Baton Rouge Astronomical Society Forum

It is currently November 23rd, 2017, 3:20 pm

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 35 posts ]  Go to page Previous  1, 2, 3, 4  Next
Author Message
PostPosted: February 13th, 2016, 6:48 pm 
Offline

Joined: October 12th, 2009, 3:28 pm
Posts: 3788
Location: Baton Rouge, LA
Sunday 14 February and Monday 15 February
G1


Happy Valentine's from the Sun. Our parent star will send its love via a long-duration C8 flare from Active Region 2497. G1 conditions are expected tomorrow and Monday. Tomorrow's maximum UV Index for the HRPO area probably will be either 5 or 6.

More information:
http://www.swpc.noaa.gov/news/asymmetric-partial-halo-cme-11-feb-2016-cause-g1-minor-geomagnetic-storms-14-15-feb-2016


Top
 Profile  
 
PostPosted: February 15th, 2016, 2:28 pm 
Offline

Joined: October 12th, 2009, 3:28 pm
Posts: 3788
Location: Baton Rouge, LA
Wednesday 17 February
G1


G1 conditions are still predicted for some time today. G1 conditions are now predicted also for Wednesday. Due to the current storm I do not know if I'll be able to look at the Sun with the Sunspotter.


Top
 Profile  
 
PostPosted: February 16th, 2016, 2:07 pm 
Offline

Joined: October 12th, 2009, 3:28 pm
Posts: 3788
Location: Baton Rouge, LA
Tuesday 16 February and Wednesday 17 February
G1


G1 conditions were observed earlier this morning. In addition to the prediction for tomorrow, G1 condition are expected to continue for today (they were last observed at 11:17am CST. The warning is in effect until 4pm CST.

Amy at I looked at the Sun with the Sunspotter at about 12:57pm. AR 2501 was visible, but nothing else.

More information:
http://www.swpc.noaa.gov/news/g1-minor-geomagnetic-storm-levels-observed
http://www.swpc.noaa.gov/news/16-feb-g1-minor-geomagnetic-storming-continues


Top
 Profile  
 
PostPosted: February 17th, 2016, 4:41 pm 
Offline

Joined: October 12th, 2009, 3:28 pm
Posts: 3788
Location: Baton Rouge, LA
Thursday 18 February
G1


The geomagnetic storm warning has been extended until 10pm CST. The solar wind has heightened speeds at this time--500-600 km/s. At 3:16pm CST, while the UV index for this area was 2, I saw AR 2501 in the Sunspotter.

More information:
http://www.swpc.noaa.gov/news/g1-geomagnetic-storm-conditions-expected-18-feb

Today's Sun:
http://www.spaceweather.com/images2016/17feb16/hmi1898.gif


Top
 Profile  
 
PostPosted: February 18th, 2016, 1:05 pm 
Offline

Joined: October 12th, 2009, 3:28 pm
Posts: 3788
Location: Baton Rouge, LA
Thursday 18 February
G2


There were G2 conditions in the past twenty-four hours. This means, in part, that high-frequency radio propagation may have been degraded at higher latitudes.

NOAA is reworking the front page of its website.


Top
 Profile  
 
PostPosted: March 4th, 2016, 4:08 pm 
Offline

Joined: October 12th, 2009, 3:28 pm
Posts: 3788
Location: Baton Rouge, LA
Sunday 6 March
G1


A "minor" geomagnetic storming watch has been issued for UTC Sunday. A negative polarity coronal hole high speed stream is likely to cause an increase in solar wind speeds.

I looked at the Sun about ten minutes ago with the Sunspotter. I saw (in order) ARs 2513, 2510, 2512 and 2506. AR 2510 mainly consists of two barely-moderated-sized sunspots. A smattering of tiny sunspots borders AR 2512 on two sides; I did not see those.

Current view of Sun:
http://www.spaceweather.com/images2016/04mar16/hmi1898.gif

More information:
http://www.swpc.noaa.gov/news/g1-minor-watch-issued-6-march


Top
 Profile  
 
PostPosted: March 7th, 2016, 2:44 pm 
Offline

Joined: October 12th, 2009, 3:28 pm
Posts: 3788
Location: Baton Rouge, LA
Sunday 6 March
G3


Although no longer happening, "strong" geomagnetic storming was observed at ~6pm CST yesterday. AR 2513 still dominates visible views of the Sun. Deteriorating weather will make solar viewing unlikely in the next few days.

Current view of Sun:
http://www.spaceweather.com/images2016/07mar16/hmi1898.gif?PHPSESSID=hq9hkof1hqvarc3f0gfol9fsf2

More information:
http://www.swpc.noaa.gov/news/g3-strong-geomagnetic-storming-observed


Top
 Profile  
 
PostPosted: March 15th, 2016, 3:13 pm 
Offline

Joined: October 12th, 2009, 3:28 pm
Posts: 3788
Location: Baton Rouge, LA
Tuesday 15 March
G1


The G1 alert threshold was reached at 5:35pm CDT yesterday, and the warning was in effect until 11am CDT today. A G1 storm is also predicted for tomorrow.

More information:
http://www.swpc.noaa.gov/news/g1-minor-storm-warning-effect-until-151600-utc-151200-et


Top
 Profile  
 
PostPosted: March 31st, 2016, 12:14 pm 
Offline

Joined: October 12th, 2009, 3:28 pm
Posts: 3788
Location: Baton Rouge, LA
Saturday 2 April
G1


A disturbed interplanetary magnetic field and a coronal hole high speed stream will both hit Earth's geomagnetic field. This may results in G1 activity on Saturday (with a chance for an isolated period of G2).

More information:
http://www.swpc.noaa.gov/news/g1-minor-storm-watch-issued-2-april-2016

Current view of Sun:
http://www.spaceweather.com/images2016/31mar16/hmi1898.gif


Top
 Profile  
 
PostPosted: April 12th, 2016, 1:56 pm 
Offline

Joined: October 12th, 2009, 3:28 pm
Posts: 3788
Location: Baton Rouge, LA
Wednesday 13 April and Thursday 14 April
G1


Coronal hole high speed stream activity has prompted this current alert for tomorrow and Thursday. Though it's about the size of Earth, active region 2530 looks puny compared to the massive 2529.

More information:
http://www.swpc.noaa.gov/news/g1-minor-geomagnetic-storm-watch-issued-13-14-april

Current view of Sun:
[url]http://www.spaceweather.com/images2016/12apr16/hmi1898.gif[url/]


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 35 posts ]  Go to page Previous  1, 2, 3, 4  Next

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
cron
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group