MinorPlanet.info

SkyWatch: September 2021

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 (Mon, 2021 Sep 27 07:12 UT)

RA    12 14 53.8
Dec   -01 36 45.5
X     -0.999730
Y     -0.065866
Z     -0.028548
R      1.002304

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
2021 Sep 26    04:23 04:54 05:25 05:52 17:47 18:13 18:44 19:15
2021 Sep 27    04:24 04:55 05:26 05:53 17:45 18:12 18:42 19:14
2021 Sep 28    04:25 04:56 05:27 05:54 17:43 18:10 18:41 19:12

Moon Information

Currently (Mon, 2021 Sep 27 07:12 UT)

RA          04 54 28.4
Dec         +23 37 25.3
Phase       -0.665  (+ = waxing; - = waning)
Parallax    0.903 degrees
Diameter    29.53 arcminutes
Elong (RA)  110W

Local time for moon rise/transit/set (for UT date)
UT Date Rise Transit Set
2021 Sep 26 20:26 03:49 11:31
2021 Sep 27 21:01 04:36 12:29
2021 Sep 28 21:41 05:26 13:22

Phases for 2021
       New                    First                  Full                   Last
---------------------------------------------------------------------------------------
Dec 14 2020  16:17     Dec 21 2020  23:42     Dec 30 2020  03:29     Jan 06 2021  09:38     
Jan 13 2021  05:01     Jan 20 2021  21:02     Jan 28 2021  19:17     Feb 04 2021  17:38     
Feb 11 2021  19:06     Feb 19 2021  18:48     Feb 27 2021  08:18     Mar 06 2021  01:31     
Mar 13 2021  10:21     Mar 21 2021  14:41     Mar 28 2021  18:48     Apr 04 2021  10:03     
Apr 12 2021  02:31     Apr 20 2021  07:00     Apr 27 2021  03:32     May 03 2021  19:51     
May 11 2021  19:00     May 19 2021  19:13     May 26 2021  11:14     Jun 02 2021  07:25     
Jun 10 2021  10:52     Jun 18 2021  03:55     Jun 24 2021  18:39     Jul 01 2021  21:11     
Jul 10 2021  01:17     Jul 17 2021  10:12     Jul 24 2021  02:37     Jul 31 2021  13:17     
Aug 08 2021  13:50     Aug 15 2021  15:20     Aug 22 2021  12:02     Aug 30 2021  07:14     
Sep 07 2021  00:52     Sep 13 2021  20:40     Sep 20 2021  23:55     Sep 29 2021  01:58     
Oct 06 2021  11:06     Oct 13 2021  03:26     Oct 20 2021  14:57     Oct 28 2021  20:06     
Nov 04 2021  21:15     Nov 11 2021  12:47     Nov 19 2021  08:58     Nov 27 2021  12:28     
Dec 04 2021  07:44     Dec 11 2021  01:36     Dec 19 2021  04:36     Dec 27 2021  02:24     
Jan 02 2022  18:34     Jan 09 2022  18:12     Jan 17 2022  23:49     Jan 25 2022  13:42     
Feb 01 2022  05:47     Feb 08 2022  13:51     Feb 16 2022  16:58     Feb 23 2022  22:33     
Planet Information
Currently  (Mon, 2021 Sep 27  07:12 UT) 
Local Rise/Transit/Set times are given at the end of each line
Sun         12 14 53.8   -01 36 45.5       
Opposition  00 14 53.8   +01 36 45.5   180E   17:46   23:48   05:51
Mercury     13 27 40.3   -13 14 16.3    21E   07:47   12:59   18:11
Venus       15 01 19.7   -19 09 27.3    44E   09:44   14:35   19:24
Mars        12 29 16.5   -02 21 51.3     4E   06:13   12:02   17:49
Jupiter     21 42 00.7   -15 02 57.8   139E   15:54   21:03   02:04
Saturn      20 37 23.5   -19 22 43.8   123E   15:06   19:59   00:45
Uranus      02 46 21.0   +15 36 31.4   140W   19:31   02:19   09:07
Neptune     23 29 15.7   -04 35 32.3   167E   17:06   22:51   04:27
Pluto       19 44 55.8   -22 55 27.4   110E   14:27   19:07   23:39 
Selected Positions for September 2021                Sep 01 2021                       Sep 16 2021                       Sep 30 2021
-------------------------------------------------------------------------------------------------------------
Sun         10 40 29.2  +08 23 07.0           11 34 30.8  +02 45 15.9           13 23 25.8  -08 46 26.6      
Opposition  22 40 29.2  -08 23 07.0  180E     23 34 30.8  -02 45 15.9  180E     01 23 25.8  +08 46 26.6  180E
Mercury     12 06 56.2  -01 33 52.3   24E     13 07 59.8  -10 18 26.8   27E     12 38 49.3  -03 57 02.0   12W
Venus       13 07 10.0  -07 19 31.2   40E     14 11 37.8  -14 29 33.9   43E     16 26 48.6  -24 50 39.7   46E
Mars        11 27 15.9  +04 31 12.6   12E     12 02 34.6  +00 36 15.8    7E     13 14 41.1  -07 15 46.3    3W
Jupiter     21 52 15.9  -14 11 13.1  167E     21 45 41.2  -14 45 05.7  151E     21 39 09.2  -15 15 05.4  119E
Saturn      20 41 51.7  -19 05 26.7  149E     20 38 50.1  -19 17 14.4  134E     20 36 49.3  -19 24 50.1  104E
Uranus      02 48 24.5  +15 46 00.5  114W     02 47 28.3  +15 41 39.3  129W     02 43 50.7  +15 25 07.1  159W
Neptune     23 31 53.9  -04 18 21.9  167W     23 30 23.5  -04 28 15.0  178E     23 27 32.5  -04 46 24.9  148E
Pluto       19 46 03.7  -22 51 19.4  136E     19 45 15.7  -22 54 06.6  121E     19 44 56.5  -22 56 12.3   91E

Local Date	AT Start	NT Start	CT Start	Sun Rise	Sun Set	CT End	NT End	AT End
2021 Sep 26	04:23	04:54	05:25	05:52	17:47	18:13	18:44	19:15
2021 Sep 27	04:24	04:55	05:26	05:53	17:45	18:12	18:42	19:14
2021 Sep 28	04:25	04:56	05:27	05:54	17:43	18:10	18:41	19:12

UT Date	Rise	Transit	Set
2021 Sep 26	20:26	03:49	11:31
2021 Sep 27	21:01	04:36	12:29
2021 Sep 28	21:41	05:26	13:22