Solar Activity, 2004.07.20
2004.07.20 UT 17:13 - Sunspot groups. 1/50 sec exposure, Canon 300D, 300mm SCT stopped down to 100mm (f/30, FL = 3000mm).
2004.07.20 UT 17:13 - Sunspot group 652.
Solar Activity, 2004.07.20 |
2004.07.20 UT 17:13 - Sunspot groups. 1/50 sec exposure, Canon 300D, 300mm SCT stopped down to 100mm (f/30, FL = 3000mm). |
2004.07.20 UT 17:13 - Sunspot group 652. |
| ©2004 Chris L Peterson |
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