Monthly Observing Information
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.
NOTE: If you print this page out using your browser, be sure it is set to print black text or the background, or the white text will not print at all.
Baton Rouge Clear Sky Clock
Click on image for more info and details. This clock is for the Baton Rouge area only.
January
Moon Calendar
Sky charts
Saturn’s Ring Plane
Venus Phase
Sun and Moon Rise and Set
Begin End Date Moonrise Moonset Sunrise Sunset Twilight Twilight ------------ --------- --------- --------- --------- --------- --------- 1/1/2019 02:56 14:14 07:02 17:15 05:36 18:41 1/2/2019 03:54 14:53 07:02 17:16 05:37 18:41 1/3/2019 04:51 15:36 07:02 17:17 05:37 18:42 1/4/2019 05:46 16:22 07:02 17:17 05:37 18:43 1/5/2019 06:38 17:11 07:02 17:18 05:37 18:43 1/6/2019 07:27 18:02 07:03 17:19 05:38 18:44 1/7/2019 08:12 18:54 07:03 17:20 05:38 18:45 1/8/2019 08:52 19:48 07:03 17:21 05:38 18:45 1/9/2019 09:30 20:41 07:03 17:21 05:38 18:46 1/10/2019 10:04 21:34 07:03 17:22 05:38 18:47 1/11/2019 10:36 22:27 07:03 17:23 05:38 18:48 1/12/2019 11:08 23:21 07:03 17:24 05:38 18:48 1/13/2019 11:40 ------ 07:03 17:25 05:38 18:49 1/14/2019 12:13 00:15 07:03 17:26 05:38 18:50 1/15/2019 12:48 01:12 07:02 17:26 05:38 18:51 1/16/2019 13:28 02:11 07:02 17:27 05:38 18:51 1/17/2019 14:13 03:14 07:02 17:28 05:38 18:52 1/18/2019 15:05 04:18 07:02 17:29 05:38 18:53 1/19/2019 16:04 05:23 07:02 17:30 05:38 18:54 1/20/2019 17:10 06:26 07:01 17:31 05:38 18:54 1/21/2019 18:19 07:25 07:01 17:32 05:37 18:55 1/22/2019 19:30 08:17 07:01 17:33 05:37 18:56 1/23/2019 20:39 09:04 07:00 17:33 05:37 18:57 1/24/2019 21:45 09:46 07:00 17:34 05:37 18:57 1/25/2019 22:49 10:24 06:59 17:35 05:36 18:58 1/26/2019 23:51 11:01 06:59 17:36 05:36 18:59 1/27/2019 ------ 11:38 06:59 17:37 05:36 19:00 1/28/2019 00:51 12:15 06:58 17:38 05:35 19:00 1/29/2019 01:49 12:54 06:58 17:39 05:35 19:01 1/30/2019 02:46 13:35 06:57 17:40 05:35 19:02 1/31/2019 03:42 14:19 06:56 17:41 05:34 19:03 '------' means the event does not occur on this date. Object Right ascensio Declination Azimuth Altitude Earth distance Sun distance ------------ -------------- ------------- ------------- ------------- --------------- --------------- Sun 19h 51m 00.8s -20° 59' 15" 303° 57' 30" -74° 21' 24" 0 0 Mercury 19h 14m 39.7s -23° 48' 51" 326° 15' 39" -82° 07' 26" 211,107,257 69,505,628 Venus 16h 32m 09.7s -18° 36' 45" 78° 22' 51" -55° 28' 51" 112,238,694 107,597,494 Mars 00h 37m 29.2s +04° 03' 30" 275° 47' 30" -01° 49' 46" 208,023,709 220,227,177 Jupiter 16h 54m 34.6s -21° 57' 28" 79° 50' 45" -61° 39' 48" 905,036,294 799,665,648 Saturn 18h 57m 01.3s -22° 19' 12" 357° 37' 59" -81° 51' 49" 1,648,166,666 1,504,907,973 Uranus 01h 47m 12.4s +10° 29' 53" 272° 43' 59" +16° 21' 41" 2,960,083,093 2,971,066,346 Neptune 23h 04m 12.1s -07° 00' 44" 278° 24' 20" -27° 28' 59" 4,574,507,950 4,478,717,806 Pluto 19h 31m 20.7s -21° 54' 18" 314° 43' 46" -78° 17' 12" 5,191,423,074 5,044,773,686 Moon 03h 08m 24.7s +12° 19' 59" 263° 55' 20" +34° 42' 58" 381,470 0 Object Rise: Tran Set: Phase Constl Magnitud ------------ ----- ----- ----- ------- --------- -------- Sun 07:02 12:14 17:26 0.00% Sgr unknown Mercury 06:33 11:37 16:40 97.27% Sgr -0.7 Venus 03:38 08:55 14:13 55.21% Oph -4.4 Mars 10:50 17:01 23:13 88.27% Psc 0.7 Jupiter 04:13 09:20 14:27 99.64% Oph -1.8 Saturn 06:16 11:22 16:28 99.99% Sgr 0.5 Uranus 11:45 18:11 00:42 99.94% Psc 5.8 Neptune 09:44 15:29 21:14 99.98% Aqr 7.9 Pluto 06:48 11:55 17:03 100.00% Sgr 14.3 Moon 12:48 19:26 01:12 69.66% Ari unknown Moon Data --------- Distance (km): 381,469.8 Distance (miles): 237,034.9 True Equatorial: 03h 11m 15.2s +12° 42' 32" Angular diameter: 0° 31' 38" Total libration (l,b): 7° 32' 35" , 6° 22' 34" Optical libration: 7° 31' 57" , 6° 20' 32" Physical libration: 0° 00' 37" , 0° 02' 01" Position Angle: 14° 57' 19" Pos. angle (bright limb): 66° 50' 42" Phase angle: 14° 57' 19" Age: 10.16 Mars Data --------- Declination of earth: 25° 28' 21" Declination of Sun: 14° 08' 06" Longitude of the central Meridian:300° 00' 53" Pos. Angle: 328° 29' 02" Jupiter Data ----------------- Declination of earth: 2° 49' 46" Declination of Sun: 2° 55' 38" Longitude of the central Meridian:269° 59' 49" Pos. Angle: 6° 10' 05" Saturn Data --------- Declination of earth: 25° 07' 50" Declination of Sun: 25° 20' 01" Longitude of the central Meridian: 0° 00' 00" Pos. Angle: 6° 17' 31" Name Month/Day RA Decl Hourly Rate ----------------------------- ------------ ---------- ---------- ----------- Quadrantids 01/03 15.3 48.5 80 Coma Berenicids 01/10 11.7 25.0 8 Delta Cancrids 01/16 8.4 20.0 7
Information and images in this section from TheSkyX Student Edition
Solar System Information
Lunar Eclipse Report for 2019
Lunar eclipse on 1/20/2019
Moon rise: 17:10
Moon set: 6:26
Magnitude: 1.19
Partial phase begins: 21:34
Total phase begins: 22:42
Time of maximum eclipse: 23:12
Total phase ends: 23:42
Partial phase ends: 0:50
Solar Eclipse Report for 2019
Solar eclipse on 1/ 5/2019
Sun rise: 7:02
Sun set: 17:18
Time of maximum eclipse: 19:44
Eclipse is partial, maximum magnitude = 0.72
Eclipse is visible in the northern hemisphere
Planet View Info Report for 1/ 1/2019 to 1/31/2019
Mercury
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
1/ 1/2019 5:53 16:03 17h33m16s -23°10'11" 16°23'49" 0.893 1.29617
1/ 8/2019 6:14 16:19 18h18m50s -24°03'56" 13°06'42" 0.938 1.36466
1/15/2019 6:33 16:40 19h06m17s -23°56'46" 9°30'46" 0.969 1.40650
1/22/2019 6:51 17:05 19h54m51s -22°42'15" 5°38'37" 0.988 1.42269
1/29/2019 7:05 17:34 20h43m56s -20°16'10" 2°12'52" 0.998 1.41157
Venus
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
1/ 1/2019 3:26 14:17 15h27m59s -15°18'38" 46°51'40" 0.474 0.63470
1/ 8/2019 3:31 14:14 15h56m32s -16°54'37" 46°56'49" 0.512 0.68789
1/15/2019 3:37 14:13 16h26m44s -18°22'36" 46°43'10" 0.546 0.74105
1/22/2019 3:45 14:14 16h58m24s -19°36'44" 46°14'24" 0.579 0.79400
1/29/2019 3:53 14:17 17h31m19s -20°32'03" 45°33'25" 0.609 0.84653
Mars
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
1/ 1/2019 11:20 23:24 0h00m15s -0°17'53" 79°40'38" 0.873 1.26105
1/ 8/2019 11:05 23:19 0h17m18s 1°42'57" 77°15'15" 0.877 1.32032
1/15/2019 10:50 23:13 0h34m29s 3°42'53" 74°51'08" 0.882 1.38012
1/22/2019 10:35 23:07 0h51m48s 5°41'06" 72°28'01" 0.887 1.44027
1/29/2019 10:20 23:02 1h09m15s 7°36'50" 70°05'31" 0.891 1.50068
Jupiter
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
