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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October

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

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


Object       Right ascensio Declination   Azimuth       Altitude      Earth distance  Sun distance    
------------ -------------- ------------- ------------- ------------- --------------- --------------- 
Sun          13h 20m 34.3s  -08° 29' 27"  329° 06' 07"  -65° 03' 46"                0               0 
Mercury      14h 20m 40.9s  -15° 09' 04"  294° 52' 51"  -60° 23' 13"      199,430,616      69,789,374 
Venus        14h 16m 37.9s  -21° 32' 37"  284° 05' 01"  -64° 30' 52"       43,909,690     108,536,968 
Mars         21h 02m 30.9s  -20° 06' 28"  231° 22' 25"  +19° 00' 12"      101,335,259     207,541,984 
Jupiter      15h 30m 42.3s  -18° 16' 09"  275° 50' 51"  -47° 23' 04"      924,485,100     803,587,159 
Saturn       18h 16m 13.8s  -22° 46' 13"  251° 37' 55"  -14° 06' 49"    1,544,944,661   1,505,415,552 
Uranus       01h 55m 56.6s  +11° 15' 54"  129° 18' 11"  +62° 20' 15"    2,825,268,781   2,972,659,263 
Neptune      23h 03m 06.2s  -07° 09' 42"  212° 34' 54"  +47° 00' 23"    4,359,929,931   4,478,942,452 
Pluto        19h 21m 26.1s  -22° 06' 07"  244° 36' 06"  -00° 44' 20"    5,041,306,225   5,035,726,890 
Moon         18h 17m 34.7s  -21° 26' 15"  252° 41' 51"  -13° 13' 06"          399,938               0 

Object       Rise:  Tran  Set: Phase   Constl    Magnitud 
------------ ----- ----- ----- ------- --------- -------- 
Sun          06:06 11:51 17:35   0.00%       Vir  unknown 
Mercury      07:23 12:50 18:17  90.22%       Vir     -0.3 
Venus        07:41 12:49 17:57   5.16%       Vir     -4.3 
Mars         14:20 19:33 00:47  86.95%       Cap     -1.0 
Jupiter      08:45 14:02 19:19  99.74%       Lib     -1.8 
Saturn       11:42 16:47 21:52  99.78%       Sgr      0.6 
Uranus       17:57 00:30 06:58 100.00%       Ari      5.7 
Neptune      15:49 21:33 03:22  99.99%       Aqr      7.8 
Pluto        12:44 17:51 22:58  99.98%       Sgr     14.3 
Moon         11:18 16:37 21:56  35.60%       Sgr  unknown 

Moon Data
---------
Distance (km):                399,938.3
Distance (miles):             248,510.8
True Equatorial:              18h 20m 58.7s -21° 01' 25" 
Angular diameter:               0° 29' 46" 
Total libration (l,b):          4° 05' 17"  ,  2° 59' 37" 
Optical libration:              4° 03' 41"  ,  3° 01' 11" 
Physical libration:             0° 01' 36"  ,  0° 01' 34" 
Position Angle:                 3° 28' 44" 
Pos. angle (bright limb):     106° 44' 26" 
Phase angle:                    3° 28' 44" 
Age:                          6.05

Mars Data
---------
Declination of earth:          16° 55' 06" 
Declination of Sun:            25° 11' 32" 
Longitude of the central Meridian:125° 58' 55" 
Pos. Angle:                     1° 22' 12" 

Jupiter Data
-----------------
Declination of earth:           2° 53' 31" 
Declination of Sun:             3° 02' 30" 
Longitude of the central Meridian:353° 10' 10" 
Pos. Angle:                    14° 27' 50" 

Saturn Data
---------
Declination of earth:          26° 33' 50" 
Declination of Sun:            25° 44' 06" 
Longitude of the central Meridian:  0° 00' 00" 
Pos. Angle:                     5° 41' 12" 

Meteor Radiant Report

Name                          Month/Day    RA         Decl       Hourly Rate
----------------------------- ------------ ---------- ---------- -----------
Southern Annual Andromedids        10/03         0.3        8.0        13
Northern Annual Andromedids        10/03         1.3       34.0        10
October Draconids/Giacobinids      10/09        17.5       54.1         2
Northern Piscids                   10/12         1.7       14.0         6
Epsilon Geminids                   10/19         6.9       27.0         5
Orionids                           10/21         6.3       15.8        30
Leo Minorids                       10/24        10.8       37.0         3

Information and images in this section from TheSkyX Student Edition

Solar System Information

              Planet View Info Report for 10/ 1/2018 to 10/31/2018

                                    Mercury

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

10/ 1/2018  7:36 19:14   12h57m45s   -5°33'06"    7°41'35"   0.976    1.40558
10/ 8/2018  8:02 19:15   13h39m14s  -10°33'25"   12°10'09"   0.944    1.38239
10/15/2018  8:26 19:17   14h19m32s  -15°01'47"   16°02'14"   0.903    1.33488
10/22/2018  8:47 19:19   14h59m03s  -18°51'00"   19°18'08"   0.851    1.26416
10/29/2018  9:06 19:22   15h37m25s  -21°52'58"   21°50'47"   0.778    1.16949

                                     Venus

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

10/ 1/2018  9:37 19:54   14h22m47s  -21°24'10"   33°15'49"   0.172    0.36084
10/ 8/2018  9:11 19:25   14h23m26s  -21°59'21"   27°01'00"   0.110    0.32325
10/15/2018  8:35 18:52   14h16m55s  -21°34'10"   19°01'54"   0.053    0.29422
10/22/2018  7:50 18:16   14h04m22s  -19°59'55"   10°03'45"   0.015    0.27651
10/29/2018  7:01 17:41   13h49m31s  -17°28'03"    6°57'55"   0.007    0.27246

