B.R.A.S. 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. The Moon calendar shows the rise/set times. 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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April

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
------------ --------- --------- --------- --------- --------- ---------
4/1/2017         10:35    ------     06:53     19:24     05:33     20:45
4/2/2017         11:30     00:33     06:52     19:25     05:31     20:46
4/3/2017         12:27     01:34     06:51     19:25     05:30     20:47
4/4/2017         13:26     02:29     06:50     19:26     05:28     20:48
4/5/2017         14:26     03:19     06:49     19:27     05:27     20:48
4/6/2017         15:26     04:04     06:47     19:27     05:26     20:49
4/7/2017         16:23     04:45     06:46     19:28     05:24     20:50
4/8/2017         17:20     05:23     06:45     19:29     05:23     20:51
4/9/2017         18:16     05:59     06:44     19:29     05:22     20:52
4/10/2017        19:11     06:33     06:43     19:30     05:20     20:52
4/11/2017        20:04     07:08     06:42     19:30     05:19     20:53
4/12/2017        20:58     07:43     06:40     19:31     05:18     20:54
4/13/2017        21:51     08:19     06:39     19:32     05:16     20:55
4/14/2017        22:43     08:58     06:38     19:32     05:15     20:56
4/15/2017        23:34     09:39     06:37     19:33     05:14     20:57
4/16/2017       ------     10:22     06:36     19:34     05:12     20:57
4/17/2017        00:23     11:09     06:35     19:34     05:11     20:58
4/18/2017        01:11     11:59     06:34     19:35     05:10     20:59
4/19/2017        01:57     12:52     06:33     19:36     05:08     21:00
4/20/2017        02:40     13:47     06:31     19:36     05:07     21:01
4/21/2017        03:22     14:45     06:30     19:37     05:06     21:02
4/22/2017        04:02     15:45     06:29     19:37     05:04     21:03
4/23/2017        04:41     16:47     06:28     19:38     05:03     21:04
4/24/2017        05:22     17:51     06:27     19:39     05:02     21:04
4/25/2017        06:03     18:57     06:26     19:39     05:01     21:05
4/26/2017        06:46     20:05     06:25     19:40     04:59     21:06
4/27/2017        07:33     21:13     06:24     19:41     04:58     21:07
4/28/2017        08:24     22:20     06:23     19:41     04:57     21:08
4/29/2017        09:19     23:25     06:23     19:42     04:56     21:09
4/30/2017        10:17    ------     06:22     19:43     04:55     21:10

Information and images in this section from The Sky6 Professional

Solar System Information

              Planet View Info Report for  4/ 1/2017 to  4/30/2017

                                    Mercury

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

 4/ 1/2017  7:39 20:53    1h49m05s   13°55'24"   18°59'07"   0.430    0.89874
 4/ 8/2017  7:21 20:42    2h05m02s   16°02'04"   16°34'25"   0.188    0.73106
 4/15/2017  6:51 20:06    2h01m32s   15°15'46"    8°47'12"   0.037    0.61619
 4/22/2017  6:16 19:15    1h46m31s   12°15'27"    3°10'58"   0.004    0.56947
 4/29/2017  5:45 18:29    1h34m17s    9°00'19"   13°46'01"   0.074    0.58694

                                     Venus

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

 4/ 1/2017  5:56 18:32   23h51m50s    7°15'38"   12°48'10"   0.024    0.28808
 4/ 8/2017  5:26 17:51   23h43m04s    4°48'29"   21°10'37"   0.067    0.30867
 4/15/2017  5:02 17:19   23h41m29s    2°55'06"   28°38'02"   0.127    0.34050
 4/22/2017  4:43 16:55   23h46m55s    1°50'23"   34°26'29"   0.190    0.38073
 4/29/2017  4:27 16:39   23h58m09s    1°34'19"   38°42'19"   0.252    0.42682

                                      Mars

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

 4/ 1/2017  8:34 22:02    2h52m31s   16°54'24"   34°15'18"   0.964    2.23070
 4/ 8/2017  8:23 21:58    3h12m19s   18°20'44"   32°17'29"   0.968    2.27165
 4/15/2017  8:11 21:54    3h32m17s   19°38'44"   30°19'17"   0.972    2.31124
 4/22/2017  8:01 21:50    3h52m24s   20°47'54"   28°20'32"   0.975    2.34936
 4/29/2017  7:51 21:45    4h12m41s   21°47'49"   26°21'16"   0.979    2.38583

