2016 Great Red Spot Viewing Times

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Christopher K.
Posts: 4797
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

2016 Great Red Spot Viewing Times

Post by Christopher K. » December 31st, 2015, 9:04 am

As usual, I'll attempt to adapt the Sky & Telescope predictions to Baton Rouge viewing times. The guidelines...
*The list is limited to times when Jupiter is at least fifteen degrees above the horizon.
*The list is limited to times when the Sun is at least eighteen degrees below the horizon.
*Although S&T states the GRS is visible for fifty minutes before and after transit, I limit it to forty-five minutes to be conservative. (In other words, a maximum viewing session of ninety minutes.)
*Given the above, only GRS viewing opportunities that are at least thirty minutes long are included.

January 2016
2 January = 2:59am to 4:29am
4 January = 5:36am to 6:07am
5 January = 12:29am to 1:59am
7 January = 2:07am to 3:37am
9 January = 3:45am to 5:15am / 11:36pm to 11:59pm
10 January = 12:00am to 1:06am
12 January = 1:14am to 2:44am
14 January = 2:52am to 4:22am / 11:06pm to 11:59pm
15 January = 12:00am to 12:14am
16 January = 4:30am to 5:37am
17 January = 12:22am to 1:52am
19 January = 2:00am to 3:30am / 10:46pm to 11:21pm
21 January = 3:38am to 5:08am / 11:29pm to 11:59pm
22 January = 12:00am to 12:59am
24 January = 1:07am to 2:37am
26 January = 2:45am to 4:15am / 10:36pm to 11:59pm
27 January = 12:00am to 12:06am
28 January = 4:23am to 5:34am
29 January = 12:14am to 1:44am
31 January = 1:52am to 3:22am
All times are Standard. These times assume the Great Red Spot will be centered at System II longitude 230˚. Jupiter remains in Leo throughout the month of January.

Christopher K.
Posts: 4797
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2016 Great Red Spot Viewing Times

Post by Christopher K. » February 4th, 2016, 2:40 pm

February 2016
1 February = 3:30am to 5:00am
2 February = 11:21pm to 11:59pm
3 February = 12:00am to 12:51am
5 February = 12:59am to 2:29am / 9:34pm to 10:20pm
7 February = 2:37am to 4:07am / 10:28pm to 11:58pm
9 February = 4:15am to 5:28am
10 February = 12:06am to 1:36am
12 February = 1:44am to 3:14am / 9:35pm to 11:05pm
14 February = 3:22am to 4:52am
15 February = 11:13pm to 11:59pm
16 February = 12:00am to 12:43am
17 February = 12:51am to 2:21am / 8:42pm to 10:12pm
19 February = 2:29am to 3:59am / 10:20pm to 11:50pm
21 February = 4:07am to 5:19am / 11:52pm to 11:59pm
22 February = 12:00am to 1:22am / 8:18pm to 9:19pm
24 February = 1:36am to 3:06am / 9:27pm to 10:57pm
26 February = 3:14am to 4:44am / 11:05am to 11:59pm
27 February = 12:00am to 12:35am / 7:56pm to 8:26pm
29 February = 12:43am to 2:13am / 8:47pm to 10:04pm

My apologies for getting this out late. As can be seen, the GRS will be available for view at the Highland Road Park Observatory during the first two Fridays and the last Saturday of the month.

Christopher K.
Posts: 4797
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2016 Great Red Spot Viewing Times

