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

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

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

Object       Right ascensio Declination   Azimuth       Altitude      Earth distance  Sun distance    
------------ -------------- ------------- ------------- ------------- --------------- --------------- 
Sun          21h 53m 58.3s  -12° 45' 54"  345° 07' 41"  -71° 47' 07"                0               0 
Mercury      22h 42m 31.5s  -09° 14' 48"  319° 55' 28"  -63° 36' 15"      183,271,814      50,309,174 
Venus        18h 55m 55.9s  -21° 04' 31"   84° 53' 38"  -53° 09' 41"      145,552,630     108,098,692 
Mars         01h 52m 59.6s  +12° 07' 12"  294° 05' 32"  -14° 52' 48"      246,767,726     226,022,484 
Jupiter      17h 16m 55.5s  -22° 26' 37"   98° 42' 20"  -32° 24' 33"      846,403,459     798,313,665 
Saturn       19h 11m 08.7s  -21° 59' 09"   83° 58' 34"  -56° 46' 34"    1,615,234,483   1,504,699,417 
Uranus       01h 49m 33.0s  +10° 44' 00"  293° 27' 11"  -16° 22' 56"    3,034,691,880   2,970,546,289 
Neptune      23h 07m 48.8s  -06° 37' 53"  312° 53' 31"  -57° 44' 52"    4,617,918,140   4,478,646,047 
Pluto        19h 35m 27.8s  -21° 47' 57"   79° 16' 04"  -61° 53' 16"    5,169,231,871   5,047,699,658 
Moon         05h 36m 36.8s  +20° 19' 16"  274° 10' 27"  +35° 47' 27"          371,170               0 

Object       Rise:  Tran  Set: Phase   Constl    Magnitud 
------------ ----- ----- ----- ------- --------- -------- 
Sun          06:45 12:19 17:53   0.00%       Cap  unknown 
Mercury      07:27 13:09 18:52  88.76%       Aqr     -1.2 
Venus        04:11 09:21 14:32  67.54%       Sgr     -4.2 
Mars         09:45 16:17 22:49  90.41%       Ari      1.0 
Jupiter      02:35 07:41 12:46  99.28%       Oph     -2.0 
Saturn       04:27 09:34 14:42  99.90%       Sgr      0.6 
Uranus       09:45 16:12 22:39  99.95%       Ari      5.8 
Neptune      07:44 13:30 19:17 100.00%       Aqr      8.0 
Pluto        04:50 09:58 15:05  99.99%       Sgr     14.3 
Moon         13:44 20:52 03:02  74.30%       Tau  unknown 

Moon Data
---------
Distance (km):                371,169.8
Distance (miles):             230,634.8
True Equatorial:              05h 39m 45.1s +20° 38' 12" 
Angular diameter:               0° 32' 31" 
Total libration (l,b):          6° 50' 24"  ,  3° 31' 23" 
Optical libration:              6° 49' 02"  ,  3° 29' 12" 
Physical libration:             0° 01' 22"  ,  0° 02' 11" 
Position Angle:                 0° 42' 03" 
Pos. angle (bright limb):      60° 54' 56" 
Phase angle:                    0° 42' 03" 
Age:                          10.37

Mars Data
---------
Declination of earth:          21° 23' 39" 
Declination of Sun:             7° 49' 27" 
Longitude of the central Meridian: 14° 31' 48" 
Pos. Angle:                   322° 25' 49" 

Jupiter Data
-----------------
Declination of earth:           2° 47' 44" 
Declination of Sun:             2° 52' 47" 
Longitude of the central Meridian:348° 51' 48" 
Pos. Angle:                     3° 48' 01" 

Saturn Data
---------
Declination of earth:          24° 26' 08" 
Declination of Sun:            25° 11' 25" 
Longitude of the central Meridian:  0° 00' 00" 
Pos. Angle:                     6° 26' 37" 


Name                          Month/Day    RA         Decl       Hourly Rate
----------------------------- ------------ ---------- ---------- -----------
Alpha Centaurids                   02/08        14.0      -59.0        10
Delta Leonids                      02/26        10.6       19.0        24

Information and images in this section from TheSkyX Student Edition

Solar System Information

              Planet View Info Report for  2/ 1/2019 to  2/28/2019

                                    Mercury

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

 2/ 1/2019  7:11 17:47   21h05m01s  -18°51'03"    2°28'29"   0.997    1.39729
 2/ 8/2019  7:21 18:19   21h53m51s  -14°40'39"    6°53'40"   0.975    1.33700
 2/15/2019  7:27 18:52   22h40m56s   -9°26'34"   12°14'29"   0.892    1.22987
 2/22/2019  7:26 19:17   23h22m16s   -3°44'52"   16°48'10"   0.697    1.06920