                                      Mars

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

10/ 1/2018 15:55  2:09   20h37m26s  -22°32'37"  118°06'14"   0.885    0.59242
10/ 8/2018 15:36  1:57   20h49m10s  -21°24'11"  114°09'33"   0.876    0.63315
10/15/2018 15:18  1:46   21h02m08s  -20°08'33"  110°31'10"   0.870    0.67606
10/22/2018 15:01  1:36   21h16m06s  -18°46'02"  107°08'11"   0.865    0.72090
10/29/2018 14:44  1:27   21h30m48s  -17°17'05"  103°57'26"   0.861    0.76753

                                    Jupiter

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

10/ 1/2018 10:24 21:02   15h19m28s  -17°32'53"   44°18'51"   0.996    6.04577
10/ 8/2018 10:02 20:39   15h24m53s  -17°54'09"   38°45'23"   0.997    6.11596
10/15/2018  9:41 20:16   15h30m33s  -18°15'33"   33°13'31"   0.997    6.17777
10/22/2018  9:21 19:53   15h36m25s  -18°36'54"   27°43'01"   0.998    6.23062
10/29/2018  9:00 19:31   15h42m29s  -18°57'58"   22°13'22"   0.999    6.27409

                                     Saturn

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

10/ 1/2018 13:30 23:40   18h12m53s  -22°45'06"   85°11'57"   0.998   10.11644
10/ 8/2018 13:04 23:14   18h14m15s  -22°45'37"   78°37'07"   0.998   10.23142
10/15/2018 12:38 22:48   18h15m55s  -22°45'57"   72°04'52"   0.998   10.34380
10/22/2018 12:13 22:23   18h17m53s  -22°46'03"   65°35'13"   0.998   10.45204
10/29/2018 11:47 21:58   18h20m08s  -22°45'53"   59°07'47"   0.998   10.55484

                                     Uranus

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

10/ 1/2018 19:50  8:52    1h58m02s   11°27'14"  156°18'33"   1.000   18.95339
10/ 8/2018 19:21  8:23    1h57m02s   11°21'45"  163°27'54"   1.000   18.91355
10/15/2018 18:53  7:54    1h55m58s   11°15'58"  170°39'32"   1.000   18.88805
10/22/2018 18:25  7:25    1h54m53s   11°10'03"  177°50'08"   1.000   18.87738
10/29/2018 17:56  6:56    1h53m47s   11°04'06"  174°48'00"   1.000   18.88169

                                    Neptune

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

10/ 1/2018 17:41  5:15   23h04m20s   -7°02'11"  156°40'17"   1.000   29.01836
10/ 8/2018 17:13  4:46   23h03m43s   -7°06'00"  149°36'55"   1.000   29.07399
10/15/2018 16:45  4:18   23h03m09s   -7°09'26"  142°32'36"   1.000   29.14239
10/22/2018 16:17  3:50   23h02m39s   -7°12'26"  135°27'50"   1.000   29.22250
10/29/2018 15:49  3:22   23h02m14s   -7°14'56"  128°22'46"   1.000   29.31309

                                     Pluto

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

10/ 1/2018 14:36  0:54   19h21m13s  -22°05'08"  100°58'58"   1.000   33.44738
10/ 8/2018 14:09  0:27   19h21m16s  -22°05'41"   94°06'00"   1.000   33.57084
10/15/2018 13:42 23:55   19h21m26s  -22°06'03"   87°12'46"   1.000   33.69535
10/22/2018 13:14 23:28   19h21m42s  -22°06'11"   80°19'31"   1.000   33.81910
10/29/2018 12:47 23:01   19h22m04s  -22°06'08"   73°26'10"   1.000   33.94042


                         Planet Apsides Report for 2018

Mercury
  10/16/2018  Aphelion     Distance from Sun:   0.47 AU


       Planet Conjunction/Opposition Report for 10/ 1/2018 to 10/31/2018

Venus

  Date        Hour   Event

  10/26/2018  18     Inferior Conjunction               

Uranus

  Date        Hour   Event

  10/23/2018  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 10/ 1/2018 to 10/31/2018

Date          Hour    Apsis      Distance (km)    Diameter

10/ 5/2018    18      Perigee    366399           0.5436°
10/17/2018    14      Apogee     404215           0.4927°


                 Moon Nodes Report for 10/ 1/2018 to 10/31/2018

Date          Time     Node          Illuminated Fraction

10/ 3/2018    22:09    Ascending     0.33
10/17/2018     7:02    Descending    0.55
10/30/2018    22:45    Ascending     0.59


               Meteor Showers Report for 10/ 1/2018 to 10/31/2018

Date        Meteor Shower       ZHR  RA      DEC   Illum. Frac.  Longitude

10/13/2018  Piscids             ??    1h44m   14°  0.23          200°
10/22/2018  Orionids            25    6h24m   15°  0.96          209°


                  Twilight Report for 10/ 1/2018 to 10/31/2018

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

10/ 1/2018    6:58  18:50    5:35  20:13    6:03  19:46    6:30  19:18
10/ 8/2018    7:02  18:42    5:39  20:05    6:07  19:37    6:35  19:09
10/15/2018    7:07  18:34    5:43  19:57    6:11  19:29    6:39  19:02
10/22/2018    7:12  18:26    5:48  19:50    6:16  19:22    6:44  18:54
10/29/2018    7:17  18:20    5:52  19:44    6:20  19:16    6:48  18:48

Information for this section is from Astronomy Lab 2.03

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Last updated on Monday, October 1, 2018, 02:50 PM.