MinorPlanet.info

SkyWatch: August 2017

Dates and times are Universal Time
Positions are geocentric J2000
Pluto's position is astrometric, i.e., it accounts for the approx. 6 hour light-time
Elongations are in degrees
Calculations by Brian D. Warner

Location Information for Rise/Set times
Enter Longitude and Latitude in degrees (e.g., 39.1003).
Western/Southern Hemisphere = negative
Enter UTOffset in hours (e.g., 9.5)

Examples: Colo Spgs, CO: –105 +39 -7.0; Adelaide, Australia = +138 –34 +9.5)

Sun Information

Currently (Wed, 2017 Aug 16 21:49 UT)

RA    09 44 30.8
Dec   +13 34 58.0
X     -0.818736
Y      0.546498
Z      0.236910
R      1.012480

Local time for sunrise/sunset/twilight
Civil Twilight (CT): Sun 6º below horizon
Nautical Twilight (NT): Sun 12º below horizon
Astronomical Twilight (AT): Sun 18º below horizon

Local
Date AT
Start NT
Start CT
Start Sun
Rise Sun
Set CT
End NT
End AT
End
2017 Aug 15    03:35 04:11 04:45 05:14 18:51 19:20 19:54 20:30
2017 Aug 16    03:36 04:12 04:46 05:15 18:50 19:18 19:52 20:28
2017 Aug 17    03:38 04:14 04:47 05:16 18:49 19:17 19:51 20:27

Moon Information

Currently (Wed, 2017 Aug 16 21:49 UT)

RA          05 13 28.2
Dec         +18 11 17.2
Phase       -0.291  (+ = waxing; - = waning)
Parallax    0.994 degrees
Diameter    32.52 arcminutes
Elong (RA)  68W

Local time for moon rise/transit/set (for UT date)
UT Date Rise Transit Set
2017 Aug 15 21:34 05:22 12:15
2017 Aug 16 22:14 06:16 13:23
2017 Aug 17 00:00 07:12 14:30

Phases for 2017
       New                    First                  Full                   Last
---------------------------------------------------------------------------------------
Nov 29 2016  12:19     Dec 07 2016  09:04     Dec 14 2016  00:06     Dec 21 2016  01:57     
Dec 29 2016  06:54     Jan 05 2017  19:48     Jan 12 2017  11:35     Jan 19 2017  22:14     
Jan 28 2017  00:08     Feb 04 2017  04:20     Feb 11 2017  00:33     Feb 18 2017  19:34     
Feb 26 2017  14:59     Mar 05 2017  11:33     Mar 12 2017  14:54     Mar 20 2017  15:59     
Mar 28 2017  02:58     Apr 03 2017  18:40     Apr 11 2017  06:09     Apr 19 2017  09:57     
Apr 26 2017  12:16     May 03 2017  02:48     May 10 2017  21:43     May 19 2017  00:33     
May 25 2017  19:45     Jun 01 2017  12:43     Jun 09 2017  13:10     Jun 17 2017  11:33     
Jun 24 2017  02:31     Jul 01 2017  00:52     Jul 09 2017  04:07     Jul 16 2017  19:26     
Jul 23 2017  09:46     Jul 30 2017  15:24     Aug 07 2017  18:11     Aug 15 2017  01:16     
Aug 21 2017  18:30     Aug 29 2017  08:14     Sep 06 2017  07:03     Sep 13 2017  06:26     
Sep 20 2017  05:30     Sep 28 2017  02:54     Oct 05 2017  18:40     Oct 12 2017  12:26     
Oct 19 2017  19:12     Oct 27 2017  22:23     Nov 04 2017  05:23     Nov 10 2017  20:37     
Nov 18 2017  11:42     Nov 26 2017  17:04     Dec 03 2017  15:47     Dec 10 2017  07:52     
Dec 18 2017  06:31     Dec 26 2017  09:21     Jan 02 2018  02:25     Jan 08 2018  22:26     
Jan 17 2018  02:18     Jan 24 2018  22:21     Jan 31 2018  13:27     Feb 07 2018  15:55     
Planet Information
Currently  (Wed, 2017 Aug 16  21:49 UT) 
Local Rise/Transit/Set times are given at the end of each line
Sun         09 44 30.8   +13 34 58.0       
Opposition  21 44 30.8   -13 34 58.0   180E   18:47   00:01   05:25
Mercury     10 42 15.1   +03 24 49.8    18E   06:57   13:04   19:11
Venus       07 20 02.4   +21 25 14.6    35W   02:24   09:36   16:48
Mars        09 20 14.3   +16 45 16.3     7W   04:45   11:39   18:32
Jupiter     13 12 16.6   -06 25 49.9    55E   09:57   15:32   21:08
Saturn      17 21 10.4   -21 55 45.8   117E   14:49   19:33   00:09
Uranus      01 45 39.7   +10 17 04.6   116W   20:37   04:08   10:38
Neptune     22 59 14.4   -07 29 33.4   161W   19:34   01:10   06:37
Pluto       19 13 28.6   -21 39 29.0   143E   16:40   21:25   02:02 
Selected Positions for August 2017                Aug 01 2017                       Aug 16 2017                       Aug 31 2017
-------------------------------------------------------------------------------------------------------------
Sun         08 44 33.7  +18 04 50.8           09 41 42.6  +13 49 11.6           11 34 35.6  +02 44 45.2      
Opposition  20 44 33.7  -18 04 50.8  180E     21 41 42.6  -13 49 11.6  180E     23 34 35.6  -02 44 45.2  180E
Mercury     10 27 54.4  +07 52 26.0   27E     10 43 14.1  +03 24 23.4   18E     10 32 21.3  +10 22 43.3   17W
Venus       06 00 52.0  +21 51 45.1   39W     07 16 15.1  +21 29 51.2   35W     09 49 31.3  +13 58 22.9   28W
Mars        08 39 27.2  +19 33 23.2    2W     09 18 19.8  +16 53 56.2    6W     10 34 44.6  +10 13 05.3   17W
Jupiter     13 03 36.7  -05 29 24.5   68E     13 11 49.6  -06 22 57.1   56E     13 32 53.3  -08 33 23.6   32E
Saturn      17 22 57.1  -21 54 33.4  133E     17 21 13.3  -21 55 40.2  118E     17 22 29.8  -22 02 35.3   88E
Uranus      01 45 56.1  +10 18 59.4  100W     01 45 41.5  +10 17 15.8  115W     01 43 09.7  +10 02 24.3  146W
Neptune     23 00 37.0  -07 20 37.1  145W     22 59 18.6  -07 29 06.1  160W     22 56 11.9  -07 48 42.1  169E
Pluto       19 14 50.6  -21 35 18.7  159E     19 13 31.9  -21 39 17.2  144E     19 11 51.6  -21 45 44.1  114E

Local Date	AT Start	NT Start	CT Start	Sun Rise	Sun Set	CT End	NT End	AT End
2017 Aug 15	03:35	04:11	04:45	05:14	18:51	19:20	19:54	20:30
2017 Aug 16	03:36	04:12	04:46	05:15	18:50	19:18	19:52	20:28
2017 Aug 17	03:38	04:14	04:47	05:16	18:49	19:17	19:51	20:27

UT Date	Rise	Transit	Set
2017 Aug 15	21:34	05:22	12:15
2017 Aug 16	22:14	06:16	13:23
2017 Aug 17	00:00	07:12	14:30