                                     Venus

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

 2/ 1/2019  3:56 14:19   17h45m44s  -20°48'56"   45°12'46"   0.621    0.86886
 2/ 8/2019  4:04 14:25   18h19m57s  -21°10'28"   44°18'32"   0.649    0.92042
 2/15/2019  4:11 14:32   18h54m41s  -21°05'09"   43°17'00"   0.675    0.97120
 2/22/2019  4:16 14:41   19h29m39s  -20°31'44"   42°09'10"   0.699    1.02117

                                      Mars

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

 2/ 1/2019 10:14 23:00    1h16m47s    8°25'32"   69°04'37"   0.894    1.52662
 2/ 8/2019  9:59 22:54    1h34m29s   10°16'37"   66°42'59"   0.899    1.58714
 2/15/2019  9:45 22:49    1h52m22s   12°03'35"   64°22'11"   0.904    1.64745
 2/22/2019  9:32 22:44    2h10m27s   13°45'42"   62°02'02"   0.909    1.70738

                                    Jupiter

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

 2/ 1/2019  3:20 13:33   17h07m05s  -22°15'20"   54°02'57"   0.994    5.85922
 2/ 8/2019  2:57 13:10   17h12m07s  -22°21'25"   59°58'55"   0.994    5.76326
 2/15/2019  2:35 12:47   17h16m46s  -22°26'27"   65°59'08"   0.993    5.66157
 2/22/2019  2:12 12:23   17h21m01s  -22°30'34"   72°03'55"   0.992    5.55524

                                     Saturn

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

 2/ 1/2019  5:16 15:30   19h04m27s  -22°09'00"   26°55'35"   1.000   10.94590
 2/ 8/2019  4:52 15:06   19h07m41s  -22°04'15"   33°16'29"   0.999   10.88706
 2/15/2019  4:27 14:42   19h10m45s  -21°59'29"   39°38'21"   0.999   10.81741
 2/22/2019  4:02 14:17   19h13m40s  -21°54'47"   46°01'20"   0.999   10.73784

                                     Uranus

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

 2/ 1/2019 10:39 23:32    1h48m05s   10°35'18"   77°03'04"   0.999   20.05788
 2/ 8/2019 10:12 23:06    1h48m44s   10°39'08"   70°07'14"   0.999   20.17324
 2/15/2019  9:45 22:39    1h49m31s   10°43'45"   63°14'49"   1.000   20.28367
 2/22/2019  9:18 22:13    1h50m26s   10°49'05"   56°25'49"   1.000   20.38767

                                    Neptune

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

 2/ 1/2019  8:38 20:09   23h06m00s   -6°49'18"   33°07'44"   1.000   30.75876
 2/ 8/2019  8:11 19:43   23h06m53s   -6°43'44"   26°16'08"   1.000   30.81968
 2/15/2019  7:45 19:17   23h07m48s   -6°37'56"   19°26'30"   1.000   30.86774
 2/22/2019  7:18 18:50   23h08m46s   -6°31'57"   12°39'07"   1.000   30.90239

                                     Pluto

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

 2/ 1/2019  5:44 16:00   19h33m35s  -21°50'47"   20°11'19"   1.000   34.65551
 2/ 8/2019  5:18 15:33   19h34m32s  -21°49'19"   27°04'11"   1.000   34.61235
 2/15/2019  4:51 15:06   19h35m26s  -21°47'57"   33°56'34"   1.000   34.55639
 2/22/2019  4:24 14:40   19h36m17s  -21°46'42"   40°48'23"   1.000   34.48859


                         Planet Apsides Report for 2019

Mercury
   2/25/2019  Perihelion   Distance from Sun:   0.31 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  2/ 1/2019 to  2/28/2019

Date          Hour    Apsis      Distance (km)    Diameter

 2/ 5/2019     3      Apogee     406558           0.4899°
 2/19/2019     3      Perigee    356771           0.5582°


                 Moon Nodes Report for  2/ 1/2019 to  2/28/2019

Date          Time     Node          Illuminated Fraction

 2/ 3/2019     0:34    Descending    0.03
 2/17/2019     3:41    Ascending     0.91


                  Twilight Report for  2/ 1/2019 to  2/28/2019

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

 2/ 1/2019    6:56  17:41    5:30  19:07    5:58  18:39    6:27  18:10
 2/ 8/2019    6:51  17:47    5:26  19:12    5:54  18:44    6:22  18:16
 2/15/2019    6:45  17:53    5:21  19:17    5:49  18:50    6:17  18:21
 2/22/2019    6:39  17:58    5:15  19:22    5:42  18:54    6:10  18:26

Information for this section is from Astronomy Lab 2.03

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Last updated on Friday, February 1, 2019, 01:16 PM.