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 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

Kisatchie Clear Sky Clock
Click on image for more info and details. This clock is for the Kisatchie area only.

Kisatchie Clear Sky Clock

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May

Moon Calendar

Moon Calendar image

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

  Date       Moonrise   Moonset   Sunrise   Sunset   Twilight  Twilight
------------ --------- --------- --------- --------- --------- ---------
5/1/2018         21:26     07:40     06:21     19:43     04:54     21:11
5/2/2018         22:20     08:20     06:20     19:44     04:53     21:12
5/3/2018         23:12     09:04     06:19     19:44     04:51     21:13
5/4/2018        ------     09:51     06:18     19:45     04:50     21:14
5/5/2018         00:01     10:39     06:17     19:46     04:49     21:14
5/6/2018         00:47     11:31     06:17     19:46     04:48     21:15
5/7/2018         01:30     12:23     06:16     19:47     04:47     21:16
5/8/2018         02:10     13:17     06:15     19:48     04:46     21:17
5/9/2018         02:47     14:11     06:14     19:48     04:45     21:18
5/10/2018        03:23     15:07     06:14     19:49     04:44     21:19
5/11/2018        03:58     16:04     06:13     19:50     04:43     21:20
5/12/2018        04:33     17:04     06:12     19:50     04:42     21:21
5/13/2018        05:10     18:05     06:12     19:51     04:41     21:22
5/14/2018        05:49     19:09     06:11     19:52     04:40     21:23
5/15/2018        06:31     20:15     06:10     19:52     04:39     21:24
5/16/2018        07:20     21:22     06:10     19:53     04:38     21:25
5/17/2018        08:13     22:26     06:09     19:54     04:37     21:26
5/18/2018        09:12     23:28     06:09     19:54     04:36     21:27
5/19/2018        10:15    ------     06:08     19:55     04:36     21:28
5/20/2018        11:20     00:23     06:07     19:55     04:35     21:28
5/21/2018        12:24     01:13     06:07     19:56     04:34     21:29
5/22/2018        13:27     01:57     06:06     19:57     04:33     21:30
5/23/2018        14:28     02:36     06:06     19:57     04:33     21:31
5/24/2018        15:28     03:14     06:06     19:58     04:32     21:32
5/25/2018        16:26     03:49     06:05     19:58     04:31     21:33
5/26/2018        17:24     04:24     06:05     19:59     04:31     21:34
5/27/2018        18:20     05:00     06:04     20:00     04:30     21:34
5/28/2018        19:17     05:38     06:04     20:00     04:29     21:35
5/29/2018        20:12     06:17     06:04     20:01     04:29     21:36
5/30/2018        21:05     06:59     06:04     20:01     04:28     21:37
5/31/2018        21:56     07:45     06:03     20:02     04:28     21:37

Information and images in this section from The Sky6 Professional

Solar System Information

              Planet View Info Report for  5/ 1/2018 to  5/31/2018

                                    Mercury

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

 5/ 1/2018  5:15 17:34    0h55m02s    2°46'20"   26°59'05"   0.458    0.85893
 5/ 8/2018  5:11 17:46    1h26m06s    5°49'22"   25°27'29"   0.567    0.96986
 5/15/2018  5:12 18:08    2h04m07s    9°49'17"   21°58'19"   0.680    1.08321
 5/22/2018  5:19 18:38    2h49m29s   14°24'01"   16°41'14"   0.804    1.19168
 5/29/2018  5:34 19:18    3h43m24s   19°02'45"    9°40'14"   0.928    1.27980

                                     Venus

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

 5/ 1/2018  7:53 21:53    4h22m54s   22°25'33"   27°05'39"   0.885    1.45020
 5/ 8/2018  7:58 22:06    4h59m13s   23°51'23"   28°46'58"   0.868    1.41380
 5/15/2018  8:05 22:18    5h36m00s   24°44'28"   30°27'09"   0.851    1.37500
 5/22/2018  8:13 22:28    6h12m57s   25°03'08"   32°05'57"   0.831    1.33381
 5/29/2018  8:23 22:36    6h49m41s   24°46'59"   33°42'56"   0.811    1.29035

                                      Mars

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

 5/ 1/2018  1:05 11:16   19h42m08s  -22°41'23"  107°08'32"   0.882    0.84506
 5/ 8/2018  0:50 11:03   19h55m49s  -22°24'18"  110°45'44"   0.886    0.78834
 5/15/2018  0:34 10:49   20h08m29s  -22°08'06"  114°35'44"   0.891    0.73377
 5/22/2018  0:18 10:33   20h19m57s  -21°54'29"  118°41'12"   0.898    0.68170
 5/29/2018 23:57 10:16   20h30m03s  -21°45'08"  123°04'44"   0.906    0.63244

