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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January

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

Information and images in this section from The Sky6 Professional

Solar System Information

                         Lunar Eclipse Report for 2018

Lunar eclipse on  1/31/2018
Moon rise: 18:06
Moon set:   6:58
Magnitude:  1.32
Partial phase begins:     5:52
Total phase begins:       6:55
Time of maximum eclipse:  7:33
Total phase ends:         8:11
Partial phase ends:       9:14


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

                                    Mercury

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

 1/ 1/2018  5:20 15:41   17h08m24s  -20°53'30"   22°38'21"   0.617    0.99888
 1/ 8/2018  5:31 15:45   17h42m00s  -22°22'48"   21°49'19"   0.756    1.13064
 1/15/2018  5:47 15:56   18h22m33s  -23°19'06"   19°35'53"   0.841    1.23497
 1/22/2018  6:03 16:13   19h06m46s  -23°22'57"   16°38'13"   0.898    1.31292
 1/29/2018  6:19 16:35   19h53m00s  -22°25'06"   13°08'43"   0.938    1.36656

                                     Venus

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

 1/ 1/2018  6:57 17:05   18h37m16s  -23°37'44"    2°01'55"   0.999    1.70917
 1/ 8/2018  7:06 17:17   19h15m34s  -23°01'41"    0°47'06"   1.000    1.71095
 1/15/2018  7:13 17:31   19h53m21s  -21°51'00"    1°40'06"   1.000    1.71082
 1/22/2018  7:17 17:45   20h30m21s  -20°08'05"    3°15'02"   0.999    1.70872
 1/29/2018  7:20 17:59   21h06m23s  -17°56'19"    4°53'37"   0.997    1.70466

                                      Mars

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

 1/ 1/2018  2:44 13:35   14h47m57s  -15°13'43"   56°20'39"   0.932    1.95578
 1/ 8/2018  2:37 13:21   15h05m17s  -16°31'04"   59°06'56"   0.927    1.89375
 1/15/2018  2:30 13:08   15h22m46s  -17°42'51"   61°54'04"   0.922    1.83023
 1/22/2018  2:23 12:55   15h40m25s  -18°48'35"   64°42'00"   0.917    1.76542
 1/29/2018  2:16 12:43   15h58m11s  -19°47'54"   67°30'31"   0.912    1.69963

                                    Jupiter

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

 1/ 1/2018  2:56 13:43   14h59m08s  -15°53'05"   53°34'50"   0.995    5.95705
 1/ 8/2018  2:34 13:19   15h03m42s  -16°11'32"   59°34'17"   0.994    5.86159
 1/15/2018  2:11 12:55   15h07m56s  -16°28'06"   65°39'05"   0.993    5.76017
 1/22/2018  1:48 12:31   15h11m47s  -16°42'39"   71°49'34"   0.993    5.65381
 1/29/2018  1:25 12:06   15h15m12s  -16°55'08"   78°05'53"   0.992    5.54375

                                     Saturn

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

 1/ 1/2018  6:20 16:31   18h05m42s  -22°31'31"    9°14'01"   1.000   11.05342
 1/ 8/2018  5:56 16:07   18h09m14s  -22°31'13"   15°32'05"   1.000   11.02819
 1/15/2018  5:32 15:43   18h12m41s  -22°30'35"   21°51'48"   1.000   10.99056
 1/22/2018  5:07 15:19   18h16m02s  -22°29'40"   28°12'49"   0.999   10.94089
 1/29/2018  4:43 14:55   18h19m15s  -22°28'28"   34°34'58"   0.999   10.87982

                                     Uranus

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

 1/ 1/2018 12:27  1:17    1h31m53s    8°59'14"  104°03'15"   0.999   19.64282
 1/ 8/2018 12:00  0:50    1h31m55s    8°59'43"   96°56'03"   0.999   19.76105
 1/15/2018 11:32  0:22    1h32m07s    9°01'08"   89°51'22"   0.999   19.88112
 1/22/2018 11:05 23:51    1h32m28s    9°03'28"   82°49'29"   0.999   20.00117
 1/29/2018 10:38 23:25    1h32m59s    9°06'43"   75°50'48"   0.999   20.11936

                                    Neptune

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

 1/ 1/2018 10:30 21:56   22h54m40s   -7°56'12"   61°24'18"   1.000   30.40314
 1/ 8/2018 10:03 21:30   22h55m17s   -7°52'21"   54°26'16"   1.000   30.50606
 1/15/2018  9:36 21:03   22h55m58s   -7°48'00"   47°29'30"   1.000   30.60061
 1/22/2018  9:09 20:36   22h56m44s   -7°43'14"   40°34'12"   1.000   30.68536
 1/29/2018  8:43 20:10   22h57m33s   -7°38'04"   33°40'42"   1.000   30.75911

                                     Pluto

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

 1/ 1/2018  7:32 17:49   19h21m04s  -21°40'11"    8°16'59"   1.000   34.44890
 1/ 8/2018  7:06 17:22   19h22m05s  -21°38'51"    1°26'43"   1.000   34.46369
 1/15/2018  6:39 16:56   19h23m06s  -21°37'29"    5°32'07"   1.000   34.46411
 1/22/2018  6:13 16:29   19h24m07s  -21°36'06"   12°25'05"   1.000   34.45015
 1/29/2018  5:46 16:03   19h25m07s  -21°34'43"   19°18'03"   1.000   34.42213


                         Planet Apsides Report for 2018

Earth
   1/ 3/2018  Perihelion   Distance from Sun:   0.98 AU

Mercury
   1/25/2018  Aphelion     Distance from Sun:   0.47 AU

Venus
   1/23/2018  Aphelion     Distance from Sun:   0.73 AU


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

Venus

  Date        Hour   Event

   1/ 9/2018   0     Superior Conjunction               
 
Pluto

  Date        Hour   Event

   1/ 9/2018   3     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  1/ 1/2018 to  1/31/2018

Date          Hour    Apsis      Distance (km)    Diameter

 1/ 1/2018    16      Perigee    356584           0.5585°
 1/14/2018    20      Apogee     406466           0.4900°
 1/30/2018     4      Perigee    358986           0.5548°


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

Date          Time     Node          Illuminated Fraction

 1/ 4/2018     1:47    Ascending     0.94
 1/18/2018     8:27    Descending    0.01


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

Date        Meteor Shower       ZHR  RA      DEC   Illum. Frac.  Longitude

 1/ 3/2018  Quadrantids         80   15h28m   50°  0.96          283°


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

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

 1/ 1/2018    7:02  17:15    5:32  18:45    6:01  18:16    6:31  17:46
 1/ 8/2018    7:03  17:21    5:34  18:50    6:03  18:21    6:32  17:51
 1/15/2018    7:02  17:26    5:34  18:55    6:03  18:26    6:32  17:57
 1/22/2018    7:01  17:33    5:33  19:00    6:02  18:31    6:31  18:02
 1/29/2018    6:57  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 Tuesday, January 2, 2018, 03:12 PM.