Sunspot 1990 Thrid Time Around

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Sunspot 1990 Thrid Time Around
Taken by Ron Cottrell on February 28, 2014 @ Oro Valley, Arizona

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Camera Used: Unavailable Unavailable
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Date Taken: 2014:02:28 13:12:11

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I imaged 1990 with my 40mm PST and a DMK 41 camera. Then I compared 1990 with its previous two appearances. From left to right are Sunspots 1944, 1967 and now 1990.

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Comments

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Think you accidentally posted the middle and right image twice, but different colorization?

Posted by wwooten 2014-02-28 16:25:53

OK, now I see all three images taken about a month apart. Think this was the set you wanted us to see and compare, not the three images of the current activity that came up first.

Posted by wwooten 2014-02-28 16:29:15

Thanks !

Posted by namlow 2014-03-01 02:37:29

My observation is the bigger head spot of rotation is switched to a smaller head spot of rotation for each rotation. I hope there is the fourth time around of AR1944 to show the switches in at least 2cycles.

Posted by namlow 2014-03-01 02:44:55

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