Sunspots
Location: Home
Date: 2017-09-02
Time: 6:15 PM - 7:45 PM ADT
Instrument: Binoculars, 10x30 IS with ND5 filters + 8" Meade LX200 with solar filter & 15 mm, 25 mm, 40 mm eyepieces
Temperature: 12º C
Partly cloudy becoming clear. Light breeze.
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Observation 1: There were 9 separate areas of activity, from very large to very small. (A) in upper left quadrant: One small black area with 2 even smaller areas adjacent to it. (B) in lower right quadrant almost on the centre line: 6 areas varying in size. The largest had a large perimeter of activity with 4-5 large areas that were black in appearance. The lowest sunspot and the one immediately below the large one were similar in structure whereas the other 3 had no visible perimeter around the area of activity. The limb definition was variable, indicating the heat radiation from the surface. |
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Observation 2: Saw 4 spots in the upper left quadrant. The smaller ones seen in the telescope couldn't be found in binoculars. The one spot in the lower right quadrant didn't show the very tiny 2 areas of activity as seen in the telescope. |
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Observation 3: Using the 25 mm eyepiece, caught 7 areas of activity in the FOV. Three of these areas had a grey area in which there was 1 to 5 dark spots of activity. The largest was located just off centre and contained 4 areas of activity varying in size. The 15 mm eyepiece more clearly showed there were 4 areas of activity; however, some of those areas could have been a combined large and small area. |
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