rouge Clear Sky Clock
Click on image for more info and details. This clock is for the Baton Rouge area only.
November
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 ------------ --------- --------- --------- --------- --------- --------- 12/1/2019 11:11 21:53 06:44 17:04 05:19 18:28 12/2/2019 11:50 22:48 06:44 17:04 05:20 18:28 12/3/2019 12:25 23:43 06:45 17:04 05:21 18:28 12/4/2019 12:57 ------ 06:46 17:04 05:21 18:28 12/5/2019 13:27 00:36 06:47 17:04 05:22 18:29 12/6/2019 13:57 01:29 06:48 17:04 05:23 18:29 12/7/2019 14:26 02:21 06:48 17:04 05:23 18:29 12/8/2019 14:58 03:16 06:49 17:04 05:24 18:29 12/9/2019 15:32 04:11 06:50 17:04 05:25 18:29 12/10/2019 16:10 05:10 06:51 17:04 05:25 18:30 12/11/2019 16:54 06:09 06:51 17:05 05:26 18:30 12/12/2019 17:44 07:11 06:52 17:05 05:27 18:30 12/13/2019 18:40 08:11 06:53 17:05 05:27 18:31 12/14/2019 19:41 09:08 06:53 17:05 05:28 18:31 12/15/2019 20:46 10:01 06:54 17:06 05:28 18:31 12/16/2019 21:52 10:48 06:55 17:06 05:29 18:32 12/17/2019 22:57 11:31 06:55 17:07 05:30 18:32 12/18/2019 ------ 12:09 06:56 17:07 05:30 18:33 12/19/2019 00:01 12:45 06:56 17:07 05:31 18:33 12/20/2019 01:05 13:21 06:57 17:08 05:31 18:33 12/21/2019 02:08 13:58 06:57 17:08 05:32 18:34 12/22/2019 03:13 14:36 06:58 17:09 05:32 18:34 12/23/2019 04:17 15:18 06:58 17:09 05:33 18:35 12/24/2019 05:21 16:03 06:59 17:10 05:33 18:36 12/25/2019 06:23 16:53 06:59 17:10 05:34 18:36 12/26/2019 07:22 17:47 07:00 17:11 05:34 18:37 12/27/2019 08:15 18:43 07:00 17:12 05:34 18:37 12/28/2019 09:03 19:40 07:00 17:12 05:35 18:38 12/29/2019 09:46 20:37 07:01 17:13 05:35 18:38 12/30/2019 10:22 21:32 07:01 17:14 05:36 18:39 12/31/2019 10:56 22:26 07:01 17:14 05:36 18:40 '------' means the event does not occur on this date. Object Right ascensio Declination Azimuth Altitude Earth distance Sun distance ------------ -------------- ------------- ------------- ------------- --------------- --------------- Sun 18h 17m 56.6s -23° 22' 20" 301° 48' 47" -77° 31' 48" 0 0 Mercury 17h 39m 39.9s -24° 04' 08" 344° 15' 47" -83° 23' 08" 211,157,189 69,483,126 Venus 20h 40m 52.8s -20° 14' 32" 272° 01' 41" -46° 24' 15" 195,965,327 108,735,269 Mars 15h 28m 59.8s -18° 29' 20" 73° 53' 28" -59° 43' 49" 332,913,705 238,770,392 Jupiter 18h 23m 14.6s -23° 13' 51" 299° 08' 30" -76° 27' 45" 929,437,875 782,349,306 Saturn 19h 29m 35.9s -21° 46' 50" 281° 08' 50" -62° 16' 23" 1,641,613,722 1,501,211,620 Uranus 02h 02m 54.9s +11° 57' 39" 260° 48' 56" +38° 26' 04" 2,891,623,554 2,964,938,280 Neptune 23h 10m 40.0s -06° 24' 24" 267° 07' 14" -07° 47' 19" 4,521,073,848 4,477,905,356 Pluto 19h 36m 20.8s -22° 14' 38" 278° 55' 43" -61° 01' 38" 5,218,081,240 5,078,430,427 Moon 18h 17m 18.7s -23° 06' 29" 303° 11' 27" -77° 29' 00" 384,242 0 Object Right ascensio Declination Azimuth Altitude Earth distance Sun distance ------------ -------------- ------------- ------------- ------------- --------------- --------------- Sun 17h 33m 34.1s -23° 17' 50" 305° 29' 26" -78° 22' 17" 0 0 Mercury 16h 34m 02.2s -21° 31' 14" 25° 50' 29" -80° 09' 59" 198,487,495 65,800,625 Venus 19h 49m 08.9s -22° 53' 46" 269° 56' 36" -50° 03' 05" 203,903,109 108,853,278 Mars 15h 02m 00.4s -16° 39' 10" 67° 33' 55" -61° 18' 15" 343,038,848 240,324,277 Jupiter 18h 13m 14.6s -23° 17' 16" 286° 50' 01" -70° 38' 13" 927,915,388 782,892,747 Saturn 19h 24m 46.1s -21° 56' 07" 