Sunspot AR2673
Sep 4, 2017 18:14:04 #
barbie.lewis
Loc: Livingston, Texas
AR2673 is the lower sunspot in my photo. It pretty much appeared out of nowhere over the past 24 hours or so and has tossed four M class solar flares straight at the earth over the past eight hours.
The group above it is AR2674 which also appears in some of my eclipse pictures.
(Very heavy cloudcover, Canon SX60hs, Marumi ND 100000 filter, manual 1/800th at f/6.5, ~1200mm equivalent).
The group above it is AR2674 which also appears in some of my eclipse pictures.
(Very heavy cloudcover, Canon SX60hs, Marumi ND 100000 filter, manual 1/800th at f/6.5, ~1200mm equivalent).
Sep 4, 2017 18:14:58 #
Sep 5, 2017 14:07:11 #
jerryc41 wrote:
Nice!
Interesting! How are sun spots numbered? You said this one just appeared in the last 24 hours and AR2674 was visible in the eclipse. I would expect a higher number (> 2674) rather than a lower one.
Sep 6, 2017 03:11:00 #
barbie.lewis
Loc: Livingston, Texas
It was my fault. Sunspots are numbered sequentially, so AR 2674 did develop after AR2673. My mistake was that the group I photographed during the Eclipse was AR 2671. Since AR 2673 looked very similar I assumed it was the same group and wrote it up that way.
AR2673 and AR2674 first appeared visibly on August 29th. AR2673 was originally quite small. It suddenly expanded bhetween September 3rd and September 4th. It sent it's first M-1 solar flare at us on 9-4-2017 at 1552 UTC (about 8:52 a.m. Pacific time). Between then and 0122 UTC (about 6:22 p.m. Pacific time) we experienced three more M-1's and two M-3's.
AR2673 and AR2674 first appeared visibly on August 29th. AR2673 was originally quite small. It suddenly expanded bhetween September 3rd and September 4th. It sent it's first M-1 solar flare at us on 9-4-2017 at 1552 UTC (about 8:52 a.m. Pacific time). Between then and 0122 UTC (about 6:22 p.m. Pacific time) we experienced three more M-1's and two M-3's.
Sep 6, 2017 03:11:01 #
barbie.lewis
Loc: Livingston, Texas
It was my fault. Sunspots are numbered sequentially, so AR 2674 did appear after AR2673. My mistake was that the group I photographed during the Eclipse was AR 2671. Since AR 2673 looked very similar I assumed it was the same group and wrote it up that way.
AR2673 and AR2674 first appeared visibly on August 29th. AR2673 was originally quite small. It suddenly expanded bhetween September 3rd and September 4th. It sent it's first M-1 solar flare at us on 9-4-2017 at 1552 UTC (about 8:52 a.m. Pacific time). Between then and 0122 UTC (about 6:22 p.m. Pacific time) we experienced three more M-1's and two M-3's.
AR2673 and AR2674 first appeared visibly on August 29th. AR2673 was originally quite small. It suddenly expanded bhetween September 3rd and September 4th. It sent it's first M-1 solar flare at us on 9-4-2017 at 1552 UTC (about 8:52 a.m. Pacific time). Between then and 0122 UTC (about 6:22 p.m. Pacific time) we experienced three more M-1's and two M-3's.
Sep 6, 2017 12:05:12 #
Sep 6, 2017 13:36:52 #
barbie.lewis
Loc: Livingston, Texas
YOU BET! It is very, very nice to have atmosphere and a magnetic field. Will be very handy today and tomorrow!
This morning sunspot AR7623 unleashed a major X9.3 (really big!) solar flare straight at us and a G3 coronal mass ejection (also big!) is going to hit us today and tomorrow.
GPS directions may prove unreliable for two days and radio communications, including cell phones, may be interrupted.
(The wearing of aluminum foil hats is optional).
This morning sunspot AR7623 unleashed a major X9.3 (really big!) solar flare straight at us and a G3 coronal mass ejection (also big!) is going to hit us today and tomorrow.
GPS directions may prove unreliable for two days and radio communications, including cell phones, may be interrupted.
(The wearing of aluminum foil hats is optional).
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