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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January

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
------------ --------- --------- --------- --------- --------- ---------

1/1/2019         02:56     14:14     07:02     17:15     05:36     18:41
1/2/2019         03:54     14:53     07:02     17:16     05:37     18:41
1/3/2019         04:51     15:36     07:02     17:17     05:37     18:42
1/4/2019         05:46     16:22     07:02     17:17     05:37     18:43
1/5/2019         06:38     17:11     07:02     17:18     05:37     18:43
1/6/2019         07:27     18:02     07:03     17:19     05:38     18:44
1/7/2019         08:12     18:54     07:03     17:20     05:38     18:45
1/8/2019         08:52     19:48     07:03     17:21     05:38     18:45
1/9/2019         09:30     20:41     07:03     17:21     05:38     18:46
1/10/2019        10:04     21:34     07:03     17:22     05:38     18:47
1/11/2019        10:36     22:27     07:03     17:23     05:38     18:48
1/12/2019        11:08     23:21     07:03     17:24     05:38     18:48
1/13/2019        11:40    ------     07:03     17:25     05:38     18:49
1/14/2019        12:13     00:15     07:03     17:26     05:38     18:50
1/15/2019        12:48     01:12     07:02     17:26     05:38     18:51
1/16/2019        13:28     02:11     07:02     17:27     05:38     18:51
1/17/2019        14:13     03:14     07:02     17:28     05:38     18:52
1/18/2019        15:05     04:18     07:02     17:29     05:38     18:53
1/19/2019        16:04     05:23     07:02     17:30     05:38     18:54
1/20/2019        17:10     06:26     07:01     17:31     05:38     18:54
1/21/2019        18:19     07:25     07:01     17:32     05:37     18:55
1/22/2019        19:30     08:17     07:01     17:33     05:37     18:56
1/23/2019        20:39     09:04     07:00     17:33     05:37     18:57
1/24/2019        21:45     09:46     07:00     17:34     05:37     18:57
1/25/2019        22:49     10:24     06:59     17:35     05:36     18:58
1/26/2019        23:51     11:01     06:59     17:36     05:36     18:59
1/27/2019       ------     11:38     06:59     17:37     05:36     19:00
1/28/2019        00:51     12:15     06:58     17:38     05:35     19:00
1/29/2019        01:49     12:54     06:58     17:39     05:35     19:01
1/30/2019        02:46     13:35     06:57     17:40     05:35     19:02
1/31/2019        03:42     14:19     06:56     17:41     05:34     19:03

'------' means the event does not occur on this date.

Object       Right ascensio Declination   Azimuth       Altitude      Earth distance  Sun distance    
------------ -------------- ------------- ------------- ------------- --------------- --------------- 
Sun          19h 51m 00.8s  -20° 59' 15"  303° 57' 30"  -74° 21' 24"                0               0 
Mercury      19h 14m 39.7s  -23° 48' 51"  326° 15' 39"  -82° 07' 26"      211,107,257      69,505,628 
Venus        16h 32m 09.7s  -18° 36' 45"   78° 22' 51"  -55° 28' 51"      112,238,694     107,597,494 
Mars         00h 37m 29.2s  +04° 03' 30"  275° 47' 30"  -01° 49' 46"      208,023,709     220,227,177 
Jupiter      16h 54m 34.6s  -21° 57' 28"   79° 50' 45"  -61° 39' 48"      905,036,294     799,665,648 
Saturn       18h 57m 01.3s  -22° 19' 12"  357° 37' 59"  -81° 51' 49"    1,648,166,666   1,504,907,973 
Uranus       01h 47m 12.4s  +10° 29' 53"  272° 43' 59"  +16° 21' 41"    2,960,083,093   2,971,066,346 
Neptune      23h 04m 12.1s  -07° 00' 44"  278° 24' 20"  -27° 28' 59"    4,574,507,950   4,478,717,806 
Pluto        19h 31m 20.7s  -21° 54' 18"  314° 43' 46"  -78° 17' 12"    5,191,423,074   5,044,773,686 
Moon         03h 08m 24.7s  +12° 19' 59"  263° 55' 20"  +34° 42' 58"          381,470               0 

Object       Rise:  Tran  Set: Phase   Constl    Magnitud 
------------ ----- ----- ----- ------- --------- -------- 
Sun          07:02 12:14 17:26   0.00%       Sgr  unknown 
Mercury      06:33 11:37 16:40  97.27%       Sgr     -0.7 
Venus        03:38 08:55 14:13  55.21%       Oph     -4.4 
Mars         10:50 17:01 23:13  88.27%       Psc      0.7 
Jupiter      04:13 09:20 14:27  99.64%       Oph     -1.8 
Saturn       06:16 11:22 16:28  99.99%       Sgr      0.5 
Uranus       11:45 18:11 00:42  99.94%       Psc      5.8 
Neptune      09:44 15:29 21:14  99.98%       Aqr      7.9 
Pluto        06:48 11:55 17:03 100.00%       Sgr     14.3 
Moon         12:48 19:26 01:12  69.66%       Ari  unknown 