274° 47' 17" -54° 57' 02" 1,632,712,174 1,501,359,397 Uranus 02h 03m 35.7s +12° 00' 58" 254° 03' 12" +46° 53' 53" 2,870,279,683 2,965,121,738 Neptune 23h 10m 10.3s -06° 27' 47" 262° 10' 47" +00° 32' 04" 4,495,811,754 4,477,928,965 Pluto 19h 34m 59.9s -22° 16' 52" 272° 44' 53" -52° 52' 44" 5,207,026,552 5,077,448,121 Moon 09h 16m 02.9s +19° 02' 38" 84° 19' 25" +29° 51' 47" 372,004 0 Object Rise: Tran Set: Phase Constl Magnitud ------------ ----- ----- ----- ------- --------- -------- Sun 06:54 12:00 17:06 0.00% Oph unknown Mercury 05:49 10:59 16:09 92.20% Oph -0.6 Venus 09:10 14:15 19:21 85.77% Sgr -4.0 Mars 04:07 09:29 14:51 96.63% Lib 1.7 Jupiter 07:38 12:41 17:45 99.98% Sgr -1.8 Saturn 08:45 13:53 19:00 99.95% Sgr 0.6 Uranus 14:00 20:31 03:05 99.96% Ari 5.7 Neptune 11:51 17:38 23:24 99.97% Aqr 7.9 Pluto 08:56 14:02 19:08 100.00% Sgr 14.4 Moon 20:45 02:52 09:59 81.62% Cnc unknown Moon Data --------- Distance (km): 372,003.7 Distance (miles): 231,152.9 True Equatorial: 09h 12m 46.4s +19° 23' 50" Angular diameter: 0° 32' 24" Total libration (l,b): 2° 42' 30" , 3° 58' 28" Optical libration: 2° 42' 50" , 4° 01' 44" Physical libration: 0° 00' 20" , 0° 03' 16" Position Angle: 18° 30' 05" Pos. angle (bright limb): 50° 46' 25" Phase angle: 18° 30' 05" Age: 19.53 Mars Data --------- Declination of earth: 14° 35' 43" Declination of Sun: 21° 19' 08" Longitude of the central Meridian:277° 37' 25" Pos. Angle: 38° 27' 52" Jupiter Data ----------------- Declination of earth: 2° 07' 43" Declination of Sun: 2° 07' 14" Longitude of the central Meridian: 69° 38' 23" Pos. Angle: 357° 44' 43" Saturn Data --------- Declination of earth: 24° 01' 45" Declination of Sun: 23° 22' 44" Longitude of the central Meridian: 0° 00' 00" Pos. Angle: 6° 34' 30" Name Month/Day RA Decl Hourly Rate ----------------------------- ------------ ---------- ---------- ----------- December Phoenicids 12/05 1.0 -55.0 100 December Phoenicids 12/05 1.0 -45.0 100 Monocerotids 12/10 6.7 14.0 3 Southern Chi Orionids 12/10 5.7 16.0 8 Northern Chi Orionids 12/11 5.6 26.0 4 Sigma Hydrids 12/11 8.4 1.6 5 Delta Arietids 12/11 3.5 22.0 5 Geminids 12/14 7.5 32.5 90 Ursids 12/22 14.5 75.8 20
Information and images in this section from TheSkyX Student Edition
Solar System Information
Planet View Info Report for 12/ 1/2018 to 12/31/2018
Mercury
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
12/ 1/2018 5:58 16:32 15h54m58s -18°20'13" 8°28'44" 0.059 0.70346
12/ 8/2018 5:18 16:00 15h42m57s -16°55'14" 18°39'01" 0.354 0.83757
12/15/2018 5:13 15:49 16h00m44s -18°16'18" 21°15'42" 0.616 1.00269
12/22/2018 5:26 15:49 16h34m01s -20°30'36" 20°11'42" 0.775 1.14652
12/29/2018 5:45 15:58 17h14m35s -22°30'52" 17°40'58" 0.866 1.25801
Venus
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
12/ 1/2018 3:36 14:53 13h50m12s -9°52'55" 39°38'19" 0.257 0.40989
12/ 8/2018 3:27 14:41 14h06m59s -10°29'35" 42°40'45" 0.315 0.45749
12/15/2018 3:23 14:32 14h27m23s -11°35'50" 44°43'35" 0.367 0.50756
12/22/2018 3:22 14:24 14h50m39s -13°01'13" 46°00'40" 0.414 0.55926
12/29/2018 3:24 14:18 15h16m20s -14°36'41" 46°42'27" 0.457 0.61195
Mars
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
12/ 1/2018 12:29 23:51 22h45m56s -9°04'50" 90°44'48" 0.860 1.00896
12/ 8/2018 12:13 23:45 23h02m31s -7°08'58" 88°10'31" 0.862 1.06413
12/15/2018 11:57 23:39 23h19m14s -5°10'37" 85°39'16" 0.865 1.12043