1/ 1/2019 4:54 15:11 16h41m23s -21°34'20" 28°29'27" 0.998 6.19341
1/ 8/2019 4:33 14:49 16h47m34s -21°45'43" 34°10'39" 0.997 6.13267
1/15/2019 4:12 14:27 16h53m34s -21°55'50" 39°54'35" 0.997 6.06279
1/22/2019 3:51 14:05 16h59m20s -22°04'42" 45°41'25" 0.996 5.98445
1/29/2019 3:29 13:42 17h04m49s -22°12'23" 51°31'40" 0.995 5.89834
Saturn
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
1/ 1/2019 7:04 17:16 18h49m02s -22°28'01" 1°10'02" 1.000 11.06185
1/ 8/2019 6:40 16:52 18h52m36s -22°24'10" 5°16'18" 1.000 11.05723
1/15/2019 6:15 16:28 18h56m08s -22°20'01" 11°34'22" 1.000 11.03978
1/22/2019 5:51 16:04 18h59m37s -22°15'36" 17°53'09" 1.000 11.00978
1/29/2019 5:27 15:40 19h03m01s -22°11'01" 24°12'38" 1.000 10.96761
Uranus
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
1/ 1/2019 12:40 1:37 1h47m08s 10°28'49" 108°20'55" 0.999 19.53242
1/ 8/2019 12:12 1:09 1h47m04s 10°28'44" 101°11'52" 0.999 19.64869
1/15/2019 11:45 0:42 1h47m10s 10°29'34" 94°05'36" 0.999 19.76784
1/22/2019 11:17 0:15 1h47m26s 10°31'18" 87°02'25" 0.999 19.88797
1/29/2019 10:50 23:44 1h47m51s 10°33'55" 80°02'14" 0.999 20.00736
Neptune
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
1/ 1/2019 10:38 22:07 23h02m52s -7°09'19" 63°50'01" 1.000 30.35959
1/ 8/2019 10:11 21:41 23h03m27s -7°05'36" 56°51'13" 1.000 30.46522
1/15/2019 9:44 21:14 23h04m06s -7°01'22" 49°53'58" 1.000 30.56286
1/22/2019 9:17 20:47 23h04m50s -6°56'40" 42°58'30" 1.000 30.65114
1/29/2019 8:50 20:21 23h05m38s -6°51'35" 36°04'38" 1.000 30.72891
Pluto
Date Rise Set RA Dec Elongation Ill Fr DIST(AU)
1/ 1/2019 7:42 17:57 19h29m09s -21°57'34" 10°20'15" 1.000 34.67919
1/ 8/2019 7:16 17:30 19h30m09s -21°56'03" 3°26'14" 1.000 34.69838
1/15/2019 6:49 17:04 19h31m10s -21°54'31" 3°27'51" 1.000 34.70314
1/22/2019 6:22 16:37 19h32m11s -21°52'57" 10°21'10" 1.000 34.69356
1/29/2019 5:56 16:11 19h33m10s -21°51'25" 17°14'18" 1.000 34.66989
Planet Apsides Report for 2019
Earth
1/ 3/2019 Perihelion Distance from Sun: 0.98 AU
Mercury
1/12/2019 Aphelion Distance from Sun: 0.47 AU
Planet Conjunction/Opposition Report for 1/ 1/2019 to 1/31/2019
Mercury
Date Hour Event
1/29/2019 21 Superior Conjunction
Saturn
Date Hour Event
1/ 1/2019 21 Conjunction
Pluto
Date Hour Event
1/11/2019 6 Conjunction (Occultation)
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/ 1/2019 to 1/31/2019
Date Hour Apsis Distance (km) Diameter
1/ 8/2019 22 Apogee 406112 0.4904°
1/21/2019 14 Perigee 357353 0.5573°
Moon Nodes Report for 1/ 1/2019 to 1/31/2019
Date Time Node Illuminated Fraction
1/ 6/2019 18:07 Descending 0.00
1/20/2019 16:48 Ascending 1.00
Meteor Showers Report for 1/ 1/2019 to 1/31/2019
Date Meteor Shower ZHR RA DEC Illum. Frac. Longitude
1/ 3/2019 Quadrantids 80 15h28m 50° 0.05 283°
Twilight Report for 1/ 1/2019 to 1/31/2019
Date Sun Astronomical Nautical Civil
Rise Set Begin End Begin End Begin End
1/ 1/2019 7:02 17:15 5:32 18:45 6:01 18:16 6:31 17:46
1/ 8/2019 7:03 17:20 5:33 18:50 6:03 18:20 6:32 17:51
1/15/2019 7:02 17:26 5:34 18:55 6:03 18:26 6:32 17:56
1/22/2019 7:01 17:32 5:33 19:00 6:02 18:31 6:31 18:02
1/29/2019 6:58 17:39 5:31 19:05 5:59 18:37 6:28 18:08
Information for this section is from Astronomy Lab 2.03
Last updated on Wednesday, January 2, 2019, 01:26 PM.