2010-02-02T11:41:08.000Z http://sot.lmsal.com Ted Tarbell LMSAL http://lmsal.com 3251 Hanover Rd, O/ADBS, B/252, Palo Alto, CA, 94304 +1-650-424-2400 tarbell@lmsal.com Hinode SOT Arikawa Sterling G Slater (RCO) 147 147 null HOP 147 penumbral growth on AR 11043 SS SS 11043 Active Region 11 245 491 0 0 2010-02-03T23:42:00.000Z 2010-02-04T04:30:00.000Z 245 491 Formation and Decay of Sunspot Penumbrae Mg sh-less IV 64"x82" + Ca H, GB, BC, RC, 75 "x87" formation of sunspot penumbrae