                                    Jupiter

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

 4/ 1/2017 19:46  7:26   13h13m00s   -6°01'28"  172°10'59"   1.000    4.46297
 4/ 8/2017 19:15  6:56   13h09m41s   -5°41'04"  178°24'50"   1.000    4.45357
 4/15/2017 18:43  6:26   13h06m21s   -5°20'53"  171°57'09"   1.000    4.45917
 4/22/2017 18:12  5:56   13h03m08s   -5°01'35"  164°19'31"   0.999    4.47953
 4/29/2017 17:41  5:26   13h00m07s   -4°43'50"  156°43'46"   0.999    4.51422

                                     Saturn

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

 4/ 1/2017  1:08 11:22   17h50m02s  -22°04'07"  103°46'13"   0.998    9.78917
 4/ 8/2017  0:40 10:54   17h50m07s  -22°03'42"  110°38'42"   0.998    9.67763
 4/15/2017  0:13 10:26   17h49m51s  -22°03'13"  117°34'11"   0.998    9.57106
 4/22/2017 23:40  9:58   17h49m15s  -22°02'42"  124°32'53"   0.998    9.47099
 4/29/2017 23:12  9:30   17h48m19s  -22°02'08"  131°34'40"   0.999    9.37897

                                     Uranus

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

 4/ 1/2017  7:30 20:15    1h28m37s    8°40'39"   12°15'44"   1.000   20.90852
 4/ 8/2017  7:04 19:49    1h30m06s    8°49'29"    5°46'44"   1.000   20.92836
 4/15/2017  6:37 19:23    1h31m37s    8°58'20"    0°54'25"   1.000   20.93484
 4/22/2017  6:11 18:58    1h33m07s    9°07'09"    7°10'33"   1.000   20.92797
 4/29/2017  5:44 18:32    1h34m37s    9°15'49"   13°35'14"   1.000   20.90780

                                    Neptune

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

 4/ 1/2017  5:38 17:06   22h57m57s   -7°32'27"   28°39'23"   1.000   30.82298
 4/ 8/2017  5:11 16:39   22h58m49s   -7°27'15"   35°18'56"   1.000   30.76121
 4/15/2017  4:44 16:13   22h59m39s   -7°22'23"   41°57'39"   1.000   30.68817
 4/22/2017  4:17 15:46   23h00m24s   -7°17'55"   48°35'54"   1.000   30.60483
 4/29/2017  3:50 15:20   23h01m05s   -7°13'54"   55°13'56"   1.000   30.51227

                                     Pluto

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

 4/ 1/2017  2:38 12:57   19h23m02s  -21°09'16"   82°09'36"   1.000   33.42197
 4/ 8/2017  2:11 12:30   19h23m16s  -21°09'16"   88°59'55"   1.000   33.30728
 4/15/2017  1:43 12:02   19h23m25s  -21°09'28"   95°49'56"   1.000   33.19239
 4/22/2017  1:16 11:35   19h23m27s  -21°09'53"  102°39'57"   1.000   33.07890
 4/29/2017  0:48 11:07   19h23m23s  -21°10'31"  109°30'02"   1.000   32.96849


       Planet Conjunction/Opposition Report for  4/ 1/2017 to  4/30/2017

Mercury

  Date        Hour   Event

   4/20/2017   0     Inferior Conjunction               

Jupiter

  Date        Hour   Event

   4/ 7/2017  18     Opposition                         

Uranus

  Date        Hour   Event

   4/14/2017   0     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  4/ 1/2017 to  4/30/2017

Date          Hour    Apsis      Distance (km)    Diameter

 4/15/2017     5      Apogee     405487           0.4912°
 4/27/2017    11      Perigee    359341           0.5542°


                 Moon Nodes Report for  4/ 1/2017 to  4/30/2017

Date          Time     Node          Illuminated Fraction

 4/ 7/2017     4:13    Ascending     0.84
 4/21/2017    17:29    Descending    0.27


               Meteor Showers Report for  4/ 1/2017 to  4/30/2017

Date        Meteor Shower       ZHR  RA      DEC   Illum. Frac.  Longitude

 4/11/2017  Virginids            5   14h04m   -9°  1.00           22°
 4/21/2017  Lyrids              12   18h08m   32°  0.27           32°
 4/27/2017  alpha-Scorpiids      5   16h32m  -24°  0.03           38°

Information for this section is from Astronomy Lab 2.03

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Last updated on Saturday, April 1, 2017, 04:33 PM.