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AR12712 in Ca-H light

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About this observation
Observer
Raffaello Braga
Time of observation
01/06/2018 - 07:00
Object
AR12712
Observing location
Milan (Italy)
Equipment
80mm apo refractor
Daystar Quark Calcium
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Image of Active Region 12712 taken in Calcium H light through a Quark filter, 2x Barlow and 80 mm refractor.

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