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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May

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

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

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Last updated on Wednesday, May 1, 2019, 12:10 PM.