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Old 20-07-2022, 10:18 PM
Averton (P and C)
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The sun today 20 July 2022

We have been using Meteoblue to record the conditions of each of our observing sessions. There are three parameters given for seeing, one in arc seconds and two indexes that range from 1 (bad) to 5 (good). What is strange is that very frequently the arc seconds are quite low (around 1.0) but both the indexes are poor (1 or 2). We've never seen low arc seconds and high indexes. Today, however, there was agreement. The arc seconds was 3.38 and the indexes were 2 and 1 - basically poor seeing. And they were 100% correct.
In spite of this, there was blue skies, no clouds and no wind so we imaged anyway.
Ha images taken with Daystar Solar Scout 60 double stacked with Lunt 40 etalon, ASI178MM camera and 0.5 reducer.
White light images taken with 72ED, Meade white light filter, ASI178MM and 540nm filter.
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Old 20-07-2022, 10:22 PM
Averton (P and C)
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Some close up Ha images not using the reducer.
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Click for full-size image (2022-07-20 west small.jpg)
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Old 20-07-2022, 10:22 PM
Averton (P and C)
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One more close up.
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