AR 2403

During the last couple of days a new giant sunspot group has slowly marched across the sun. So far I have managed to make two sketches. The group has increased both in size and complexity over the days, and I have found it quite challenging to sketch.

The sketches below has been rotated to match the images from the Solar and Heliospheric Observatory.

Sketched 22 August 2015, UT 08:00, using a SkyWatcher 10", masked down to 100 mm, and a Baader Hyperion 17 mm eyepiece (70x). Seeing 4/5. (The circle to the right represents the size of the earth.)
Sketched 22 August 2015, UT 08:00, using a SkyWatcher 10″, masked down to 100 mm, and a Baader Hyperion 17 mm eyepiece (70x). Seeing 4/5. (The circle on top approximately represents the size of the earth.)
xxx
Image: SOHO/HMI
IMG_0010
Sketched 23 August 2015, UT 13:30, using a SkyWatcher 10″, masked down to 100 mm, and a Baader Hyperion 17 mm eyepiece (70x). Seeing 3-4/5.
20150823_1330_hmiigr_512
Image: SOHO/HMI.
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