SPA SOLAR SECTION
Rotation Nos. 2107, 2108
A month with solar activity that split into two parts, in mid-month a day with very little, either side two lengthy periods of good activity . In the first half the NH had most activity , the second had activity in both hemispheres.
During the first week NH AR’s 1164,1166,1167 and 1169 spread across the disc , on the 7th., 1166 near the CM and 1164 nearing the W limb,1169 just in from the E and SH1165 was at the W limb . 1166 was a a fine gathering of some 18 sunspots, 1165 ditto with about 23 reported. In week 2 5 AR’s were visible by the 9th, with new small SH 1170 at the W limb. In week 3 the 16th. was the quietest day of the month, with just two small AR’s reported , NH1172 by the CM and 1169 in the W. On the 19th strong AR NH1175 was past the CM.
The month finished with good actiivity across both hemispheres, on the 27th 5 AR’s , the 28th. 6 AR’s , NH 1177,1180 and 1183 and SH 1176 , 1178 and 1181. SH1176 was a good AR in the week with a fine leader and follower. 16 sunspots being counted. NH1183 was a fine sight also with 18 sunspots on the 29th.
Lee Macdonald, on the 8th., saw the most active Sun he had seen in years, Bob Dryden making his highest MDF count since April 2006 . Malin Keal , John Docherty , Ian Phelps and Brian Gordon-States also registered high sunspot counts. Faculae was also much in evidence, Alan Heath regularly observing it.
Fine, detailed pictures were taken by Peter Paice, Ron Westmaas and Brian Woosnam , and drawings by Dale Holt .
MDF 3.10 R 52.01
The AR’s through the month showed a good amount of bright plaging, and flares associated with the stronger ones were observed by Brian Gordon-States and the Director on the 19th . ( AR1175) and Alan on the 8th. and 10th., (AR1164) . Lee reported probable ones on the 8th. , to AR1164 and 1166.
Prominences and filaments were good through the month , Ian Lee making his usual finely detailed drawings and records of the actiivity, including large bright prominences on the 19th. to the NE and SW , in the SE, NW and SW on the 21st. and a big, widespread SW hedgerow on the 23rd.
Excellent photographs came from Alan Clitherow, Brian Woosnam, Peter Paice , Ken Whayman and Peter Vasey .
To see a selection of the many pictures received, go to the Solar part of the SPA website , then to Monthly Reports.
Observers : Ian Phelps, Brian Gordon-States, Peter Paice, Alan Heath, Bob Dryden, John Docherty, Malin Keal, Ron Westmaas, Brian Woosnam, Lee Macdonald, Ian Lee Dale Holt , Peter Vasey, Ken Whayman, and the Director