Baton Rouge Astronomical Society Forum

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PostPosted: October 13th, 2016, 12:31 pm 
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Joined: October 12th, 2009, 3:28 pm
Posts: 3693
Location: Baton Rouge, LA
Thu 13 October 2016: G2
Fri 14 October 2016: G3
Sat 15 October 2016: G1


If I hadn't seen the predictions I wouldn't have believed them. Right now, as the Sun is headed toward a minimum of activity, suddenly there are Geomagnetic Storm warnings coming from the Space Weather Prediction Center. A predicted coronal mass ejection arrived in the vicinity of the Earth between ~4:21pm and 5:15pm CDT yesterday...
http://www.swpc.noaa.gov/news/geomagnetic-storming-began-13-oct-forecast

The Geomagnetic Storm Level 2 warning is valid through about 1pm CDT today...
http://www.swpc.noaa.gov/news/g2-moderate-geomagnetic-storm-warning-effect

There is a predicted Level 2 for the rest of this day, a Level 3 expected tomorrow and a Level 1 expected Saturday. Meanwhile there are three Active Regions on the solar surface--2599, 2600 and 2602.

Level 3 effects can include false alarms being triggered on some protection devices. Thankfully, the main area of impact probably will be latitudes much further north than Baton Rouge.

Specially-scheduled public solar viewing will take place during the following times...
*Thursday, 13 October from 12:30pm to 2:30pm at Highland Road Park Observatory
*Friday, 14 October from 9:30am to 12:30pm at Highland Road Park Observatory
*Saturday, 15 October from 12:30pm to 2pm at Farr Equestrian Center (during an already planned Open House)
These viewings have no admission fee and are open to all ages.

Farr Park Equestrian Center Fall Open House:
http://www.brec.org/assets/FarrPark/2016/FallOpenHouse_flier.jpg

Current view of the Sun:
http://www.spaceweather.com/images2016/13oct16/hmi1898.gif


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PostPosted: October 22nd, 2016, 1:47 pm 
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Joined: October 12th, 2009, 3:28 pm
Posts: 3693
Location: Baton Rouge, LA
Sat 22 October 2016: G1
Sun 23 October 2016: G1
Mon 24 October 2016: G2


I've said it before--this Solar Cycle will be leaving us with a few final surprises...
http://www.swpc.noaa.gov/news/g1-watch-22-and-23-october-utc-days

And a level G2 watch is in effect for Monday...
http://www.swpc.noaa.gov/news/g2-moderate-geomagnetic-storm-watch-issued-24-oct-2016

I used a solar viewer and saw nothing. Hayley, Amy, Roz, Apprentice Taylor and I also used the SunSpotter and 10" Dob (me between 1:01pm and 1:07pm CDT). With the Spotter I saw the largest component of AR 6203, and I saw the region's two largest components with the Dob. The only other active region on our side of the Sun (6302) had some plage but no spots, and at any rate is about to rotate out of view.

Current image of the Sun...
http://sdo.gsfc.nasa.gov/assets/img/latest/latest_1024_HMIIF.jpg


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PostPosted: December 7th, 2016, 5:15 pm 
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Joined: October 12th, 2009, 3:28 pm
Posts: 3693
Location: Baton Rouge, LA
Wed 7 December 2016: G1
Thu 8 December 2016: G1
Fri 9 December 2016: G1


There is now one active region (2615), but the relatively brief G1 watch of this week has been expanded through Friday. Earlier today I would have checked the visual accessibility of 2615, but there is seventy-five percent cloud cover forecast now and it's been that way most of the day.

Notice of expansion:
http://www.swpc.noaa.gov/news/g1-watch-expanded

Current image of the Sun:
http://www.spaceweather.com/images2016/07dec16/hmi1898.gif


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PostPosted: December 19th, 2016, 2:48 pm 
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Joined: October 12th, 2009, 3:28 pm
Posts: 3693
Location: Baton Rouge, LA
Wed 21 December 2016: G1
There is a sole active region at this time on the Earth-facing side of the Sun, but it has little visual activity and doesn't warrant any look except for maybe a glance with a solar viewer (which probably won't show anything).

More information:
http://www.swpc.noaa.gov/news/g1-minor-geomagnetic-storm-watch-issued-21-december

Current View of the Sun:
http://www.spaceweather.com/images2016/19dec16/hmi1898.gif


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PostPosted: December 21st, 2016, 1:45 pm 
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Joined: October 12th, 2009, 3:28 pm
Posts: 3693
Location: Baton Rouge, LA
Wed 21 December 2016: G2
Thu 22 December 2016: G1

G2 conditions began at 10:13am CST. There is a single Active Region facing us--AR 2620; it's a modest sunspot with what looks like eight little-to-tiny companions. This situation would usually warrant an observing alert to BRAS members, but the sky is overcast at this time so I couldn't attempt viewing myself.

More information:
http://www.swpc.noaa.gov/news/g2-moderate-geomagnetic-storm-progress

Current View of the Sun:
http://www.spaceweather.com/images2016/21dec16/hmi1898.gif


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