Moon Data
---------
Distance (km):                381,469.8
Distance (miles):             237,034.9
True Equatorial:              03h 11m 15.2s +12° 42' 32" 
Angular diameter:               0° 31' 38" 
Total libration (l,b):          7° 32' 35"  ,  6° 22' 34" 
Optical libration:              7° 31' 57"  ,  6° 20' 32" 
Physical libration:             0° 00' 37"  ,  0° 02' 01" 
Position Angle:                14° 57' 19" 
Pos. angle (bright limb):      66° 50' 42" 
Phase angle:                   14° 57' 19" 
Age:                          10.16

Mars Data
---------
Declination of earth:          25° 28' 21" 
Declination of Sun:            14° 08' 06" 
Longitude of the central Meridian:300° 00' 53" 
Pos. Angle:                   328° 29' 02" 

Jupiter Data
-----------------
Declination of earth:           2° 49' 46" 
Declination of Sun:             2° 55' 38" 
Longitude of the central Meridian:269° 59' 49" 
Pos. Angle:                     6° 10' 05" 

Saturn Data
---------
Declination of earth:          25° 07' 50" 
Declination of Sun:            25° 20' 01" 
Longitude of the central Meridian:  0° 00' 00" 
Pos. Angle:                     6° 17' 31" 


Name                          Month/Day    RA         Decl       Hourly Rate
----------------------------- ------------ ---------- ---------- -----------
Quadrantids                        01/03        15.3       48.5        80
Coma Berenicids                    01/10        11.7       25.0         8
Delta Cancrids                     01/16         8.4       20.0         7

Information and images in this section from TheSkyX Student Edition

Solar System Information

                         Lunar Eclipse Report for 2019

Lunar eclipse on  1/20/2019
Moon rise: 17:10
Moon set:   6:26
Magnitude:  1.19
Partial phase begins:    21:34
Total phase begins:      22:42
Time of maximum eclipse: 23:12
Total phase ends:        23:42
Partial phase ends:       0:50


                         Solar Eclipse Report for 2019

Solar eclipse on  1/ 5/2019
Sun rise:  7:02
Sun set:  17:18
Time of maximum eclipse: 19:44
Eclipse is partial, maximum magnitude =  0.72
Eclipse is visible in the northern hemisphere


              Planet View Info Report for  1/ 1/2019 to  1/31/2019

                                    Mercury

Date       Rise  Set     RA         Dec         Elongation   Ill Fr  DIST(AU)

 1/ 1/2019  5:53 16:03   17h33m16s  -23°10'11"   16°23'49"   0.893    1.29617
 1/ 8/2019  6:14 16:19   18h18m50s  -24°03'56"   13°06'42"   0.938    1.36466
 1/15/2019  6:33 16:40   19h06m17s  -23°56'46"    9°30'46"   0.969    1.40650
 1/22/2019  6:51 17:05   19h54m51s  -22°42'15"    5°38'37"   0.988    1.42269
 1/29/2019  7:05 17:34   20h43m56s  -20°16'10"    2°12'52"   0.998    1.41157

                                     Venus

Date       Rise  Set     RA         Dec         Elongation   Ill Fr  DIST(AU)

 1/ 1/2019  3:26 14:17   15h27m59s  -15°18'38"   46°51'40"   0.474    0.63470
 1/ 8/2019  3:31 14:14   15h56m32s  -16°54'37"   46°56'49"   0.512    0.68789
 1/15/2019  3:37 14:13   16h26m44s  -18°22'36"   46°43'10"   0.546    0.74105
 1/22/2019  3:45 14:14   16h58m24s  -19°36'44"   46°14'24"   0.579    0.79400
 1/29/2019  3:53 14:17   17h31m19s  -20°32'03"   45°33'25"   0.609    0.84653

                                      Mars

Date       Rise  Set     RA         Dec         Elongation   Ill Fr  DIST(AU)

 1/ 1/2019 11:20 23:24    0h00m15s   -0°17'53"   79°40'38"   0.873    1.26105
 1/ 8/2019 11:05 23:19    0h17m18s    1°42'57"   77°15'15"   0.877    1.32032
 1/15/2019 10:50 23:13    0h34m29s    3°42'53"   74°51'08"   0.882    1.38012
 1/22/2019 10:35 23:07    0h51m48s    5°41'06"   72°28'01"   0.887    1.44027
 1/29/2019 10:20 23:02    1h09m15s    7°36'50"   70°05'31"   0.891    1.50068

                                    Jupiter

Date       Rise  Set     RA         Dec         Elongation   Ill Fr  DIST(AU)

 1/ 1/2019  4:54 15:11   16h41m23s  -21°34'20"   28°29'27"   0.998    6.19341
 1/ 8/2019  4:33 14:49   16h47m34s  -21°45'43"   34°10'39"   0.997    6.13267
 1/15/2019  4:12 14:27   16h53m34s  -21°55'50"   39°54'35"   0.997    6.06279
 1/22/2019  3:51 14:05   16h59m20s  -22°04'42"   45°41'25"   0.996    5.98445
 1/29/2019  3:29 13:42   17h04m49s  -22°12'23"   51°31'40"   0.995    5.89834