Post by Christopher K. » March 11th, 2016, 6:11 pm

March 2016
2 March = 2:21am to 3:51am / 10:12pm to 11:42pm
4 March = 3:59am to 5:29am / 11:50pm to 11:59pm
5 March = 12:00am to 1:20am / 7:41pm to 9:11pm
7 March = 1:28am to 2:58am / 9:19pm to 10:49pm
9 March = 3:06am to 4:36am / 10:57pm to 11:59pm
10 March = 12:00am to 12:27am / 7:30pm to 8:18pm
12 March = 12:35am to 2:05am / 8:26pm to 9:56pm
Times above are Standard. Times below are Daylight.
14 March = 3:13am to 4:43am / 11:04pm to 11:59pm
15 March = 12:00am to 12:34am
16 March = 4:51am to 5:47am
17 March = 12:42am to 2:12am / 8:35pm to 10:03pm
19 March = 2:20am to 3:50am / 10:11pm to 11:41pm
21 March = 3:58am to 5:25am / 11:49am to 11:59pm
22 March = 12:00am to 1:19am / 8:38pm to 9:10pm
24 March = 1:27am to 2:57am / 9:18pm to 10:48pm
26 March = 3:05am to 4:35am / 10:56pm to 11:59pm
27 March = 12:00am to 12:26am
29 March = 12:35am to 2:05am / 8:43pm to 9:56pm
31 March = 2:13am to 3:43am

As can be seen, there is a nice GRS session coinciding with HRPO viewing the night of the 12th--and then we'll have to wait until April for a HRPO public session!

Christopher K.
Posts: 4797
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2016 Great Red Spot Viewing Times

Post by Christopher K. » April 4th, 2016, 3:52 pm

March 2016
31 March = 10:11pm to 11:41pm

April 2016
2 April = 3:57am to 4:34am / 11:49pm to 11:59pm
3 April = 12:00am to 1:19am
5 April = 1:27am to 2:57am / 9:18am to 10:48pm
7 April = 3:05am to 3:59am / 10:56pm to 11:59pm
8 April = 12:00am to 12:26am
10 April = 12:35am to 2:05am / 8:52pm to 9:56pm
12 April = 2:13am to 3:43am / 10:04pm to 11:34pm
14 April = 11:43pm to 11:59pm
15 April = 12:00am to 1:13am
17 April = 1:21am to 2:51am / 9:12pm to 10:42pm
19 April = 10:51pm to 11:59pm
20 April = 12:00am to 12:21am
22 April = 12:29am to 1:59am / 9:03pm to 9:50pm
24 April = 2:07am to 3:03am / 9:59pm to 11:29pm
26 April = 11:37pm to 11:59pm
27 April = 12:00am to 1:07am
29 April = 1:16am to 2:43am / 9:07pm to 10:37pm

The GRS should be available for view by HRPO patrons during the last hours of Evening Sky Viewing on Friday the 22nd and Friday the 29th. One will also notice that there are no 7pm-hour viewing times due to Daylight Time.

Until 11 April Jupiter will remain less than a quarter-degree from the F-class, magnitude 4.6 double star Chi Leonis. (This Thursday, the 7th, the gas giant will be fewer than eight arcminutes from the star!) I don't know how easy it is to split Chi Leonis's components.

On 17 April the waxing gibbous Moon will visit Jupiter.

Christopher K.
Posts: 4797
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2016 Great Red Spot Viewing Times

Post by Christopher K. » May 10th, 2016, 7:19 pm

The Great Red Spot will be visible from Baton Rouge tomorrow morning from 1:12am to 1:55am CDT.

Christopher K.
Posts: 4797
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2016 Great Red Spot Viewing Times

Post by Christopher K. » May 23rd, 2016, 8:11 pm

April 2016
1 May = 10:46pm to 11:59pm
2 May = 12:00am to 12:16am
4 May = 12:24am to 1:54am / 9:14pm to 9:46pm
6 May = 9:54pm to 11:24pm
8 May = 11:33pm to 11:59pm
9 May = 12:00am to 1:03am
11 May = 1:12am to 1:55am / 9:20pm to 10:33pm
13 May = 10:42pm to 11:59pm
14 May = 12:00am to 12:12am
16 May = 12:20am to 1:35am

Christopher K.
Posts: 4797
Joined: October 12th, 2009, 3:28 pm
Location: Baton Rouge, LA

Re: 2016 Great Red Spot Viewing Times

Post by Christopher K. » August 2nd, 2016, 4:56 pm

This is an overdue announcement, but the original source of my GRS calculations (if you want to call them that) is no more. I don't know why S&T stopped posting the GRS times. Perhaps it is connected to the GRS currently shrinking size.

At any rate, I am searching for another reliable source. Thanks for the patience.

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