BRAS small web logoMonthly Observing Information

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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.

Baton Rouge Clear Sky Clock

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November

Moon Calendar

Moon Calendar

Sky charts

View/download sky chart north image View/download sky chart south image

View/download sky chart east image View/download sky chart west image

North South East West

Saturn’s Ring Plane

Saturn ring plane image

Venus Phase

Venus phase image

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

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Last updated on Monday, December 3, 2018, 02:16 PM.