                                     Saturn

Date       Rise  Set     RA         Dec         Elongation   Ill Fr  DIST(AU)

 1/ 1/2019  7:04 17:16   18h49m02s  -22°28'01"    1°10'02"   1.000   11.06185
 1/ 8/2019  6:40 16:52   18h52m36s  -22°24'10"    5°16'18"   1.000   11.05723
 1/15/2019  6:15 16:28   18h56m08s  -22°20'01"   11°34'22"   1.000   11.03978
 1/22/2019  5:51 16:04   18h59m37s  -22°15'36"   17°53'09"   1.000   11.00978
 1/29/2019  5:27 15:40   19h03m01s  -22°11'01"   24°12'38"   1.000   10.96761

                                     Uranus

Date       Rise  Set     RA         Dec         Elongation   Ill Fr  DIST(AU)

 1/ 1/2019 12:40  1:37    1h47m08s   10°28'49"  108°20'55"   0.999   19.53242
 1/ 8/2019 12:12  1:09    1h47m04s   10°28'44"  101°11'52"   0.999   19.64869
 1/15/2019 11:45  0:42    1h47m10s   10°29'34"   94°05'36"   0.999   19.76784
 1/22/2019 11:17  0:15    1h47m26s   10°31'18"   87°02'25"   0.999   19.88797
 1/29/2019 10:50 23:44    1h47m51s   10°33'55"   80°02'14"   0.999   20.00736

                                    Neptune

Date       Rise  Set     RA         Dec         Elongation   Ill Fr  DIST(AU)

 1/ 1/2019 10:38 22:07   23h02m52s   -7°09'19"   63°50'01"   1.000   30.35959
 1/ 8/2019 10:11 21:41   23h03m27s   -7°05'36"   56°51'13"   1.000   30.46522
 1/15/2019  9:44 21:14   23h04m06s   -7°01'22"   49°53'58"   1.000   30.56286
 1/22/2019  9:17 20:47   23h04m50s   -6°56'40"   42°58'30"   1.000   30.65114
 1/29/2019  8:50 20:21   23h05m38s   -6°51'35"   36°04'38"   1.000   30.72891

                                     Pluto

Date       Rise  Set     RA         Dec         Elongation   Ill Fr  DIST(AU)

 1/ 1/2019  7:42 17:57   19h29m09s  -21°57'34"   10°20'15"   1.000   34.67919
 1/ 8/2019  7:16 17:30   19h30m09s  -21°56'03"    3°26'14"   1.000   34.69838
 1/15/2019  6:49 17:04   19h31m10s  -21°54'31"    3°27'51"   1.000   34.70314
 1/22/2019  6:22 16:37   19h32m11s  -21°52'57"   10°21'10"   1.000   34.69356
 1/29/2019  5:56 16:11   19h33m10s  -21°51'25"   17°14'18"   1.000   34.66989

 
                         Planet Apsides Report for 2019

Earth
   1/ 3/2019  Perihelion   Distance from Sun:   0.98 AU

Mercury
   1/12/2019  Aphelion     Distance from Sun:   0.47 AU


       Planet Conjunction/Opposition Report for  1/ 1/2019 to  1/31/2019

Mercury

  Date        Hour   Event

   1/29/2019  21     Superior Conjunction               

Saturn

  Date        Hour   Event

   1/ 1/2019  21     Conjunction                        

Pluto

  Date        Hour   Event

   1/11/2019   6     Conjunction           (Occultation)

   
                               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  1/ 1/2019 to  1/31/2019

Date          Hour    Apsis      Distance (km)    Diameter

 1/ 8/2019    22      Apogee     406112           0.4904°
 1/21/2019    14      Perigee    357353           0.5573°


                 Moon Nodes Report for  1/ 1/2019 to  1/31/2019

Date          Time     Node          Illuminated Fraction

 1/ 6/2019    18:07    Descending    0.00
 1/20/2019    16:48    Ascending     1.00

 
               Meteor Showers Report for  1/ 1/2019 to  1/31/2019

Date        Meteor Shower       ZHR  RA      DEC   Illum. Frac.  Longitude

 1/ 3/2019  Quadrantids         80   15h28m   50°  0.05          283°


                  Twilight Report for  1/ 1/2019 to  1/31/2019


Date         Sun            Astronomical   Nautical       Civil
             Rise   Set     Begin  End     Begin  End     Begin  End

 1/ 1/2019    7:02  17:15    5:32  18:45    6:01  18:16    6:31  17:46
 1/ 8/2019    7:03  17:20    5:33  18:50    6:03  18:20    6:32  17:51
 1/15/2019    7:02  17:26    5:34  18:55    6:03  18:26    6:32  17:56
 1/22/2019    7:01  17:32    5:33  19:00    6:02  18:31    6:31  18:02
 1/29/2019    6:58  17:39    5:31  19:05    5:59  18:37    6:28  18:08

Information for this section is from Astronomy Lab 2.03

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Last updated on Wednesday, January 2, 2019, 01:26 PM.