                                    Jupiter

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

 5/ 1/2018 20:11  6:59   15h09m08s  -16°20'31"  171°07'38"   1.000    4.41265
 5/ 8/2018 19:39  6:29   15h05m35s  -16°06'25"  178°18'44"   1.000    4.40002
 5/15/2018 19:07  5:58   15h02m01s  -15°52'14"  173°20'25"   1.000    4.40216
 5/22/2018 18:36  5:28   14h58m33s  -15°38'29"  165°47'47"   0.999    4.41898
 5/29/2018 18:04  4:58   14h55m18s  -15°25'39"  158°16'57"   0.999    4.44995

                                     Saturn

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

 5/ 1/2018 23:56 10:13   18h38m35s  -22°14'35"  121°39'42"   0.998    9.51940
 5/ 8/2018 23:27  9:44   18h37m48s  -22°15'19"  128°37'38"   0.998    9.42384
 5/15/2018 22:59  9:15   18h36m42s  -22°16'22"  135°38'44"   0.999    9.33711
 5/22/2018 22:30  8:46   18h35m19s  -22°17'41"  142°42'33"   0.999    9.26065
 5/29/2018 22:01  8:17   18h33m41s  -22°19'14"  149°48'31"   0.999    9.19568

                                     Uranus

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

 5/ 1/2018  5:49 18:43    1h49m19s   10°41'37"   11°24'01"   1.000   20.87798
 5/ 8/2018  5:22 18:17    1h50m48s   10°49'54"   17°47'18"   1.000   20.84921
 5/15/2018  4:56 17:52    1h52m16s   10°57'55"   24°10'12"   1.000   20.80778
 5/22/2018  4:29 17:26    1h53m40s   11°05'35"   30°32'48"   1.000   20.75420
 5/29/2018  4:03 17:00    1h55m00s   11°12'50"   36°55'13"   1.000   20.68925

                                    Neptune

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

 5/ 1/2018  3:50 15:23   23h09m24s   -6°25'45"   54°43'24"   1.000   30.51344
 5/ 8/2018  3:23 14:56   23h10m01s   -6°22'09"   61°20'33"   1.000   30.41369
 5/15/2018  2:56 14:29   23h10m33s   -6°19'06"   67°57'54"   1.000   30.30726
 5/22/2018  2:28 14:02   23h11m00s   -6°16'36"   74°35'29"   1.000   30.19562
 5/29/2018  2:01 13:35   23h11m21s   -6°14'43"   81°13'19"   1.000   30.08037

                                     Pluto

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

 5/ 1/2018  0:51 11:08   19h31m46s  -21°28'36"  109°19'05"   1.000   33.20673
 5/ 8/2018  0:23 10:40   19h31m37s  -21°29'34"  116°08'32"   1.000   33.10111
 5/15/2018 23:51 10:12   19h31m21s  -21°30'46"  122°58'11"   1.000   33.00172
 5/22/2018 23:23  9:44   19h31m00s  -21°32'10"  129°47'54"   1.000   32.91011
 5/29/2018 22:56  9:16   19h30m34s  -21°33'44"  136°37'30"   1.000   32.82769


                         Planet Apsides Report for 2018

Venus
   5/15/2018  Perihelion   Distance from Sun:   0.72 AU


       Planet Conjunction/Opposition Report for  5/ 1/2018 to  5/31/2018

Jupiter

  Date        Hour   Event

   5/ 8/2018  19     Opposition                         


                               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/ 1/2018 to  5/31/2018

Date          Hour    Apsis      Distance (km)    Diameter

 5/ 5/2018    19      Apogee     404456           0.4924°
 5/17/2018    16      Perigee    363777           0.5475°


                 Moon Nodes Report for  5/ 1/2018 to  5/31/2018

Date          Time     Node          Illuminated Fraction

 5/ 7/2018     5:23    Descending    0.58
 5/20/2018     8:12    Ascending     0.30


               Meteor Showers Report for  5/ 1/2018 to  5/31/2018

Date        Meteor Shower       ZHR  RA      DEC   Illum. Frac.  Longitude

 5/ 5/2018  eta-Aquarids        35   22h20m   -1°  0.71           45°
 5/12/2018  alpha-Scorpiids      5   16h04m  -24°  0.09           52°


                  Twilight Report for  5/ 1/2018 to  5/31/2018

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

 5/ 1/2018    6:21  19:43    4:50  21:14    5:21  20:43    5:52  20:12
 5/ 8/2018    6:15  19:48    4:42  21:21    5:14  20:48    5:45  20:17
 5/15/2018    6:10  19:52    4:35  21:27    5:08  20:54    5:40  20:23
 5/22/2018    6:07  19:57    4:30  21:34    5:04  21:00    5:36  20:27
 5/29/2018    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 Tuesday, May 1, 2018, 12:48 PM.