MinorPlanet.info

SkyWatch: April 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 (Fri, 2021 Apr 16 08:09 UT)

RA    01 37 08.3
Dec   +10 06 30.7
X      0.899916
Y      0.407613
Z      0.176696
R      1.003603

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 Apr 15    03:43 04:18 04:51 05:19 18:37 19:05 19:38 20:13
2021 Apr 16    03:41 04:16 04:50 05:17 18:38 19:06 19:39 20:14
2021 Apr 17    03:39 04:15 04:48 05:16 18:39 19:07 19:41 20:16

Moon Information

Currently (Fri, 2021 Apr 16 08:09 UT)

RA          04 44 15.4
Dec         +22 23 57.2
Phase       0.155  (+ = waxing; - = waning)
Parallax    0.902 degrees
Diameter    29.49 arcminutes
Elong (RA)  47E

Local time for moon rise/transit/set (for UT date)
UT Date Rise Transit Set
2021 Apr 15 06:51 13:59 21:17
2021 Apr 16 07:21 14:44 22:16
2021 Apr 17 07:57 15:32 23:14

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  (Fri, 2021 Apr 16  08:09 UT) 
Local Rise/Transit/Set times are given at the end of each line
Sun         01 37 08.3   +10 06 30.7       
Opposition  13 37 08.3   -10 06 30.7   180E   18:33   23:57   05:20
Mercury     01 26 50.2   +08 01 11.8     3W   05:23   11:45   18:09
Venus       01 58 50.1   +11 11 40.7     5E   05:46   12:19   18:52
Mars        05 39 25.0   +24 49 27.2    59E   08:36   16:00   23:24
Jupiter     21 52 59.4   -13 35 31.2    60W   02:50   08:05   13:15
Saturn      20 58 59.2   -17 41 01.1    74W   02:10   07:10   12:04
Uranus      02 29 10.4   +14 17 13.1    13E   06:07   12:51   19:34
Neptune     23 31 03.3   -04 18 03.1    35W   03:56   09:42   15:21
Pluto       19 55 08.6   -22 13 00.4    90W   01:24   06:06   10:41 
Selected Positions for April 2021                Apr 01 2021                       Apr 16 2021                       Apr 30 2021
-------------------------------------------------------------------------------------------------------------
Sun         00 41 10.5  +04 25 45.9           01 36 12.7  +10 01 11.0           03 30 53.5  +19 01 53.0      
Opposition  12 41 10.5  -04 25 45.9  180E     13 36 12.7  -10 01 11.0  180E     15 30 53.5  -19 01 53.0  180E
Mercury     23 42 25.7  -04 26 15.5   17W     01 24 57.5  +07 47 42.1    4W     05 02 04.5  +25 10 22.5   22E
Venus       00 48 31.7  +03 50 12.9    2E     01 57 39.8  +11 04 49.0    5E     04 25 40.4  +21 55 57.8   13E
Mars        04 59 11.8  +24 11 27.6   65E     05 38 45.1  +24 49 08.6   59E     06 58 54.4  +24 09 49.6   48E
Jupiter     21 42 01.2  -14 29 00.4   48W     21 52 49.4  -13 36 20.7   60W     22 09 15.5  -12 14 53.1   85W
Saturn      20 54 45.6  -17 56 30.3   60W     20 58 55.6  -17 41 13.9   74W     21 03 18.8  -17 26 58.2  102W
Uranus      02 25 54.8  +14 01 04.7   28E     02 29 07.1  +14 16 56.8   14E     02 35 51.0  +14 49 22.7   14W
Neptune     23 29 06.5  -04 30 08.4   20W     23 31 01.5  -04 18 14.3   34W     23 34 04.0  -03 59 49.0   63W
Pluto       19 54 31.3  -22 12 39.4   75W     19 55 08.1  -22 12 59.2   89W     19 54 59.2  -22 17 25.0  119W

Local Date	AT Start	NT Start	CT Start	Sun Rise	Sun Set	CT End	NT End	AT End
2021 Apr 15	03:43	04:18	04:51	05:19	18:37	19:05	19:38	20:13
2021 Apr 16	03:41	04:16	04:50	05:17	18:38	19:06	19:39	20:14
2021 Apr 17	03:39	04:15	04:48	05:16	18:39	19:07	19:41	20:16

UT Date	Rise	Transit	Set
2021 Apr 15	06:51	13:59	21:17
2021 Apr 16	07:21	14:44	22:16
2021 Apr 17	07:57	15:32	23:14