12/22/2018 11:42 23:33 23h36m03s -3°10'36" 83°10'28" 0.868 1.17770
12/29/2018 11:27 23:27 23h52m58s -1°09'45" 80°43'19" 0.871 1.23586
Jupiter
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
12/ 1/2018 6:25 16:47 16h12m44s -20°29'07" 3°47'02" 1.000 6.34219
12/ 8/2018 6:04 16:26 16h19m17s -20°45'52" 9°17'33" 1.000 6.32647
12/15/2018 5:44 16:04 16h25m50s -21°01'29" 14°51'05" 0.999 6.30011
12/22/2018 5:24 15:42 16h32m18s -21°15'53" 20°26'30" 0.999 6.26335
12/29/2018 5:03 15:20 16h38m41s -21°29'04" 26°04'02" 0.998 6.21650
Saturn
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
12/ 1/2018 8:51 19:02 18h33m40s -22°40'42" 29°02'32" 0.999 10.93082
12/ 8/2018 8:27 18:38 18h37m01s -22°38'30" 22°42'40" 1.000 10.98134
12/15/2018 8:02 18:14 18h40m27s -22°35'55" 16°23'29" 1.000 11.01994
12/22/2018 7:38 17:50 18h43m57s -22°32'56" 10°05'03" 1.000 11.04620
12/29/2018 7:14 17:26 18h47m31s -22°29'35" 3°47'47" 1.000 11.05989
Uranus
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
12/ 1/2018 14:43 3:41 1h49m13s 10°39'29" 140°25'06" 1.000 19.09748
12/ 8/2018 14:15 3:13 1h48m30s 10°35'44" 133°07'51" 1.000 19.18014
12/15/2018 13:47 2:45 1h47m56s 10°32'43" 125°51'51" 1.000 19.27317
12/22/2018 13:19 2:17 1h47m29s 10°30'30" 118°37'41" 1.000 19.37498
12/29/2018 12:52 1:49 1h47m12s 10°29'08" 111°25'30" 0.999 19.48393
Neptune
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
12/ 1/2018 12:39 0:11 23h01m29s -7°18'42" 94°58'48" 1.000 29.83774
12/ 8/2018 12:11 23:40 23h01m38s -7°17'40" 87°54'59" 1.000 29.95899
12/15/2018 11:44 23:13 23h01m52s -7°15'58" 80°52'03" 1.000 30.07970
12/22/2018 11:17 22:46 23h02m13s -7°13'40" 73°50'22" 1.000 30.19801
12/29/2018 10:49 22:19 23h02m39s -7°10'44" 66°49'53" 1.000 30.31227
Pluto
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
12/ 1/2018 9:40 19:54 19h25m02s -22°03'16" 40°54'41" 1.000 34.43119
12/ 8/2018 9:14 19:28 19h25m53s -22°02'10" 34°00'18" 1.000 34.50884
12/15/2018 8:47 19:01 19h26m47s -22°00'57" 27°05'56" 1.000 34.57449
12/22/2018 8:20 18:35 19h27m44s -21°59'37" 20°11'46" 1.000 34.62727
12/29/2018 7:54 18:08 19h28m43s -21°58'12" 13°17'43" 1.000 34.66659
Planet Apsides Report for 2018
Venus
12/26/2018 Perihelion Distance from Sun: 0.72 AU
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 12/ 1/2018 to 12/31/2018
Date Hour Apsis Distance (km) Diameter
12/12/2018 6 Apogee 405181 0.4915°
12/24/2018 4 Perigee 361050 0.5516°
Moon Nodes Report for 12/ 1/2018 to 12/31/2018
Date Time Node Illuminated Fraction
12/10/2018 11:56 Descending 0.10
12/24/2018 5:53 Ascending 0.97
Meteor Showers Report for 12/ 1/2018 to 12/31/2018
Date Meteor Shower ZHR RA DEC Illum. Frac. Longitude
12/ 8/2018 Puppids-Velids 15 9h00m -48° 0.02 257°
12/13/2018 Geminids 75 7h28m 32° 0.34 262°
12/22/2018 Ursids 5 14h28m 78° 1.00 271°
12/25/2018 Puppids-Velids 15 9h20m -65° 0.87 274°
Twilight Report for 12/ 1/2018 to 12/31/2018
Date Sun Astronomical Nautical Civil
Rise Set Begin End Begin End Begin End
12/ 1/2018 6:44 17:04 5:15 18:32 5:44 18:03 6:14 17:34
12/ 8/2018 6:49 17:04 5:20 18:33 5:49 18:04 6:19 17:35
12/15/2018 6:54 17:06 5:24 18:36 5:53 18:06 6:23 17:37
12/22/2018 6:58 17:09 5:28 18:39 5:57 18:10 6:27 17:40
12/29/2018 7:01 17:13 5:31 18:43 6:00 18:14 6:30 17:44
Information for this section is from Astronomy Lab 2.03
Last updated on Monday, December 3, 2018, 02:16 PM.